476efe162f8ca4f0c7ad83f3602ac1ee661f97312fd00d71d765469425dbc60c

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
08-08-2023 22:09

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
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_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-1-5-21-377084978-2088738870-2818360375-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\pyc_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2748 AcroRd32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

2748 AcroRd32.exe
2748 AcroRd32.exe
2748 AcroRd32.exe

pid	process
2748	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2816 wrote to memory of 2964	2816	cmd.exe	rundll32.exe
PID 2816 wrote to memory of 2964	2816	cmd.exe	rundll32.exe
PID 2816 wrote to memory of 2964	2816	cmd.exe	rundll32.exe
PID 2964 wrote to memory of 2748	2964	rundll32.exe	AcroRd32.exe
PID 2964 wrote to memory of 2748	2964	rundll32.exe	AcroRd32.exe
PID 2964 wrote to memory of 2748	2964	rundll32.exe	AcroRd32.exe
PID 2964 wrote to memory of 2748	2964	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:2816
- 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:2964
- - 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:2748

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
f64f6515cc80a63666c8e03acd552da0

SHA1
32aab9b07695f97b3bcd6ce9322d5cef0de6c96f

SHA256
c8d0001b9520479dafd07fb347df219f0525fefc784fdd18ae3e0e093515e713

SHA512
e880a335c3230eee96ac48f53ceca49da85eba8807e2f3f70a3215de38225b8030b428b2ad59b1502be30883cf9e3079b1e3302420b2e71ea879ce0e0bf950d1

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