e746f10a245a5cb3d8bf010dfa30e7de6430e1f248e88d9acbb88596d01c53be

Analysis

max time kernel
119s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 19:49

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General

Target

Chimera-1.4/modules/hibernate_module.py
Size

504B
MD5

0afe91f9a83ee6eecdf7ea0c7e6720a3
SHA1

b65e48c9bed4c6e53393fdd2a407c68865a604b1
SHA256

8ba783c9a99ddddcd6da9281c4599872eb67d990207137f2aa6e3bda11424408
SHA512

f4e61dc22ba20b8b868cf3ae9ba39bc344104e3fc7695f728f00acd1ae16940db922dd2960e7ec7259a9562721abc713fc95c57e30f00d9494fdf2b15724e354

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.py	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\py_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2648	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2648	AcroRd32.exe
2648	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 3000	2172	cmd.exe	29
PID 2172 wrote to memory of 3000	2172	cmd.exe	29
PID 2172 wrote to memory of 3000	2172	cmd.exe	29
PID 3000 wrote to memory of 2648	3000	rundll32.exe	30
PID 3000 wrote to memory of 2648	3000	rundll32.exe	30
PID 3000 wrote to memory of 2648	3000	rundll32.exe	30
PID 3000 wrote to memory of 2648	3000	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Chimera-1.4\modules\hibernate_module.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Chimera-1.4\modules\hibernate_module.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3000
- - 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\Chimera-1.4\modules\hibernate_module.py"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2648

Network

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
5c5806ebb5f909e3bd66082f5adfec21

SHA1
80e6ddad5ae96cdaca73c106b8b8f640999f3a50

SHA256
b022619019bc5887e5a8ac6d2d7dca5d2ade2fb4aabeb3e5aa6f03ae5e47849d

SHA512
0289e5ed57731ca7c4c0b838c4e43e3c71424a0a6e61bccde411ee4f64d2233738e555fa773bea1ac9629d9dd430e4d90486e9fce87daebf34345f33df94d07e

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