Analysis

  • max time kernel
    223s
  • max time network
    350s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    11-05-2022 14:45

General

  • Target

    Installer.exe

  • Size

    364.9MB

  • MD5

    6f4a55e3149cdaeee406f45159143ad3

  • SHA1

    8b78b75db208bc8830bc6ee4a336c4a6924ad162

  • SHA256

    db3a04ac7c84019a5cea15908ee835b1a76acb289f3657bb8aeddfe780ae9885

  • SHA512

    f5134c9f08493b1f16cba0bb2c77663358908305eb865df8928e425bd4b710416f16b9fc149122bc25184e26e9f605b08121ff701ba56bd56b3c08036ba61d8d

Malware Config

Extracted

Family

vidar

Version

52

Botnet

1281

C2

https://t.me/hollandracing

https://busshi.moe/@ronxik321

Attributes
  • profile_id

    1281

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

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Vidar Stealer 6 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • 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.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 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 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Installer.exe
    "C:\Users\Admin\AppData\Local\Temp\Installer.exe"
    1⤵
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    PID:1664

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • \ProgramData\mozglue.dll
    Filesize

    133KB

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • \ProgramData\nss3.dll
    Filesize

    1.2MB

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • memory/1664-69-0x0000000001050000-0x00000000017C8000-memory.dmp
    Filesize

    7.5MB

  • memory/1664-59-0x0000000001050000-0x00000000017C8000-memory.dmp
    Filesize

    7.5MB

  • memory/1664-70-0x00000000776E0000-0x0000000077860000-memory.dmp
    Filesize

    1.5MB

  • memory/1664-62-0x0000000075C01000-0x0000000075C03000-memory.dmp
    Filesize

    8KB

  • memory/1664-61-0x0000000001050000-0x00000000017C8000-memory.dmp
    Filesize

    7.5MB

  • memory/1664-64-0x0000000001050000-0x00000000017C8000-memory.dmp
    Filesize

    7.5MB

  • memory/1664-63-0x0000000001050000-0x00000000017C8000-memory.dmp
    Filesize

    7.5MB

  • memory/1664-65-0x0000000075580000-0x000000007562C000-memory.dmp
    Filesize

    688KB

  • memory/1664-71-0x0000000001050000-0x00000000017C8000-memory.dmp
    Filesize

    7.5MB

  • memory/1664-68-0x0000000074D10000-0x0000000074EA0000-memory.dmp
    Filesize

    1.6MB

  • memory/1664-55-0x0000000001050000-0x00000000017C8000-memory.dmp
    Filesize

    7.5MB

  • memory/1664-56-0x0000000001050000-0x00000000017C8000-memory.dmp
    Filesize

    7.5MB

  • memory/1664-67-0x00000000768E0000-0x0000000076A3C000-memory.dmp
    Filesize

    1.4MB

  • memory/1664-72-0x0000000001050000-0x00000000017C8000-memory.dmp
    Filesize

    7.5MB

  • memory/1664-73-0x0000000001050000-0x00000000017C8000-memory.dmp
    Filesize

    7.5MB

  • memory/1664-74-0x0000000001050000-0x00000000017C8000-memory.dmp
    Filesize

    7.5MB

  • memory/1664-75-0x0000000001050000-0x00000000017C8000-memory.dmp
    Filesize

    7.5MB

  • memory/1664-76-0x0000000001050000-0x00000000017C8000-memory.dmp
    Filesize

    7.5MB

  • memory/1664-77-0x0000000001050000-0x00000000017C8000-memory.dmp
    Filesize

    7.5MB

  • memory/1664-78-0x0000000060900000-0x0000000060992000-memory.dmp
    Filesize

    584KB

  • memory/1664-57-0x00000000000D0000-0x0000000000110000-memory.dmp
    Filesize

    256KB

  • memory/1664-54-0x0000000001050000-0x00000000017C8000-memory.dmp
    Filesize

    7.5MB