0ecfa9e9370f383a669aad9db9a28109c24226496b519e7383713c7c1deaf861

Analysis

max time kernel
119s
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/src/utils/__pycache__/deleteFriends.cpython-310.pyc
Size

943B
MD5

56270951af1a58264faa2ad98ba231fc
SHA1

825ffa355cd95cde1b279f7483e3d22103331878
SHA256

1814ee676ef808dd51768c38fafbba0e5c3a5a89cd66b08269555ffa4cf408b0
SHA512

2fb63e4fbb06c0aab38adcebb5fbd83aeb62c4ceecfe4919886b848e39b7b9db56c905b8962d3ff303ae3ed6b45b02758dc25b8ffa578008ad991dd82ff908a8

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-1-5-21-3787592910-3720486031-2929222812-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_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-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2496 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2496 AcroRd32.exe
2496 AcroRd32.exe

pid	process
2496	AcroRd32.exe

pid	process
2496	AcroRd32.exe
2496	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2036 wrote to memory of 2576	2036	cmd.exe	rundll32.exe
PID 2036 wrote to memory of 2576	2036	cmd.exe	rundll32.exe
PID 2036 wrote to memory of 2576	2036	cmd.exe	rundll32.exe
PID 2576 wrote to memory of 2496	2576	rundll32.exe	AcroRd32.exe
PID 2576 wrote to memory of 2496	2576	rundll32.exe	AcroRd32.exe
PID 2576 wrote to memory of 2496	2576	rundll32.exe	AcroRd32.exe
PID 2576 wrote to memory of 2496	2576	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Chronos\src\utils\__pycache__\deleteFriends.cpython-310.pyc
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\src\utils\__pycache__\deleteFriends.cpython-310.pyc
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\src\utils\__pycache__\deleteFriends.cpython-310.pyc"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2496

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
aef3dabb02cedc9f9e92052dd8cd16ac

SHA1
acfe42321c3fa936dafce46528a97ca1959e8c31

SHA256
95a403bf761c7c2e2724c9b2b50f9bb9913131068d3591ffd3eca541f14425fc

SHA512
2345ce2bb272f833ea20c24ee83be07e030bf8ba3d3a79f7ac57c7e7875b797675637a7cebddb151f5a1c856046f53b81cf400aff6f62e8c9b8d9ec5a23ffbc8

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