faad96bbcc51f115c9edd691785d1309e7663b67dcfcf7c11515c3d28c9c0f1f

Analysis

max time kernel
121s
max time network
128s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
26/03/2024, 21:41

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General

Target

MinGW64/bin/lib/encodings/big5hkscs.py
Size

1KB
MD5

465ae23475b55a28c248a0355c429a90
SHA1

08826705a2a30790087251ee3d78299226f1c3a8
SHA256

21d051a00fb5c6a86ba187e0c50e811d659ce00991fd5f5b408f71ebb2ef0f16
SHA512

29e13a9b237a6b4c479999cabff4d134d29efba899a957cbb65bc1e09340077d1768728bbcfb935d8e06bd2006e2c4d218c73106f07dd2ece62fc36e4f9fe3e0

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	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	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
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_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3064	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3064	AcroRd32.exe
3064	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3024 wrote to memory of 2632	3024	cmd.exe	29
PID 3024 wrote to memory of 2632	3024	cmd.exe	29
PID 3024 wrote to memory of 2632	3024	cmd.exe	29
PID 2632 wrote to memory of 3064	2632	rundll32.exe	30
PID 2632 wrote to memory of 3064	2632	rundll32.exe	30
PID 2632 wrote to memory of 3064	2632	rundll32.exe	30
PID 2632 wrote to memory of 3064	2632	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\MinGW64\bin\lib\encodings\big5hkscs.py
1⤵
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\MinGW64\bin\lib\encodings\big5hkscs.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2632
- - 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\MinGW64\bin\lib\encodings\big5hkscs.py"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:3064

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

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Downloads

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

Filesize
3KB

MD5
113b7c0ce23a0222e1a212377c311ff8

SHA1
8219e742914effce6e9033ee2faa8bb4e977e01c

SHA256
1dadfc49eb5733297c2a7b3171e602ae4c0f53b962bea0974531cf861b66b12e

SHA512
0433888f6bb24be42667de17e6798c99f194469cceb3408cbfec524c44cb2182958eba249179967ac8df56f370cb97a632e0126d9b02c5d16d47d14bca242d84

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