420c29fb740d2dd36151487bffc032f18c9477e31ebb43dffe8767752f690015

General

Target

65391f818b128e1fb50dcbedb6547d0a_JaffaCakes118.exe
Size

317KB
MD5

65391f818b128e1fb50dcbedb6547d0a
SHA1

50b0cd1281fcd76b073c04c14a3d07f50f837d40
SHA256

420c29fb740d2dd36151487bffc032f18c9477e31ebb43dffe8767752f690015
SHA512

15e20ebbce825282f014ba99eda77735907ad5ed6d7c9f22f6e17cc2f2abc7467d5bccab56cdacad28d1c7f8170e3f61a21c7d6bd593e2175a44d654da6fd214
SSDEEP

6144:io2TqeC/4nXA13lwjbjHMGcnr6hDLCF1bzzFD5BrOSMInBOwUsD1N:ibbnX5Hrlcnr6hDLstzzYSMaBOwUsRN

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2440	nJkEaHj01828.exe

Executes dropped EXE 1 IoCs

pid	Process
2440	nJkEaHj01828.exe

Loads dropped DLL 2 IoCs

pid	Process
2448	65391f818b128e1fb50dcbedb6547d0a_JaffaCakes118.exe
2448	65391f818b128e1fb50dcbedb6547d0a_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2448-4-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral1/memory/2448-2-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral1/memory/2448-0-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral1/memory/2440-23-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral1/memory/2448-26-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral1/memory/2440-27-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral1/memory/2440-43-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral1/memory/2448-59-0x0000000000400000-0x00000000004B4000-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\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\nJkEaHj01828 = "C:\\ProgramData\\nJkEaHj01828\\nJkEaHj01828.exe"	nJkEaHj01828.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Internet Explorer\Main	nJkEaHj01828.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2448	65391f818b128e1fb50dcbedb6547d0a_JaffaCakes118.exe
Token: SeDebugPrivilege	2440	nJkEaHj01828.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2440	nJkEaHj01828.exe
2440	nJkEaHj01828.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2440	nJkEaHj01828.exe
2440	nJkEaHj01828.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2440	nJkEaHj01828.exe
2440	nJkEaHj01828.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2448 wrote to memory of 2440	2448	65391f818b128e1fb50dcbedb6547d0a_JaffaCakes118.exe	30
PID 2448 wrote to memory of 2440	2448	65391f818b128e1fb50dcbedb6547d0a_JaffaCakes118.exe	30
PID 2448 wrote to memory of 2440	2448	65391f818b128e1fb50dcbedb6547d0a_JaffaCakes118.exe	30
PID 2448 wrote to memory of 2440	2448	65391f818b128e1fb50dcbedb6547d0a_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\65391f818b128e1fb50dcbedb6547d0a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\65391f818b128e1fb50dcbedb6547d0a_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2448
- C:\ProgramData\nJkEaHj01828\nJkEaHj01828.exe
  "C:\ProgramData\nJkEaHj01828\nJkEaHj01828.exe" "C:\Users\Admin\AppData\Local\Temp\65391f818b128e1fb50dcbedb6547d0a_JaffaCakes118.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Adds Run key to start application
  - Modifies Internet Explorer settings
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:2440

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

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\nJkEaHj01828\nJkEaHj01828.exe

Filesize
317KB

MD5
28d4b1ea1a92ed5b30540adaa25ce122

SHA1
ce8128dccd8fd28ca816cb7af3578a89f1ff150a

SHA256
53dec800610e85fce006cd6b55e3c7a6e2398f089c08adfde82d1daa39116725

SHA512
11d37760511d9403845d75aaabc70ffd5ddae46f5f0d3b3ac1f8a19a9c896e325de47c76b8daa387e43e55e3121164d5732b19f6ea0766fadfbd58e909f4e352

Download Submit
memory/2440-27-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2440-17-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2440-22-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2440-23-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2440-43-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2448-2-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2448-0-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2448-3-0x0000000000403000-0x0000000000404000-memory.dmp

Filesize
4KB

Download
memory/2448-26-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2448-4-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2448-28-0x0000000000403000-0x0000000000404000-memory.dmp

Filesize
4KB

Download
memory/2448-59-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads