0ecfa9e9370f383a669aad9db9a28109c24226496b519e7383713c7c1deaf861

Analysis

max time kernel
120s
max time network
124s
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/src/utils/__pycache__/common.cpython-310.pyc
Size

2KB
MD5

22b9c8546d9b37e7ade64bdb533b50ab
SHA1

2d2d3ce78b6c9c02ea2b454cc95a4deb4b2451c0
SHA256

0adce47274005ac8deba64c9f12fbaf2ca456c1781850f6a4413634d1c58a3f2
SHA512

2de270ffcdc4227f7b1b52e382185d8fb0aa3676223475b79b82bcebf169c8e6965ebd30af2ea553d645a5c8c8cf5bf2dc077d8854428538aad06448c37c6a58

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-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2440 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2440 AcroRd32.exe
2440 AcroRd32.exe

pid	process
2440	AcroRd32.exe

pid	process
2440	AcroRd32.exe
2440	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2948 wrote to memory of 2636	2948	cmd.exe	rundll32.exe
PID 2948 wrote to memory of 2636	2948	cmd.exe	rundll32.exe
PID 2948 wrote to memory of 2636	2948	cmd.exe	rundll32.exe
PID 2636 wrote to memory of 2440	2636	rundll32.exe	AcroRd32.exe
PID 2636 wrote to memory of 2440	2636	rundll32.exe	AcroRd32.exe
PID 2636 wrote to memory of 2440	2636	rundll32.exe	AcroRd32.exe
PID 2636 wrote to memory of 2440	2636	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Chronos\src\utils\__pycache__\common.cpython-310.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2948

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Chronos\src\utils\__pycache__\common.cpython-310.pyc
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2636

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\src\utils\__pycache__\common.cpython-310.pyc"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2440

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
1a11ae310c2f75a1d7fff981b9f51686

SHA1
da2735364c3df25c8a1bb0e6bb0fb23f35643ad4

SHA256
9e6422749d6d9c0e28750b40c3b01c92ec998a9788d03f5be12400f76670603b

SHA512
6ced9f40571e0e23a455869b0fc8d5f360db807ccc594115d695a7b0fad5a690d58b7ebec1a6f35531b5c8b6377cc898bbd8c8e414d98ef4a0b39dcddf5d31bf

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