3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af

General

Target

3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe
Size

48KB
MD5

f8318872129839d320bae5509917330f
SHA1

2e70aec4c8fdcfe613fb7f7bf71dff62ebef13b8
SHA256

3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af
SHA512

089b3aca04c1f3e41a2d2956f496dc4c247557a3e956b81c310733257848c2530cf4c059f670e8f7f213db0767f063f4e70f5f654f5f90671fb536d7f48c10fc
SSDEEP

768:BZ6DFma8K6HC4kj5Jp9jrQOV/W4jcAFVLymH6SKd3j8oi4p6rSuc:+FSHHzgJL5V/Wec4OmaSs8M60

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
5076	Smssvchost.exe

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Smssvchost\Parameters\ServiceDll = "C:\\Program Files (x86)\\Google\\240544578.dll"	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe

Loads dropped DLL 3 IoCs

pid	Process
5040	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe
1812	svchost.exe
5076	Smssvchost.exe

Creates a Windows Service
persistence

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Smssvchost.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Smssvchost.exe	svchost.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Google\240544578.dll	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe

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

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5012	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5040	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe
5040	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	5040	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5040	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 5040 wrote to memory of 3528	5040	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe	82
PID 5040 wrote to memory of 3528	5040	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe	82
PID 5040 wrote to memory of 3528	5040	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe	82
PID 3528 wrote to memory of 5012	3528	cmd.exe	84
PID 3528 wrote to memory of 5012	3528	cmd.exe	84
PID 3528 wrote to memory of 5012	3528	cmd.exe	84
PID 1812 wrote to memory of 5076	1812	svchost.exe	85
PID 1812 wrote to memory of 5076	1812	svchost.exe	85
PID 1812 wrote to memory of 5076	1812	svchost.exe	85

C:\Users\Admin\AppData\Local\Temp\3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe
"C:\Users\Admin\AppData\Local\Temp\3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe"
1⤵
- Sets DLL path for service in the registry
- Checks computer location settings
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5040
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 1 && del /f/q "C:\Users\Admin\AppData\Local\Temp\3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3528
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 1
    3⤵
    - Runs ping.exe
    PID:5012

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Smssvchost"
1⤵
PID:4948

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Smssvchost"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1812
- C:\Windows\SysWOW64\Smssvchost.exe
  C:\Windows\system32\Smssvchost.exe "c:\program files (x86)\google\240544578.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:5076

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Google\240544578.dll

Filesize
26KB

MD5
772e95e8a13f110ce636b6bb1ea2aa53

SHA1
498a1facde5dfec1c0627b0e94034b42930b5b3e

SHA256
00ae8d7b8d10ec4d2f1794d4d7cab67e5222e11eb6a065e8d266d4ab41a86e3d

SHA512
f99b0630a1a49c22ce17819a9bb9a5c60a8b75f4b5616c0c33e8b52ef8f28e5967ff1453d1ae9ba0f6e4b89675bf2402f5f99a1c13beb7a527f0964732275c17

Download Submit
C:\Program Files (x86)\Google\240544578.dll

Filesize
26KB

MD5
772e95e8a13f110ce636b6bb1ea2aa53

SHA1
498a1facde5dfec1c0627b0e94034b42930b5b3e

SHA256
00ae8d7b8d10ec4d2f1794d4d7cab67e5222e11eb6a065e8d266d4ab41a86e3d

SHA512
f99b0630a1a49c22ce17819a9bb9a5c60a8b75f4b5616c0c33e8b52ef8f28e5967ff1453d1ae9ba0f6e4b89675bf2402f5f99a1c13beb7a527f0964732275c17

Download Submit
C:\Program Files (x86)\Google\240544578.dll

Filesize
26KB

MD5
772e95e8a13f110ce636b6bb1ea2aa53

SHA1
498a1facde5dfec1c0627b0e94034b42930b5b3e

SHA256
00ae8d7b8d10ec4d2f1794d4d7cab67e5222e11eb6a065e8d266d4ab41a86e3d

SHA512
f99b0630a1a49c22ce17819a9bb9a5c60a8b75f4b5616c0c33e8b52ef8f28e5967ff1453d1ae9ba0f6e4b89675bf2402f5f99a1c13beb7a527f0964732275c17

Download Submit
C:\Windows\SysWOW64\Smssvchost.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
C:\Windows\SysWOW64\Smssvchost.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
\??\c:\program files (x86)\google\240544578.dll

Filesize
26KB

MD5
772e95e8a13f110ce636b6bb1ea2aa53

SHA1
498a1facde5dfec1c0627b0e94034b42930b5b3e

SHA256
00ae8d7b8d10ec4d2f1794d4d7cab67e5222e11eb6a065e8d266d4ab41a86e3d

SHA512
f99b0630a1a49c22ce17819a9bb9a5c60a8b75f4b5616c0c33e8b52ef8f28e5967ff1453d1ae9ba0f6e4b89675bf2402f5f99a1c13beb7a527f0964732275c17

Download Submit

Analysis

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