f7becf3fa06006d4f12f7c6b04cdded8ceed0d97cca3b76157d157d3f6257b34

Analysis

max time kernel
142s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 04:44

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General

Target

f7becf3fa06006d4f12f7c6b04cdded8ceed0d97cca3b76157d157d3f6257b34.dll
Size

424KB
MD5

4af4f3666ccdefddc9ccf9ba7a7a549c
SHA1

1a97245dd601ea82bed3c5475565d9678beef772
SHA256

f7becf3fa06006d4f12f7c6b04cdded8ceed0d97cca3b76157d157d3f6257b34
SHA512

dfac6088677e15b732aea519d8db518aa1a2d052e24e1da4fda9890b55f6788358c360dc3a759814efa3ad6b8fe62a90807f15685e81a0af70f6c245ad46c5ca
SSDEEP

12288:CAxQYR/OYEFH37Qghy6nKJoDBQ/DwBjvrEH7Tf:tP2h6oDCerEH7Tf

Score

8^/10

persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.

Processes:

resource yara_rule

C:\Program Files\Common Files\System\symsrv.dll acprotect
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

904 rundll32.exe

resource	yara_rule
C:\Program Files\Common Files\System\symsrv.dll	acprotect

pid	process
904	rundll32.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Program Files\Common Files\System\symsrv.dll	upx
behavioral2/memory/904-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/904-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File created C:\Program Files\Common Files\System\symsrv.dll rundll32.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 904 rundll32.exe

description	ioc	process
File created	C:\Program Files\Common Files\System\symsrv.dll	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	904	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2620 wrote to memory of 904	2620	rundll32.exe	rundll32.exe
PID 2620 wrote to memory of 904	2620	rundll32.exe	rundll32.exe
PID 2620 wrote to memory of 904	2620	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f7becf3fa06006d4f12f7c6b04cdded8ceed0d97cca3b76157d157d3f6257b34.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2620

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f7becf3fa06006d4f12f7c6b04cdded8ceed0d97cca3b76157d157d3f6257b34.dll,#1
2⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
PID:904

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3892 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
1⤵
PID:1584

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Program Files\Common Files\System\symsrv.dll
Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/904-0-0x0000000075240000-0x0000000075241000-memory.dmp

Filesize
4KB

Download
memory/904-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/904-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download