Analysis

  • max time kernel
    145s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    31-05-2022 15:50

General

  • Target

    a1e3bdcce3d07f6bc4015659a1a334413e619e39d89f5e8cf9304b7f44a93c36.exe

  • Size

    303KB

  • MD5

    f2916222c3c59c2dc07859447acd4419

  • SHA1

    52f83a6127ac36108130a89057378dcfb3bfd91b

  • SHA256

    a1e3bdcce3d07f6bc4015659a1a334413e619e39d89f5e8cf9304b7f44a93c36

  • SHA512

    319facb7d2bfc14429c959c4443b4cafbae8200bcd2b9e866a7fb7f6de2a9c9dac70fd2c1a1bef3e908c80f5bcace28106dd8373b128e0c7891e59146320d857

Malware Config

Extracted

Family

vidar

Version

52.4

Botnet

517

C2

https://t.me/foreigndocs

https://c.im/@ronxik31

Attributes
  • profile_id

    517

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer

    suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer

  • Vidar Stealer 6 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
  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a1e3bdcce3d07f6bc4015659a1a334413e619e39d89f5e8cf9304b7f44a93c36.exe
    "C:\Users\Admin\AppData\Local\Temp\a1e3bdcce3d07f6bc4015659a1a334413e619e39d89f5e8cf9304b7f44a93c36.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2804
    • C:\Users\Admin\AppData\Local\Temp\a1e3bdcce3d07f6bc4015659a1a334413e619e39d89f5e8cf9304b7f44a93c36.exe
      "C:\Users\Admin\AppData\Local\Temp\a1e3bdcce3d07f6bc4015659a1a334413e619e39d89f5e8cf9304b7f44a93c36.exe"
      2⤵
      • Loads dropped DLL
      • Checks processor information in registry
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      PID:4412

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\mozglue.dll

    Filesize

    133KB

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • C:\ProgramData\nss3.dll

    Filesize

    1.2MB

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • memory/2804-132-0x0000000000B7C000-0x0000000000BA5000-memory.dmp

    Filesize

    164KB

  • memory/2804-135-0x0000000000A60000-0x0000000000AA5000-memory.dmp

    Filesize

    276KB

  • memory/4412-131-0x0000000000400000-0x0000000000447000-memory.dmp

    Filesize

    284KB

  • memory/4412-133-0x0000000000400000-0x0000000000447000-memory.dmp

    Filesize

    284KB

  • memory/4412-134-0x0000000000400000-0x0000000000447000-memory.dmp

    Filesize

    284KB

  • memory/4412-136-0x0000000000400000-0x0000000000447000-memory.dmp

    Filesize

    284KB

  • memory/4412-137-0x0000000000400000-0x0000000000447000-memory.dmp

    Filesize

    284KB

  • memory/4412-138-0x0000000060900000-0x0000000060992000-memory.dmp

    Filesize

    584KB