c596f5fa261648273af72a1d93b866ef0c8fabc8ccf370025250f6448dbc4f20

Analysis

max time kernel
152s
max time network
53s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
27/11/2022, 10:50

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

lib/os.pyc
Size

23KB
MD5

2e34b81cabfe5d0a88d6cd8d8733a582
SHA1

1ec0112301bb9b4439682f50d5a6dbd096239c26
SHA256

27722ffe85c9f31eded94ee409d527dae21a45b958db236a4544b6be644b7517
SHA512

f61b6c11be1782c48be39165ad82560960d536a63f6959d306626ddc62d4a7ebcf46ba49779dec14df7c1e18853485df955ac8668889d6e4c27780d83d466623
SSDEEP

384:EfV3QmcQEDFqJyKVPJPumFJ9ZKUyQp75r5lCB8LFDsL+LnwL+GLsHL1LfGLGGLqD:EtynD2NxeUhd5r5gB8LVsL+LwLhLsHLn

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 10 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\pyc_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1288 wrote to memory of 524	1288	cmd.exe	28
PID 1288 wrote to memory of 524	1288	cmd.exe	28
PID 1288 wrote to memory of 524	1288	cmd.exe	28
PID 524 wrote to memory of 1120	524	rundll32.exe	29
PID 524 wrote to memory of 1120	524	rundll32.exe	29
PID 524 wrote to memory of 1120	524	rundll32.exe	29
PID 524 wrote to memory of 1120	524	rundll32.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\lib\os.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1288
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\lib\os.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:524
- - 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\lib\os.pyc"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1120

Network

MITRE ATT&CK Enterprise v6

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

memory/1120-82-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

Filesize
8KB

Download
memory/1288-54-0x000007FEFBC31000-0x000007FEFBC33000-memory.dmp

Filesize
8KB

Download