841a98464457d2fceff8a35e6b575b1e5e0681f7232cb3c2b94c698e38960a25

Resubmissions

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
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, 20:56

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General

Target

Prefetch/WINSTORE.APP.EXE-193C62D5.pf
Size

85KB
MD5

92642d3bf8c3e7ac304b2a7545272ab0
SHA1

e945cf6458338737fdd9dbcb8ae3a9384bb14bcf
SHA256

369b853d29ac0d1849abbaa92361836a19c0e2182414e75461caca5458c0cb91
SHA512

2e7f2e5a02398032dec731e2b5cb921a88afd31e8f45d4590cfb1bddc85ebe8d53369ea631fdcec991a96f4eb354981cb0b4d3362b9070bd8fa27bb4c263664a
SSDEEP

1536:hN8tyF1OdxQj3olwA3qZne3BnkcCyp1zmKiQEYEhHY2NrYphWXsPVZM24SrWkibw:hN8tyvOq3olJ3lBnkI1C2EzxUWrSrhi0

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_auto_file\shell\Read	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
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\.pf	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\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
2588	AcroRd32.exe
2588	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 2816	1672	cmd.exe	29
PID 1672 wrote to memory of 2816	1672	cmd.exe	29
PID 1672 wrote to memory of 2816	1672	cmd.exe	29
PID 2816 wrote to memory of 2588	2816	rundll32.exe	30
PID 2816 wrote to memory of 2588	2816	rundll32.exe	30
PID 2816 wrote to memory of 2588	2816	rundll32.exe	30
PID 2816 wrote to memory of 2588	2816	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\WINSTORE.APP.EXE-193C62D5.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:1672
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\WINSTORE.APP.EXE-193C62D5.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2816
- - 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\WINSTORE.APP.EXE-193C62D5.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2588

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
addcff989cbd9aa40153c06beef30541

SHA1
d81279b96fdae7acc4b9e668f94032728ecec429

SHA256
bc9a0219f405fa6c1043d43f2d1dd5c14cd674d8921d1eac537bf0f8bb9cd572

SHA512
a06043214a1ef5e9214a31df7e343481a9ae0bcf5427a745d77dae187d593159f82f1ed41dd813d5a6baf3942b419dd139a43c5271ff1939acb1b4eae1308f5c

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