0747bdbef42f7e6c804fd771e800bfa3e7fecf696e10d273953d3e35d75f2889

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
01/08/2024, 04:31

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General

Target
source_prepared.pyc
Size 168KB
Sample240801-e5rj9ssbmm
SHA256 edc439ceb8b105a84a60726e28a33825b1a76013e41d15eb496861ba1b9344be
MD5 c3ebc17f509b5da7ec3826cc34286a0a
SHA1 e97c152c48fafe9345c23082ee7a5c7efaa342a6
SHA512 561553e8c7ea4606708715afa18df42f3242307cfc6738a61867792b003c3833b315e267a4a682dd44ca1228899ab5e1c85574734675a8009a20dd42b6d30f63
SSDEEP 3072:smtRaOO9D4SDzvFoXPZTJ0pZXScT0sMIvdXz1sTWP:syRaOO9D4S/Fo4pUY0s/sS
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_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-1-5-21-940600906-3464502421-4240639183-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\.pyc	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2872	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2872	AcroRd32.exe
2872	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 2128	1984	cmd.exe	31
PID 1984 wrote to memory of 2128	1984	cmd.exe	31
PID 1984 wrote to memory of 2128	1984	cmd.exe	31
PID 2128 wrote to memory of 2872	2128	rundll32.exe	32
PID 2128 wrote to memory of 2872	2128	rundll32.exe	32
PID 2128 wrote to memory of 2872	2128	rundll32.exe	32
PID 2128 wrote to memory of 2872	2128	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\source_prepared.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\source_prepared.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2128
- - 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\source_prepared.pyc"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2872

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

Replay Monitor

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Downloads

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 ffda614bc6911f1eff5d5f22594d41d5586abaa0827c53c833b49cba7ef60722
MD5 3d70da9f09b277730d71a7895b7161da
SHA1 feb9658822fa2da53d495fd62a0bee23211a8632
SHA512 6ee11949cd797f07bcd74ae682908f29fa272f844dbcbbd5b20ba71946fd5f3c55c6b326a38433496bac864e511cbd595d88100b45141d98089500ef2b8781a6
MD5 SHA1 SHA512

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