40f7c20cde14d5158e027a6c4adbc0cd1fcbf1d627a4d25cb09bdaafab3d103a

Resubmissions

20-02-2024 20:52

240220-zntzaafd27 10

20-02-2024 20:43

240220-zhst2afc62 10

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20-02-2024 20:43

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General

Target

main.pyc
Size

7KB
MD5

b33e789919a3801c201fb2c17bd744a9
SHA1

8365695238610c5ba2f03290b06ddb9c5d33b85a
SHA256

9da7fe9380f22e844796634d452cbf79eeeda19362effece2c5a83dbb7654bf9
SHA512

fc331c7745f68d15b69a90e04f777ef6b28de19407c756363b89eae81e0de9c1b77bbcfe009f38ebad68fffec6f99257a6f99025388a101aaa1138d9d05a1c3e
SSDEEP

192:w7ITEATD86MSWdXwnB69aF0GTeJhwXgGMdwnwGnw:n7HWun09H2ZPwGw

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-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_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-1-5-21-3818056530-936619650-3554021955-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pyc_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2856	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2856	AcroRd32.exe
2856	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 2720	2324	cmd.exe	29
PID 2324 wrote to memory of 2720	2324	cmd.exe	29
PID 2324 wrote to memory of 2720	2324	cmd.exe	29
PID 2720 wrote to memory of 2856	2720	rundll32.exe	30
PID 2720 wrote to memory of 2856	2720	rundll32.exe	30
PID 2720 wrote to memory of 2856	2720	rundll32.exe	30
PID 2720 wrote to memory of 2856	2720	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\main.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\main.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2720
- - 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\main.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2856

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
58001584d0de91f1d0bacfb7027f368b

SHA1
dde0034021644ddea25c4c8291526a6a3fee770d

SHA256
3011efa67a8fc3f85d6d35bdf001197a377274675aa9089ab269d0882dd2d912

SHA512
279ace657d85550cae0b2c202b7fa59c3a59e5acaad3e9b86ef4bb4f1f2c97dcdb437d07d6ce0f84d16d2e177816b65bc11634cf5321702af88c20cf40410048

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