0ecfa9e9370f383a669aad9db9a28109c24226496b519e7383713c7c1deaf861

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
22-03-2024 17:01

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General

Target

Chronos/.git/hooks/pre-rebase.sample
Size

4KB
MD5

56e45f2bcbc8226d2b4200f7c46371bf
SHA1

288efdc0027db4cfd8b7c47c4aeddba09b6ded12
SHA256

4febce867790052338076f4e66cc47efb14879d18097d1d61c8261859eaaa7b3
SHA512

00d21d5d72386c3d9b5a1c36ba85201f730556a8295d4353af54af7892ab81010d42aff209ec1fda61c54e4dda3737cea5fda64f09d40ce5004ae28239565025
SSDEEP

96:vJ7EgXasqXq6zaqK1ep8m5MDVUT2bTEwEWDhG38deyig9yhCLtQH:vJ4gXasI1zaqKwUTHhzeyil4tm

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-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\sample_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\sample_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\.sample\ = "sample_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\sample_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\sample_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\.sample	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\sample_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\sample_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2580 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2580 AcroRd32.exe
2580 AcroRd32.exe

pid	process
2580	AcroRd32.exe

pid	process
2580	AcroRd32.exe
2580	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2908 wrote to memory of 2576	2908	cmd.exe	rundll32.exe
PID 2908 wrote to memory of 2576	2908	cmd.exe	rundll32.exe
PID 2908 wrote to memory of 2576	2908	cmd.exe	rundll32.exe
PID 2576 wrote to memory of 2580	2576	rundll32.exe	AcroRd32.exe
PID 2576 wrote to memory of 2580	2576	rundll32.exe	AcroRd32.exe
PID 2576 wrote to memory of 2580	2576	rundll32.exe	AcroRd32.exe
PID 2576 wrote to memory of 2580	2576	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Chronos\.git\hooks\pre-rebase.sample
1⤵
- Suspicious use of WriteProcessMemory
PID:2908

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Chronos\.git\hooks\pre-rebase.sample
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2576

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\Chronos\.git\hooks\pre-rebase.sample"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2580

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
dfd1cff6f4a12a693408bcc6599ec9a6

SHA1
573b7b5bd2413c86e6e525e22c90244ed4956b4c

SHA256
f29673fe80fa609d4f3a9162b62dfbc12f3d946ebae23c5025b588d9a7a52d4e

SHA512
46f1cb4a9b922a52005c22c3da41a807402e5eb1989030a685797ee5b29500a511449be089315554bffd28cbef33f9d7febdf27e716f18050d98559599f72cd1

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