Overview

overview

10

Static

static

0c55d2f909...27.exe

windows7_x64

10

0c55d2f909...27.exe

windows10_x64

10

Analysis

  • max time kernel
    65s
  • max time network
    122s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    15-09-2021 14:31

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    0c55d2f909695e522759043833539287910b717860d22f1dbc007f2055a07127.exe

  • Size

    594KB

  • MD5

    c25627d082399616d43b9ff5c66de1df

  • SHA1

    0d31624229601b16d037e22f8a204d3701d7540a

  • SHA256

    0c55d2f909695e522759043833539287910b717860d22f1dbc007f2055a07127

  • SHA512

    ee854ed5325c8de6aa68c9a3625d0e56d37f40302f1525c31df75b273bc12c59a46bd5bd736400821596b8fe068ef12a67900abaf06dafdec98c7f891f6bca09

Score
10/10
vidar237discoveryspywarestealersuricata

Malware Config

Extracted

Family

vidar

Version

26.1

Botnet

237

C2

http://centos10.com/

Attributes
  • profile_id

    237

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

    stealervidar
  • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    suricata
  • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    suricata
  • Vidar Stealer 2 IoCs
    stealer
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    spywarestealer
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spywarestealer
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Accesses 2FA software files, possible credential harvesting 2 TTPs
    spywarestealer
  • Checks installed software on the system 1 TTPs

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

    discovery
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Kills process with taskkill 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0c55d2f909695e522759043833539287910b717860d22f1dbc007f2055a07127.exe
    "C:\Users\Admin\AppData\Local\Temp\0c55d2f909695e522759043833539287910b717860d22f1dbc007f2055a07127.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:992
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im 0c55d2f909695e522759043833539287910b717860d22f1dbc007f2055a07127.exe /f & erase C:\Users\Admin\AppData\Local\Temp\0c55d2f909695e522759043833539287910b717860d22f1dbc007f2055a07127.exe & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:628
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im 0c55d2f909695e522759043833539287910b717860d22f1dbc007f2055a07127.exe /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2652

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

4
T1005

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/628-116-0x0000000000000000-mapping.dmp
    Download
  • memory/992-114-0x0000000002210000-0x0000000002299000-memory.dmp
    Filesize

    548KB

    Download
  • memory/992-115-0x0000000000400000-0x00000000004A5000-memory.dmp
    Filesize

    660KB

    Download
  • memory/2652-117-0x0000000000000000-mapping.dmp
    Download