75d0ca6f822b33bef79cff448874ef16e7e2cf53fa4faeb5653ad881c63c22ba

Analysis

max time kernel
140s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/01/2025, 11:00

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General

Target
JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe
Size 136KB
Sample250119-m4d7jsvjet
SHA256 75d0ca6f822b33bef79cff448874ef16e7e2cf53fa4faeb5653ad881c63c22ba
MD5 c5dab2d7cd433d529f5a59ef860851cf
SHA1 8a3324e594d4cde1b93ed0f78f1c8511e0f4f840
SHA512 c102f1572df0778c9d270d8d7531e122dd8cec23bf5d540e35e003d9fa78e04c35522379692b58e97723ad45e09e405eb06be050ce527c3af93268be781919f8
SSDEEP 3072:62d7e0iatjYzaoGkxoNxwH1NhQ6mecIz0:6eS0iojYzaoz8xwXhho
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

discovery persistence spyware stealer 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 = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2736-2-0x0000000000400000-0x000000000045D000-memory.dmp	upx
behavioral1/memory/2812-5-0x0000000000400000-0x000000000045D000-memory.dmp	upx
behavioral1/memory/2812-7-0x0000000000400000-0x000000000045D000-memory.dmp	upx
behavioral1/memory/2736-10-0x0000000000400000-0x000000000045D000-memory.dmp	upx
behavioral1/memory/2736-76-0x0000000000400000-0x000000000045D000-memory.dmp	upx
behavioral1/memory/2268-80-0x0000000000400000-0x000000000045D000-memory.dmp	upx
behavioral1/memory/2268-78-0x0000000000400000-0x000000000045D000-memory.dmp	upx
behavioral1/memory/2736-165-0x0000000000400000-0x000000000045D000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 3 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	JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 2812	2736	JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe	30
PID 2736 wrote to memory of 2812	2736	JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe	30
PID 2736 wrote to memory of 2812	2736	JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe	30
PID 2736 wrote to memory of 2812	2736	JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe	30
PID 2736 wrote to memory of 2268	2736	JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe	32
PID 2736 wrote to memory of 2268	2736	JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe	32
PID 2736 wrote to memory of 2268	2736	JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe	32
PID 2736 wrote to memory of 2268	2736	JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c5dab2d7cd433d529f5a59ef860851cf.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2268

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

341F.DDF

Path C:\Users\Admin\AppData\Roaming\341F.DDF
Size 300B
SHA256 2c3e5dd197a4d105b06ea49e19ae084d23b7fa3e9037f4918ce62439de46578a
MD5 617affc2f882c05077ac645b8a00957c
SHA1 725f5cbc0078ee22b61110b5d504e64c5283d5dc
SHA512 af20630e3017ab7bc85758d19bd74a1897e01d678edfbac7eb0dc4a4a078c3a514ca4733bf683074668e9ac05aa34d8c0778f165f99c930671ced12673fe1095
MD5 SHA1 SHA512

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341F.DDF

Path C:\Users\Admin\AppData\Roaming\341F.DDF
Size 1KB
SHA256 ac9e4a3480a9fdee29a83e7ca41fde0db0d2b173360a8b80edcdc5ee880728f3
MD5 bedc78b40379ea94d45cfeb38caec8fe
SHA1 ea1d376ae364f74ffee6548e6918039e322a8e04
SHA512 277e88794923d2e3f5f3751cafe65ef9af3dfcbb9f0537834b06249cb88c1f937de79ddc02153428e826aa4fc112223e18227c4cfab6fb57a9c96de8753db213
MD5 SHA1 SHA512

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341F.DDF

Path C:\Users\Admin\AppData\Roaming\341F.DDF
Size 696B
SHA256 26433519de38e5c724a08b5388662b142a40f6bea888cc6fde9fcc076bb803b0
MD5 e947aa3c8730c3151a6b9b94f0c458c7
SHA1 a7c4b53c57f267eaa2ccb617f5a5a76f74b34189
SHA512 ef0eadf629f1c6fb299120e3637f87236edbb82571680e9e4c15e56561075479e026c5befed4743263e66f19401ff3d6d8d454c555656e6e21714a88f4a593e3
MD5 SHA1 SHA512

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memory/2268-80-0x0000000000400000-0x000000000045D000-memory.dmp

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memory/2268-78-0x0000000000400000-0x000000000045D000-memory.dmp

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memory/2736-1-0x0000000000400000-0x000000000045D000-memory.dmp

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memory/2736-2-0x0000000000400000-0x000000000045D000-memory.dmp

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memory/2736-10-0x0000000000400000-0x000000000045D000-memory.dmp

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memory/2736-76-0x0000000000400000-0x000000000045D000-memory.dmp

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memory/2736-165-0x0000000000400000-0x000000000045D000-memory.dmp

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memory/2812-5-0x0000000000400000-0x000000000045D000-memory.dmp

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memory/2812-7-0x0000000000400000-0x000000000045D000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads