0ecfa9e9370f383a669aad9db9a28109c24226496b519e7383713c7c1deaf861

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-03-2024 17:01

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General

Target

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

1KB
MD5

2c642152299a94e05ea26eae11993b13
SHA1

a599b773b930ca83dbc3a5c7c13059ac4a6eaedc
SHA256

ecce9c7e04d3f5dd9d8ada81753dd1d549a9634b26770042b58dda00217d086a
SHA512

cc98bbe0e3865e2023af04416e10689e3aecd3f3928cf90c2acc0d3d7306388886779025c8967c8ea198af1f4fe29d16c65d4e1d546c7a8fa513f5ba7df16850

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-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\sample_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.sample	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\sample_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_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-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\sample_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.sample\ = "sample_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\sample_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\sample_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2600 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2600 AcroRd32.exe
2600 AcroRd32.exe

pid	process
2600	AcroRd32.exe

pid	process
2600	AcroRd32.exe
2600	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2036 wrote to memory of 2572	2036	cmd.exe	rundll32.exe
PID 2036 wrote to memory of 2572	2036	cmd.exe	rundll32.exe
PID 2036 wrote to memory of 2572	2036	cmd.exe	rundll32.exe
PID 2572 wrote to memory of 2600	2572	rundll32.exe	AcroRd32.exe
PID 2572 wrote to memory of 2600	2572	rundll32.exe	AcroRd32.exe
PID 2572 wrote to memory of 2600	2572	rundll32.exe	AcroRd32.exe
PID 2572 wrote to memory of 2600	2572	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Chronos\.git\hooks\pre-push.sample
1⤵
- Suspicious use of WriteProcessMemory
PID:2036

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-push.sample
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2572

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-push.sample"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2600

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
b320cd9164781921ea42c5e9b0bf6a38

SHA1
03d24cd309c22094d162c7a022e9710e277a95da

SHA256
8e9711f4a19966890cdb779c9b055ccab14425ce64c9159fccafee8a9c68a36a

SHA512
6c31d8352e5d482ea61eb14159620e58bedd829154f1bcfda1096ca970ef46f3942fa819f1930bf14a59918aa9026d966bf8be473c88e54cad2f8f54a335ef48

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