841a98464457d2fceff8a35e6b575b1e5e0681f7232cb3c2b94c698e38960a25

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25-03-2024 21:05

240325-zxdnnahe48 3

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Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
25-03-2024 20:38

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General

Target

Prefetch/AUDIODG.EXE-AB22E9A6.pf
Size

6KB
MD5

07f101a9578a9f9e03f3cc769b18c9e6
SHA1

17cd03dc9eabfec7e40ac1dc6daae033177ac97c
SHA256

4f2a633774994f884b6634ac1b0b77f063d7adbd80675958edd34880439d2fc3
SHA512

8eb0a0d22e715255d524f9f56d8106568135b36d0b6f4c5e3b0c5e51c5900dfcc31f90e2423008933005c8f5c5c1081ece3f25b4ced7f509171694e0b669405b
SSDEEP

192:h6HISI8NVXv0U2DDR4tpfI7JVK6+27tNhYKb6grh/:5o72DDQ27fL+9Zi/

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-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pf_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pf	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_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-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pf_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pf\ = "pf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pf_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2696	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2696	AcroRd32.exe
2696	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 2500	2868	cmd.exe	29
PID 2868 wrote to memory of 2500	2868	cmd.exe	29
PID 2868 wrote to memory of 2500	2868	cmd.exe	29
PID 2500 wrote to memory of 2696	2500	rundll32.exe	30
PID 2500 wrote to memory of 2696	2500	rundll32.exe	30
PID 2500 wrote to memory of 2696	2500	rundll32.exe	30
PID 2500 wrote to memory of 2696	2500	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\AUDIODG.EXE-AB22E9A6.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\AUDIODG.EXE-AB22E9A6.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2500
- - 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\AUDIODG.EXE-AB22E9A6.pf"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2696

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
379b5157d6e92d306343ea49efbae8b6

SHA1
0ba4ece1b33dcf4642cb41a74ebe86a80a4b879f

SHA256
5b14e277bb91b43ec75183703f031d706f771d115e490bdd0de27322392f94f5

SHA512
49a3c3c07d28189b111887c16480b96866948bc1a762eb95a922efcbae0f806980533b4e8eb76ad19d424d4ccaeb40cc1ce2e9d4edfb993b1f9b0cc5291f2292

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