190aa963a6a8f6baf8454264cb86dda5a318d09c731be0e1bfe1275473ce8058

Analysis

max time kernel
150s
max time network
120s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
27/11/2023, 15:07

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General

Target

abc.pyc
Size

8KB
MD5

55eca4895d9663db2cf0f7e5fc2979d0
SHA1

71acdc8d851bb34c8d349ea5d0ced79860508702
SHA256

34361a95c9ade263424795d9c92ae5ef3af4038ca1de6b60ba724bc60f9a5f5d
SHA512

358341792d06b65caa92a97d3cfc4681cc4a5f997decf850e3fb3a7f4024950f5a729ca5e15bc173af773e2f1fd761f966797fdaf8ffe7fba9d02ae8f2e36db9
SSDEEP

192:S2+dPNnn84ttUUIs1p2lYUtCqMNbH/7fLrXLk5ebmzuUAlu:S2+dPxtttbzqMxXLk5eCMlu

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-1-5-21-3618187007-3650799920-3290345941-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000_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-1-5-21-3618187007-3650799920-3290345941-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000_CLASSES\pyc_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2612	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2612	AcroRd32.exe
2612	AcroRd32.exe
2612	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2576 wrote to memory of 2880	2576	cmd.exe	29
PID 2576 wrote to memory of 2880	2576	cmd.exe	29
PID 2576 wrote to memory of 2880	2576	cmd.exe	29
PID 2880 wrote to memory of 2612	2880	rundll32.exe	30
PID 2880 wrote to memory of 2612	2880	rundll32.exe	30
PID 2880 wrote to memory of 2612	2880	rundll32.exe	30
PID 2880 wrote to memory of 2612	2880	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\abc.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2576
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\abc.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2880
- - 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\abc.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2612

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
e56c0553c316f765447528f73f9c2f15

SHA1
27cad3a5ccb7e41397fb53c2ebe6d30b3a0a13dc

SHA256
7dedcf921829f020e0e7763aee278981b61d159f6c6c6370ace375cc2cda8f66

SHA512
0a73b8dcd1e6015a58032e9a693dfd506ad79e219d81d0d155fb0a98f416dcf945fad26772b6edd31b59dd43de289ef1183ef0518869346fc08b24c6747de4a0

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