1d03483f93d3904400d5c6dc257545100594e4eff2f50ac124322ce1bb63e476

Analysis

max time kernel
140s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-09-2024 20:58

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General

Target

ee690d45c6c6dfda4f3770e11997cc80_JaffaCakes118.exe
Size

70KB
MD5

ee690d45c6c6dfda4f3770e11997cc80
SHA1

43a92e3c0d7de937233e2e1e9c41412440ec3e8b
SHA256

1d03483f93d3904400d5c6dc257545100594e4eff2f50ac124322ce1bb63e476
SHA512

027c9bc5ba1d532dc630c17d3eebc7971acb7e965051c9c219ffb932168d32f68616186ead7239e25923df15ec52ea319abac8e86501ea828af6f83645f4cbb3
SSDEEP

768:iOMyZ4uJDwuZHiu83fejzwLjmo8hrCv7/Dl0HLSf8tLBs5tc6Eq2mMLjHxXoiuLr:iqXJDzHirm/kKoW6Dl0HReaFRc

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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ee690d45c6c6dfda4f3770e11997cc80_JaffaCakes118.exe"	ee690d45c6c6dfda4f3770e11997cc80_JaffaCakes118.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2436-2-0x0000000000400000-0x000000000041E000-memory.dmp	upx
behavioral1/memory/2436-4-0x0000000000400000-0x000000000041E000-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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\S18416174 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ee690d45c6c6dfda4f3770e11997cc80_JaffaCakes118.exe"	ee690d45c6c6dfda4f3770e11997cc80_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	ee690d45c6c6dfda4f3770e11997cc80_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2320	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2320	taskkill.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2436 wrote to memory of 2320	2436	ee690d45c6c6dfda4f3770e11997cc80_JaffaCakes118.exe	30
PID 2436 wrote to memory of 2320	2436	ee690d45c6c6dfda4f3770e11997cc80_JaffaCakes118.exe	30
PID 2436 wrote to memory of 2320	2436	ee690d45c6c6dfda4f3770e11997cc80_JaffaCakes118.exe	30
PID 2436 wrote to memory of 2320	2436	ee690d45c6c6dfda4f3770e11997cc80_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\ee690d45c6c6dfda4f3770e11997cc80_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ee690d45c6c6dfda4f3770e11997cc80_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2436
- 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:2320

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/2436-0-0x0000000000409000-0x000000000040D000-memory.dmp

Filesize
16KB

Download
memory/2436-1-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2436-2-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2436-3-0x0000000000409000-0x000000000040D000-memory.dmp

Filesize
16KB

Download
memory/2436-4-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads