c3f250ab11d40bc8e68d90efa095da80a4e2c285d3d04e1c52434158345e2b47

Analysis

max time kernel
45s
max time network
16s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08-05-2024 08:59

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General

Target

CVE-2023-38831/.git/hooks/prepare-commit-msg.sample
Size

1KB
MD5

2b5c047bdb474555e1787db32b2d2fc5
SHA1

2584806ba147152ae005cb675aa4f01d5d068456
SHA256

e9ddcaa4189fddd25ed97fc8c789eca7b6ca16390b2392ae3276f0c8e1aa4619
SHA512

50ec8a0dd98427e80a82a8d8ce44462a845876e1594c9d0e89483ce9a8aaad616edea0e5c45c1bb69d8fe7f520c6f2260d6fa350d77b400899c3ae375e965bfb

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
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sample_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sample_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.sample	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sample_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sample_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.sample\ = "sample_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sample_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sample_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2748 AcroRd32.exe
2748 AcroRd32.exe

pid	process
2748	AcroRd32.exe
2748	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2868 wrote to memory of 2652	2868	cmd.exe	rundll32.exe
PID 2868 wrote to memory of 2652	2868	cmd.exe	rundll32.exe
PID 2868 wrote to memory of 2652	2868	cmd.exe	rundll32.exe
PID 2652 wrote to memory of 2748	2652	rundll32.exe	AcroRd32.exe
PID 2652 wrote to memory of 2748	2652	rundll32.exe	AcroRd32.exe
PID 2652 wrote to memory of 2748	2652	rundll32.exe	AcroRd32.exe
PID 2652 wrote to memory of 2748	2652	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\CVE-2023-38831\.git\hooks\prepare-commit-msg.sample
1⤵
- Suspicious use of WriteProcessMemory
PID:2868

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\CVE-2023-38831\.git\hooks\prepare-commit-msg.sample
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2652

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\CVE-2023-38831\.git\hooks\prepare-commit-msg.sample"
3⤵
- Suspicious use of SetWindowsHookEx
PID:2748

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

MD5
137504c96416ef3a730e1d2ea3387851

SHA1
7e85cce0321322d3df3e7fb3616720e8df9994ca

SHA256
f571385abd08855fb51524c15920ffb104a26aaf64023787d5bc649945a2b301

SHA512
38c3bc2f60745cde1c9569f93f0c455923732715a7cb17df833801717d28c1b002ce8608824679ae3a725969cfa31af8a3aae001a31add10bee49ef88950d1c9

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