093a1aa2ea664ca296b41a0e4c19cfcdfb6e7bfceb6b439e8e5cb30ebc936340

Resubmissions

11/09/2024, 07:12

240911-h1mmasyhmf 7

11/09/2024, 07:06

240911-hw41sayfqe 7

Analysis

max time kernel
102s
max time network
16s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
11/09/2024, 07:06

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General

Target

StashSwapper.pyc
Size

2KB
MD5

b74d1a89927dabe4ee42eccbbe65fa5f
SHA1

bb47882f7357de42935bcd1615d47f77c4555d03
SHA256

28977353b659a8fd1a50f138d279457b6aa5006a02abe00b539bcb24d5446be0
SHA512

9379481f17f68892c206dd9b21bc06306419b41f76b20766ec1aa268d393ca1c7f25761ed1cac2799d05dec6b0b4179e0f407da0c2de55ddae590ca89e682462

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
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
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\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2784	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2784	AcroRd32.exe
2784	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1328 wrote to memory of 2884	1328	cmd.exe	31
PID 1328 wrote to memory of 2884	1328	cmd.exe	31
PID 1328 wrote to memory of 2884	1328	cmd.exe	31
PID 2884 wrote to memory of 2784	2884	rundll32.exe	32
PID 2884 wrote to memory of 2784	2884	rundll32.exe	32
PID 2884 wrote to memory of 2784	2884	rundll32.exe	32
PID 2884 wrote to memory of 2784	2884	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\StashSwapper.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1328
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\StashSwapper.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2884
- - 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\StashSwapper.pyc"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2784

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

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
6faf3cd31bd2804922c96e175c9c8042

SHA1
003e7fc1b752c4d82f094649b19ec09982a9e2af

SHA256
9ed5e25ed1a15bf07fe1ee4726f82552d6190dd6347c890358e636a100b7ed0d

SHA512
d697b24b731f184b35de2107667aabb88746baa80640e4e166a49be446492d2b9ed859fb4fc30d316e82df13fa742aab0a48f3ccf55458fe8081af69a805ee10

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