c3e19add215ebe3a323b3d15f54ac0e77514c1e474545bf033b98ae1eb1e5495

Analysis

max time kernel
359s
max time network
365s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
11/11/2023, 11:59

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General

Target

Downloads.7z
Size

15KB
MD5

2ad8ea6a0cebcffa65a25dc0fc82dd0c
SHA1

2af38bb6b32f01db4814ef634386b01b8268b581
SHA256

c3e19add215ebe3a323b3d15f54ac0e77514c1e474545bf033b98ae1eb1e5495
SHA512

15cd1e23a5b3dbf881bb03775d2a63f2e16c3234b22191de2d7a9e5da894f31afb0fe91c29895ef8404a2d72fd2ab7112a47e607c1f175f6f2c79395c5a91772
SSDEEP

384:9lq3Qfxd9/IYr15mKLpgCR646MZLhHntHq3FzwVMAzJ/:uM9dxUK9gn46Mx/Hfp/

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-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\.7z	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\.7z\ = "7z_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\7z_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\7z_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\7z_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\7z_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\7z_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\7z_auto_file	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2716	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2716	AcroRd32.exe
2716	AcroRd32.exe
2716	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2988	2124	cmd.exe	29
PID 2124 wrote to memory of 2988	2124	cmd.exe	29
PID 2124 wrote to memory of 2988	2124	cmd.exe	29
PID 2988 wrote to memory of 2716	2988	rundll32.exe	30
PID 2988 wrote to memory of 2716	2988	rundll32.exe	30
PID 2988 wrote to memory of 2716	2988	rundll32.exe	30
PID 2988 wrote to memory of 2716	2988	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Downloads.7z
1⤵
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Downloads.7z
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2988
- - 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\Downloads.7z"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2716

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
b51ed18e60e31623aa8a4d9638d081ed

SHA1
c7b828c906ebe432a40dc0709c3c14a587fcb995

SHA256
4ba734074b9b4dce6bd33d7aacf966f6baf31e3d234abe1d1cac8fcccc59064d

SHA512
70c39a46c16cc5f458dbe3ef62a0b825feb4fecca9d1e1d198955c478c7cea06d270a1404164131972c66a4e8f718d3737a5ca77bc94849ec261f0b28e77ee2e

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