9802a1e8fb425ac3a7c0a7fca5a17cfcb7f3f5f0962deb29e3982f0bece95e26

Resubmissions

22-02-2022 06:25

220222-g6sj3aefan 10

20-01-2022 19:00

220120-xnztesbbg7 10

Analysis

max time kernel
152s
max time network
128s
platform
windows7_x64
resource
win7-en-20211208
submitted
20-01-2022 19:00

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General

Target

9802a1e8fb425ac3a7c0a7fca5a17cfcb7f3f5f0962deb29e3982f0bece95e26.bin
Size

1.8MB
MD5

769fdda466dcd97eb8a7a99c958d460e
SHA1

5ac485d60fe2c096b10cda2624588427928e3f0d
SHA256

9802a1e8fb425ac3a7c0a7fca5a17cfcb7f3f5f0962deb29e3982f0bece95e26
SHA512

d0a514d81b0453f532e56875d912f1297d0e8bc81ac7e29f402ad0173c203aca135d9712d0e38e301f6d72737a7c5c06b364c9bd76f0e2f422da680f5cb04de1

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 10 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\bin_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\bin_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_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-1-5-21-3846991908-3261386348-1409841751-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\bin_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\.bin\ = "bin_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\bin_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\.bin	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\bin_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

1484 AcroRd32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

1484 AcroRd32.exe
1484 AcroRd32.exe
1484 AcroRd32.exe

pid	process
1484	AcroRd32.exe

pid	process
1484	AcroRd32.exe
1484	AcroRd32.exe
1484	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 944 wrote to memory of 688	944	cmd.exe	rundll32.exe
PID 944 wrote to memory of 688	944	cmd.exe	rundll32.exe
PID 944 wrote to memory of 688	944	cmd.exe	rundll32.exe
PID 688 wrote to memory of 1484	688	rundll32.exe	AcroRd32.exe
PID 688 wrote to memory of 1484	688	rundll32.exe	AcroRd32.exe
PID 688 wrote to memory of 1484	688	rundll32.exe	AcroRd32.exe
PID 688 wrote to memory of 1484	688	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\9802a1e8fb425ac3a7c0a7fca5a17cfcb7f3f5f0962deb29e3982f0bece95e26.bin
1⤵
- Suspicious use of WriteProcessMemory
PID:944

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\9802a1e8fb425ac3a7c0a7fca5a17cfcb7f3f5f0962deb29e3982f0bece95e26.bin
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:688

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\9802a1e8fb425ac3a7c0a7fca5a17cfcb7f3f5f0962deb29e3982f0bece95e26.bin"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1484

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/944-54-0x000007FEFBE11000-0x000007FEFBE13000-memory.dmp

Filesize
8KB

Download
memory/1484-56-0x0000000075431000-0x0000000075433000-memory.dmp

Filesize
8KB

Download