9640c5cd2a4ed2f87b2839dbcdbf0f6ee194a57fcc7bb15ba8448196019cd59e

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26/07/2024, 09:01

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General

Target

73651ca8937053081e5cd25360a76b15_JaffaCakes118.exe
Size

54KB
MD5

73651ca8937053081e5cd25360a76b15
SHA1

60d40328d879bbf820133f7a8845435856a654dc
SHA256

9640c5cd2a4ed2f87b2839dbcdbf0f6ee194a57fcc7bb15ba8448196019cd59e
SHA512

04da6aa2604e395eb6ebe481858dfb6f2e55bf24e333ec2c6eadcd5a0baafce7b87604d0e78a656eee4c95e8f1fab0cff9e99d9de49ece957f6acdf08e280827
SSDEEP

1536:wN/HvKdhMJfez2xbnDa0a9IncNgGwUM3yq:QHvKdhMp42xbmhIPUa

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\USER\S-1-5-21-2636447293-1148739154-93880854-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\73651ca8937053081e5cd25360a76b15_JaffaCakes118.exe"	73651ca8937053081e5cd25360a76b15_JaffaCakes118.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/672-3-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/672-4-0x0000000000400000-0x000000000041A000-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-1-5-21-2636447293-1148739154-93880854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\S12170101 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\73651ca8937053081e5cd25360a76b15_JaffaCakes118.exe"	73651ca8937053081e5cd25360a76b15_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	73651ca8937053081e5cd25360a76b15_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3492	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3492	taskkill.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 672 wrote to memory of 3492	672	73651ca8937053081e5cd25360a76b15_JaffaCakes118.exe	90
PID 672 wrote to memory of 3492	672	73651ca8937053081e5cd25360a76b15_JaffaCakes118.exe	90
PID 672 wrote to memory of 3492	672	73651ca8937053081e5cd25360a76b15_JaffaCakes118.exe	90

C:\Users\Admin\AppData\Local\Temp\73651ca8937053081e5cd25360a76b15_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\73651ca8937053081e5cd25360a76b15_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:672
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /F /IM explorer.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3492

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/672-0-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/672-1-0x0000000000403000-0x0000000000407000-memory.dmp

Filesize
16KB

Download
memory/672-2-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/672-3-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/672-4-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/672-5-0x0000000000403000-0x0000000000407000-memory.dmp

Filesize
16KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads