metasploit | e4ebb2c69a427c815f3bb64a524a7e14893029d8be22a25bbca344f35d8294c6

Analysis

max time kernel
147s
max time network
153s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
28-11-2024 04:14

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General

Target

aaf1fe6140ec9dab4fb5a4ce5f62e08b_JaffaCakes118.exe
Size

642KB
MD5

aaf1fe6140ec9dab4fb5a4ce5f62e08b
SHA1

cb323a9b2e0479d6814f5a20b0b05d2c3272340d
SHA256

e4ebb2c69a427c815f3bb64a524a7e14893029d8be22a25bbca344f35d8294c6
SHA512

3cefc16db096b860202d84e027f65df2ce39275c102a4d74fceb97c0b2cc4adb9f058ba1ade5da3f699f64cb1417a5e3e4207b08433efd73ab11fc0e1caffd35
SSDEEP

12288:4ya+nhKwCElN8wOrH3M9U7EQBM/uvSLTvrQ/gCQNop0BfFP4xPFj0CQ945E:PaYBFlqwwHcafgCMftUtjyu5E

Score

10^/10

metasploit backdoor discovery evasion persistence trojan

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
Metasploit family
metasploit

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "Explorer.exe %windir%\\system32\\drivers\\alcomrg.exe"	alcomrg.exe

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4"	alcomrg.exe

Windows security bypass 2 TTPs 5 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	alcomrg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	alcomrg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	alcomrg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	alcomrg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	alcomrg.exe

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	alcomrg.exe

Disables Task Manager via registry modification
evasion

Drops file in Drivers directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\alcomrg.exe	aaf1fe6140ec9dab4fb5a4ce5f62e08b_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\drivers\alcomrg.exe	aaf1fe6140ec9dab4fb5a4ce5f62e08b_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\drivers\alcomrg.exe	alcomrg.exe
File created	C:\Windows\SysWOW64\drivers\alcomrg.exe	alcomrg.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	alcomrg.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	aaf1fe6140ec9dab4fb5a4ce5f62e08b_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2168	alcomrg.exe

Executes dropped EXE 1 IoCs

pid	Process
2168	alcomrg.exe

Identifies Wine through registry keys 2 TTPs 2 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	aaf1fe6140ec9dab4fb5a4ce5f62e08b_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	alcomrg.exe

Loads dropped DLL 2 IoCs

pid	Process
1688	aaf1fe6140ec9dab4fb5a4ce5f62e08b_JaffaCakes118.exe
1688	aaf1fe6140ec9dab4fb5a4ce5f62e08b_JaffaCakes118.exe

Windows security modification 2 TTPs 5 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	alcomrg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	alcomrg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	alcomrg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	alcomrg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	alcomrg.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\alcomrg.exe = "C:\\Windows\\system32\\drivers\\alcomrg.exe"	aaf1fe6140ec9dab4fb5a4ce5f62e08b_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	aaf1fe6140ec9dab4fb5a4ce5f62e08b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	alcomrg.exe

Modifies data under HKEY_USERS 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies	alcomrg.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	alcomrg.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr = "1"	alcomrg.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System	alcomrg.exe
Key created	\REGISTRY\USER\.DEFAULT	alcomrg.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows	alcomrg.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion	alcomrg.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	alcomrg.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft	alcomrg.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2168	alcomrg.exe
2168	alcomrg.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2168	alcomrg.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 2168	1688	aaf1fe6140ec9dab4fb5a4ce5f62e08b_JaffaCakes118.exe	30
PID 1688 wrote to memory of 2168	1688	aaf1fe6140ec9dab4fb5a4ce5f62e08b_JaffaCakes118.exe	30
PID 1688 wrote to memory of 2168	1688	aaf1fe6140ec9dab4fb5a4ce5f62e08b_JaffaCakes118.exe	30
PID 1688 wrote to memory of 2168	1688	aaf1fe6140ec9dab4fb5a4ce5f62e08b_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\aaf1fe6140ec9dab4fb5a4ce5f62e08b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\aaf1fe6140ec9dab4fb5a4ce5f62e08b_JaffaCakes118.exe"
1⤵
- Drops file in Drivers directory
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Windows\SysWOW64\drivers\alcomrg.exe
  "C:\Windows\system32\drivers\alcomrg.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Modifies security service
  - Windows security bypass
  - Disables RegEdit via registry modification
  - Drops file in Drivers directory
  - Checks BIOS information in registry
  - Deletes itself
  - Executes dropped EXE
  - Identifies Wine through registry keys
  - Windows security modification
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2168

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Windows\SysWOW64\drivers\alcomrg.exe

Filesize
642KB

MD5
aaf1fe6140ec9dab4fb5a4ce5f62e08b

SHA1
cb323a9b2e0479d6814f5a20b0b05d2c3272340d

SHA256
e4ebb2c69a427c815f3bb64a524a7e14893029d8be22a25bbca344f35d8294c6

SHA512
3cefc16db096b860202d84e027f65df2ce39275c102a4d74fceb97c0b2cc4adb9f058ba1ade5da3f699f64cb1417a5e3e4207b08433efd73ab11fc0e1caffd35

Download Submit
memory/1688-0-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/1688-1-0x0000000000401000-0x000000000040E000-memory.dmp

Filesize
52KB

Download
memory/1688-2-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/1688-4-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/1688-3-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/1688-7-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/1688-8-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/1688-15-0x0000000004830000-0x0000000004A0A000-memory.dmp

Filesize
1.9MB

Download
memory/1688-17-0x0000000004830000-0x0000000004A0A000-memory.dmp

Filesize
1.9MB

Download
memory/2168-28-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-33-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-22-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-23-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-24-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-25-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-26-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-27-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-18-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-29-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-30-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-31-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-32-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-20-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-34-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-35-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-36-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-37-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-38-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-39-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-41-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-42-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-43-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-44-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-45-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-46-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-47-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/2168-48-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download