Analysis

  • max time kernel
    81s
  • max time network
    146s
  • platform
    windows10-1703_x64
  • resource
    win10-20220901-en
  • resource tags

    arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
  • submitted
    02-10-2022 11:17

General

  • Target

    Setup.exe

  • Size

    339.3MB

  • MD5

    b61856ad41a4423ae265efb0b5bad7d5

  • SHA1

    7700b24a0696aeb1d0b09240adb090dffd52049b

  • SHA256

    8537f13d073583dfe3ac62f19a80490fe2f60e6701d1a6ad1bf861274d4b7c10

  • SHA512

    db98eace3fb0ed2e1bbdb83b426be80bbe5a067cc20f481d420ecd25779ea8dcd2271cb9b6009d9ea44d78d7d9c541e96b58745c45e009535aee552c817bb056

  • SSDEEP

    98304:3WRH1yPRGZ5U2koQ2JDh6e9E+t4ZiwNqUejhP+AFu93SXup9Buys:GRHAPRGroLcD3qS4lo+l93bp9Bx

Malware Config

Extracted

Family

vidar

Version

54.8

Botnet

1281

C2

https://t.me/dsjdsnxshjx

Attributes
  • profile_id

    1281

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

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

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

  • 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.

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2676
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" \/c taskkill /im Setup.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\Setup.exe" & del C:\PrograData\*.dll & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4080
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im Setup.exe /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3576
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 6
        3⤵
        • Delays execution with timeout.exe
        PID:4224

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • \ProgramData\mozglue.dll
    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll
    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/2676-120-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-121-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-122-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-123-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-124-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-125-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-126-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-127-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-128-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-129-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-131-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-130-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-132-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-133-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-134-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-135-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-136-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-137-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-138-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-139-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-140-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-141-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-142-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-143-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-144-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-145-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-147-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-149-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-150-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-151-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-148-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-146-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-152-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-153-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-154-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-155-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-156-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-157-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-158-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-159-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-160-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-161-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-162-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-163-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-164-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-165-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-166-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-167-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-168-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-169-0x0000000000240000-0x0000000000A62000-memory.dmp
    Filesize

    8.1MB

  • memory/2676-174-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-175-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-176-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-177-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-178-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-179-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-180-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-181-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-182-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/2676-183-0x0000000077BA0000-0x0000000077D2E000-memory.dmp
    Filesize

    1.6MB

  • memory/3576-244-0x0000000000000000-mapping.dmp
  • memory/4080-238-0x0000000000000000-mapping.dmp
  • memory/4224-287-0x0000000000000000-mapping.dmp