d4092117e14c578ddd165f30eabcee6a7c1dccb5535a0ba4b342a0c00f9880d8

General

Target

ac667dda38fcc71bda24847c0ef0394a_JaffaCakes118.exe
Size

40KB
MD5

ac667dda38fcc71bda24847c0ef0394a
SHA1

647903abf7a9beeadab37d5e929944fd667252c2
SHA256

d4092117e14c578ddd165f30eabcee6a7c1dccb5535a0ba4b342a0c00f9880d8
SHA512

76b1af65e895089f67b3cd50f63861812c1ec3e9d124934059b66bfb3d6ce1a23ff48a8e190864fec8e0a190fa7d37ecdb6b6438695701d79382fad1889af9b3
SSDEEP

768:Gy77RVRLRniwxqsQoMWtBj88s2fJQBaoPPorKgpSgO:GyJVR9iwxqsQ0tBA2feHHorvSg

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2336	msdtk.exe

Loads dropped DLL 3 IoCs

pid	Process
2912	ac667dda38fcc71bda24847c0ef0394a_JaffaCakes118.exe
2912	ac667dda38fcc71bda24847c0ef0394a_JaffaCakes118.exe
2336	msdtk.exe

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2912-0-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/files/0x0008000000016105-7.dat	upx
behavioral1/memory/2912-12-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/memory/2336-15-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2912-6-0x00000000003E0000-0x00000000003F1000-memory.dmp	upx
behavioral1/memory/2336-17-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2336-19-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2336-21-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2336-23-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2336-25-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2336-27-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2336-29-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2336-33-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2336-35-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2336-37-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2336-39-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2336-41-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2336-43-0x0000000000400000-0x0000000000411000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 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\NvDtkWiz = "C:\\Windows\\SysWOW64\\msdtk.exe"	msdtk.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\hooklib.dll	ac667dda38fcc71bda24847c0ef0394a_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\msdtk.exe	ac667dda38fcc71bda24847c0ef0394a_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\hook.dat	msdtk.exe

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 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	ac667dda38fcc71bda24847c0ef0394a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdtk.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2336	msdtk.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 2336	2912	ac667dda38fcc71bda24847c0ef0394a_JaffaCakes118.exe	30
PID 2912 wrote to memory of 2336	2912	ac667dda38fcc71bda24847c0ef0394a_JaffaCakes118.exe	30
PID 2912 wrote to memory of 2336	2912	ac667dda38fcc71bda24847c0ef0394a_JaffaCakes118.exe	30
PID 2912 wrote to memory of 2336	2912	ac667dda38fcc71bda24847c0ef0394a_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\ac667dda38fcc71bda24847c0ef0394a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ac667dda38fcc71bda24847c0ef0394a_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Windows\SysWOW64\msdtk.exe
  "C:\Windows\system32\msdtk.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2336

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 Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\hooklib.dll

Filesize
15KB

MD5
ddc1f0fb013c647c37f2720c6c2ff64f

SHA1
0ed91ed9229932e7e2e5829840c42fa804690231

SHA256
b99a397fc8663720306c1e43e795fcfe1bd6a497f4402728c87d8b45e8d9f42d

SHA512
2f7e9b1bb39d36220a54f8394234d9aa800ad82a7467e6f054666d6950d808a0d887349e5433cac3b4e13bf3333b35d2f4c44b31345dff02456c64bdb8b7e9ac

Download Submit
\Windows\SysWOW64\msdtk.exe

Filesize
15KB

MD5
175a8dd4cc52642a709812886b83f023

SHA1
85ef84f534201dc3e31f332b00311ab829e2fd7e

SHA256
cea256b7e43695220c005d808a387b0ce124b697be4ac9fe0b971172087a0bae

SHA512
4ad0756a6bf9b1eef21562a2b1be11d9712b69a852357682f222e5b1b375224477db032d0dade475740a1612e69d7923dba41cac645da8668284c7932f18cd96

Download Submit
memory/2336-23-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2336-25-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2336-43-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2336-41-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2336-17-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2336-18-0x0000000000020000-0x000000000002A000-memory.dmp

Filesize
40KB

Download
memory/2336-19-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2336-21-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2336-39-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2336-15-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2336-27-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2336-29-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2336-33-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2336-35-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2336-37-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2912-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2912-12-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2912-6-0x00000000003E0000-0x00000000003F1000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads