metasploit | d6abecab9839ebab1336a822b23be4a846f50039844ad9e0657e408f01d0d326

General

Target

9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe
Size

248KB
MD5

9d9205befd48b3d67ad2c6a1e8f40d06
SHA1

59f882f420f135baa305507f5baba312b6ff9983
SHA256

d6abecab9839ebab1336a822b23be4a846f50039844ad9e0657e408f01d0d326
SHA512

1c00c5079fd42f8916e747cd338c0b2c1720e6515c01b10e80c2758c3c8b3ac65fda06dfeef7b5363e8926829df66e7650e6af3f41412fffdc78f0bb06731a2b
SSDEEP

3072:wyKe64rz5/lzD8A6LmPdNJGhszlMN3Rz46RVO8Cc5LbKpo:wy56alPdNQWBMNNxVOwL

Score

10^/10

metasploit backdoor discovery evasion 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
Metasploit family
metasploit

Modifies firewall policy service 3 TTPs 8 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	igfxbr64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	igfxbr64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	igfxbr64.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxbr64.exe = "C:\\Windows\\SysWOW64\\igfxbr64.exe:*:Enabled:Intel Registry Monitor"	igfxbr64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	igfxbr64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	igfxbr64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	igfxbr64.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxbr64.exe = "C:\\Windows\\SysWOW64\\igfxbr64.exe:*:Enabled:Intel Registry Monitor"	igfxbr64.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2152	igfxbr64.exe

Executes dropped EXE 2 IoCs

pid	Process
1748	igfxbr64.exe
2152	igfxbr64.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\Intel Registry Monitor = "C:\\Windows\\SysWOW64\\igfxbr64.exe"	igfxbr64.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	igfxbr64.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	igfxbr64.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\igfxbr64.exe	igfxbr64.exe
File opened for modification	C:\Windows\SysWOW64\	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\igfxbr64.exe	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\igfxbr64.exe	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	igfxbr64.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4996 set thread context of 2064	4996	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe	92
PID 1748 set thread context of 2152	1748	igfxbr64.exe	98

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2064-0-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral2/memory/2064-2-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral2/memory/2064-3-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral2/memory/2064-4-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral2/memory/2064-38-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral2/memory/2152-43-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral2/memory/2152-44-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral2/memory/2152-45-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral2/memory/2152-46-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral2/memory/2152-47-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral2/memory/2152-48-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral2/memory/2152-55-0x0000000000400000-0x0000000000465000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	igfxbr64.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	igfxbr64.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2064	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe
2064	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe
2064	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe
2064	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe
2152	igfxbr64.exe
2152	igfxbr64.exe
2152	igfxbr64.exe
2152	igfxbr64.exe
2152	igfxbr64.exe
2152	igfxbr64.exe
2152	igfxbr64.exe
2152	igfxbr64.exe
2152	igfxbr64.exe
2152	igfxbr64.exe
2152	igfxbr64.exe
2152	igfxbr64.exe
2152	igfxbr64.exe
2152	igfxbr64.exe
2152	igfxbr64.exe
2152	igfxbr64.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 2064	4996	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe	92
PID 4996 wrote to memory of 2064	4996	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe	92
PID 4996 wrote to memory of 2064	4996	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe	92
PID 4996 wrote to memory of 2064	4996	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe	92
PID 4996 wrote to memory of 2064	4996	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe	92
PID 4996 wrote to memory of 2064	4996	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe	92
PID 4996 wrote to memory of 2064	4996	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe	92
PID 4996 wrote to memory of 2064	4996	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe	92
PID 2064 wrote to memory of 1748	2064	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe	97
PID 2064 wrote to memory of 1748	2064	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe	97
PID 2064 wrote to memory of 1748	2064	9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe	97
PID 1748 wrote to memory of 2152	1748	igfxbr64.exe	98
PID 1748 wrote to memory of 2152	1748	igfxbr64.exe	98
PID 1748 wrote to memory of 2152	1748	igfxbr64.exe	98
PID 1748 wrote to memory of 2152	1748	igfxbr64.exe	98
PID 1748 wrote to memory of 2152	1748	igfxbr64.exe	98
PID 1748 wrote to memory of 2152	1748	igfxbr64.exe	98
PID 1748 wrote to memory of 2152	1748	igfxbr64.exe	98
PID 1748 wrote to memory of 2152	1748	igfxbr64.exe	98
PID 2152 wrote to memory of 3444	2152	igfxbr64.exe	56
PID 2152 wrote to memory of 3444	2152	igfxbr64.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3444
- C:\Users\Admin\AppData\Local\Temp\9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4996
- - C:\Users\Admin\AppData\Local\Temp\9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\9d9205befd48b3d67ad2c6a1e8f40d06_JaffaCakes118.exe"
    3⤵
    - Checks computer location settings
    - Maps connected drives based on registry
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2064
  - - C:\Windows\SysWOW64\igfxbr64.exe
      "C:\Windows\SysWOW64\igfxbr64.exe" C:\Users\Admin\AppData\Local\Temp\9D9205~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1748
    - - C:\Windows\SysWOW64\igfxbr64.exe
        
        "C:\Windows\SysWOW64\igfxbr64.exe" C:\Users\Admin\AppData\Local\Temp\9D9205~1.EXE
        5⤵
        Modifies firewall policy service
        Deletes itself
        Executes dropped EXE
        Adds Run key to start application
        Maps connected drives based on registry
        Drops file in System32 directory
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:2152

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

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

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\igfxbr64.exe

Filesize
248KB

MD5
9d9205befd48b3d67ad2c6a1e8f40d06

SHA1
59f882f420f135baa305507f5baba312b6ff9983

SHA256
d6abecab9839ebab1336a822b23be4a846f50039844ad9e0657e408f01d0d326

SHA512
1c00c5079fd42f8916e747cd338c0b2c1720e6515c01b10e80c2758c3c8b3ac65fda06dfeef7b5363e8926829df66e7650e6af3f41412fffdc78f0bb06731a2b

Download Submit
memory/2064-0-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2064-2-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2064-3-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2064-4-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2064-38-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2152-43-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2152-44-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2152-45-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2152-46-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2152-47-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2152-48-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2152-55-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads