Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    27-03-2023 21:31

General

  • Target

    file.exe

  • Size

    3.4MB

  • MD5

    9838d7b931ba280e94b401ed799e35f9

  • SHA1

    ae7d122c39e37ef24b9a1fd3fdf08fd002f8620e

  • SHA256

    0136319c6ea0ac8a0265c915e91731252b3e185433846300e858bf22570eff35

  • SHA512

    2ff6289355bd35238ce0b00a3130022da2d76a814066c1469bad63a4319b5a2dc2965d90346ecf8ad3ebaecf63c8828f049eb5abac83376a217aedccf203cc1f

  • SSDEEP

    98304:PUGbQl+tr2/LRPFiwwxBU0lxvCngfl1m4wgfT:2l+IN6ZvegDR7

Malware Config

Extracted

Family

vidar

Version

3.2

Botnet

faf321b64879a39e4d9e2b6994483a1a

C2

https://steamcommunity.com/profiles/76561199489580435

https://t.me/tabootalks

Attributes
  • profile_id_v2

    faf321b64879a39e4d9e2b6994483a1a

  • user_agent

    Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79

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.

  • Modifies system certificate store 2 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system certificate store
    PID:2012

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    61KB

    MD5

    e71c8443ae0bc2e282c73faead0a6dd3

    SHA1

    0c110c1b01e68edfacaeae64781a37b1995fa94b

    SHA256

    95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

    SHA512

    b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

  • C:\Users\Admin\AppData\Local\Temp\Tar4DF9.tmp
    Filesize

    161KB

    MD5

    be2bec6e8c5653136d3e72fe53c98aa3

    SHA1

    a8182d6db17c14671c3d5766c72e58d87c0810de

    SHA256

    1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

    SHA512

    0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff

  • \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/2012-63-0x0000000000400000-0x0000000000A1A000-memory.dmp
    Filesize

    6.1MB

  • memory/2012-68-0x0000000000400000-0x0000000000A1A000-memory.dmp
    Filesize

    6.1MB

  • memory/2012-67-0x0000000000400000-0x0000000000A1A000-memory.dmp
    Filesize

    6.1MB

  • memory/2012-54-0x0000000000400000-0x0000000000A1A000-memory.dmp
    Filesize

    6.1MB

  • memory/2012-120-0x0000000000400000-0x0000000000A1A000-memory.dmp
    Filesize

    6.1MB

  • memory/2012-121-0x0000000000400000-0x0000000000A1A000-memory.dmp
    Filesize

    6.1MB

  • memory/2012-122-0x0000000061E00000-0x0000000061EF3000-memory.dmp
    Filesize

    972KB

  • memory/2012-60-0x0000000000400000-0x0000000000A1A000-memory.dmp
    Filesize

    6.1MB

  • memory/2012-56-0x0000000000400000-0x0000000000A1A000-memory.dmp
    Filesize

    6.1MB

  • memory/2012-163-0x0000000000400000-0x0000000000A1A000-memory.dmp
    Filesize

    6.1MB