Analysis

  • max time kernel
    118s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    03-08-2023 17:29

General

  • Target

    5279a9a1f2521b29d83b608c4d5c9e8cf539dbff4ff730b9811d613c59205a3cexe_JC.exe

  • Size

    353KB

  • MD5

    7134fb3a818a39ee282f1dfc523b0696

  • SHA1

    300f59ece15262c4523966c12b87611352c45fec

  • SHA256

    5279a9a1f2521b29d83b608c4d5c9e8cf539dbff4ff730b9811d613c59205a3c

  • SHA512

    af19ba9faee3dee572d2217530491adb7400a2e69f0b87600acca323cb4b787199e490f155810c0e21cabb964c04975aa295abe61c09c50687457f1c70344051

  • SSDEEP

    6144:bLu/AmzgwKqqvzcyMf0whInEZ8pfvT89Rhbg8F:bK/dVuq2TVw5c8F

Malware Config

Extracted

Family

vidar

Version

4.9

Botnet

6587e364354e0763c3dc725936a67c43

C2

https://t.me/dastantim

https://steamcommunity.com/profiles/76561199529242058

Attributes
  • profile_id_v2

    6587e364354e0763c3dc725936a67c43

  • user_agent

    Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36 Vivaldi/3.7

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Deletes itself 1 IoCs
  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5279a9a1f2521b29d83b608c4d5c9e8cf539dbff4ff730b9811d613c59205a3cexe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\5279a9a1f2521b29d83b608c4d5c9e8cf539dbff4ff730b9811d613c59205a3cexe_JC.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\5279a9a1f2521b29d83b608c4d5c9e8cf539dbff4ff730b9811d613c59205a3cexe_JC.exe" & exit
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:2156
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 6
        3⤵
        • Delays execution with timeout.exe
        PID:2812

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab9D89.tmp

    Filesize

    62KB

    MD5

    3ac860860707baaf32469fa7cc7c0192

    SHA1

    c33c2acdaba0e6fa41fd2f00f186804722477639

    SHA256

    d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

    SHA512

    d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

  • C:\Users\Admin\AppData\Local\Temp\Tar9DDA.tmp

    Filesize

    164KB

    MD5

    4ff65ad929cd9a367680e0e5b1c08166

    SHA1

    c0af0d4396bd1f15c45f39d3b849ba444233b3a2

    SHA256

    c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

    SHA512

    f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

  • \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/2032-53-0x0000000000220000-0x0000000000254000-memory.dmp

    Filesize

    208KB

  • memory/2032-54-0x0000000002450000-0x0000000002513000-memory.dmp

    Filesize

    780KB

  • memory/2032-55-0x0000000000400000-0x0000000002447000-memory.dmp

    Filesize

    32.3MB

  • memory/2032-103-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/2032-135-0x0000000000400000-0x0000000002447000-memory.dmp

    Filesize

    32.3MB

  • memory/2032-141-0x0000000000220000-0x0000000000254000-memory.dmp

    Filesize

    208KB

  • memory/2032-142-0x0000000002450000-0x0000000002513000-memory.dmp

    Filesize

    780KB

  • memory/2032-143-0x0000000000400000-0x0000000002447000-memory.dmp

    Filesize

    32.3MB