skuld | 06c02f85d69aa4f5afb0b214f81960fcd30c76766a7d29df79d6637205af7f3c

Analysis

max time kernel
16s
max time network
18s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
25-07-2024 10:18

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

skuld.sfx.exe
Size

3.7MB
MD5

e07476e550f7c3ccb7f5e30f29a88d05
SHA1

2a1ad24b3cda146a9de84e41f3df017215fa7a72
SHA256

06c02f85d69aa4f5afb0b214f81960fcd30c76766a7d29df79d6637205af7f3c
SHA512

741c1ee74ae84b389cc2fb68b138277c8b9b3dd78bc36e3c6f0e0a322136321a7e4968981d2508714efa346b039bc61042176e37a3efab87ad7efc7b09eafb52
SSDEEP

98304:txMmfMvWN/2VT3rUUxq0mgc3LjqlQUQHFl2zSwi:0Z+OT7JVE/Vl2k

Score

10^/10

skuld discovery stealer

Malware Config

Extracted

Family

skuld

https://discord.com/api/webhooks/1264686401501401089/XAi_UkMq6Piek4Byxf_KJY-VIOIPpUoXKEe5FthGsd-Jo_7aylbLmrAPLf0nBSrgFfAx

Signatures

Skuld stealer
An info stealer written in Go lang.
stealer skuld

Executes dropped EXE 1 IoCs

pid	Process
2064	skuld.exe

Loads dropped DLL 3 IoCs

pid	Process
2384	skuld.sfx.exe
2384	skuld.sfx.exe
2320	Process not Found

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 1 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	skuld.sfx.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 2064	2384	skuld.sfx.exe	30
PID 2384 wrote to memory of 2064	2384	skuld.sfx.exe	30
PID 2384 wrote to memory of 2064	2384	skuld.sfx.exe	30
PID 2384 wrote to memory of 2064	2384	skuld.sfx.exe	30

C:\Users\Admin\AppData\Local\Temp\skuld.sfx.exe
"C:\Users\Admin\AppData\Local\Temp\skuld.sfx.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\skuld.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\skuld.exe"
  2⤵
  - Executes dropped EXE
  PID:2064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\RarSFX0\skuld.exe

Filesize
9.5MB

MD5
8a5e259fcae4149b4506ef7101433e7e

SHA1
8967da4ff877c87ccbd545e22631a004bb64f57a

SHA256
5af25e4db8592f89856ed609d748d51abee8666c3c545fa3c9aa26198a37fac7

SHA512
1f3a9683f4d2b922a96546f8d72d65932ca237364c805a6790376ae18c340e6ff526ed92c8268c7490bc5333723b8100c52cacfbc254395f5f066e8eb62fd8dd

Download Submit