metasploit | 1161eccd3bacb08b97081712c058c021f5d89757b51b237008b5a75dfa965921

General

Target

ff62d945af719b9ebd0c54ec2d395ea3_JaffaCakes118.exe
Size

1.2MB
MD5

ff62d945af719b9ebd0c54ec2d395ea3
SHA1

ac4f17d6e7681d2e833ffd9b8aa52bf2a90bfa3b
SHA256

1161eccd3bacb08b97081712c058c021f5d89757b51b237008b5a75dfa965921
SHA512

f7ce5e55a4df55c174e1c8b32843f0c286959e3f98c902a030039953e9bc0a732398b40dd4f4ecf6e7adbf2adfea700c4ebb07ba92b84684262c074a79a10deb
SSDEEP

12288:fR5dhuGRBTJkjkjVcXRUXETz3UQHS9ZeRepaA5jAJIq:fRXRvjVOUXK3ewRepaAa

Score

10^/10

metasploit backdoor discovery evasion 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

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	msddll.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	ff62d945af719b9ebd0c54ec2d395ea3_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2548	msddll.exe

Executes dropped EXE 1 IoCs

pid	Process
2548	msddll.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Wine	ff62d945af719b9ebd0c54ec2d395ea3_JaffaCakes118.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	msddll.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1964	ff62d945af719b9ebd0c54ec2d395ea3_JaffaCakes118.exe
2548	msddll.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\msddll.exe	ff62d945af719b9ebd0c54ec2d395ea3_JaffaCakes118.exe
File opened for modification	C:\Windows\system\msddll.exe	ff62d945af719b9ebd0c54ec2d395ea3_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	ff62d945af719b9ebd0c54ec2d395ea3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msddll.exe

Modifies data under HKEY_USERS 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	msddll.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	msddll.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	msddll.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	msddll.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	msddll.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	msddll.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1964	ff62d945af719b9ebd0c54ec2d395ea3_JaffaCakes118.exe
2548	msddll.exe

C:\Users\Admin\AppData\Local\Temp\ff62d945af719b9ebd0c54ec2d395ea3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ff62d945af719b9ebd0c54ec2d395ea3_JaffaCakes118.exe"
1⤵
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1964

C:\Windows\system\msddll.exe
"C:\Windows\system\msddll.exe"
1⤵
- Checks BIOS information in registry
- Deletes itself
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
PID:2548

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\system\msddll.exe

Filesize
1.2MB

MD5
ff62d945af719b9ebd0c54ec2d395ea3

SHA1
ac4f17d6e7681d2e833ffd9b8aa52bf2a90bfa3b

SHA256
1161eccd3bacb08b97081712c058c021f5d89757b51b237008b5a75dfa965921

SHA512
f7ce5e55a4df55c174e1c8b32843f0c286959e3f98c902a030039953e9bc0a732398b40dd4f4ecf6e7adbf2adfea700c4ebb07ba92b84684262c074a79a10deb

Download Submit
memory/1964-15-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/1964-1-0x0000000000401000-0x0000000000409000-memory.dmp

Filesize
32KB

Download
memory/1964-2-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/1964-5-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/1964-4-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/1964-3-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/1964-9-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/1964-8-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/1964-0-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-20-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-25-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-16-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-12-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-18-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-19-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-11-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-21-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-22-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-23-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-24-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-14-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-26-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-27-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-28-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-29-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-30-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-31-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-32-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-33-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-34-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download
memory/2548-35-0x0000000000400000-0x00000000005B4000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads