c6021e59df4ef15a6590e4cc4b5d2a75c7c881397f154163849f969ebfbf8933

General

Target

reconstructed_core/2022-06-04/core/license.dat
Size

334KB
MD5

c3db0f946699412e8f3a2775516116a2
SHA1

a01448e2760dcb2fbed70a634baaae559d3b6de0
SHA256

dbe9743c9c57247cb9275a23a84909dd78aca59f584df62197bde07cb87bd1ed
SHA512

50b2e9b3446463f4b02980587b3f4bd716f5b018e26085f10d38c42fd0f6e07891438d13ccc5b36f38ab9c7f1ea874814ed266f8551a970c8ca3eb73ac6b4950

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-1-5-21-790309383-526510583-3802439154-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\.dat	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\dat_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_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-1-5-21-790309383-526510583-3802439154-1000_CLASSES\dat_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\dat_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\.dat\ = "dat_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\dat_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\dat_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

1864 AcroRd32.exe
1864 AcroRd32.exe
1864 AcroRd32.exe

pid	process
1864	AcroRd32.exe
1864	AcroRd32.exe
1864	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1892 wrote to memory of 888	1892	cmd.exe	rundll32.exe
PID 1892 wrote to memory of 888	1892	cmd.exe	rundll32.exe
PID 1892 wrote to memory of 888	1892	cmd.exe	rundll32.exe
PID 888 wrote to memory of 1864	888	rundll32.exe	AcroRd32.exe
PID 888 wrote to memory of 1864	888	rundll32.exe	AcroRd32.exe
PID 888 wrote to memory of 1864	888	rundll32.exe	AcroRd32.exe
PID 888 wrote to memory of 1864	888	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\reconstructed_core\2022-06-04\core\license.dat
1⤵
- Suspicious use of WriteProcessMemory
PID:1892

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\reconstructed_core\2022-06-04\core\license.dat
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:888

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\reconstructed_core\2022-06-04\core\license.dat"
3⤵
- Suspicious use of SetWindowsHookEx
PID:1864

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/888-76-0x0000000000000000-mapping.dmp

Download
memory/1864-81-0x0000000000000000-mapping.dmp

Download
memory/1864-82-0x00000000756A1000-0x00000000756A3000-memory.dmp

Filesize
8KB

Download
memory/1892-54-0x000007FEFBF31000-0x000007FEFBF33000-memory.dmp

Filesize
8KB

Download

Analysis

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