0ca99af1e9257668d0a72dc5eb180e2eee93a397cfddbdc54a870d674c95ea10

General

Target

3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe
Size

156KB
MD5

3d98fab958691781b390e4857856b5b6
SHA1

eae3d8a704b5451712702fd08c06ce35b0b78c0b
SHA256

0ca99af1e9257668d0a72dc5eb180e2eee93a397cfddbdc54a870d674c95ea10
SHA512

48c11d555ba7ebd6614090e07ce9b1fad13040655cf3328f99b356eb3a891948c74c672ee4389f15a1772d56ad37f602b413cd99389177821fc4939225fd84ca
SSDEEP

3072:OiOiZBXs5WeEyE9MoEI07bXe5iT2Lbl0BOsp8AK:U5ZzE9VEIubMu2F0BOspa

Score

10^/10

discovery evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\riumoo.lnk	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
2384	riumoo.exe

Loads dropped DLL 8 IoCs

pid	Process
720	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe
720	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe
720	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe
1284	WerFault.exe
1284	WerFault.exe
1284	WerFault.exe
1284	WerFault.exe
1284	WerFault.exe

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\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\riumoo = "C:\\Users\\Admin\\oomuir\\riumoo.exe /y"	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2032 set thread context of 720	2032	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	30

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1284	2384	WerFault.exe	31

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	riumoo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PhotoScreensaver.scr

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
720	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2032	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe
720	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe
2384	riumoo.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 720	2032	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	30
PID 2032 wrote to memory of 720	2032	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	30
PID 2032 wrote to memory of 720	2032	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	30
PID 2032 wrote to memory of 720	2032	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	30
PID 2032 wrote to memory of 720	2032	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	30
PID 2032 wrote to memory of 720	2032	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	30
PID 2032 wrote to memory of 720	2032	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	30
PID 2032 wrote to memory of 720	2032	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	30
PID 2032 wrote to memory of 720	2032	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	30
PID 2032 wrote to memory of 720	2032	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	30
PID 720 wrote to memory of 2384	720	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	31
PID 720 wrote to memory of 2384	720	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	31
PID 720 wrote to memory of 2384	720	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	31
PID 720 wrote to memory of 2384	720	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	31
PID 720 wrote to memory of 380	720	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	32
PID 720 wrote to memory of 380	720	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	32
PID 720 wrote to memory of 380	720	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	32
PID 720 wrote to memory of 380	720	3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe	32
PID 2384 wrote to memory of 1284	2384	riumoo.exe	33
PID 2384 wrote to memory of 1284	2384	riumoo.exe	33
PID 2384 wrote to memory of 1284	2384	riumoo.exe	33
PID 2384 wrote to memory of 1284	2384	riumoo.exe	33

C:\Users\Admin\AppData\Local\Temp\3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Users\Admin\AppData\Local\Temp\3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\3d98fab958691781b390e4857856b5b6_JaffaCakes118.exe"78
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Drops startup file
  - Loads dropped DLL
  - Adds Run key to start application
  - Maps connected drives based on registry
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:720
- - C:\Users\Admin\oomuir\riumoo.exe
    "C:\Users\Admin\oomuir\riumoo.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2384
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 224
      4⤵
      Loads dropped DLL
      Program crash
      PID:1284
- - C:\Windows\SysWOW64\PhotoScreensaver.scr
    "C:\Windows\System32\PhotoScreensaver.scr" /S
    3⤵
    - System Location Discovery: System Language Discovery
    PID:380

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

Hide Artifacts

1

T1564

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\oomuir\riumoo.exe

Filesize
156KB

MD5
3d98fab958691781b390e4857856b5b6

SHA1
eae3d8a704b5451712702fd08c06ce35b0b78c0b

SHA256
0ca99af1e9257668d0a72dc5eb180e2eee93a397cfddbdc54a870d674c95ea10

SHA512
48c11d555ba7ebd6614090e07ce9b1fad13040655cf3328f99b356eb3a891948c74c672ee4389f15a1772d56ad37f602b413cd99389177821fc4939225fd84ca

Download Submit
memory/720-33-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/720-35-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/720-23-0x00000000036C0000-0x000000000417A000-memory.dmp

Filesize
10.7MB

Download
memory/720-30-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/720-31-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/720-2-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/720-34-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/720-4-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/720-37-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/720-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/720-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/720-42-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/720-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/720-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads