e5b98f79e84d434b44fe4dab6b0e7823772d32744249a8fb9fb2288d0b354b21

Resubmissions

07/07/2024, 12:33 UTC

240707-prjydasclk 3

Analysis

max time kernel
121s
max time network
129s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
07/07/2024, 12:33 UTC

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General

Target

rom1.bin
Size

195KB
MD5

44552702b05697a14ccbe2ca22ee7139
SHA1

47d2ec4b342649e4c391043ab915d4435f9d180d
SHA256

41de2047af8382988bfd568035ff26eec5f1cabc3efe773680546aa00a82857d
SHA512

28b02c3a83f6107aa277fd86da8e8bb8d7273ec76aab9090dbc2ebb7ce3d1ea2ae9d41973894cc904b0dadcdaf9d8f1d8ae4e49e506e2d46890184075b441d79
SSDEEP

3072:6MP0Tk3xqZ7Ngv9DG+1iu/APblMy81qEjRGELgua:6K0dZ7Ngv9DGoiCqHAa

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
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\bin_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\.bin	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\.bin\ = "bin_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\bin_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\bin_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\bin_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\bin_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\bin_auto_file	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2216	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2216	AcroRd32.exe
2216	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 2792	3064	cmd.exe	31
PID 3064 wrote to memory of 2792	3064	cmd.exe	31
PID 3064 wrote to memory of 2792	3064	cmd.exe	31
PID 2792 wrote to memory of 2216	2792	rundll32.exe	33
PID 2792 wrote to memory of 2216	2792	rundll32.exe	33
PID 2792 wrote to memory of 2216	2792	rundll32.exe	33
PID 2792 wrote to memory of 2216	2792	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\rom1.bin
1⤵
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\rom1.bin
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2792
- - 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\rom1.bin"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2216

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
4f05a99a015a2134554faabab57c6bf9

SHA1
680e6aae6a6fc721d4e1d45adf71aa63a3d8078d

SHA256
0dbcadd7e5176a4ba09d59a4f0041e20a2b00fe6639bc496a67f5e4c6e4452c9

SHA512
fead1b796ad1c2fc5876d5dd68849eeb2ad5a240da94a5863b893743f5ee354da5963641f9e0637520889af4932a8d4b3d1de77d44481d3122733fa99c226969

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