6958d497240bb6afde3d8108d18c2ae985342e9563428e7ddb532ede97ed8621

Analysis

max time kernel
137s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
25/07/2024, 13:02

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

6faf1ebcce24c6a25d3d534eb8b55979_JaffaCakes118.exe
Size

207KB
MD5

6faf1ebcce24c6a25d3d534eb8b55979
SHA1

62acb0ec801d4bf210f437a65ae10b16fe962414
SHA256

6958d497240bb6afde3d8108d18c2ae985342e9563428e7ddb532ede97ed8621
SHA512

46a3464b0c14e19b938cf898712c575bb0cf6db31fbe9f10800c89307148ff68d2a095e9d1b0b4201c80cb9d3432fd3dc6cdb57ef79ebda1132dc0c238bcd3a9
SSDEEP

6144:NdSfIrsmZ9BOuiIYNI7TYmUZ/ElE53CqZU5WpvqL:2It/iH0TYmllPevqL

Score

10^/10

discovery persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,riodrv.exe"	6faf1ebcce24c6a25d3d534eb8b55979_JaffaCakes118.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\Control Panel\International\Geo\Nation	6faf1ebcce24c6a25d3d534eb8b55979_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
1952	riodrv.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3792-0-0x0000000000400000-0x0000000000487000-memory.dmp	upx
behavioral2/files/0x00080000000234be-6.dat	upx
behavioral2/memory/3792-13-0x0000000000400000-0x0000000000487000-memory.dmp	upx
behavioral2/memory/1952-11-0x0000000000400000-0x0000000000487000-memory.dmp	upx
behavioral2/memory/1952-16-0x0000000000400000-0x0000000000487000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\riodrv.exe	6faf1ebcce24c6a25d3d534eb8b55979_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\riodrv.exe	6faf1ebcce24c6a25d3d534eb8b55979_JaffaCakes118.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	riodrv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6faf1ebcce24c6a25d3d534eb8b55979_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3792 wrote to memory of 1952	3792	6faf1ebcce24c6a25d3d534eb8b55979_JaffaCakes118.exe	87
PID 3792 wrote to memory of 1952	3792	6faf1ebcce24c6a25d3d534eb8b55979_JaffaCakes118.exe	87
PID 3792 wrote to memory of 1952	3792	6faf1ebcce24c6a25d3d534eb8b55979_JaffaCakes118.exe	87

C:\Users\Admin\AppData\Local\Temp\6faf1ebcce24c6a25d3d534eb8b55979_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6faf1ebcce24c6a25d3d534eb8b55979_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3792
- C:\Windows\SysWOW64\riodrv.exe
  "C:\Windows\system32\riodrv.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1952

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\riodrv.exe

Filesize
207KB

MD5
609d98c73ee3abda3b77552ed22c2812

SHA1
16a8bd24ed3cb4cd10b7353612e5b67775ed403f

SHA256
cc98cacf0dfad54e409186d0526f17c84eaa9ee1e608aabbbcd0bde9ab74d33f

SHA512
eec691acb340282d15595c75292aa92ec324b8ba137174d802c07a4a64c92c33e04d2bf884d6959605f5356ba70db1d3488e44eab1f83f02d2683d89157af3ac

Download Submit
memory/1952-11-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/1952-14-0x0000000000AB0000-0x0000000000AB1000-memory.dmp

Filesize
4KB

Download
memory/1952-16-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/3792-0-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/3792-1-0x0000000002430000-0x0000000002431000-memory.dmp

Filesize
4KB

Download
memory/3792-13-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads