metasploit | b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923

General

Target

b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
Size

66KB
MD5

723f9c7ccfb3de84ff4fd44f6be15637
SHA1

bd89e34502e0a002bd9a0273636789e9a0d07502
SHA256

b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923
SHA512

dce994555bbb19f3d38e21e9a2c0b966cf0106281ed67b2f294f5f898bc2a37b121c189010f60d42b8e42b1c8198dafb3119168eb2a7daeeb3f6dd5eff944d1e
SSDEEP

1536:5jtkNsAAQrNNVjABaqoiSUwiI4/WNPdDbzReJ2/:5j2SQr6BIbUwpvY2

Score

10^/10

metasploit backdoor persistence trojan upx

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Microsoft Driver Setup = "C:\\Windows\\system32\\fvrgmt.exe"	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe

Executes dropped EXE 2 IoCs

pid	Process
3956	fvrgmt.exe
1956	fvrgmt.exe

Modifies Installed Components in the registry 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Active Setup\Installed Components\{BJYM3OUK-7ARQ-WY6G-4SJK-V24PYUUUQ4AP}\StubPath = "\\LGDjl.exe"	fvrgmt.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{BJYM3OUK-7ARQ-WY6G-4SJK-V24PYUUUQ4AP}	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{BJYM3OUK-7ARQ-WY6G-4SJK-V24PYUUUQ4AP}\StubPath = "\\LGDjl.exe"	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Active Setup\Installed Components\{BJYM3OUK-7ARQ-WY6G-4SJK-V24PYUUUQ4AP}	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Active Setup\Installed Components\{BJYM3OUK-7ARQ-WY6G-4SJK-V24PYUUUQ4AP}\StubPath = "\\LGDjl.exe"	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{BJYM3OUK-7ARQ-WY6G-4SJK-V24PYUUUQ4AP}	fvrgmt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{BJYM3OUK-7ARQ-WY6G-4SJK-V24PYUUUQ4AP}\StubPath = "\\LGDjl.exe"	fvrgmt.exe
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Active Setup\Installed Components\{BJYM3OUK-7ARQ-WY6G-4SJK-V24PYUUUQ4AP}	fvrgmt.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/404-132-0x0000000000400000-0x0000000000433000-memory.dmp	upx
behavioral2/files/0x0006000000022dd9-141.dat	upx
behavioral2/files/0x0006000000022dd9-142.dat	upx
behavioral2/memory/3956-146-0x0000000000400000-0x0000000000433000-memory.dmp	upx
behavioral2/files/0x0006000000022dd9-149.dat	upx
behavioral2/memory/3956-155-0x0000000000400000-0x0000000000433000-memory.dmp	upx
behavioral2/files/0x0006000000022ddd-158.dat	upx

Checks computer location settings 2 TTPs 2 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-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	fvrgmt.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe

Adds Run key to start application 2 TTPs 10 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Driver Setup = "C:\\Windows\\system32\\fvrgmt.exe"	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\heBwGQl = "\\LGDjl.exe"	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ybaS886PuG6WQ = "\\LGDjl.exe"	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	fvrgmt.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Run	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\heBwGQl = "\\LGDjl.exe"	fvrgmt.exe
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Run	fvrgmt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ybaS886PuG6WQ = "\\LGDjl.exe"	fvrgmt.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\fvrgmt.exe	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
File opened for modification	C:\Windows\SysWOW64\fvrgmt.exe	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
File opened for modification	C:\Windows\SysWOW64\fvrgmt.exe	fvrgmt.exe
File created	C:\Windows\SysWOW64\fvrgmt.exe	fvrgmt.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 404 set thread context of 2564	404	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe	80
PID 3956 set thread context of 1956	3956	fvrgmt.exe	83

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
1956	fvrgmt.exe
1956	fvrgmt.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
Token: SeDebugPrivilege	1956	fvrgmt.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
404	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
3956	fvrgmt.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 404 wrote to memory of 2564	404	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe	80
PID 404 wrote to memory of 2564	404	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe	80
PID 404 wrote to memory of 2564	404	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe	80
PID 404 wrote to memory of 2564	404	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe	80
PID 404 wrote to memory of 2564	404	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe	80
PID 404 wrote to memory of 2564	404	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe	80
PID 404 wrote to memory of 2564	404	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe	80
PID 404 wrote to memory of 2564	404	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe	80
PID 2564 wrote to memory of 3956	2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe	81
PID 2564 wrote to memory of 3956	2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe	81
PID 2564 wrote to memory of 3956	2564	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe	81
PID 404 wrote to memory of 2028	404	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe	82
PID 404 wrote to memory of 2028	404	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe	82
PID 404 wrote to memory of 2028	404	b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe	82
PID 3956 wrote to memory of 1956	3956	fvrgmt.exe	83
PID 3956 wrote to memory of 1956	3956	fvrgmt.exe	83
PID 3956 wrote to memory of 1956	3956	fvrgmt.exe	83
PID 3956 wrote to memory of 1956	3956	fvrgmt.exe	83
PID 3956 wrote to memory of 1956	3956	fvrgmt.exe	83
PID 3956 wrote to memory of 1956	3956	fvrgmt.exe	83
PID 3956 wrote to memory of 1956	3956	fvrgmt.exe	83
PID 3956 wrote to memory of 1956	3956	fvrgmt.exe	83
PID 3956 wrote to memory of 1360	3956	fvrgmt.exe	85
PID 3956 wrote to memory of 1360	3956	fvrgmt.exe	85
PID 3956 wrote to memory of 1360	3956	fvrgmt.exe	85

C:\Users\Admin\AppData\Local\Temp\b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
"C:\Users\Admin\AppData\Local\Temp\b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe"
1⤵
- Modifies Installed Components in the registry
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:404
- C:\Users\Admin\AppData\Local\Temp\b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe
  "C:\Users\Admin\AppData\Local\Temp\b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923.exe"
  2⤵
  - Adds policy Run key to start application
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2564
- - C:\Windows\SysWOW64\fvrgmt.exe
    "C:\Windows\system32\fvrgmt.exe"
    3⤵
    - Executes dropped EXE
    - Modifies Installed Components in the registry
    - Checks computer location settings
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3956
  - - C:\Windows\SysWOW64\fvrgmt.exe
      "C:\Windows\SysWOW64\fvrgmt.exe"
      4⤵
      Executes dropped EXE
      Drops file in System32 directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1956
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\M7CUEXgwIIKYW.bat" "
      4⤵
      PID:1360
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\M7CUEXgwIIKYW.bat" "
  2⤵
  PID:2028

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

3

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\LGDjl.exe

Filesize
66KB

MD5
723f9c7ccfb3de84ff4fd44f6be15637

SHA1
bd89e34502e0a002bd9a0273636789e9a0d07502

SHA256
b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923

SHA512
dce994555bbb19f3d38e21e9a2c0b966cf0106281ed67b2f294f5f898bc2a37b121c189010f60d42b8e42b1c8198dafb3119168eb2a7daeeb3f6dd5eff944d1e

Download Submit
C:\Users\Admin\AppData\Local\Temp\M7CUEXgwIIKYW.bat

Filesize
216B

MD5
ddbfe06b21646828b249e956e044ddb0

SHA1
f74c02d51ccec3df762343c82ff7f5f5958fe219

SHA256
af11c648aa4dcd9c759c746ccb5c766badc9bab10e8f13dbb70af45c84a18cb4

SHA512
a16377d082c26e475fd21e11d0056e128d8d12c99445a4f108af20880e0da5fc90f6fcf3416c5366e012df8e69b45eea868123eacad979bb3b222e9f44863a0a

Download Submit
C:\Users\Admin\AppData\Local\Temp\M7CUEXgwIIKYW.bat

Filesize
216B

MD5
ddbfe06b21646828b249e956e044ddb0

SHA1
f74c02d51ccec3df762343c82ff7f5f5958fe219

SHA256
af11c648aa4dcd9c759c746ccb5c766badc9bab10e8f13dbb70af45c84a18cb4

SHA512
a16377d082c26e475fd21e11d0056e128d8d12c99445a4f108af20880e0da5fc90f6fcf3416c5366e012df8e69b45eea868123eacad979bb3b222e9f44863a0a

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

Filesize
66KB

MD5
723f9c7ccfb3de84ff4fd44f6be15637

SHA1
bd89e34502e0a002bd9a0273636789e9a0d07502

SHA256
b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923

SHA512
dce994555bbb19f3d38e21e9a2c0b966cf0106281ed67b2f294f5f898bc2a37b121c189010f60d42b8e42b1c8198dafb3119168eb2a7daeeb3f6dd5eff944d1e

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

Filesize
66KB

MD5
723f9c7ccfb3de84ff4fd44f6be15637

SHA1
bd89e34502e0a002bd9a0273636789e9a0d07502

SHA256
b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923

SHA512
dce994555bbb19f3d38e21e9a2c0b966cf0106281ed67b2f294f5f898bc2a37b121c189010f60d42b8e42b1c8198dafb3119168eb2a7daeeb3f6dd5eff944d1e

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

Filesize
66KB

MD5
723f9c7ccfb3de84ff4fd44f6be15637

SHA1
bd89e34502e0a002bd9a0273636789e9a0d07502

SHA256
b18d3fb4e7419b74a13d34262d432e6f37b19c816c017d1484138edd1c8a1923

SHA512
dce994555bbb19f3d38e21e9a2c0b966cf0106281ed67b2f294f5f898bc2a37b121c189010f60d42b8e42b1c8198dafb3119168eb2a7daeeb3f6dd5eff944d1e

Download Submit
memory/404-132-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1360-156-0x0000000000000000-mapping.dmp

Download
memory/1956-147-0x0000000000000000-mapping.dmp

Download
memory/1956-153-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2028-145-0x0000000000000000-mapping.dmp

Download
memory/2564-139-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2564-154-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2564-138-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2564-136-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2564-135-0x0000000000000000-mapping.dmp

Download
memory/3956-146-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/3956-140-0x0000000000000000-mapping.dmp

Download
memory/3956-155-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads