e746f10a245a5cb3d8bf010dfa30e7de6430e1f248e88d9acbb88596d01c53be

Analysis

max time kernel
121s
max time network
126s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 19:49

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Chimera-1.4/lib/__init__.py
Size

213B
MD5

dadb49ee09a46603666dfc8f206e2a43
SHA1

b734d7ade2ce07096e7e31ec82420306897bb748
SHA256

dca8b569bbe2c59ed64da7285bd43ae5832764f5c5a6e531e4d7837f08649ce8
SHA512

1c898855fdb7e298a9abcc4d7802273b19b911222ea4cdbf018743b5eb51dddd546f5bf10c4e40c4553c49e12c9b3728d92f619ae194f033ccd6e32ef328982e

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-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.py	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2488	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2488	AcroRd32.exe
2488	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2160 wrote to memory of 2588	2160	cmd.exe	29
PID 2160 wrote to memory of 2588	2160	cmd.exe	29
PID 2160 wrote to memory of 2588	2160	cmd.exe	29
PID 2588 wrote to memory of 2488	2588	rundll32.exe	30
PID 2588 wrote to memory of 2488	2588	rundll32.exe	30
PID 2588 wrote to memory of 2488	2588	rundll32.exe	30
PID 2588 wrote to memory of 2488	2588	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Chimera-1.4\lib\__init__.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2160
- 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\lib\__init__.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2588
- - 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\lib\__init__.py"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2488

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
6d3811e942495d459f8aa3635f0533ae

SHA1
4577eb36637ed5cd0444ecc9569d88c2e98732c4

SHA256
75104d7681a270ce1dc5ae1e388cec14eafc898332dbd4ea3794e4eb17d4ed76

SHA512
04201640b00d8d79ffbada434c2d358b7d5da3e634ce831b950afc4022e0a8f8ed0a6ccfcc50c104744253c0bee66ca09ba29279965ddb236afc4a7e9f461600

Download Submit