4d5e9a81aaec53df6bcade23ae5638527224affdfa165c72fe16299131bb1450

Analysis

max time kernel
102s
max time network
18s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
04-10-2024 11:36

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General

Target

SilverBullet.1.4.1.Pro/SilverBullet 1.4.1 [Pro]/lib/email/base64mime.py
Size

3KB
MD5

3a28fef246150134647b99b701bc07e7
SHA1

aea18232bf2b32e41d3cc9118203541cf888bd04
SHA256

4b5f3c6f9960cd986aae23ecd3efccf5dcc8644f7707cc4754e2e8469e0ede6c
SHA512

c8699f8ba9c58bc8491e2188dd50cec1e01cb6dbf09e8c1c50d5776b67c7b4ef99146e168133e9a6082c0a8ca477c7a049e30fc65c2ad263cb19ae2306a3ca19

Score

3^/10

discovery

Malware Config

Signatures

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2988	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2988	AcroRd32.exe
2988	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 2924	1628	cmd.exe	31
PID 1628 wrote to memory of 2924	1628	cmd.exe	31
PID 1628 wrote to memory of 2924	1628	cmd.exe	31
PID 2924 wrote to memory of 2988	2924	rundll32.exe	32
PID 2924 wrote to memory of 2988	2924	rundll32.exe	32
PID 2924 wrote to memory of 2988	2924	rundll32.exe	32
PID 2924 wrote to memory of 2988	2924	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\SilverBullet.1.4.1.Pro\SilverBullet 1.4.1 [Pro]\lib\email\base64mime.py"
1⤵
- Suspicious use of WriteProcessMemory
PID:1628
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\SilverBullet.1.4.1.Pro\SilverBullet 1.4.1 [Pro]\lib\email\base64mime.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2924
- - 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\SilverBullet.1.4.1.Pro\SilverBullet 1.4.1 [Pro]\lib\email\base64mime.py"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2988

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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
9f8eeb0a513bf92e162b97f69a05c104

SHA1
56ab88021bbff91abe205ba3fd79d6fbc062ab66

SHA256
45e90caacb5844105b2d7ed4cda56ff42d0929e45af2f683c0dc61e609165045

SHA512
5d154a92ed76f7ba162a9a001ece1b190e173728a58a89201c93ea7b387285b189bab538f5c887eec4451a4dd3269ed8c60bee4b4262f56e7d16929cbb6eaabf

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