28c5a90535ea4107d1d16bb0bc037bbc2585405a32c1d56046a3332c9c446db3

General
Target

28c5a90535ea4107d1d16bb0bc037bbc2585405a32c1d56046a3332c9c446db3

Size

823KB

Sample

220521-kak2wsbcc5

Score
10 /10
MD5

70fdbe383912394b39ea153e9adf7d77

SHA1

1fe139f95c8df649bbdad3163b9c9721cf617d9e

SHA256

28c5a90535ea4107d1d16bb0bc037bbc2585405a32c1d56046a3332c9c446db3

SHA512

f4dafe41ca9d2bc0c9e36d3645bd26c209b9bd9a8e962a8d31802d8273927815dfb029a1d839896df97d5556f91ce4c5df993721d6b658e2a38793ed22ba940a

Malware Config

Extracted

Family djvu
C2

http://ugll.org/fhsgtsspen6/get.php
Attributes
extension
.fdcv
offline_id
eBNgvyGQV1Hmt9DBdxVRs8qPi1agsS7OaohPmit1
payload_url
http://zerit.top/dl/build2.exe
http://ugll.org/files/1/build3.exe
ransomnote
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rsa_pubkey.plain

Extracted

Family vidar
Version 52.1
Botnet 517
C2

https://t.me/verstappenf1r

https://climatejustice.social/@ronxik312
Attributes
profile_id
517
Targets
Target

28c5a90535ea4107d1d16bb0bc037bbc2585405a32c1d56046a3332c9c446db3

MD5

70fdbe383912394b39ea153e9adf7d77

Filesize

823KB

Score
10/10
SHA1

1fe139f95c8df649bbdad3163b9c9721cf617d9e

SHA256

28c5a90535ea4107d1d16bb0bc037bbc2585405a32c1d56046a3332c9c446db3

SHA512

f4dafe41ca9d2bc0c9e36d3645bd26c209b9bd9a8e962a8d31802d8273927815dfb029a1d839896df97d5556f91ce4c5df993721d6b658e2a38793ed22ba940a

Tags

Signatures

  • Detected Djvu ransomware

  • Djvu Ransomware

    Description

    Ransomware which is a variant of the STOP family.

    Tags

  • Vidar

    Description

    Vidar is an infostealer based on Arkei stealer.

    Tags

  • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    Description

    suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    Tags

  • suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer

    Description

    suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer

    Tags

  • suricata: ET MALWARE Win32/Filecoder.STOP Variant Public Key Download

    Description

    suricata: ET MALWARE Win32/Filecoder.STOP Variant Public Key Download

    Tags

  • suricata: ET MALWARE Win32/Filecoder.STOP Variant Request for Public Key

    Description

    suricata: ET MALWARE Win32/Filecoder.STOP Variant Request for Public Key

    Tags

  • suricata: ET MALWARE Win32/Vodkagats Loader Requesting Payload

    Description

    suricata: ET MALWARE Win32/Vodkagats Loader Requesting Payload

    Tags

  • Vidar Stealer

    Tags

  • Downloads MZ/PE file

  • Executes dropped EXE

  • Checks computer location settings

    Description

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

    TTPs

    Query RegistrySystem Information Discovery

  • Loads dropped DLL

  • Modifies file permissions

    Tags

    TTPs

    File Permissions Modification

  • Reads user/profile data of web browsers

    Description

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

    Tags

    TTPs

    Data from Local SystemCredentials in Files

  • Accesses 2FA software files, possible credential harvesting

    Tags

    TTPs

    Data from Local SystemCredentials in Files

  • Accesses cryptocurrency files/wallets, possible credential harvesting

    Tags

    TTPs

    Data from Local SystemCredentials in Files

  • Adds Run key to start application

    Tags

    TTPs

    Registry Run Keys / Startup FolderModify Registry

  • Checks installed software on the system

    Description

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

    Tags

    TTPs

    Query Registry

  • Looks up external IP address via web service

    Description

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

  • Suspicious use of SetThreadContext

Related Tasks

behavioral1
MITRE ATT&CK Matrix
Collection
Command and Control
    Credential Access
    Defense Evasion
    Discovery
    Execution
      Exfiltration
        Impact
          Initial Access
            Lateral Movement
              Persistence
              Privilege Escalation