a617db081ad3b096a3c3255b06fb0b2eec1dfa570b06792be575f38c29199e90

Analysis

max time kernel
150s
max time network
121s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
11-10-2023 10:08

Target

UserDict.pyc
Size

11KB
MD5

efcbe1f3ba66174c7498b9d02b74c84c
SHA1

dbe94d3516b2b179124dbb7db5fa6241c3e6045c
SHA256

94dd9035bc81842df7e50550da82db7bcf3d2786387c34bca660e0836d67e9b3
SHA512

b3133caccd23b2598a10e38d08b5338426b2bd4488f984841535dd8802054619690b7763e1c38c5a61e9de1f7d15543fb0da6d91672256649022f3aa858d510d
SSDEEP

192:rhktDonbVYqbaighlUFLynIxNaHH28fbKHO0uo9DIKJq70KZEJ4blivYbi5+SH5P:3nbOqbaiAqFLynIxNanBfOO0uoaKJq7G

Score

3^/10

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2760 AcroRd32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

2760 AcroRd32.exe
2760 AcroRd32.exe
2760 AcroRd32.exe

pid	process
2760	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2156 wrote to memory of 2968	2156	cmd.exe	rundll32.exe
PID 2156 wrote to memory of 2968	2156	cmd.exe	rundll32.exe
PID 2156 wrote to memory of 2968	2156	cmd.exe	rundll32.exe
PID 2968 wrote to memory of 2760	2968	rundll32.exe	AcroRd32.exe
PID 2968 wrote to memory of 2760	2968	rundll32.exe	AcroRd32.exe
PID 2968 wrote to memory of 2760	2968	rundll32.exe	AcroRd32.exe
PID 2968 wrote to memory of 2760	2968	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\UserDict.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\UserDict.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2968
- - 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\UserDict.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2760

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
368afc8eea5d42eafcf460656794b410

SHA1
2aa28bcae09883ff8922d014b780c3e60d88824f

SHA256
e442afa5667782adfb9732c9c2071c502737a3c13e3d37b5a7aa776340ba00b9

SHA512
0d219241af6da3e62ccce6e756de540f38c0edae9748e2698369c926533e18163e963419579cba8108172d1c3de9081de247921cf7a73f2d738842476ae809e0

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