cc46b1e6b1cd0211ecb6c1fb4a4fa6a6958a0af9e4a2edfdd4632437684cdfbc

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
22/12/2023, 15:39

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

flashrec-1.1.2-20090909/assets/raw/writecommands.sh
Size

299B
MD5

0ed924c07fa3036ccfe2e53741c746c3
SHA1

7dce8dad0891eead2d5e1191efafa3a1018d22dc
SHA256

5650745fb4247c2597ea1ca5dca304fefd21dd9e705d67901d68dc51ad608b4b
SHA512

a86c9ba320a8570d3335cfd46135867da89b1df490722dbdcaa89b0f9c037a58b95dd17f883f77d913a7efb52e639ebb705fc6314255d0a2cf0b3e54fd2e749c

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\sh_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\sh_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\.sh\ = "sh_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\sh_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\sh_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\sh_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
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\sh_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\.sh	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2704	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2704	AcroRd32.exe
2704	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1428 wrote to memory of 2280	1428	cmd.exe	16
PID 1428 wrote to memory of 2280	1428	cmd.exe	16
PID 1428 wrote to memory of 2280	1428	cmd.exe	16
PID 2280 wrote to memory of 2704	2280	rundll32.exe	30
PID 2280 wrote to memory of 2704	2280	rundll32.exe	30
PID 2280 wrote to memory of 2704	2280	rundll32.exe	30
PID 2280 wrote to memory of 2704	2280	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\flashrec-1.1.2-20090909\assets\raw\writecommands.sh
1⤵
- Suspicious use of WriteProcessMemory
PID:1428
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\flashrec-1.1.2-20090909\assets\raw\writecommands.sh
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2280
- - 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\flashrec-1.1.2-20090909\assets\raw\writecommands.sh"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2704

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
f56810479ae1cb7dbe621be38f94390c

SHA1
a8ff09ae1045d6eb2c5650d59efe44a69e4554b8

SHA256
8cf8a0c88d4650c30870843103e8c61346b635ec67d582f66dfa124ca97ae59d

SHA512
e7ad984ff4b397c87e5695da9aba3dc41b73a3e5640f22aab54423b353ae44d04c79d8456edcb009b3a754e15aea1da7e24108ac7beeaf799affc55ef78ad7f1

Download Submit