479f024e77b53300da8dd0e0d0243dca32af5c1aefaa2f254127bc59f2901d93

Analysis

max time kernel
121s
max time network
129s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
08-07-2024 11:24

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General

Target

icudtl.dat
Size

10.0MB
MD5

76bef9b8bb32e1e54fe1054c97b84a10
SHA1

05dfea2a3afeda799ab01bb7fbce628cacd596f4
SHA256

97b978a19edd4746e9a44d9a44bb4bc519e127a203c247837ec0922f573449e3
SHA512

7330df8129e7a0b7b3655498b2593321595ec29445ea193c8f473c593590f5701eb7125ff6e5cde970c54765f9565fa51c2c54af6e2127f582ab45efa7a3a0f6
SSDEEP

196608:p5zwSv9AAyse6liXUxCGZHa93Whlw6ZCXU0:pyKlysTliXUxCGZHa93Whlw6ZCX1

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

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000_CLASSES\.dat	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000_CLASSES\dat_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000_CLASSES\dat_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000_CLASSES\dat_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000_CLASSES\.dat\ = "dat_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000_CLASSES\dat_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000_CLASSES\dat_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000_CLASSES\dat_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2584 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2584 AcroRd32.exe
2584 AcroRd32.exe

pid	process
2584	AcroRd32.exe

pid	process
2584	AcroRd32.exe
2584	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2932 wrote to memory of 2264	2932	cmd.exe	rundll32.exe
PID 2932 wrote to memory of 2264	2932	cmd.exe	rundll32.exe
PID 2932 wrote to memory of 2264	2932	cmd.exe	rundll32.exe
PID 2264 wrote to memory of 2584	2264	rundll32.exe	AcroRd32.exe
PID 2264 wrote to memory of 2584	2264	rundll32.exe	AcroRd32.exe
PID 2264 wrote to memory of 2584	2264	rundll32.exe	AcroRd32.exe
PID 2264 wrote to memory of 2584	2264	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\icudtl.dat
1⤵
- Suspicious use of WriteProcessMemory
PID:2932

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:2264

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:2584

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
fdd3e984425e124b5dd07aab748164ac

SHA1
0ea6314d33c8df217d5fe8e34386c8c087d4c13a

SHA256
b4a3a4d1688915629b638dca386b481efba9d4414066838ec458b0f583812917

SHA512
751051edf660a8e595bc2e9e64b1cf15c6d05356195cfcf1b2f3bb81a2416d8db0b27f449bbe98d34c79391cc0a6d1f7d0472ffacf222c29231fc1b52cc63ee4

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