550321da5b10c472bc719bca2c0df74b240f80eff828079eb5253598fe112ae3

Analysis

max time kernel
122s
max time network
128s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
02/03/2024, 15:33

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General

Target
SAMP/samaps.txd
Size 640KB
Sample240302-szhxtsef2y
SHA256 d7a10e2d6497865377f61061abc13c5b7d1c81f8471410c80191640e04948285
MD5 e0fdfd9fbe272baa9284e275fb426610
SHA1 d64ba932095df01aec31255147078d8820f500df
SHA512 81f1c09b649776c935559d420214e9543c1e7a9690a79de43a06df03af6dd54151755e010ea9d06a33058ab5743b30a27816d35f6729657439c6251ee19f1122
SSDEEP 12288:RVghsoZfX3GnUKMiFnGWOKPzP0Intv+LecSVNjIaS4MzB8wdqhPmbxE1fJ:7UZuiikWOKRtGLecqIntB8wFsR
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\txd_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.txd\ = "txd_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\txd_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\txd_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\txd_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\txd_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.txd	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\txd_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2616	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2616	AcroRd32.exe
2616	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2184 wrote to memory of 2584	2184	cmd.exe	29
PID 2184 wrote to memory of 2584	2184	cmd.exe	29
PID 2184 wrote to memory of 2584	2184	cmd.exe	29
PID 2584 wrote to memory of 2616	2584	rundll32.exe	30
PID 2584 wrote to memory of 2616	2584	rundll32.exe	30
PID 2584 wrote to memory of 2616	2584	rundll32.exe	30
PID 2584 wrote to memory of 2616	2584	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\SAMP\samaps.txd
1⤵
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\SAMP\samaps.txd
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2584
- - 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\SAMP\samaps.txd"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

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Downloads

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 2d12d3ae2cff01b9ac2f899023e166e6b32ec18a9dea987d1549a2602d801bbf
MD5 20d06fd3a7a70d12643c4b6afe3bd3cd
SHA1 8b66c4b62229c5a934420dce68115e39934ef651
SHA512 33eed86de1ea7ed3a4bef5f11301f32d5f068521f5a7a7742d45a747f7fe14e0482e0b4f5497c06b1f0fb081b50eff252f38c9cdd18b6a963624ebe0e6082cd8
MD5 SHA1 SHA512

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