a1678148c323271c3b8c4a0bd215608ec6dd3391bd98fd4a6cc0eea0d05906a4

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-08-2024 16:08

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General

Target

b420a3be38b75189102a8a11ef62b8e4_JaffaCakes118.exe
Size

36KB
MD5

b420a3be38b75189102a8a11ef62b8e4
SHA1

2207991361f096a14dc729213ac66eaaf4100afb
SHA256

a1678148c323271c3b8c4a0bd215608ec6dd3391bd98fd4a6cc0eea0d05906a4
SHA512

f3d9f9c03ce2c6c38ddb22a1e45e9b7fde2480e7f105e58d317b5ebe0e2756fdb0525f0c03ae35a7db51045cea59e0d53af46fcea4a3350801bb38f873ce1e58
SSDEEP

768:hkeurWxdeYtfLebPric/fCjuJBvic090ap:H1deYArXnCjuviP3

Score

10^/10

defense_evasion discovery persistence

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 = "C:\\Windows\\system32\\6154e506.exe,"	b420a3be38b75189102a8a11ef62b8e4_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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	b420a3be38b75189102a8a11ef62b8e4_JaffaCakes118.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004
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	b420a3be38b75189102a8a11ef62b8e4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1184 wrote to memory of 5112	1184	b420a3be38b75189102a8a11ef62b8e4_JaffaCakes118.exe	88
PID 1184 wrote to memory of 5112	1184	b420a3be38b75189102a8a11ef62b8e4_JaffaCakes118.exe	88
PID 1184 wrote to memory of 5112	1184	b420a3be38b75189102a8a11ef62b8e4_JaffaCakes118.exe	88

C:\Users\Admin\AppData\Local\Temp\b420a3be38b75189102a8a11ef62b8e4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b420a3be38b75189102a8a11ef62b8e4_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\B420A3~1.EXE >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5112

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

Indicator Removal

T1070

File Deletion

T1070.004

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

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Downloads

memory/1184-0-0x0000000002150000-0x0000000002154000-memory.dmp

Filesize
16KB

Download
memory/1184-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1184-4-0x0000000002150000-0x0000000002154000-memory.dmp

Filesize
16KB

Download
memory/1184-3-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads