metasploit | d88509c5cdf6f56524da855fe46df4873c46f8e5a445c2fd9f682ae571f43716

General

Target

f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe
Size

157KB
MD5

f7b9c2079803e33ddbc1a82f1eabcb3c
SHA1

25f67847d78f1bb810a8a03b60a301de1b62117c
SHA256

d88509c5cdf6f56524da855fe46df4873c46f8e5a445c2fd9f682ae571f43716
SHA512

ecbb6383db74bc4dd69c8c9f6b785e37623fe81ca56286a2ac9e3f2d6a00eac0e8be5e2d1cab706886c2b8b79c663c20fa660bb7db48f859fd6f6726639e82ce
SSDEEP

3072:cIT9WNX5zJZ6TXcTA9F0Dhfpln3i5w8HgNrzw2:cITMKYTA9F6hfpty2w2

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

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
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxpf86.exe = "C:\\Windows\\SysWOW64\\igfxpf86.exe:*:Enabled:Intel Packet Monitor"	igfxpf86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	igfxpf86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	igfxpf86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	igfxpf86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxpf86.exe = "C:\\Windows\\SysWOW64\\igfxpf86.exe:*:Enabled:Intel Packet Monitor"	igfxpf86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	igfxpf86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	igfxpf86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	igfxpf86.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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
1496	igfxpf86.exe

Executes dropped EXE 2 IoCs

pid	Process
1112	igfxpf86.exe
1496	igfxpf86.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 Packet Monitor = "C:\\Windows\\SysWOW64\\igfxpf86.exe"	igfxpf86.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	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	igfxpf86.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	igfxpf86.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\igfxpf86.exe	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\igfxpf86.exe	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	igfxpf86.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1764 set thread context of 5116	1764	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe	89
PID 1112 set thread context of 1496	1112	igfxpf86.exe	97

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5116-0-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/5116-2-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/5116-3-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/5116-4-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/1496-43-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/5116-42-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/5116-45-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/5116-46-0x0000000000400000-0x000000000042C000-memory.dmp	upx
behavioral2/memory/1496-47-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/1496-48-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/1496-49-0x0000000000400000-0x000000000044B000-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	igfxpf86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	igfxpf86.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
5116	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe
5116	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe
5116	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe
5116	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe
1496	igfxpf86.exe
1496	igfxpf86.exe
1496	igfxpf86.exe
1496	igfxpf86.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1764 wrote to memory of 5116	1764	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe	89
PID 1764 wrote to memory of 5116	1764	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe	89
PID 1764 wrote to memory of 5116	1764	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe	89
PID 1764 wrote to memory of 5116	1764	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe	89
PID 1764 wrote to memory of 5116	1764	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe	89
PID 1764 wrote to memory of 5116	1764	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe	89
PID 1764 wrote to memory of 5116	1764	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe	89
PID 5116 wrote to memory of 1112	5116	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe	96
PID 5116 wrote to memory of 1112	5116	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe	96
PID 5116 wrote to memory of 1112	5116	f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe	96
PID 1112 wrote to memory of 1496	1112	igfxpf86.exe	97
PID 1112 wrote to memory of 1496	1112	igfxpf86.exe	97
PID 1112 wrote to memory of 1496	1112	igfxpf86.exe	97
PID 1112 wrote to memory of 1496	1112	igfxpf86.exe	97
PID 1112 wrote to memory of 1496	1112	igfxpf86.exe	97
PID 1112 wrote to memory of 1496	1112	igfxpf86.exe	97
PID 1112 wrote to memory of 1496	1112	igfxpf86.exe	97
PID 1496 wrote to memory of 3420	1496	igfxpf86.exe	56
PID 1496 wrote to memory of 3420	1496	igfxpf86.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3420
- C:\Users\Admin\AppData\Local\Temp\f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1764
- - C:\Users\Admin\AppData\Local\Temp\f7b9c2079803e33ddbc1a82f1eabcb3c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f7b9c2079803e33ddbc1a82f1eabcb3c_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:5116
  - - C:\Windows\SysWOW64\igfxpf86.exe
      "C:\Windows\SysWOW64\igfxpf86.exe" C:\Users\Admin\AppData\Local\Temp\F7B9C2~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1112
    - - C:\Windows\SysWOW64\igfxpf86.exe
        
        "C:\Windows\SysWOW64\igfxpf86.exe" C:\Users\Admin\AppData\Local\Temp\F7B9C2~1.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:1496

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3484,i,15436195446242760253,4000484513008731869,262144 --variations-seed-version --mojo-platform-channel-handle=4248 /prefetch:8
1⤵
PID:4760

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\igfxpf86.exe

Filesize
157KB

MD5
f7b9c2079803e33ddbc1a82f1eabcb3c

SHA1
25f67847d78f1bb810a8a03b60a301de1b62117c

SHA256
d88509c5cdf6f56524da855fe46df4873c46f8e5a445c2fd9f682ae571f43716

SHA512
ecbb6383db74bc4dd69c8c9f6b785e37623fe81ca56286a2ac9e3f2d6a00eac0e8be5e2d1cab706886c2b8b79c663c20fa660bb7db48f859fd6f6726639e82ce

Download Submit
memory/1496-43-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1496-47-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1496-48-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1496-49-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/5116-0-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/5116-2-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/5116-3-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/5116-4-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/5116-42-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/5116-45-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/5116-46-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads