3caa31ea631ee68d8cc7a98d331d1fc2a5d2774b133e45bad4fc81ae4c675776

Analysis

max time kernel
141s
max time network
134s
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 10:04

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General

Target

6f218b9a4dd793bc86c851e06b12c65e_JaffaCakes118.exe
Size

994KB
MD5

6f218b9a4dd793bc86c851e06b12c65e
SHA1

075981cf90fa7e1e6dbeddc28f035741485e7e77
SHA256

3caa31ea631ee68d8cc7a98d331d1fc2a5d2774b133e45bad4fc81ae4c675776
SHA512

772817c3eb98281dedd426d8f89b99587aa26d0862b2eaf9bce50b4c9a2d5e1396d099f7522984aab9901485feadc9a666b03471488078ce03d9c8fcb8b7f802
SSDEEP

24576:58+/xmZPxY7+H0iwQPZN0AFGK9pLwqdzkp7Sn/3b2RwEPWsuJjxm4:z54Y7kjv0aGKHLwgzBn/r+YsuJVm4

Score

8^/10

discovery persistence upx

Malware Config

Signatures

Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{058hafc0-936f-11d3-8101-0095276c5e3a}	winlogon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{058hafc0-936f-11d3-8101-0095276c5e3a}\StubPath = "C:\\Windows\\winlogon.exe"	winlogon.exe

Executes dropped EXE 1 IoCs

pid	Process
3524	winlogon.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4696-0-0x0000000000400000-0x0000000000545000-memory.dmp	upx
behavioral2/files/0x000b0000000234bd-4.dat	upx
behavioral2/memory/4696-8-0x0000000000400000-0x0000000000545000-memory.dmp	upx
behavioral2/memory/3524-9-0x0000000000400000-0x0000000000545000-memory.dmp	upx

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Winlogon = "C:\\Windows\\winlogon.exe"	winlogon.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2650514177-1034912467-4025611726-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Winlogon = "C:\\Windows\\winlogon.exe"	winlogon.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\winlogon.exe	6f218b9a4dd793bc86c851e06b12c65e_JaffaCakes118.exe
File opened for modification	C:\Windows\winlogon.exe	6f218b9a4dd793bc86c851e06b12c65e_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	6f218b9a4dd793bc86c851e06b12c65e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlogon.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4696	6f218b9a4dd793bc86c851e06b12c65e_JaffaCakes118.exe
3524	winlogon.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4696 wrote to memory of 3524	4696	6f218b9a4dd793bc86c851e06b12c65e_JaffaCakes118.exe	84
PID 4696 wrote to memory of 3524	4696	6f218b9a4dd793bc86c851e06b12c65e_JaffaCakes118.exe	84
PID 4696 wrote to memory of 3524	4696	6f218b9a4dd793bc86c851e06b12c65e_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\6f218b9a4dd793bc86c851e06b12c65e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6f218b9a4dd793bc86c851e06b12c65e_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4696
- C:\Windows\winlogon.exe
  C:\Windows\winlogon.exe
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  PID:3524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Registry Run Keys / Startup Folder

T1547.001

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

C:\Windows\winlogon.exe

Filesize
994KB

MD5
6f218b9a4dd793bc86c851e06b12c65e

SHA1
075981cf90fa7e1e6dbeddc28f035741485e7e77

SHA256
3caa31ea631ee68d8cc7a98d331d1fc2a5d2774b133e45bad4fc81ae4c675776

SHA512
772817c3eb98281dedd426d8f89b99587aa26d0862b2eaf9bce50b4c9a2d5e1396d099f7522984aab9901485feadc9a666b03471488078ce03d9c8fcb8b7f802

Download Submit
memory/3524-6-0x00000000009D0000-0x00000000009D1000-memory.dmp

Filesize
4KB

Download
memory/3524-9-0x0000000000400000-0x0000000000545000-memory.dmp

Filesize
1.3MB

Download
memory/3524-11-0x00000000009D0000-0x00000000009D1000-memory.dmp

Filesize
4KB

Download
memory/4696-0-0x0000000000400000-0x0000000000545000-memory.dmp

Filesize
1.3MB

Download
memory/4696-1-0x0000000000630000-0x0000000000631000-memory.dmp

Filesize
4KB

Download
memory/4696-8-0x0000000000400000-0x0000000000545000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads