Overview

overview

10

Static

static

bd7eec533b...a4.exe

windows7_x64

10

bd7eec533b...a4.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    146s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    15-02-2022 06:35

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General

  • Target

    bd7eec533b670d12046211475971ef6d32b54c37290f41ba33a4cc6b09a925a4.exe

  • Size

    679KB

  • MD5

    f4a9c73c92501f4ada0ad74830610e11

  • SHA1

    f5755ba5404a3fc467f850ff2dd01e6d9fd228fd

  • SHA256

    bd7eec533b670d12046211475971ef6d32b54c37290f41ba33a4cc6b09a925a4

  • SHA512

    7eb7d62d729b2d2dbacd89d6f2a3d94f053ee0336a413fef76effd3a6b445e9f0877c931bfda11ac3624a0bb8ce09268fac4fb637b7d0ea128342a3d9ac80d7c

Score
10/10
vidar937stealer

Malware Config

Extracted

Family

vidar

Version

48.4

Botnet

937

C2

https://koyu.space/@qmashton

Attributes
  • profile_id

    937

Signatures

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

    stealervidar
  • Vidar Stealer 2 IoCs
    stealer
  • Drops file in Windows directory 8 IoCs
  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bd7eec533b670d12046211475971ef6d32b54c37290f41ba33a4cc6b09a925a4.exe
    "C:\Users\Admin\AppData\Local\Temp\bd7eec533b670d12046211475971ef6d32b54c37290f41ba33a4cc6b09a925a4.exe"
    1⤵
      PID:5080
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 1008
        2⤵
        • Program crash
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:868
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 5080 -ip 5080
      1⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Suspicious use of WriteProcessMemory
      PID:1916
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:1404
    • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
      C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:4680

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Credential Access

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    2
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1404-133-0x000001D6E6330000-0x000001D6E637B000-memory.dmp
      Filesize

      300KB

      Download
    • memory/1404-137-0x000001D6E6370000-0x000001D6E6380000-memory.dmp
      Filesize

      64KB

      Download
    • memory/1404-138-0x000001D6E6390000-0x000001D6E63A0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/1404-139-0x000001D6E90B0000-0x000001D6E90B4000-memory.dmp
      Filesize

      16KB

      Download
    • memory/5080-130-0x0000000002290000-0x000000000230B000-memory.dmp
      Filesize

      492KB

      Download
    • memory/5080-131-0x00000000023D0000-0x00000000024A5000-memory.dmp
      Filesize

      852KB

      Download
    • memory/5080-132-0x0000000000400000-0x00000000004D8000-memory.dmp
      Filesize

      864KB

      Download