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
18s
max time network
16s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25-03-2024 20:59

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General

Target

Prefetch/UNCSETTING.EXE-1EA31F7D.pf
Size

9KB
MD5

6b64fc75331e61a911b68c046d412082
SHA1

8cf01b870e87273139115965beee3e03c77b5200
SHA256

6babfb4070f7eff283760e5a760c986c99c9190401ee251abc302c92327a97bc
SHA512

8326ec6016452c88d5ae005244da2ba0b1139f653e11cc2fd0864d67ea13a52eada3b8d846697c1246fc36cd1232b38c4a2cf190ca0c53cfb42d71b2481341ef
SSDEEP

192:AjbzqoWm3wYGzV+/QTp6G3kaWTQQpgf2zhLs1W4K9m0c6k80iy9I2KkS0Kb5yoHz:0odp6+WcQhzh9dAx6kcpIY5pT

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-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pf_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_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-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pf\ = "pf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pf_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pf_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pf	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2428	AcroRd32.exe
2428	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 2536	2808	cmd.exe	29
PID 2808 wrote to memory of 2536	2808	cmd.exe	29
PID 2808 wrote to memory of 2536	2808	cmd.exe	29
PID 2536 wrote to memory of 2428	2536	rundll32.exe	30
PID 2536 wrote to memory of 2428	2536	rundll32.exe	30
PID 2536 wrote to memory of 2428	2536	rundll32.exe	30
PID 2536 wrote to memory of 2428	2536	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\UNCSETTING.EXE-1EA31F7D.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\UNCSETTING.EXE-1EA31F7D.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2536
- - 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\UNCSETTING.EXE-1EA31F7D.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2428

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
df8c5edfd9578f2ff50086265fd4e348

SHA1
9fe506412583a40c5878e6c4e008f37bdb8c8d31

SHA256
578d23df5df2c43cb714ae781e56d89f40523d6bd9356ed4f9a0d47643d45306

SHA512
d79c4ef9f54c8d693affd8dfd0623a800f4b4b50412e4c8c82ddf8a79b36c6cf863adcaa4c0511f53da682f4b13781884914d75e769752a5d2f979e7d0a07333

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