Analysis

  • max time kernel
    122s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    19-07-2023 12:47

General

  • Target

    d2192209d6892b9bf8e6d155a53b69a5.exe

  • Size

    3.3MB

  • MD5

    d2192209d6892b9bf8e6d155a53b69a5

  • SHA1

    f417394441a253f7f0ef661b00905fa51c71b4fc

  • SHA256

    b644ed105b1208ac7d25de367523aec04f53c18c68d7e389d892a0930cba860b

  • SHA512

    6cbe6898897864cd99579f000806867724c65327125250bb382204e012d375c9211acdac3cdfa36091daee42b0a1394777f69a51ad192ad9dabc7449af4c903f

  • SSDEEP

    49152:B9fBVAeoycp8DtPCrZPKh0wCqMEvhuwteJoltx6I+PGnGToq5aOCDDHV3:BnVAeh+8Dtqtyh5Iw4qZoGnZOCfHl

Malware Config

Extracted

Family

vidar

Version

4.8

Botnet

https://t.me/sundayevent

C2

https://t.me/sundayevent

https://steamcommunity.com/profiles/76561198982268531

Attributes
  • profile_id_v2

    https://t.me/sundayevent

  • user_agent

    Mozilla/5.0 (X11; Linux 3.5.4-1-ARCH i686; es) KHTML/4.9.1 (like Gecko) Konqueror/4.9

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 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
  • Themida packer 2 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • 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.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d2192209d6892b9bf8e6d155a53b69a5.exe
    "C:\Users\Admin\AppData\Local\Temp\d2192209d6892b9bf8e6d155a53b69a5.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2076
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      2⤵
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2940
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe" & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2592
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 6
          4⤵
          • Delays execution with timeout.exe
          PID:2972

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab459A.tmp

    Filesize

    62KB

    MD5

    3ac860860707baaf32469fa7cc7c0192

    SHA1

    c33c2acdaba0e6fa41fd2f00f186804722477639

    SHA256

    d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

    SHA512

    d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

  • C:\Users\Admin\AppData\Local\Temp\Tar4687.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/2076-97-0x0000000000360000-0x0000000000375000-memory.dmp

    Filesize

    84KB

  • memory/2076-65-0x00000000771E0000-0x00000000772F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2076-58-0x00000000771E0000-0x00000000772F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2076-59-0x00000000774E0000-0x0000000077527000-memory.dmp

    Filesize

    284KB

  • memory/2076-63-0x00000000771E0000-0x00000000772F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2076-64-0x00000000771E0000-0x00000000772F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2076-99-0x0000000000360000-0x0000000000375000-memory.dmp

    Filesize

    84KB

  • memory/2076-66-0x00000000774E0000-0x0000000077527000-memory.dmp

    Filesize

    284KB

  • memory/2076-67-0x00000000771E0000-0x00000000772F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2076-68-0x0000000077D00000-0x0000000077D02000-memory.dmp

    Filesize

    8KB

  • memory/2076-69-0x00000000771E0000-0x00000000772F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2076-70-0x0000000000390000-0x0000000000A78000-memory.dmp

    Filesize

    6.9MB

  • memory/2076-71-0x0000000000390000-0x0000000000A78000-memory.dmp

    Filesize

    6.9MB

  • memory/2076-73-0x00000000771E0000-0x00000000772F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2076-74-0x00000000774E0000-0x0000000077527000-memory.dmp

    Filesize

    284KB

  • memory/2076-75-0x00000000771E0000-0x00000000772F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2076-76-0x00000000771E0000-0x00000000772F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2076-77-0x0000000000360000-0x000000000037C000-memory.dmp

    Filesize

    112KB

  • memory/2076-101-0x0000000000360000-0x0000000000375000-memory.dmp

    Filesize

    84KB

  • memory/2076-83-0x0000000000360000-0x0000000000375000-memory.dmp

    Filesize

    84KB

  • memory/2076-93-0x0000000000360000-0x0000000000375000-memory.dmp

    Filesize

    84KB

  • memory/2076-95-0x0000000000360000-0x0000000000375000-memory.dmp

    Filesize

    84KB

  • memory/2076-56-0x00000000771E0000-0x00000000772F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2076-91-0x0000000000360000-0x0000000000375000-memory.dmp

    Filesize

    84KB

  • memory/2076-79-0x0000000000360000-0x0000000000375000-memory.dmp

    Filesize

    84KB

  • memory/2076-57-0x00000000771E0000-0x00000000772F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2076-89-0x0000000000360000-0x0000000000375000-memory.dmp

    Filesize

    84KB

  • memory/2076-87-0x0000000000360000-0x0000000000375000-memory.dmp

    Filesize

    84KB

  • memory/2076-85-0x0000000000360000-0x0000000000375000-memory.dmp

    Filesize

    84KB

  • memory/2076-81-0x0000000000360000-0x0000000000375000-memory.dmp

    Filesize

    84KB

  • memory/2076-78-0x0000000000360000-0x0000000000375000-memory.dmp

    Filesize

    84KB

  • memory/2076-117-0x0000000000390000-0x0000000000A78000-memory.dmp

    Filesize

    6.9MB

  • memory/2076-120-0x00000000771E0000-0x00000000772F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2076-121-0x00000000774E0000-0x0000000077527000-memory.dmp

    Filesize

    284KB

  • memory/2076-54-0x0000000000390000-0x0000000000A78000-memory.dmp

    Filesize

    6.9MB

  • memory/2076-55-0x00000000771E0000-0x00000000772F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2940-112-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/2940-123-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2940-110-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2940-122-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2940-115-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2940-106-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2940-108-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2940-113-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2940-119-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2940-171-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/2940-104-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2940-102-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2940-208-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2940-209-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2940-210-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB