Overview

overview

10

Static

static

Set_up_Yuk...it.exe

windows7-x64

10

Set_up_Yuk...it.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Set_up_Yuki_x64_bit.exe

  • Size

    2.4MB

  • Sample

    221116-wr6kpscc72

  • MD5

    715762e2c5e6f330e375f900bf37250b

  • SHA1

    4ff0aa59b204982a146bf282a77f1919233d72b5

  • SHA256

    2abdb6ee06f2e7eea7cce7258e665a92f1b4cb825c4635096da785e2eb1de377

  • SHA512

    993b8cae22da78d98d84508c77926ddc558f8e5f56109933fb04620825cb8dba8b4622ea8fadcb15263f10dfa4152054314ce4fb553511b8175ab5df3a3cf02c

  • SSDEEP

    24576:puT+E/uX1eJzBECjwnnzCBQaPPPg6FRB6nyNP6kVU+UW40:e+8BECjwnzCBQaZx6nyNPLU+UF0

Score
10/10
vidar1325discoveryspywarestealerupx

Malware Config

Extracted

Family

vidar

Version

55.7

Botnet

1325

C2

https://t.me/deadftx

https://www.ultimate-guitar.com/u/smbfupkuhrgc1
Attributes
  • profile_id

    1325

Targets

    • Target

      Set_up_Yuki_x64_bit.exe

    • Size

      2.4MB

    • MD5

      715762e2c5e6f330e375f900bf37250b

    • SHA1

      4ff0aa59b204982a146bf282a77f1919233d72b5

    • SHA256

      2abdb6ee06f2e7eea7cce7258e665a92f1b4cb825c4635096da785e2eb1de377

    • SHA512

      993b8cae22da78d98d84508c77926ddc558f8e5f56109933fb04620825cb8dba8b4622ea8fadcb15263f10dfa4152054314ce4fb553511b8175ab5df3a3cf02c

    • SSDEEP

      24576:puT+E/uX1eJzBECjwnnzCBQaPPPg6FRB6nyNP6kVU+UW40:e+8BECjwnzCBQaZx6nyNPLU+UF0

    Score
    10/10
    vidar1325discoveryspywarestealerupx

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

      stealervidar

    • Downloads MZ/PE file

    • Executes dropped EXE

    • UPX packed file

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

      upx

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Accesses 2FA software files, possible credential harvesting

      spywarestealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

3
T1005

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Tasks