Analysis

  • max time kernel
    120s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    08-04-2024 01:23

General

  • Target

    4379e1290aa5d36cc98722935afab5764ba64d61e9f0615b5395c2a22c75d80a.exe

  • Size

    214KB

  • MD5

    44ec00c94ceb935df7244cb692fec9b8

  • SHA1

    aad96da95feeadd4cbe7f504a055fa1896c7414c

  • SHA256

    4379e1290aa5d36cc98722935afab5764ba64d61e9f0615b5395c2a22c75d80a

  • SHA512

    0adc31bc898bcf2ff3057b9cfb67a65bfc127c3849ad64133c273a45bde4901b4667790e5a59b959a711f0ddf5aa71a89ebc6285f41e0f5b921d59f07be52497

  • SSDEEP

    6144:pnkd9Rk0WB3H38DwMXHQg/Z9ScXJ+xovgnkBBG:uHiLcDwMXw8ZscXJ+xoonkBB

Score
10/10

Malware Config

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199662282318

https://t.me/t8jmhl

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36 OPR/108.0.0.0

Signatures

  • Detect Vidar Stealer 8 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Detect binaries embedding considerable number of MFA browser extension IDs. 1 IoCs
  • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 1 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 8 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 8 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4379e1290aa5d36cc98722935afab5764ba64d61e9f0615b5395c2a22c75d80a.exe
    "C:\Users\Admin\AppData\Local\Temp\4379e1290aa5d36cc98722935afab5764ba64d61e9f0615b5395c2a22c75d80a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2948
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:2524
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 1512
        3⤵
        • Program crash
        PID:2112

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

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

    Filesize

    344B

    MD5

    4413b012f7993e53397693deb952d6e2

    SHA1

    5502e12931aa566c1eea1ab62fb47040b19d2130

    SHA256

    33574bd65f40e70febb2e3649a9b2e3fcd88470394c163177df598a14089c6f7

    SHA512

    5fe14666e5cadb9ffa92335060a238a5a9ac148b6cf717d063faf0e5026c89943e5c60e249236bd7ea6b2c026164a619a6809ccbe5f4b00569cc5587ae5d2706

  • C:\Users\Admin\AppData\Local\Temp\Tar609E.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • memory/2524-13-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2524-16-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2524-9-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2524-10-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2524-11-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2524-151-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2524-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2524-7-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2524-5-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2524-19-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2524-22-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2524-23-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2948-20-0x0000000074260000-0x000000007494E000-memory.dmp

    Filesize

    6.9MB

  • memory/2948-4-0x0000000002350000-0x0000000004350000-memory.dmp

    Filesize

    32.0MB

  • memory/2948-1-0x0000000074260000-0x000000007494E000-memory.dmp

    Filesize

    6.9MB

  • memory/2948-0-0x00000000003C0000-0x00000000003FC000-memory.dmp

    Filesize

    240KB