d835a2a6a1c7a3a758e3d4f798440b3e439a2e5695d883683456105e392d0ef2

Analysis

max time kernel
150s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25-08-2024 20:13

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General

Target

c17ca653f7cbc0de9d5d1bf6d643e151_JaffaCakes118.exe
Size

79KB
MD5

c17ca653f7cbc0de9d5d1bf6d643e151
SHA1

97e6fdc64dd8f3cc246429fafb382da9c00287b6
SHA256

d835a2a6a1c7a3a758e3d4f798440b3e439a2e5695d883683456105e392d0ef2
SHA512

aa404186dbb86259aa80163a6cc0fa4c7b580e2334f0587db478ef4e23fcf2a6f281d2adc93cdc74ed571e52f7c31e240c0343c49e44fa2418813f1284f7089e
SSDEEP

1536:nQxqcQu0iQ0KsgFWq/fpZl9c4QFABNitT2xLoxqxSn1c:Q/030KtFpBZnc4IABNhxLVUnC

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\twext.exe,"	5fe6707.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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	c17ca653f7cbc0de9d5d1bf6d643e151_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1080	5fe6707.exe
1372	5fe6707.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x00080000000233d7-4.dat	upx
behavioral2/memory/1080-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1080-27-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\twext.exe	5fe6707.exe
File created	C:\Windows\SysWOW64\twext.exe	5fe6707.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1080 set thread context of 1372	1080	5fe6707.exe	88

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 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	5fe6707.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5fe6707.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c17ca653f7cbc0de9d5d1bf6d643e151_JaffaCakes118.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Local Settings	c17ca653f7cbc0de9d5d1bf6d643e151_JaffaCakes118.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2188	vlc.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1372	5fe6707.exe
1372	5fe6707.exe
1372	5fe6707.exe
1372	5fe6707.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2188	vlc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1372	5fe6707.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2188	vlc.exe
2188	vlc.exe
2188	vlc.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2188	vlc.exe
2188	vlc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1080	5fe6707.exe
2188	vlc.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1100 wrote to memory of 1080	1100	c17ca653f7cbc0de9d5d1bf6d643e151_JaffaCakes118.exe	86
PID 1100 wrote to memory of 1080	1100	c17ca653f7cbc0de9d5d1bf6d643e151_JaffaCakes118.exe	86
PID 1100 wrote to memory of 1080	1100	c17ca653f7cbc0de9d5d1bf6d643e151_JaffaCakes118.exe	86
PID 1100 wrote to memory of 2188	1100	c17ca653f7cbc0de9d5d1bf6d643e151_JaffaCakes118.exe	87
PID 1100 wrote to memory of 2188	1100	c17ca653f7cbc0de9d5d1bf6d643e151_JaffaCakes118.exe	87
PID 1080 wrote to memory of 1372	1080	5fe6707.exe	88
PID 1080 wrote to memory of 1372	1080	5fe6707.exe	88
PID 1080 wrote to memory of 1372	1080	5fe6707.exe	88
PID 1080 wrote to memory of 1372	1080	5fe6707.exe	88
PID 1080 wrote to memory of 1372	1080	5fe6707.exe	88
PID 1080 wrote to memory of 1372	1080	5fe6707.exe	88
PID 1080 wrote to memory of 1372	1080	5fe6707.exe	88
PID 1080 wrote to memory of 1372	1080	5fe6707.exe	88
PID 1080 wrote to memory of 1372	1080	5fe6707.exe	88
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5
PID 1372 wrote to memory of 612	1372	5fe6707.exe	5

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:612

C:\Users\Admin\AppData\Local\Temp\c17ca653f7cbc0de9d5d1bf6d643e151_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c17ca653f7cbc0de9d5d1bf6d643e151_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1100
- C:\Users\Admin\AppData\Local\Temp\5fe6707.exe
  "C:\Users\Admin\AppData\Local\Temp\5fe6707.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1080
- - C:\Users\Admin\AppData\Local\Temp\5fe6707.exe
    "C:\Users\Admin\AppData\Local\Temp\5fe6707.exe"
    3⤵
    - Modifies WinLogon for persistence
    - Executes dropped EXE
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1372
- C:\Program Files\VideoLAN\VLC\vlc.exe
  "C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\AppData\Local\Temp\5fe6860.avi"
  2⤵
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:2188

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

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\5fe6707.exe

Filesize
60KB

MD5
e47cd1c12aa05c7afe27136e3e7cd34a

SHA1
d93d0d92f8a7ef5bfb9095883051426229113693

SHA256
1d4e47835396873e1bb3fd00a517a4600428d76b4fc04357836df940102c8f1e

SHA512
1cc5519c3d15be11053308646956264e386375a102598889f11dc3bdc556ac95c2dbaea0d2a7b72c422e7247d7886a3400ec93ea5f71a1c61f42b31353abf282

Download Submit
C:\Users\Admin\AppData\Local\Temp\5fe6860.avi

Filesize
2B

MD5
9818af84da6f96579e99ed315f69e0c5

SHA1
7ecf16ebb75bea5bc8309fbecd3e3df799ab4371

SHA256
dfa3bde638cb08d781f46d978f471fe535a642cb24d408bcc486a67c819cc4e4

SHA512
1a5cf2ca1f7c50defc0af583f15e3d2b0e392e8886d39ce5b6d213ee8e01ee3c1131a901b393f05cb8c9ea412fc2598cdbf33dd895e2d284fb9c7dc6ca080aa1

Download Submit
memory/612-66-0x0000000005790000-0x00000000057B6000-memory.dmp

Filesize
152KB

Download
memory/612-62-0x0000000005760000-0x0000000005786000-memory.dmp

Filesize
152KB

Download
memory/612-91-0x0000000005880000-0x00000000058A6000-memory.dmp

Filesize
152KB

Download
memory/612-86-0x0000000005850000-0x0000000005876000-memory.dmp

Filesize
152KB

Download
memory/612-81-0x0000000005820000-0x0000000005846000-memory.dmp

Filesize
152KB

Download
memory/612-76-0x00000000057F0000-0x0000000005816000-memory.dmp

Filesize
152KB

Download
memory/612-71-0x00000000057C0000-0x00000000057E6000-memory.dmp

Filesize
152KB

Download
memory/612-36-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/612-42-0x00000000056A0000-0x00000000056C6000-memory.dmp

Filesize
152KB

Download
memory/612-46-0x00000000056D0000-0x00000000056F6000-memory.dmp

Filesize
152KB

Download
memory/612-52-0x0000000005700000-0x0000000005726000-memory.dmp

Filesize
152KB

Download
memory/612-56-0x0000000005730000-0x0000000005756000-memory.dmp

Filesize
152KB

Download
memory/1080-27-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1080-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1100-19-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/1372-29-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1372-23-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1372-25-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1372-20-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download