841a98464457d2fceff8a35e6b575b1e5e0681f7232cb3c2b94c698e38960a25

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25/03/2024, 21:05

240325-zxdnnahe48 3

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Analysis

max time kernel
18s
max time network
18s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 21:05

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General

Target

Prefetch/SVCHOST.EXE-9EC0735B.pf
Size

4KB
MD5

c1aaaf6be346e019483f07c1524c6b6b
SHA1

0949f1ff1b3a9212a725aaaa8db5118d007a88ec
SHA256

0155de55b1c9594e865a0260d201324bccb5d0fea46009f16f3373a666ea64d6
SHA512

5120479910d73974cbc8228720f7aa403861c3484492c2d811e06897967a465f1db72e6cab3ee0208d1aee182157b7a2deecb83cd39f36043d27dd988b1ec1ca
SSDEEP

96:FqD3+fPenJ8LGxno90rvTbVEAZjt5CwGvbUTUysagGQR1Mg41:/GJ8KXrvTbHYZhTt41

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-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pf_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.pf	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.pf\ = "pf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pf_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pf_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pf_auto_file\	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2516	AcroRd32.exe
2516	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 2684	2104	cmd.exe	29
PID 2104 wrote to memory of 2684	2104	cmd.exe	29
PID 2104 wrote to memory of 2684	2104	cmd.exe	29
PID 2684 wrote to memory of 2516	2684	rundll32.exe	30
PID 2684 wrote to memory of 2516	2684	rundll32.exe	30
PID 2684 wrote to memory of 2516	2684	rundll32.exe	30
PID 2684 wrote to memory of 2516	2684	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\SVCHOST.EXE-9EC0735B.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\SVCHOST.EXE-9EC0735B.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2684
- - 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\SVCHOST.EXE-9EC0735B.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2516

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
82552c5c004dd8cfd98413e172f10a0f

SHA1
31d31bfc8bb585e1029d82ce576e4aa2862fc349

SHA256
91954cec053f6ded85453e687dc1905a3f28e81a0332eeadf92412a4ac4d01ed

SHA512
4df13a78cc4b0e23de5468087ca9c02f5c32946854a571d52c826c349ad90635d7d0b49ae1a4c52e4fbcf2d82f256c8b24d7cb9ccf12aab10bcf486c6609e791

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