metasploit | 5e37688a2a872d917d66f0664eb565f5e96567ef52205be2ebc1fb9c5630a38d

General

Target

a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe
Size

155KB
MD5

a5c7b29dd01a33ff6a7816bc3090008b
SHA1

03444eac6ab0df3d0b5f2b21f6b1b6a69e4c50d1
SHA256

5e37688a2a872d917d66f0664eb565f5e96567ef52205be2ebc1fb9c5630a38d
SHA512

7b0de042066f128dabbf81dabf82b0d47df61adc567295c897bbe1a2910a0ca8f94479b90a7bc58bd82246c8d40d26776fec24a11c710718b3d341af0b551787
SSDEEP

3072:+vhhfqviJf2kM5e10wZUahDRJX96JazYo2nKQcKl+a/dvL6/:4/Cg2ve1VZhjXaOYNKQJ+a/Rk

Score

10^/10

metasploit backdoor discovery 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

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\MicrosoftCorp = "C:\\WINDOWS\\mcrsftupdt_39742.exe"	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1144	mcrsftupdt_39742.exe
2872	mcrsftupdt_39742.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\sysdiag64.exe = "C:\\WINDOWS\\mcrsftupdt_39742.exe"	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\MicrosoftNAPC = "C:\\WINDOWS\\mcrsftupdt_39742.exe"	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2376 set thread context of 952	2376	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe	29
PID 1144 set thread context of 2872	1144	mcrsftupdt_39742.exe	31

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\WINDOWS\mcrsftupdt_39742.exe	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe
File opened for modification	C:\WINDOWS\mcrsftupdt_39742.exe	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe
File opened for modification	C:\WINDOWS\mcrsftupdt_39742.exe	mcrsftupdt_39742.exe
File created	C:\WINDOWS\mcrsftupdt_39742.exe	mcrsftupdt_39742.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	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mcrsftupdt_39742.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 952	2376	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe	29
PID 2376 wrote to memory of 952	2376	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe	29
PID 2376 wrote to memory of 952	2376	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe	29
PID 2376 wrote to memory of 952	2376	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe	29
PID 2376 wrote to memory of 952	2376	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe	29
PID 2376 wrote to memory of 952	2376	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe	29
PID 952 wrote to memory of 1144	952	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe	30
PID 952 wrote to memory of 1144	952	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe	30
PID 952 wrote to memory of 1144	952	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe	30
PID 952 wrote to memory of 1144	952	a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe	30
PID 1144 wrote to memory of 2872	1144	mcrsftupdt_39742.exe	31
PID 1144 wrote to memory of 2872	1144	mcrsftupdt_39742.exe	31
PID 1144 wrote to memory of 2872	1144	mcrsftupdt_39742.exe	31
PID 1144 wrote to memory of 2872	1144	mcrsftupdt_39742.exe	31
PID 1144 wrote to memory of 2872	1144	mcrsftupdt_39742.exe	31
PID 1144 wrote to memory of 2872	1144	mcrsftupdt_39742.exe	31

C:\Users\Admin\AppData\Local\Temp\a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Users\Admin\AppData\Local\Temp\a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\a5c7b29dd01a33ff6a7816bc3090008b_JaffaCakes118.exe
  2⤵
  - Adds policy Run key to start application
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:952
- - C:\WINDOWS\mcrsftupdt_39742.exe
    "C:\WINDOWS\mcrsftupdt_39742.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1144
  - - C:\WINDOWS\mcrsftupdt_39742.exe
      C:\WINDOWS\mcrsftupdt_39742.exe
      4⤵
      Executes dropped EXE
      Drops file in Windows directory
      PID:2872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Defense Evasion

Modify Registry

2

T1112

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\mcrsftupdt_39742.exe

Filesize
155KB

MD5
a5c7b29dd01a33ff6a7816bc3090008b

SHA1
03444eac6ab0df3d0b5f2b21f6b1b6a69e4c50d1

SHA256
5e37688a2a872d917d66f0664eb565f5e96567ef52205be2ebc1fb9c5630a38d

SHA512
7b0de042066f128dabbf81dabf82b0d47df61adc567295c897bbe1a2910a0ca8f94479b90a7bc58bd82246c8d40d26776fec24a11c710718b3d341af0b551787

Download Submit
memory/952-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/952-6-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/952-4-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/952-8-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/952-0-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/952-7-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/952-9-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/952-21-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2872-37-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2872-41-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2872-33-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2872-31-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2872-38-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2872-39-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2872-40-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2872-32-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2872-42-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2872-43-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2872-44-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2872-45-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2872-46-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2872-47-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2872-48-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads