d2b0b88a263ca79cf5de7a454f7111df4a49afc548c773553569ae9477f8e708

General

Target

ba2ff4db21ff6ff028d09dda59220766_JaffaCakes118.exe
Size

192KB
MD5

ba2ff4db21ff6ff028d09dda59220766
SHA1

3a72544ad62019bb7df5dd0cc558457df92001d1
SHA256

d2b0b88a263ca79cf5de7a454f7111df4a49afc548c773553569ae9477f8e708
SHA512

00dd0f73862ff0565b514c9f3dc549066825ede58190a2958b6c63a47d65835668c009249896f2b3f7c7c250e320860052b6c13c3f699aa00e28937a2c9d6000
SSDEEP

3072:qsT6PWSg4d4Fq7YAjsuwf0UbaxLAFE/qJJwCh/Myqt:jePW+d4Fq7YYsuwf/FKqJJV

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1392	esplorer.exe

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\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Klass = "C:\\Windows\\Rundll32.exe\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0.exe"	esplorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Klass = "C:\\Windows\\explorer.exe\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0.exe"	esplorer.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\name	esplorer.exe
File opened for modification	\??\c:\windows\vData.txt	esplorer.exe
File opened for modification	C:\Windows\name	ba2ff4db21ff6ff028d09dda59220766_JaffaCakes118.exe
File opened for modification	C:\Windows\esplorer.exe	ba2ff4db21ff6ff028d09dda59220766_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	ba2ff4db21ff6ff028d09dda59220766_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	esplorer.exe

Checks processor information in registry 2 TTPs 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ba2ff4db21ff6ff028d09dda59220766_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	ba2ff4db21ff6ff028d09dda59220766_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	esplorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	esplorer.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2780	ba2ff4db21ff6ff028d09dda59220766_JaffaCakes118.exe
1392	esplorer.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2780 wrote to memory of 1392	2780	ba2ff4db21ff6ff028d09dda59220766_JaffaCakes118.exe	86
PID 2780 wrote to memory of 1392	2780	ba2ff4db21ff6ff028d09dda59220766_JaffaCakes118.exe	86
PID 2780 wrote to memory of 1392	2780	ba2ff4db21ff6ff028d09dda59220766_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\ba2ff4db21ff6ff028d09dda59220766_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ba2ff4db21ff6ff028d09dda59220766_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2780
- C:\Windows\esplorer.exe
  C:\Windows\esplorer.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious use of SetWindowsHookEx
  PID:1392

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

Query Registry

1

T1012

System Information Discovery

1

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

C:\Windows\esplorer.exe

Filesize
192KB

MD5
ba2ff4db21ff6ff028d09dda59220766

SHA1
3a72544ad62019bb7df5dd0cc558457df92001d1

SHA256
d2b0b88a263ca79cf5de7a454f7111df4a49afc548c773553569ae9477f8e708

SHA512
00dd0f73862ff0565b514c9f3dc549066825ede58190a2958b6c63a47d65835668c009249896f2b3f7c7c250e320860052b6c13c3f699aa00e28937a2c9d6000

Download Submit
C:\Windows\name

Filesize
3B

MD5
03c2e7e41ffc181a4e84080b4710e81e

SHA1
6403f2b7eb2aaafe6de34cbf2a029b01afebc512

SHA256
18fdd549b2ed367ac0c74cbec1214644728515b30edbcb78e7d322757a7c8359

SHA512
6d6ec1f3bc0516934e6a101f209541eba6ae5a91e366bccb4494a0bc249c45521bc03ddbf186bac8fea25c68f73ceecef0463681e829986afc039026136c45b6

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads