eb3a0dde867994262fd22df0f5011cda8f7152a43da08b9a52c25d7f24bc24c2

Analysis

max time kernel
155s
max time network
148s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
11/10/2023, 05:26

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General

Target

exe.win-amd64-3.11/lib/Cryptodome/Cipher/_mode_cfb.pyc
Size

10KB
MD5

42c117d583146e0e7bf236616bf69a29
SHA1

b35d32cc33586d4e473c55d37c6abacfbfebda1f
SHA256

1e79692da8b0ea34acd22340e768d300172d95762832dc1b201d9bc1f79b3abb
SHA512

e62576a168bcdcb65014406be1cd883b4059e837662ad944ce577b1dc38bed330b2fd3ee7d0386a001e4fdecee335ec511b2acd8f6c471ac946761f81d5c07c9
SSDEEP

192:Nw3jDCxEZzorrU4B/NU4DfZZkZZZZqjbPpw:grZzoXTBFTDnjtw

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-1-5-21-86725733-3001458681-3405935542-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000_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-1-5-21-86725733-3001458681-3405935542-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000_CLASSES\pyc_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2528	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2212	2520	cmd.exe	31
PID 2520 wrote to memory of 2212	2520	cmd.exe	31
PID 2520 wrote to memory of 2212	2520	cmd.exe	31
PID 2212 wrote to memory of 2528	2212	rundll32.exe	32
PID 2212 wrote to memory of 2528	2212	rundll32.exe	32
PID 2212 wrote to memory of 2528	2212	rundll32.exe	32
PID 2212 wrote to memory of 2528	2212	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\exe.win-amd64-3.11\lib\Cryptodome\Cipher\_mode_cfb.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\exe.win-amd64-3.11\lib\Cryptodome\Cipher\_mode_cfb.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2212
- - 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\exe.win-amd64-3.11\lib\Cryptodome\Cipher\_mode_cfb.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2528

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
380cdee106291ed2a5cb65e8c324c851

SHA1
52c18b40e32d645db39197946ef54743d1f8e4db

SHA256
f7f408ab273b713222804413798fb0fffa01c23fb07309c60e4cd630b4ad4b01

SHA512
f98f898a1a5e5e1b14b41b9f24311bba9e27dca57758f3f6966a93ab903a5e3ef5010d92774cf75d44f24538f9e23ad0d932cdb8169b3d23d98a466b1d7a732a

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