399b296b21cca504e716f53dddc8d01ab781b4592306320cb8b80ddcdfda333d

Resubmissions

03-08-2024 05:15

240803-fxwppaygne 10

03-08-2024 05:14

240803-fw2jjsvakq 10

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
03-08-2024 05:15

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General

Target

Stub.pyc
Size

178KB
MD5

03c51d5d2690c613e085153d7cca80a2
SHA1

b955fb0d42ea8f445ad6fb2395bf8480e028693a
SHA256

0dbff9c19efe825382a31a93808cc9e6ed55c7112788d908e45dd9e382618f18
SHA512

431f9bbacab31d405613c740edf147f5c7fdd8ce574e1a3b23787c3a3b5913694313d7a94396b16599f7f81c1675a58f2d968eac39fa2313d3189771caefb584
SSDEEP

3072:iPGcc87YoHEj0SsnjCuGUvO92ebnxVZ7uuG6ZX9cvVaNqSgmZ/3MJ1yBx/S0+E:iPGQ7jcvJ92eb1cvVyd3Yy+E

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
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2124	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2124	AcroRd32.exe
2124	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 1508	2132	cmd.exe	31
PID 2132 wrote to memory of 1508	2132	cmd.exe	31
PID 2132 wrote to memory of 1508	2132	cmd.exe	31
PID 1508 wrote to memory of 2124	1508	rundll32.exe	32
PID 1508 wrote to memory of 2124	1508	rundll32.exe	32
PID 1508 wrote to memory of 2124	1508	rundll32.exe	32
PID 1508 wrote to memory of 2124	1508	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Stub.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Stub.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1508
- - 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\Stub.pyc"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2124

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
e50296b9435694f66919d237fc78db1d

SHA1
45c4f3cc3943ec75a3e458e1c7629c24ab3b392c

SHA256
972ce60dabad7e576348fc570c457f65e0d7a7ee1ee5b8acc88145b42fe70825

SHA512
8a848d0e37aa715287c589631fb6b428162eb01252af02c555aeafb301974bed7290dd5ea73309c08ccbc7c794ff934700179773cfc50d8969994a95e90b1a74

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