0ca06ddbae36801f7a94d618c56d6aac29d8315f4c5e7e3d1989b06d743808dc

General

Target

ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe
Size

15KB
MD5

ee60fd6c8f3bd58d6deb3d70099e5ce4
SHA1

b0f3c734f1379492a85b74a38189f8cee5ef7dbd
SHA256

0ca06ddbae36801f7a94d618c56d6aac29d8315f4c5e7e3d1989b06d743808dc
SHA512

27c0eb5355e6134a5a9cd798f14eed28e8160d72069a1b2886cc9fc74895d5ff2042c0ecc7c713f338ac483461b60182c672c42369543b631d754ec6acc1e17a
SSDEEP

384:aIAfI4N/o8vySk+cYH0rp7Bp4uXA3rOFr+4OpK/Lzl+YNVU6IS:aBf5JxyX2UpXA3rOFr+4EQnIuiw

Score

10^/10

discovery persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 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\ShellServiceObjectDelayLoad\grmsmwbd.dll = "{F0930A2F-D971-4828-8209-B7DFD266ED44}"	ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3000	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
2684	ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\grmsmwbd.tmp	ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\grmsmwbd.tmp	ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\grmsmwbd.nls	ee60fd6c8f3bd58d6deb3d70099e5ce4_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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F0930A2F-D971-4828-8209-B7DFD266ED44}	ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F0930A2F-D971-4828-8209-B7DFD266ED44}\InProcServer32	ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F0930A2F-D971-4828-8209-B7DFD266ED44}\InProcServer32\ = "C:\\Windows\\SysWow64\\grmsmwbd.dll"	ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F0930A2F-D971-4828-8209-B7DFD266ED44}\InProcServer32\ThreadingModel = "Apartment"	ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2684	ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2684	ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe
2684	ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe
2684	ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 3000	2684	ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe	31
PID 2684 wrote to memory of 3000	2684	ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe	31
PID 2684 wrote to memory of 3000	2684	ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe	31
PID 2684 wrote to memory of 3000	2684	ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ee60fd6c8f3bd58d6deb3d70099e5ce4_JaffaCakes118.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\10C3.tmp.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3000

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:\Users\Admin\AppData\Local\Temp\10C3.tmp.bat

Filesize
207B

MD5
a9e2e40ff9ef3c50484d7644e55c7274

SHA1
09682fa108f78769fe27a86589e55d2cd00ef750

SHA256
d8a5e09e82ff6c3878f778a48cf59cd6926b64f55ff459390ea9f15c17f594f5

SHA512
34c180728a4ca546e8f5ef19acad262e362ac32d6d3ae84505c53024f246c0baedce72a7bfa138686cd86b2bb1b97d06f38d3f1c3f53493432516d0a39adac17

Download Submit
C:\Windows\SysWOW64\grmsmwbd.nls

Filesize
428B

MD5
be481e300e9c2cc623276f4980c0f4c6

SHA1
0981a6e2c88ef3feecbd0fd9aa4363d75c32e3e6

SHA256
470f2c185781d10f37a8440a10e64ce81a13d4f73889a481969d50ade4235424

SHA512
71a5eaf14f463640be444cf23f26b1a76b5c1ad1a9d06c26aa688c21ea8718006593a7359d322798d35830b964dab49f8e4fb6a8134eee270b218f926ffac79b

Download Submit
\Windows\SysWOW64\grmsmwbd.dll

Filesize
2.4MB

MD5
7926b892a5cd5d2be3c5e43cbb439e44

SHA1
e266da6425f3c5f982b113a8f885544117d75540

SHA256
eeee2bad00a17033d87f330945eea0f55f518078ec8898bbf4b4182515abe30d

SHA512
5ce4d94f2154f39ff334038e3e45ade52bf8f9b2278dee9b758cb283f460e96c79c411fcf9f4a33639f4ba5ecc79f4530ad7f6f45ffd5b4749aa592fa45d5c3e

Download Submit
memory/2684-16-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download
memory/2684-25-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads