metasploit | 82b10e0f46ca7b53146f8f05fec13fc149af4e766c854ca01990b55842424994

General

Target

JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
Size

132KB
MD5

8aaf6135f756324620c10c7cff249462
SHA1

57b2110f4e7b4809a23c68299bdd9ab72b315ff7
SHA256

82b10e0f46ca7b53146f8f05fec13fc149af4e766c854ca01990b55842424994
SHA512

513b6f98fb13691abc07dbbe308429cb848655fb93cdb0d536e80f4fa3c6ffe1c7871be0b048687c7f4a126be7ba6573ac688d03a0fcc29de8915b45a937269d
SSDEEP

3072:Ou3tma0Z2lcQjpLmQt+FtOgFPGy7QTm5vOTPuf8NrGL+zS35ivT:p3tmaAkNDt+FtOgFPh7QTm5vOTUSrGLw

Score

10^/10

metasploit backdoor defense_evasion discovery 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 4 IoCs

defense_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\StandardProfile\AuthorizedApplications\List	wmpkc32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkc32.exe = "C:\\Windows\\SysWOW64\\wmpkc32.exe:*:Enabled:WinMedia Config"	wmpkc32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpkc32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkc32.exe = "C:\\Windows\\SysWOW64\\wmpkc32.exe:*:Enabled:WinMedia Config"	wmpkc32.exe

Deletes itself 1 IoCs

pid	Process
2828	wmpkc32.exe

Executes dropped EXE 2 IoCs

pid	Process
2732	wmpkc32.exe
2828	wmpkc32.exe

Loads dropped DLL 2 IoCs

pid	Process
2388	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
2388	JaffaCakes118_8aaf6135f756324620c10c7cff249462.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	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpkc32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	wmpkc32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
File opened for modification	C:\Windows\SysWOW64\wmpkc32.exe	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
File created	C:\Windows\SysWOW64\wmpkc32.exe	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
File opened for modification	C:\Windows\SysWOW64\	wmpkc32.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2072 set thread context of 2388	2072	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	30
PID 2732 set thread context of 2828	2732	wmpkc32.exe	33

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2388-6-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2388-10-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2388-9-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2388-8-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2388-4-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2388-2-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2388-11-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2388-12-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2388-25-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2828-34-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2828-36-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2828-35-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2828-37-0x0000000000400000-0x0000000000451000-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 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	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpkc32.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2388	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
2388	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
2828	wmpkc32.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 2388	2072	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	30
PID 2072 wrote to memory of 2388	2072	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	30
PID 2072 wrote to memory of 2388	2072	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	30
PID 2072 wrote to memory of 2388	2072	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	30
PID 2072 wrote to memory of 2388	2072	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	30
PID 2072 wrote to memory of 2388	2072	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	30
PID 2072 wrote to memory of 2388	2072	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	30
PID 2388 wrote to memory of 2732	2388	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	32
PID 2388 wrote to memory of 2732	2388	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	32
PID 2388 wrote to memory of 2732	2388	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	32
PID 2388 wrote to memory of 2732	2388	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	32
PID 2732 wrote to memory of 2828	2732	wmpkc32.exe	33
PID 2732 wrote to memory of 2828	2732	wmpkc32.exe	33
PID 2732 wrote to memory of 2828	2732	wmpkc32.exe	33
PID 2732 wrote to memory of 2828	2732	wmpkc32.exe	33
PID 2732 wrote to memory of 2828	2732	wmpkc32.exe	33
PID 2732 wrote to memory of 2828	2732	wmpkc32.exe	33
PID 2732 wrote to memory of 2828	2732	wmpkc32.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2072
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe"
  2⤵
  - Loads dropped DLL
  - 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:2388
- - C:\Windows\SysWOW64\wmpkc32.exe
    "C:\Windows\SysWOW64\wmpkc32.exe" C:\Users\Admin\AppData\Local\Temp\JAFFAC~1.EXE
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2732
  - - C:\Windows\SysWOW64\wmpkc32.exe
      "C:\Windows\SysWOW64\wmpkc32.exe" C:\Users\Admin\AppData\Local\Temp\JAFFAC~1.EXE
      4⤵
      Modifies firewall policy service
      Deletes itself
      Executes dropped EXE
      Maps connected drives based on registry
      Drops file in System32 directory
      Suspicious behavior: EnumeratesProcesses
      PID:2828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

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

2

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

\Windows\SysWOW64\wmpkc32.exe

Filesize
132KB

MD5
8aaf6135f756324620c10c7cff249462

SHA1
57b2110f4e7b4809a23c68299bdd9ab72b315ff7

SHA256
82b10e0f46ca7b53146f8f05fec13fc149af4e766c854ca01990b55842424994

SHA512
513b6f98fb13691abc07dbbe308429cb848655fb93cdb0d536e80f4fa3c6ffe1c7871be0b048687c7f4a126be7ba6573ac688d03a0fcc29de8915b45a937269d

Download Submit
memory/2388-9-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2388-12-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2388-0-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2388-8-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2388-4-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2388-2-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2388-11-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2388-10-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2388-6-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2388-25-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2828-34-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2828-36-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2828-35-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2828-37-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads