2c3a2b9bf44cabeac520d4b22e37e0e7059f325b0c2cabc23242fe6559bf0e96

Analysis

max time kernel
121s
max time network
126s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
30-06-2024 14:40

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General

Target

lib/xml/sax/expatreader.pyc
Size

12KB
MD5

272473179c106514d0e6c4c8333f23fb
SHA1

c16e8bffc1ecf598ea76f993abc27f153f8c0253
SHA256

988603e5b6e3c933f04db605046a09a068154cbe389d34a2d23d45b0dad14478
SHA512

dcaace74ce5db8ccd35cd4a17976f22fc339896bf2438700c19c305d5dd4e8b203df6f7ac4adf8d6e88a7f1d56b08a355cd7468a0559ae86fda4eaf1af7f6024
SSDEEP

192:7paG3dss+tAC79LxszowqLyRw/uwDB13zjowBeIYr744zDFQiJ3b4GhmbnnfSqwy:7z+tACtxN5Pzjow6fr49nigP7R0ev

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2788 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2788 AcroRd32.exe
2788 AcroRd32.exe

pid	process
2788	AcroRd32.exe

pid	process
2788	AcroRd32.exe
2788	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1108 wrote to memory of 2672	1108	cmd.exe	rundll32.exe
PID 1108 wrote to memory of 2672	1108	cmd.exe	rundll32.exe
PID 1108 wrote to memory of 2672	1108	cmd.exe	rundll32.exe
PID 2672 wrote to memory of 2788	2672	rundll32.exe	AcroRd32.exe
PID 2672 wrote to memory of 2788	2672	rundll32.exe	AcroRd32.exe
PID 2672 wrote to memory of 2788	2672	rundll32.exe	AcroRd32.exe
PID 2672 wrote to memory of 2788	2672	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\lib\xml\sax\expatreader.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1108

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\lib\xml\sax\expatreader.pyc
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2672

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\lib\xml\sax\expatreader.pyc"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2788

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
e48709694b7c0b9df315c4ddf0f78a23

SHA1
17d081563c6b070e4b197d1449e3aaf57c74fec8

SHA256
82c9bef8c506b565de6fc7f1c0f00b10ea4be2cfcb3c9a5023e58126cc6df630

SHA512
4473600c19a74354d433b08d343edfc974fa05ec02bdad28e247f4420eb6f00136fb6779dd278514fd9de2dd2bf43d09a78a874415c63b5ed02382209e27d7c8

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