General

  • Target

    61ce24cfa4e37069520c2d81124feb86e1c8ced4c955cfb28d0562500494f044

  • Size

    254KB

  • Sample

    230216-pyb64shb61

  • MD5

    62a548802cb94fe33a1839a2014dc0f0

  • SHA1

    3365c770c693ce9ae6ee577b75b957c6a1fe8637

  • SHA256

    61ce24cfa4e37069520c2d81124feb86e1c8ced4c955cfb28d0562500494f044

  • SHA512

    55ccf15401740a958672f7c622a60b19f312ff92a633e179d6a0656369e56cfd3a462f45908122efd4219defdabd1f659664a66b8ade0a7fa78a3a089f09d515

  • SSDEEP

    3072:ZudeRJcLmEhBRdqDR3ey5FHyc4MX3mQWQsNc5Tm2RziwCks7VXCKl5a:kIcLmY3OLHyc4M7sNsriwCVl

Malware Config

Extracted

Family

djvu

C2

http://bihsy.com/test2/get.php

http://bihsy.com/lancer/get.php

Attributes
  • extension

    .hhee

  • offline_id

    dMMXkgwQTycP13C5xwPbHDSzhx1ZxiPgIMZXewt1

  • payload_url

    http://uaery.top/dl/build2.exe

    http://bihsy.com/files/1/build3.exe

  • ransomnote

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rsa_pubkey.plain

Extracted

Family

gozi

Extracted

Family

gozi

Botnet

1001

C2

https://checklist.skype.com

http://176.10.125.84

http://91.242.219.235

http://79.132.130.73

http://176.10.119.209

http://194.76.225.88

http://79.132.134.158

Attributes
  • base_path

    /microsoft/

  • build

    250256

  • exe_type

    loader

  • extension

    .acx

  • server_id

    50

rsa_pubkey.plain
aes.plain

Extracted

Family

vidar

Version

2.5

Botnet

19

Attributes
  • profile_id

    19

Extracted

Family

laplas

C2

http://45.159.189.105

Attributes
  • api_key

    ad75d4e2e9636ca662a337b6e798d36159f23acfc89bbe9400d0d451bd8d69fd

Targets

    • Target

      61ce24cfa4e37069520c2d81124feb86e1c8ced4c955cfb28d0562500494f044

    • Size

      254KB

    • MD5

      62a548802cb94fe33a1839a2014dc0f0

    • SHA1

      3365c770c693ce9ae6ee577b75b957c6a1fe8637

    • SHA256

      61ce24cfa4e37069520c2d81124feb86e1c8ced4c955cfb28d0562500494f044

    • SHA512

      55ccf15401740a958672f7c622a60b19f312ff92a633e179d6a0656369e56cfd3a462f45908122efd4219defdabd1f659664a66b8ade0a7fa78a3a089f09d515

    • SSDEEP

      3072:ZudeRJcLmEhBRdqDR3ey5FHyc4MX3mQWQsNc5Tm2RziwCks7VXCKl5a:kIcLmY3OLHyc4M7sNsriwCVl

    • Detect rhadamanthys stealer shellcode

    • Detected Djvu ransomware

    • Detects Smokeloader packer

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Gozi

      Gozi is a well-known and widely distributed banking trojan.

    • Laplas Clipper

      Laplas is a crypto wallet stealer with three variants written in Golang, C#, and C++.

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Rhadamanthys

      Rhadamanthys is an info stealer written in C++ first seen in August 2022.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

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

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses Microsoft Outlook profiles

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks