4bb31847846180bf78033b5eb7761b874b114f6dd086862472915be761fc042a

Analysis

max time kernel
91s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
09-06-2022 14:12

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General

Target

7zS8A52FD1B/62a1ea2b65292_c4804f5141.exe
Size

288KB
MD5

f902561ae91aad8b234cddf38401cad1
SHA1

cc3e9aadce50c820f147b194ba558b2abf25c16b
SHA256

6bdf30e72d6f74a83a5ce0a84202aab030db0ffd61850fe9154eceaabc282e65
SHA512

c9170b3f855f2721c3f713776b65da69ac51ddf9109fa4a2bef18174ed96cbbb7c9faab5e57f44347a85d8a6b7d8e5958a23f4e19db5209fda4ea4860f5abd30

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

62a1ea2b65292_c4804f5141.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	62a1ea2b65292_c4804f5141.exe

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

System Information Discovery
T1082

Program crash 7 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
3412	2388	WerFault.exe	62a1ea2b65292_c4804f5141.exe
4596	2388	WerFault.exe	62a1ea2b65292_c4804f5141.exe
4824	2388	WerFault.exe	62a1ea2b65292_c4804f5141.exe
4268	2388	WerFault.exe	62a1ea2b65292_c4804f5141.exe
2064	2388	WerFault.exe	62a1ea2b65292_c4804f5141.exe
2052	2388	WerFault.exe	62a1ea2b65292_c4804f5141.exe
4580	2388	WerFault.exe	62a1ea2b65292_c4804f5141.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4564 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4564 taskkill.exe

pid	process
4564	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4564	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

62a1ea2b65292_c4804f5141.execmd.exe

description	pid	process	target process
PID 2388 wrote to memory of 3744	2388	62a1ea2b65292_c4804f5141.exe	cmd.exe
PID 2388 wrote to memory of 3744	2388	62a1ea2b65292_c4804f5141.exe	cmd.exe
PID 2388 wrote to memory of 3744	2388	62a1ea2b65292_c4804f5141.exe	cmd.exe
PID 3744 wrote to memory of 4564	3744	cmd.exe	taskkill.exe
PID 3744 wrote to memory of 4564	3744	cmd.exe	taskkill.exe
PID 3744 wrote to memory of 4564	3744	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\7zS8A52FD1B\62a1ea2b65292_c4804f5141.exe
"C:\Users\Admin\AppData\Local\Temp\7zS8A52FD1B\62a1ea2b65292_c4804f5141.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2388 -s 736
2⤵
- Program crash
PID:3412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2388 -s 736
2⤵
- Program crash
PID:4596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2388 -s 900
2⤵
- Program crash
PID:4824

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2388 -s 916
2⤵
- Program crash
PID:4268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2388 -s 956
2⤵
- Program crash
PID:2064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2388 -s 976
2⤵
- Program crash
PID:2052

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "62a1ea2b65292_c4804f5141.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\7zS8A52FD1B\62a1ea2b65292_c4804f5141.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:3744

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "62a1ea2b65292_c4804f5141.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2388 -s 764
2⤵
- Program crash
PID:4580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 2388 -ip 2388
1⤵
PID:4168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2388 -ip 2388
1⤵
PID:5072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2388 -ip 2388
1⤵
PID:5108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2388 -ip 2388
1⤵
PID:912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2388 -ip 2388
1⤵
PID:4244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 2388 -ip 2388
1⤵
PID:868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 2388 -ip 2388
1⤵
PID:2640

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2388-130-0x0000000000B9D000-0x0000000000BC3000-memory.dmp

Filesize
152KB

Download
memory/2388-131-0x0000000000AB0000-0x0000000000AEF000-memory.dmp

Filesize
252KB

Download
memory/2388-132-0x0000000000400000-0x0000000000912000-memory.dmp

Filesize
5.1MB

Download
memory/2388-133-0x0000000000B9D000-0x0000000000BC3000-memory.dmp

Filesize
152KB

Download
memory/2388-134-0x0000000000AB0000-0x0000000000AEF000-memory.dmp

Filesize
252KB

Download
memory/2388-137-0x0000000000B9D000-0x0000000000BC3000-memory.dmp

Filesize
152KB

Download
memory/2388-138-0x0000000000400000-0x0000000000912000-memory.dmp

Filesize
5.1MB

Download
memory/3744-135-0x0000000000000000-mapping.dmp

Download
memory/4564-136-0x0000000000000000-mapping.dmp

Download