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
19s
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-8C0617FB.pf
Size

7KB
MD5

1454b5855384793cb814570516f6a486
SHA1

e9906bde07f0a8cb3487544cc65a7cf6a731f083
SHA256

ef728e4513122e47a939d1511428a293615ab8db1a31aae55ef9c28e8e561e0c
SHA512

a8bcd630ed47281c3a977bba064b34077f541b5abab5e56ac931516225231582ca0aa32e6c4c21d4144847f538523ea6a40da7cd693d5709daa4a4e088281be9
SSDEEP

192:R+9O84YJRMWQqLqublMO2AbbNTotKkfZWrnPcbOdFFPR90WoRot:RFYJMg52sTWcLPrdbPMNRot

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-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\pf_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\.pf	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\pf_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\pf_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\.pf\ = "pf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\pf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\pf_auto_file	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2520	AcroRd32.exe
2520	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 2648	2192	cmd.exe	29
PID 2192 wrote to memory of 2648	2192	cmd.exe	29
PID 2192 wrote to memory of 2648	2192	cmd.exe	29
PID 2648 wrote to memory of 2520	2648	rundll32.exe	30
PID 2648 wrote to memory of 2520	2648	rundll32.exe	30
PID 2648 wrote to memory of 2520	2648	rundll32.exe	30
PID 2648 wrote to memory of 2520	2648	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\SVCHOST.EXE-8C0617FB.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:2192
- 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-8C0617FB.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2648
- - 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-8C0617FB.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2520

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
80d5eece39b44276eff1d7f8e0cbca7f

SHA1
eec4cfe43e69bf9bdf7c04f863ce5b0e515d94b6

SHA256
6cc9c6344fe5683ab17436ea593b815145ce25da8a3f60a729ef519770e6d2b4

SHA512
22a2cc03f3dd8229a793fd9e2c4af1a2c908195a99436e2d0d3ddb7ef2b0685637ce0d6497f3562b5706a919d2f85d42aa63b01babbb146c8254b5bf043ac23f

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