ff320cb28d20844a224c2d537341bb99e80a08ac11c783eee8b1115ad659ab1c

Resubmissions

01-07-2024 04:00

240701-ekp6pswana 4

01-07-2024 03:56

240701-ehn6mayfjl 4

01-07-2024 03:53

240701-efr5havhmd 4

Analysis

max time kernel
54s
max time network
67s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 04:00

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General

Target

Benefits & Compensation Letter For Skgcs Ops_GTDEFPPKILJROOT.pdf
Size

29KB
MD5

b603adccb7e31a4941c456a8f4f9ab3a
SHA1

1bfb0faf333b3ae1f3f4af68b71621a47a4f483a
SHA256

ff320cb28d20844a224c2d537341bb99e80a08ac11c783eee8b1115ad659ab1c
SHA512

bfff40882efda50e6fbac035f6a171da3da49d91c8c9fc7ef57c4652261c1180b340b2c0a273b50ad8352c18bedd9d8ab86dcade87e38036ad419c18718927c7
SSDEEP

768:Bs97XcbPttWmGN++w7w8OsuDC8WRKrQlsq3Dl5ZD:B+XpS7w8z6Wg0SIDrZD

Score

1^/10

Malware Config

Signatures

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

AcroRd32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AcroRd32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs
adware spyware

Modify Registry
T1112

Processes:

AcroRd32.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

4548 AcroRd32.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

AcroRd32.exe

pid process

4548 AcroRd32.exe
4548 AcroRd32.exe
4548 AcroRd32.exe
4548 AcroRd32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

pid	process
4548	AcroRd32.exe

pid	process
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe
4548	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

AcroRd32.exeRdrCEF.exe

description	pid	process	target process
PID 4548 wrote to memory of 2544	4548	AcroRd32.exe	RdrCEF.exe
PID 4548 wrote to memory of 2544	4548	AcroRd32.exe	RdrCEF.exe
PID 4548 wrote to memory of 2544	4548	AcroRd32.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 868	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe
PID 2544 wrote to memory of 3112	2544	RdrCEF.exe	RdrCEF.exe

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\Benefits & Compensation Letter For Skgcs Ops_GTDEFPPKILJROOT.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4548

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=16514043
2⤵
- Suspicious use of WriteProcessMemory
PID:2544

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=41EF2DC66142EBDAAAF2664815C818E0 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:868

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=B0854DA7C809EA45B64BDF90FB7499A7 --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=B0854DA7C809EA45B64BDF90FB7499A7 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
3⤵
PID:3112

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=731CBF21DB32BF98E595D2E4234DE698 --mojo-platform-channel-handle=2316 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:512

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=82629C4C096BA6618672E2D3D404F095 --mojo-platform-channel-handle=1928 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:4292

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=6F8DCE166E85850FCB82E6D7546241B9 --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=6F8DCE166E85850FCB82E6D7546241B9 --renderer-client-id=6 --mojo-platform-channel-handle=2448 --allow-no-sandbox-job /prefetch:1
3⤵
PID:2028

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=A99D34174220181AA29307E111F3D762 --mojo-platform-channel-handle=2780 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:1064

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4008

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Filesize
36KB

MD5
b30d3becc8731792523d599d949e63f5

SHA1
19350257e42d7aee17fb3bf139a9d3adb330fad4

SHA256
b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

SHA512
523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit