9a4744a9ea6fa058995157b052e1d96b7063039ab3971ce5660fe9cc29bea7aa

Analysis

max time kernel
120s
max time network
131s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 17:44

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
icudtl.dat
Size 9.9MB
Sample240222-wa41jsdf79
SHA256 00f755664926fda5fda14b87af41097f6ea4b20154f90be65d73717580db26ee
MD5 c6ae43f9d596f3dd0d86fb3e62a5b5de
SHA1 198b3b4abc0f128398d25c66455c531a7af34a6d
SHA512 3c43e2dcdf037726a94319a147a8bc41a4c0fd66e6b18b3c7c95449912bf875382dde5ec0525dcad6a52e8820b0859caf8fa73cb287283334ec8d06eb3227ec4
SSDEEP 196608:tGzwSv9AAQu1+liXUxCGZHa93Whlw6ZzbSEQF:t3KlQusliXUxCGZHa93Whlw6ZzbSEQF
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-778096762-2241304387-192235952-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\.dat\ = "dat_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\dat_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\dat_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\dat_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\dat_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\dat_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\.dat	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\dat_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2728	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2728	AcroRd32.exe
2728	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 2532	3016	cmd.exe	29
PID 3016 wrote to memory of 2532	3016	cmd.exe	29
PID 3016 wrote to memory of 2532	3016	cmd.exe	29
PID 2532 wrote to memory of 2728	2532	rundll32.exe	30
PID 2532 wrote to memory of 2728	2532	rundll32.exe	30
PID 2532 wrote to memory of 2728	2532	rundll32.exe	30
PID 2532 wrote to memory of 2728	2532	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\icudtl.dat
1⤵
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\icudtl.dat
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2532
- - 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\icudtl.dat"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2728

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

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 a3c6231a506d0edfa42808a25c8260f8c3295fe19d585f6d441ad7047d824e08
MD5 d7c211123735aa698fdb80875994bdb6
SHA1 f467ce5217959d26267389b348709333424e34e3
SHA512 0f8070698ab121b707a991bc6c547ba57503c4a63643a0891f8af9135688aacb0dbacc734afb622b5878e19e032d09e70e2368ca07b9daa9848b7937cfed000a
MD5 SHA1 SHA512

Submit Download