841a98464457d2fceff8a35e6b575b1e5e0681f7232cb3c2b94c698e38960a25

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25/03/2024, 21:05

240325-zxdnnahe48 3

25/03/2024, 20:59

25/03/2024, 20:56

25/03/2024, 20:51

25/03/2024, 20:45

25/03/2024, 20:38

25/03/2024, 20:36

Analysis

max time kernel
29s
max time network
19s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 20:45

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General

Target

Prefetch/CMDVIRTH.EXE-15ACB64B.pf
Size

4KB
MD5

52203338a0cd8c1c7434292f2f2f410f
SHA1

d6f263d86ad900580b30e8fdfbcd484d7fd9548b
SHA256

ee37c8df0965ebffd5b069aed90b3b96ebcf6254ff75fd094e799f4454a06074
SHA512

4893ff53ba48964b9fd348a9005737f1f9bd1bd98c360a43d4877cfd2f4225ce32675dc301126e32533d4664156d082409057bd07d8f73715b97d7991a20bec8
SSDEEP

96:hDi2P8oZFESxjwRLkZ9wd1fzsn4+deRqGR0X7c3nboe/uvKl2qjNpy4t9:hDiuhFFwRLkV4+d7A3nboe/V2qpy4X

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
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pf_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\pf_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pf_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.pf\ = "pf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pf_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.pf	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pf_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2256	AcroRd32.exe
2256	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1524 wrote to memory of 2768	1524	cmd.exe	29
PID 1524 wrote to memory of 2768	1524	cmd.exe	29
PID 1524 wrote to memory of 2768	1524	cmd.exe	29
PID 2768 wrote to memory of 2256	2768	rundll32.exe	30
PID 2768 wrote to memory of 2256	2768	rundll32.exe	30
PID 2768 wrote to memory of 2256	2768	rundll32.exe	30
PID 2768 wrote to memory of 2256	2768	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\CMDVIRTH.EXE-15ACB64B.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:1524
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\CMDVIRTH.EXE-15ACB64B.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2768
- - 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\Prefetch\CMDVIRTH.EXE-15ACB64B.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2256

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

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

Filesize
3KB

MD5
95062dd5a9c25023bba8eed68b503fb1

SHA1
e2e07ddabfe9030b3e3b5aad50fd4fb229d194f3

SHA256
e8e27ad391abe3a3cfba759edaf29e17cd5f9be0f6c15bd63693556cdb6fb300

SHA512
e17460f91f4549c967eb2253acb7d4b4506bcdd614df6289bad54ea33b4aab8ae01f8400d4615fe0e1a6c306595ec0a4d6114359e78b86e59f8b9bb08c14ee40

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