f41530b3fa407d4ad80f76356f939b85d70b0b95858608de8149c0e54331eeca

Analysis

max time kernel
102s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
20-08-2024 23:04

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General

Target

Creal.pyc
Size

118KB
MD5

a50bb5d6acabe424d02dab1a91280871
SHA1

9f6e043edc153b78799cba50030f8b0fd8da2824
SHA256

71ce8d96ade33e71f4ebb46af96d45c8bf0e7fadba447530ca1d720d5e9fc2e4
SHA512

b53bbee2ffd5c6eba9b0a488a71279196b693ff04aa61af7fe7e01fbf6b8787052b0de3571e4b69f3ad34e0980bd38208ff791a79f75b5ea3d6e3027abd09d7e
SSDEEP

1536:WbrYtvlAgeRcHMP00jnR0yduQhK3URTLm4SFQxUhf0tjILmnbyc5YE0cV:WbktvlDYjqj93AxUf05v5YEH

Score

3^/10

discovery

Malware Config

Signatures

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_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-1-5-21-2257386474-3982792636-3902186748-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2848	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2848	AcroRd32.exe
2848	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1632 wrote to memory of 2928	1632	cmd.exe	31
PID 1632 wrote to memory of 2928	1632	cmd.exe	31
PID 1632 wrote to memory of 2928	1632	cmd.exe	31
PID 2928 wrote to memory of 2848	2928	rundll32.exe	32
PID 2928 wrote to memory of 2848	2928	rundll32.exe	32
PID 2928 wrote to memory of 2848	2928	rundll32.exe	32
PID 2928 wrote to memory of 2848	2928	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Creal.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Creal.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2928
- - 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\Creal.pyc"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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
9c85a4a1e0efa2fb212e3756cf119e3f

SHA1
464fa819c884537969816049dd948f921e06eab0

SHA256
a95e56c8cee75bcb5e3df7509e93c4caea2752d4d6918b58a5da419961edca5e

SHA512
7c81e38fec7eb843346d4c61524e682c4484184a868faa63a4f6509f251d1fd72c56ea7f19badabe9dba906b97cda6f4c49b522cf5b3bac4ed25dbfb1e09c570

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