metasploit | f6b93bbb9d542fe1a02192a90f0acae4533dfeaf7ce24370ff64567218ab206a

General

Target

bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe
Size

120KB
MD5

bcc85c5e7c78cefeedc726c0fc03eafc
SHA1

08efda002c4ee23ed90404a58e458ab989187f48
SHA256

f6b93bbb9d542fe1a02192a90f0acae4533dfeaf7ce24370ff64567218ab206a
SHA512

651838222a3c065a036ae1d0e47f66f3659064d0f49ce8ae8eeabc52ac872089da8b155513efedd4c113631ce999d78fe218a239f2a1cc591df3a2ff3af550a8
SSDEEP

3072:GLUIbPHdRg/jsBPn+xMFrczeCqeMFFh2miJ791:GLUIbvdGbsVnjCDM+F/

Score

10^/10

metasploit backdoor discovery evasion persistence trojan upx

Malware Config

Extracted

Family

metasploit

Version

encoder/fnstenv_mov

Signatures

MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit

Modifies security service 2 TTPs 2 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wuauserv\Start = "4"	regedit.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4"	regedit.exe

UPX packed file 16 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1008-1-0x0000000000400000-0x000000000052D000-memory.dmp	upx
behavioral1/memory/1008-116-0x0000000000400000-0x000000000052D000-memory.dmp	upx
behavioral1/memory/1008-117-0x0000000000400000-0x000000000052D000-memory.dmp	upx
behavioral1/memory/1008-118-0x0000000000400000-0x000000000052D000-memory.dmp	upx
behavioral1/memory/1008-119-0x0000000000400000-0x000000000052D000-memory.dmp	upx
behavioral1/memory/1008-120-0x0000000000400000-0x000000000052D000-memory.dmp	upx
behavioral1/memory/1008-121-0x0000000000400000-0x000000000052D000-memory.dmp	upx
behavioral1/memory/1008-123-0x0000000000400000-0x000000000052D000-memory.dmp	upx
behavioral1/memory/1008-124-0x0000000000400000-0x000000000052D000-memory.dmp	upx
behavioral1/memory/1008-125-0x0000000000400000-0x000000000052D000-memory.dmp	upx
behavioral1/memory/1008-126-0x0000000000400000-0x000000000052D000-memory.dmp	upx
behavioral1/memory/1008-127-0x0000000000400000-0x000000000052D000-memory.dmp	upx
behavioral1/memory/1008-128-0x0000000000400000-0x000000000052D000-memory.dmp	upx
behavioral1/memory/1008-129-0x0000000000400000-0x000000000052D000-memory.dmp	upx
behavioral1/memory/1008-130-0x0000000000400000-0x000000000052D000-memory.dmp	upx
behavioral1/memory/1008-131-0x0000000000400000-0x000000000052D000-memory.dmp	upx

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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ = "bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe"	bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunServices\ = "bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe"	bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\	bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regedit.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe

Runs .reg file with regedit 1 IoCs

pid	Process
3008	regedit.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1008	bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe
1008	bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe
1008	bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe
1008	bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe
1008	bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1008	bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1008 wrote to memory of 2332	1008	bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe	30
PID 1008 wrote to memory of 2332	1008	bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe	30
PID 1008 wrote to memory of 2332	1008	bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe	30
PID 1008 wrote to memory of 2332	1008	bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe	30
PID 2332 wrote to memory of 3008	2332	cmd.exe	31
PID 2332 wrote to memory of 3008	2332	cmd.exe	31
PID 2332 wrote to memory of 3008	2332	cmd.exe	31
PID 2332 wrote to memory of 3008	2332	cmd.exe	31

C:\Users\Admin\AppData\Local\Temp\bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bcc85c5e7c78cefeedc726c0fc03eafc_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1008
- C:\Windows\SysWOW64\cmd.exe
  cmd /c c:\a.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2332
- - C:\Windows\SysWOW64\regedit.exe
    REGEDIT /S C:\Users\Admin\AppData\Local\Temp\1.reg
    3⤵
    - Modifies security service
    - System Location Discovery: System Language Discovery
    - Runs .reg file with regedit
    PID:3008

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

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:\Users\Admin\AppData\Local\Temp\1.reg

Filesize
942B

MD5
4cee92ad10b11dbf325a40c64ff7d745

SHA1
b395313d0e979fede2261f8cc558fcebfefcae33

SHA256
eaeac48f16abac608c9bb5b8d0d363b2ca27708b262c1de41ab0f163c39a2fb1

SHA512
3f11992b0c8f7c6f0180f984392f86ea8eb1859be236e2bbfbc863226d3cac67b06700561f27fb673e2955c6ebc5b168dd28ca704de57c4f6c07bdbf14f75ec9

Download Submit
C:\Users\Admin\AppData\Local\Temp\1.reg

Filesize
3KB

MD5
9e5db93bd3302c217b15561d8f1e299d

SHA1
95a5579b336d16213909beda75589fd0a2091f30

SHA256
f360fb5740172b6b4dd59c1ac30b480511665ae991196f833167e275d91f943e

SHA512
b5547e5047a3c43397ee846ff9d5979cba45ba44671db5c5df5536d9dc26262e27a8645a08e0cf35960a3601dc0f6f5fe8d47ae232c9ca44d6899e97d36fb25a

Download Submit
C:\a.bat

Filesize
5KB

MD5
0019a0451cc6b9659762c3e274bc04fb

SHA1
5259e256cc0908f2846e532161b989f1295f479b

SHA256
ce4674afd978d1401596d22a0961f90c8fb53c5bd55649684e1a999c8cf77876

SHA512
314c23ec37cb0cd4443213c019c4541df968447353b422ef6fff1e7ddf6c983c80778787408b7ca9b81e580a6a7f1589ca7f43c022e6fc16182973580ed4d904

Download Submit
memory/1008-120-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1008-123-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1008-117-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1008-118-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1008-119-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1008-1-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1008-121-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1008-116-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1008-124-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1008-125-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1008-126-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1008-127-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1008-128-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1008-129-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1008-130-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1008-131-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads