Analysis

  • max time kernel
    130s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    26-07-2024 01:03

General

  • Target

    55f106bbd70d6c8b9ecac24ca61fdd85499050acf1973af1a74c39751dca86a9.exe

  • Size

    32.2MB

  • MD5

    50cf2b79a37b6c5e2d8648483487dd60

  • SHA1

    d95fec832f5cc5059d19e626c4eb7c9e526a6550

  • SHA256

    55f106bbd70d6c8b9ecac24ca61fdd85499050acf1973af1a74c39751dca86a9

  • SHA512

    655d587159c4753f4b57a2e3be596f54ac58060473a52296c8e226c9e63cdb32ac5b32fedc3a910652b69bc871c3dcb951f86ec448470b7a6cea370c9925717e

  • SSDEEP

    786432:QHw1v9qnHFHK1CMzoyuBzC8N1YSRwouTtRLbyK:QCqnHFHcCyoy4zC01YSRQtR

Malware Config

Extracted

Family

orcus

Botnet

FunPay

C2

31.44.184.52:44657

Mutex

sudo_vm3jypee5e4wpgyaqsjreb4akskikm0b

Attributes
  • autostart_method

    Disable

  • enable_keylogger

    false

  • install_path

    %appdata%\privategamebase\Discord.exe

  • reconnect_delay

    10000

  • registry_keyname

    Sudik

  • taskscheduler_taskname

    sudik

  • watchdog_path

    AppData\aga.exe

Signatures

  • Orcus

    Orcus is a Remote Access Trojan that is being sold on underground forums.

  • Orcus main payload 1 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Orcurs Rat Executable 10 IoCs
  • Executes dropped EXE 10 IoCs
  • Loads dropped DLL 9 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\55f106bbd70d6c8b9ecac24ca61fdd85499050acf1973af1a74c39751dca86a9.exe
    "C:\Users\Admin\AppData\Local\Temp\55f106bbd70d6c8b9ecac24ca61fdd85499050acf1973af1a74c39751dca86a9.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2432
    • C:\Users\Admin\AppData\Local\Temp\ExLoader_CA Classic.exe
      "C:\Users\Admin\AppData\Local\Temp\ExLoader_CA Classic.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2192
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\ExLoader_Installer.exe
        "C:\Users\Admin\AppData\Local\Temp\RarSFX0\ExLoader_Installer.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:1084
    • C:\Users\Admin\AppData\Local\Temp\Built.exe
      "C:\Users\Admin\AppData\Local\Temp\Built.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2188
      • C:\Users\Admin\AppData\Local\Temp\Built.exe
        "C:\Users\Admin\AppData\Local\Temp\Built.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2744
    • C:\Users\Admin\AppData\Local\Temp\Discord.exe
      "C:\Users\Admin\AppData\Local\Temp\Discord.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2976
      • C:\Users\Admin\AppData\Roaming\privategamebase\Discord.exe
        "C:\Users\Admin\AppData\Roaming\privategamebase\Discord.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1740
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1080
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {FD4C9D8D-DF83-486F-9749-760A830D012D} S-1-5-21-2958949473-3205530200-1453100116-1000:WHMFPZKA\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1028
    • C:\Users\Admin\AppData\Roaming\privategamebase\Discord.exe
      C:\Users\Admin\AppData\Roaming\privategamebase\Discord.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1972
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2904
    • C:\Users\Admin\AppData\Roaming\privategamebase\Discord.exe
      C:\Users\Admin\AppData\Roaming\privategamebase\Discord.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2056
    • C:\Users\Admin\AppData\Roaming\privategamebase\Discord.exe
      C:\Users\Admin\AppData\Roaming\privategamebase\Discord.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2216

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab8CA8.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\ExLoader_Installer.exe

    Filesize

    183KB

    MD5

    afaa67445bd6bc3377cd5c56fdb934d0

    SHA1

    68e4f2cefda7f58478468c5adeeedef3378abae1

    SHA256

    53f5c7bab6cdb50b104882f9ac8ee9e5929b58ef0b392dc5f48c1622f737f002

    SHA512

    db5c7d7e5881ede8a9a6e4d09771dad592a68e7367a42700919cd37ad443badb8c0729cbcc75b9ac25ff65cdc06246b9e72962ebbcbddb1c24a522f8e5c7cd24

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\flutter_windows.dll

    Filesize

    17.3MB

    MD5

    cf1901e6b6a138422e4eb765ec20e098

    SHA1

    3cbde7f32504cbc0795e536a024e61fa2185ced2

    SHA256

    615038c51ea1655b6b8f057ac16f725d51b395efe76fa96cfb97924b0d908297

    SHA512

    82e19d116db7ae553d66511c2255728d1651919ffe83ca87f79a9e00f7d7085665ce5303c48729e7941e33aa91f65ad4d17fd30101e9865e76c8a2540d0af7e7

  • C:\Users\Admin\AppData\Local\Temp\_MEI21882\python311.dll

    Filesize

    1.6MB

    MD5

    5f6fd64ec2d7d73ae49c34dd12cedb23

    SHA1

    c6e0385a868f3153a6e8879527749db52dce4125

    SHA256

    ff9f102264d1944fbfae2ba70e7a71435f51a3e8c677fd970b621c4c9ea71967

    SHA512

    c4be2d042c6e4d22e46eacfd550f61b8f55814bfe41d216a4df48382247df70bc63151068513855aa78f9b3d2f10ba6a824312948324c92de6dd0f6af414e8ab

  • C:\Users\Admin\AppData\Roaming\privategamebase\Discord.exe.config

    Filesize

    357B

    MD5

    a2b76cea3a59fa9af5ea21ff68139c98

    SHA1

    35d76475e6a54c168f536e30206578babff58274

    SHA256

    f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

    SHA512

    b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

  • \Users\Admin\AppData\Local\Temp\Built.exe

    Filesize

    7.4MB

    MD5

    271698776c17f52bdd5083bc872f2b69

    SHA1

    0827944c3617c5b8fcf119182fa26afef974b9e8

    SHA256

    e3cd396506f03d756d04ffd28759c296bc0176b584f27017ca504c6836241ff6

    SHA512

    b4a97ef4d4b65feab1bf3fe1e8f9824b1bec216099942212d2211ad04c9288f24155e220e531a72ae631e994b814210e2e74e7a81ba45e240b25a0621c439534

  • \Users\Admin\AppData\Local\Temp\Discord.exe

    Filesize

    3.2MB

    MD5

    90cd2e9c676fc284584653b5d4f95126

    SHA1

    4e1a138d45e7833d1eb4205606cdd7f4508bce5c

    SHA256

    5ccf3a06eeaa035c5b4b60f44e7820692c015208d62e415a3c224c009edde3df

    SHA512

    57166446c7743344914d2c1e089e066bc0ddddc29cb8e64e801f01c63f6287d524a3778a7d67070779e90ad31e7b0675f081dafbd32b34aa407e20706885a146

  • \Users\Admin\AppData\Local\Temp\ExLoader_CA Classic.exe

    Filesize

    21.5MB

    MD5

    01deeaf6a3ac4ecea37fd6f21c3ea66a

    SHA1

    2767ec1e576b7639c38b3d75bca5a99146ffda95

    SHA256

    fae28755d742035f89e0cf73e9c46c7b7c2b625b3dcfab379dc135b9fa79dbb9

    SHA512

    d6e959987be4f69a890fa1ba62700ae5f7612e0a4919e58491bbdc96f60ebfbf5fe34806a2413b5724459576ab96e007d8edfe393ea9d12bf003f0df9e5fc9fe

  • memory/1080-487-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/1080-497-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/1080-762-0x0000000004AC0000-0x0000000004AC2000-memory.dmp

    Filesize

    8KB

  • memory/1080-761-0x0000000000C80000-0x0000000000C8E000-memory.dmp

    Filesize

    56KB

  • memory/1080-514-0x0000000000AA0000-0x0000000000AB0000-memory.dmp

    Filesize

    64KB

  • memory/1080-513-0x0000000000750000-0x0000000000768000-memory.dmp

    Filesize

    96KB

  • memory/1080-491-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/1080-495-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/1080-496-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/1080-489-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/1080-493-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/1080-498-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/1740-485-0x00000000009D0000-0x00000000009E2000-memory.dmp

    Filesize

    72KB

  • memory/1740-486-0x0000000000BB0000-0x0000000000BFE000-memory.dmp

    Filesize

    312KB

  • memory/1740-484-0x00000000010F0000-0x0000000001434000-memory.dmp

    Filesize

    3.3MB

  • memory/1972-500-0x0000000000790000-0x00000000007A2000-memory.dmp

    Filesize

    72KB

  • memory/2216-765-0x0000000000220000-0x0000000000564000-memory.dmp

    Filesize

    3.3MB

  • memory/2432-49-0x0000000000400000-0x0000000002440000-memory.dmp

    Filesize

    32.2MB

  • memory/2744-95-0x000007FEF5E60000-0x000007FEF6449000-memory.dmp

    Filesize

    5.9MB

  • memory/2904-509-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2976-471-0x0000000000350000-0x000000000035E000-memory.dmp

    Filesize

    56KB

  • memory/2976-465-0x00000000011B0000-0x00000000014F4000-memory.dmp

    Filesize

    3.3MB

  • memory/2976-473-0x0000000000A20000-0x0000000000A32000-memory.dmp

    Filesize

    72KB

  • memory/2976-472-0x0000000000B90000-0x0000000000BEC000-memory.dmp

    Filesize

    368KB