General

  • Target

    file.exe

  • Size

    253KB

  • Sample

    230216-rcnzwshd9z

  • MD5

    65f9ad89040725ce5ea1d57260df1e37

  • SHA1

    f855300c13ac1223b3e2307a3b05bf6ef3d02786

  • SHA256

    24c454f4e2e0bbf0f3f367e9c93e95178dc467dbdd5a59e2f0ef9d45a1a02d53

  • SHA512

    8872c83a0e596a38f8d2bd4b61af049fc4bc120d8089f3396b4df2ca97f5b25d35959146d782a5bf9ef0711a82c65ff2b4b01551736891b069c8c4ad7a2580cd

  • SSDEEP

    3072:E2GRLOBU4/rq5uoLlQNmdFpzXfu4Ik4COZ0sAry/I3HPV/o8K:nKLM/Bo5dpW3F0s1/I3HZH

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

      file.exe

    • Size

      253KB

    • MD5

      65f9ad89040725ce5ea1d57260df1e37

    • SHA1

      f855300c13ac1223b3e2307a3b05bf6ef3d02786

    • SHA256

      24c454f4e2e0bbf0f3f367e9c93e95178dc467dbdd5a59e2f0ef9d45a1a02d53

    • SHA512

      8872c83a0e596a38f8d2bd4b61af049fc4bc120d8089f3396b4df2ca97f5b25d35959146d782a5bf9ef0711a82c65ff2b4b01551736891b069c8c4ad7a2580cd

    • SSDEEP

      3072:E2GRLOBU4/rq5uoLlQNmdFpzXfu4Ik4COZ0sAry/I3HPV/o8K:nKLM/Bo5dpW3F0s1/I3HZH

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • 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

2
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

Command and Control

Web Service

1
T1102

Tasks