evilnum | cff5ed4de201256678c7c068c1dbda5c47f4b322b618981693b1fd07a0ea7e68

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
15/07/2024, 07:30

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General

Target

48cf7f7b4180b1c4fb3ac3e149917130_JaffaCakes118.lnk
Size

1.2MB
MD5

48cf7f7b4180b1c4fb3ac3e149917130
SHA1

4186f3b6bd8225ede814047952e1e0f0f450faf7
SHA256

cff5ed4de201256678c7c068c1dbda5c47f4b322b618981693b1fd07a0ea7e68
SHA512

59c5cef7739e1ee8d5607f5d8cc0c53690bbfe72186cc313b038b43bd14a7bcc5662fe9b3230150175df284d2629ba979033eb01288deb76e8fbf7a154057b85
SSDEEP

24576:X42VC/nwI01fjjftIf2T6amcOZiZ1t+vk3gY1J56cVoKt8hyeu2:XXQ/nfUjftIuT/mW1t0k3gY1ZtYyen

Score

10^/10

evilnum execution trojan

Malware Config

Signatures

Evilnum
A malware family with multiple components distributed through LNK files.
trojan evilnum

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-1-5-21-1705699165-553239100-4129523827-1000\Control Panel\International\Geo\Nation	cmd.exe

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 1624	1268	cmd.exe	84
PID 1268 wrote to memory of 1624	1268	cmd.exe	84
PID 1624 wrote to memory of 452	1624	cmd.exe	85
PID 1624 wrote to memory of 452	1624	cmd.exe	85
PID 1624 wrote to memory of 4748	1624	cmd.exe	86
PID 1624 wrote to memory of 4748	1624	cmd.exe	86
PID 1624 wrote to memory of 3020	1624	cmd.exe	88
PID 1624 wrote to memory of 3020	1624	cmd.exe	88

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\48cf7f7b4180b1c4fb3ac3e149917130_JaffaCakes118.lnk
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c path=C:\Windows\system32&move "JointAccountDCS.pdf.lnk " "C:\Users\Admin\AppData\Local\Temp\1.lnk"&type "C:\Users\Admin\AppData\Local\Temp\1.lnk"|find "END2">"C:\Users\Admin\AppData\Local\Temp\0.js"&wscript "C:\Users\Admin\AppData\Local\Temp\0.js"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1624
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /S /D /c" type "C:\Users\Admin\AppData\Local\Temp\1.lnk""
    3⤵
    PID:452
- - C:\Windows\system32\find.exe
    find "END2"
    3⤵
    PID:4748
- - C:\Windows\system32\wscript.exe
    wscript "C:\Users\Admin\AppData\Local\Temp\0.js"
    3⤵
    PID:3020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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