3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af

Analysis

max time kernel
143s
max time network
174s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
28-11-2022 06:20

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General

Target

3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe
Size

48KB
MD5

f8318872129839d320bae5509917330f
SHA1

2e70aec4c8fdcfe613fb7f7bf71dff62ebef13b8
SHA256

3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af
SHA512

089b3aca04c1f3e41a2d2956f496dc4c247557a3e956b81c310733257848c2530cf4c059f670e8f7f213db0767f063f4e70f5f654f5f90671fb536d7f48c10fc
SSDEEP

768:BZ6DFma8K6HC4kj5Jp9jrQOV/W4jcAFVLymH6SKd3j8oi4p6rSuc:+FSHHzgJL5V/Wec4OmaSs8M60

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1940	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\\7138449.dll"	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe

Deletes itself 1 IoCs

pid	Process
1764	cmd.exe

Loads dropped DLL 7 IoCs

pid	Process
1392	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe
1336	svchost.exe
1336	svchost.exe
1940	Smssvchost.exe
1940	Smssvchost.exe
1940	Smssvchost.exe
1940	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\7138449.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
756	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1392	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1392	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1392	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1392 wrote to memory of 1764	1392	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe	30
PID 1392 wrote to memory of 1764	1392	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe	30
PID 1392 wrote to memory of 1764	1392	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe	30
PID 1392 wrote to memory of 1764	1392	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe	30
PID 1392 wrote to memory of 1764	1392	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe	30
PID 1392 wrote to memory of 1764	1392	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe	30
PID 1392 wrote to memory of 1764	1392	3fb0bae3a799c46fa4c2b8f82f93562c83e3de6eceb92ca57e97a72d6c93d0af.exe	30
PID 1764 wrote to memory of 756	1764	cmd.exe	32
PID 1764 wrote to memory of 756	1764	cmd.exe	32
PID 1764 wrote to memory of 756	1764	cmd.exe	32
PID 1764 wrote to memory of 756	1764	cmd.exe	32
PID 1764 wrote to memory of 756	1764	cmd.exe	32
PID 1764 wrote to memory of 756	1764	cmd.exe	32
PID 1764 wrote to memory of 756	1764	cmd.exe	32
PID 1336 wrote to memory of 1940	1336	svchost.exe	33
PID 1336 wrote to memory of 1940	1336	svchost.exe	33
PID 1336 wrote to memory of 1940	1336	svchost.exe	33
PID 1336 wrote to memory of 1940	1336	svchost.exe	33

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
- 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:1392
- 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⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1764
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 1
    3⤵
    - Runs ping.exe
    PID:756

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Smssvchost"
1⤵
PID:1408

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:1336
- C:\Windows\SysWOW64\Smssvchost.exe
  C:\Windows\system32\Smssvchost.exe "c:\program files (x86)\google\7138449.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1940

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\Smssvchost.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

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

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
\??\c:\program files (x86)\google\7138449.dll

Filesize
26KB

MD5
772e95e8a13f110ce636b6bb1ea2aa53

SHA1
498a1facde5dfec1c0627b0e94034b42930b5b3e

SHA256
00ae8d7b8d10ec4d2f1794d4d7cab67e5222e11eb6a065e8d266d4ab41a86e3d

SHA512
f99b0630a1a49c22ce17819a9bb9a5c60a8b75f4b5616c0c33e8b52ef8f28e5967ff1453d1ae9ba0f6e4b89675bf2402f5f99a1c13beb7a527f0964732275c17

Download Submit
\Program Files (x86)\Google\7138449.dll

Filesize
26KB

MD5
772e95e8a13f110ce636b6bb1ea2aa53

SHA1
498a1facde5dfec1c0627b0e94034b42930b5b3e

SHA256
00ae8d7b8d10ec4d2f1794d4d7cab67e5222e11eb6a065e8d266d4ab41a86e3d

SHA512
f99b0630a1a49c22ce17819a9bb9a5c60a8b75f4b5616c0c33e8b52ef8f28e5967ff1453d1ae9ba0f6e4b89675bf2402f5f99a1c13beb7a527f0964732275c17

Download Submit
\Program Files (x86)\Google\7138449.dll

Filesize
26KB

MD5
772e95e8a13f110ce636b6bb1ea2aa53

SHA1
498a1facde5dfec1c0627b0e94034b42930b5b3e

SHA256
00ae8d7b8d10ec4d2f1794d4d7cab67e5222e11eb6a065e8d266d4ab41a86e3d

SHA512
f99b0630a1a49c22ce17819a9bb9a5c60a8b75f4b5616c0c33e8b52ef8f28e5967ff1453d1ae9ba0f6e4b89675bf2402f5f99a1c13beb7a527f0964732275c17

Download Submit
\Program Files (x86)\Google\7138449.dll

Filesize
26KB

MD5
772e95e8a13f110ce636b6bb1ea2aa53

SHA1
498a1facde5dfec1c0627b0e94034b42930b5b3e

SHA256
00ae8d7b8d10ec4d2f1794d4d7cab67e5222e11eb6a065e8d266d4ab41a86e3d

SHA512
f99b0630a1a49c22ce17819a9bb9a5c60a8b75f4b5616c0c33e8b52ef8f28e5967ff1453d1ae9ba0f6e4b89675bf2402f5f99a1c13beb7a527f0964732275c17

Download Submit
\Program Files (x86)\Google\7138449.dll

Filesize
26KB

MD5
772e95e8a13f110ce636b6bb1ea2aa53

SHA1
498a1facde5dfec1c0627b0e94034b42930b5b3e

SHA256
00ae8d7b8d10ec4d2f1794d4d7cab67e5222e11eb6a065e8d266d4ab41a86e3d

SHA512
f99b0630a1a49c22ce17819a9bb9a5c60a8b75f4b5616c0c33e8b52ef8f28e5967ff1453d1ae9ba0f6e4b89675bf2402f5f99a1c13beb7a527f0964732275c17

Download Submit
\Program Files (x86)\Google\7138449.dll

Filesize
26KB

MD5
772e95e8a13f110ce636b6bb1ea2aa53

SHA1
498a1facde5dfec1c0627b0e94034b42930b5b3e

SHA256
00ae8d7b8d10ec4d2f1794d4d7cab67e5222e11eb6a065e8d266d4ab41a86e3d

SHA512
f99b0630a1a49c22ce17819a9bb9a5c60a8b75f4b5616c0c33e8b52ef8f28e5967ff1453d1ae9ba0f6e4b89675bf2402f5f99a1c13beb7a527f0964732275c17

Download Submit
\Program Files (x86)\Google\7138449.dll

Filesize
26KB

MD5
772e95e8a13f110ce636b6bb1ea2aa53

SHA1
498a1facde5dfec1c0627b0e94034b42930b5b3e

SHA256
00ae8d7b8d10ec4d2f1794d4d7cab67e5222e11eb6a065e8d266d4ab41a86e3d

SHA512
f99b0630a1a49c22ce17819a9bb9a5c60a8b75f4b5616c0c33e8b52ef8f28e5967ff1453d1ae9ba0f6e4b89675bf2402f5f99a1c13beb7a527f0964732275c17

Download Submit
\Windows\SysWOW64\Smssvchost.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/1392-54-0x0000000075BE1000-0x0000000075BE3000-memory.dmp

Filesize
8KB

Download