metasploit | bc8a8991e1439ec96086c47c79d224d9e218b8bdc525477e2265761ce802190b

General

Target

37b16efed8e71347d2ca91baee81f60a_JaffaCakes118.exe
Size

132KB
MD5

37b16efed8e71347d2ca91baee81f60a
SHA1

d935cadfff7d039ba69cb2fc7c0b54ddb14eeee6
SHA256

bc8a8991e1439ec96086c47c79d224d9e218b8bdc525477e2265761ce802190b
SHA512

142ffaaeee65b608b50899fb768b6914335fb87f49710978f34bba2b5d1cd8e49c9509cacef5731c2749ed37538ffccd3def8b3691fff17074128b1a1e130bb5
SSDEEP

3072:aeoHqnoFivg3mJltZWj2Zy5zMZAX1FHJHda23TLuQGe9:LwqoFiYmJltTZy5JlFpHspQGe

Score

10^/10

metasploit backdoor defense_evasion discovery persistence trojan

Malware Config

Extracted

Family

metasploit

Version

encoder/fnstenv_mov

Signatures

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

Deletes itself 1 IoCs

pid	Process
2620	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2612	Syslem.exe

Impair Defenses: Safe Mode Boot 1 TTPs 1 IoCs

defense_evasion

Safe Mode Boot

T1562.009

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\Auto Start	37b16efed8e71347d2ca91baee81f60a_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Auto Start = "C:\\Windows\\SysWOW64\\Syslem.exe"	Syslem.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\svchost.dll	Syslem.exe
File opened for modification	C:\Windows\SysWOW64\svchost.dll	Syslem.exe
File created	C:\Windows\SysWOW64\Syslem.exe	37b16efed8e71347d2ca91baee81f60a_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\Syslem.exe	37b16efed8e71347d2ca91baee81f60a_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\Syslem.exe	Syslem.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	37b16efed8e71347d2ca91baee81f60a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Syslem.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	2628	37b16efed8e71347d2ca91baee81f60a_JaffaCakes118.exe
Token: SeShutdownPrivilege	2628	37b16efed8e71347d2ca91baee81f60a_JaffaCakes118.exe
Token: SeDebugPrivilege	2612	Syslem.exe
Token: SeShutdownPrivilege	2612	Syslem.exe
Token: SeBackupPrivilege	2612	Syslem.exe
Token: SeSecurityPrivilege	2612	Syslem.exe
Token: SeSecurityPrivilege	2612	Syslem.exe
Token: SeBackupPrivilege	2612	Syslem.exe
Token: SeSecurityPrivilege	2612	Syslem.exe
Token: SeBackupPrivilege	2612	Syslem.exe
Token: SeSecurityPrivilege	2612	Syslem.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2612	Syslem.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2628 wrote to memory of 2620	2628	37b16efed8e71347d2ca91baee81f60a_JaffaCakes118.exe	32
PID 2628 wrote to memory of 2620	2628	37b16efed8e71347d2ca91baee81f60a_JaffaCakes118.exe	32
PID 2628 wrote to memory of 2620	2628	37b16efed8e71347d2ca91baee81f60a_JaffaCakes118.exe	32
PID 2628 wrote to memory of 2620	2628	37b16efed8e71347d2ca91baee81f60a_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\37b16efed8e71347d2ca91baee81f60a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\37b16efed8e71347d2ca91baee81f60a_JaffaCakes118.exe"
1⤵
- Impair Defenses: Safe Mode Boot
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2628
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del "C:\Users\Admin\AppData\Local\Temp\37B16E~1.EXE" >> NUL
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2620

C:\Windows\SysWOW64\Syslem.exe
C:\Windows\SysWOW64\Syslem.exe
1⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2612

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Impair Defenses

1

T1562

Safe Mode Boot

1

T1562.009

Indicator Removal

1

T1070

File Deletion

Modify Registry

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\Syslem.exe

Filesize
132KB

MD5
37b16efed8e71347d2ca91baee81f60a

SHA1
d935cadfff7d039ba69cb2fc7c0b54ddb14eeee6

SHA256
bc8a8991e1439ec96086c47c79d224d9e218b8bdc525477e2265761ce802190b

SHA512
142ffaaeee65b608b50899fb768b6914335fb87f49710978f34bba2b5d1cd8e49c9509cacef5731c2749ed37538ffccd3def8b3691fff17074128b1a1e130bb5

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads