metasploit | b3704fffcc57e829bce69086371f497de31499d8c2d9ff06ce86a3f1c2c014b2

General

Target

7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe
Size

168KB
MD5

7f25dcb0bfd074a36dd11120167443b7
SHA1

3763bd3bf295a9a4244a7f82aaa94fa70748d279
SHA256

b3704fffcc57e829bce69086371f497de31499d8c2d9ff06ce86a3f1c2c014b2
SHA512

e3314935c8aca7b4532cde1d2c1cc3bc0c662a5bd038c40bc12bfb09ea99fcefeb3570c319b3b9abedaf851bfa15db8cbfc6482ad3290b7645f8c4bc938e7839
SSDEEP

3072:dCADZrCf5So78VnkTfDdofYRxYv0sSpMU4HBWsN+oWFcgz7xpM:gOrCyVkmSh4H5MoWFjdpM

Score

10^/10

metasploit backdoor discovery 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
Executes dropped EXE 2 IoCs

Processes:

repsvc.exerepsvc.exe

pid process

1064 repsvc.exe
4152 repsvc.exe

pid	process
1064	repsvc.exe
4152	repsvc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Remote Registry Service = "repsvc.exe"	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe

Drops file in System32 directory 4 IoCs

Processes:

repsvc.exe7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\repsvc.exe	repsvc.exe
File created	C:\Windows\SysWOW64\repsvc.exe	repsvc.exe
File created	C:\Windows\SysWOW64\repsvc.exe	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\repsvc.exe	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exerepsvc.exe

description	pid	process	target process
PID 3236 set thread context of 116	3236	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe
PID 1064 set thread context of 4152	1064	repsvc.exe	repsvc.exe

UPX packed file 16 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/116-2-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/memory/116-4-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/memory/116-5-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/memory/116-16-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/memory/4152-21-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/memory/4152-20-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/memory/4152-23-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/memory/4152-27-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/memory/4152-28-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/memory/4152-29-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/memory/4152-30-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/memory/4152-31-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/memory/4152-32-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/memory/4152-33-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/memory/4152-34-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral2/memory/4152-36-0x0000000000400000-0x000000000045E000-memory.dmp	upx

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

Processes:

7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exerepsvc.exerepsvc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	repsvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	repsvc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exerepsvc.exe

pid process

3236 7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe
1064 repsvc.exe

pid	process
3236	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe
1064	repsvc.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exerepsvc.exe

description	pid	process	target process
PID 3236 wrote to memory of 116	3236	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe
PID 3236 wrote to memory of 116	3236	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe
PID 3236 wrote to memory of 116	3236	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe
PID 3236 wrote to memory of 116	3236	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe
PID 3236 wrote to memory of 116	3236	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe
PID 3236 wrote to memory of 116	3236	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe
PID 3236 wrote to memory of 116	3236	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe
PID 3236 wrote to memory of 116	3236	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe
PID 116 wrote to memory of 1064	116	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe	repsvc.exe
PID 116 wrote to memory of 1064	116	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe	repsvc.exe
PID 116 wrote to memory of 1064	116	7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe	repsvc.exe
PID 1064 wrote to memory of 4152	1064	repsvc.exe	repsvc.exe
PID 1064 wrote to memory of 4152	1064	repsvc.exe	repsvc.exe
PID 1064 wrote to memory of 4152	1064	repsvc.exe	repsvc.exe
PID 1064 wrote to memory of 4152	1064	repsvc.exe	repsvc.exe
PID 1064 wrote to memory of 4152	1064	repsvc.exe	repsvc.exe
PID 1064 wrote to memory of 4152	1064	repsvc.exe	repsvc.exe
PID 1064 wrote to memory of 4152	1064	repsvc.exe	repsvc.exe
PID 1064 wrote to memory of 4152	1064	repsvc.exe	repsvc.exe

C:\Users\Admin\AppData\Local\Temp\7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3236

C:\Users\Admin\AppData\Local\Temp\7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7f25dcb0bfd074a36dd11120167443b7_JaffaCakes118.exe"
2⤵
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:116

C:\Windows\SysWOW64\repsvc.exe
"C:\Windows\system32\repsvc.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1064

C:\Windows\SysWOW64\repsvc.exe
"C:\Windows\SysWOW64\repsvc.exe"
4⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
PID:4152

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

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

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\SysWOW64\repsvc.exe

Filesize
168KB

MD5
7f25dcb0bfd074a36dd11120167443b7

SHA1
3763bd3bf295a9a4244a7f82aaa94fa70748d279

SHA256
b3704fffcc57e829bce69086371f497de31499d8c2d9ff06ce86a3f1c2c014b2

SHA512
e3314935c8aca7b4532cde1d2c1cc3bc0c662a5bd038c40bc12bfb09ea99fcefeb3570c319b3b9abedaf851bfa15db8cbfc6482ad3290b7645f8c4bc938e7839

Download Submit
memory/116-2-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/116-4-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/116-5-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/116-6-0x00007FFC45ED0000-0x00007FFC460C5000-memory.dmp

Filesize
2.0MB

Download
memory/116-16-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4152-25-0x00007FFC45ED0000-0x00007FFC460C5000-memory.dmp

Filesize
2.0MB

Download
memory/4152-29-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4152-20-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4152-23-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4152-21-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4152-27-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4152-28-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4152-22-0x00007FFC45ED0000-0x00007FFC460C5000-memory.dmp

Filesize
2.0MB

Download
memory/4152-30-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4152-31-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4152-32-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4152-33-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4152-34-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4152-36-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads