0fd4dbac52375aca25608b5a4e82c929db4af1b0860e3102122350843fe79bf6

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
26/08/2023, 06:54

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General

Target

decrypt.py
Size

2KB
MD5

9f4ba2880811dd1cd962c1ebc2be97df
SHA1

c7edafa685312532b7269ae2de77284510e01fc1
SHA256

42714032aba5c066f0ce7dc542e522caf9d42703efe6da6eba7cb82a6349d19e
SHA512

c2f555d707a99f5724929d60560bc547af08d10b0cbe2aceef212fcb1083d7d998a6220b81c366a31e9835d07d1114924879b93093ccad04e256d0e53b3d5d4d

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-1-5-21-3408354897-1169622894-3874090110-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3408354897-1169622894-3874090110-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3408354897-1169622894-3874090110-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3408354897-1169622894-3874090110-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3408354897-1169622894-3874090110-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3408354897-1169622894-3874090110-1000_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-1-5-21-3408354897-1169622894-3874090110-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3408354897-1169622894-3874090110-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3408354897-1169622894-3874090110-1000_CLASSES\.py	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2836	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2836	AcroRd32.exe
2836	AcroRd32.exe
2836	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 2876	3064	cmd.exe	29
PID 3064 wrote to memory of 2876	3064	cmd.exe	29
PID 3064 wrote to memory of 2876	3064	cmd.exe	29
PID 2876 wrote to memory of 2836	2876	rundll32.exe	30
PID 2876 wrote to memory of 2836	2876	rundll32.exe	30
PID 2876 wrote to memory of 2836	2876	rundll32.exe	30
PID 2876 wrote to memory of 2836	2876	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\decrypt.py
1⤵
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\decrypt.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2876
- - 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\decrypt.py"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2836

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
2113edde37c64cd39a7454da39793364

SHA1
21442be69176d38db258aad5a2c967e9135a8301

SHA256
1abe542b58dd04f807d9d218da3ab1e9933c1c397eec3330a58a242d62e06aa6

SHA512
5766dc88e05aa3da842b82c17551d7a67de45b1a76d0dacb63b15a7073ca615b9d1b1a108776616665e4e481a5e3e1a8270088b5ed08d24c6a9a744a7f8bc13e

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