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Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12/09/2024, 02:23

General

  • Target

    dca6e2b783dab78c14ddf9091de65952665a614ecdc8124d9ffe02cca3315dbb.exe

  • Size

    157KB

  • MD5

    d998151c5f135ab73d6336c1f1d2512d

  • SHA1

    6509b6e31176137ff0f0a7b5cf37b73cb2b64c77

  • SHA256

    dca6e2b783dab78c14ddf9091de65952665a614ecdc8124d9ffe02cca3315dbb

  • SHA512

    1d04df68812994954ac6bb96c4f28e0070e4d8a532d9720ebbda7b96b9f263213d46143019a12964b0cce8dddc583f80d14455d684d33b7d0951c362b1f8fc0f

  • SSDEEP

    3072:X1E/rS2paccKntcPeqgKJ+BC185Y/SpJMXt7fkDehq9Ema0trWa6awu:X1onigKGjpaXta9EWrWw1

Malware Config

Extracted

Family

smokeloader

Version

2017

C2

http://dogewareservice.ru/

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dca6e2b783dab78c14ddf9091de65952665a614ecdc8124d9ffe02cca3315dbb.exe
    "C:\Users\Admin\AppData\Local\Temp\dca6e2b783dab78c14ddf9091de65952665a614ecdc8124d9ffe02cca3315dbb.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2440
    • C:\Users\Admin\AppData\Local\Temp\dca6e2b783dab78c14ddf9091de65952665a614ecdc8124d9ffe02cca3315dbb.exe
      "C:\Users\Admin\AppData\Local\Temp\dca6e2b783dab78c14ddf9091de65952665a614ecdc8124d9ffe02cca3315dbb.exe"
      2⤵
      • Maps connected drives based on registry
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2448
      • C:\Windows\SysWOW64\explorer.exe
        explorer.exe
        3⤵
        • Deletes itself
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:1384

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab62A.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar64D.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \Users\Admin\AppData\Local\Temp\nso899C.tmp\System.dll

    Filesize

    11KB

    MD5

    3f176d1ee13b0d7d6bd92e1c7a0b9bae

    SHA1

    fe582246792774c2c9dd15639ffa0aca90d6fd0b

    SHA256

    fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e

    SHA512

    0a69124819b7568d0dea4e9e85ce8fe61c7ba697c934e3a95e2dcfb9f252b1d9da7faf8774b6e8efd614885507acc94987733eba09a2f5e7098b774dfc8524b6

  • memory/1384-31-0x0000000000080000-0x000000000008A000-memory.dmp

    Filesize

    40KB

  • memory/1384-16-0x00000000001A0000-0x0000000000421000-memory.dmp

    Filesize

    2.5MB

  • memory/1384-17-0x00000000001A0000-0x0000000000421000-memory.dmp

    Filesize

    2.5MB

  • memory/1384-18-0x0000000000080000-0x000000000008A000-memory.dmp

    Filesize

    40KB

  • memory/1384-29-0x0000000000080000-0x000000000008A000-memory.dmp

    Filesize

    40KB

  • memory/2440-9-0x00000000003D0000-0x00000000003D9000-memory.dmp

    Filesize

    36KB

  • memory/2440-7-0x00000000003D0000-0x00000000003D9000-memory.dmp

    Filesize

    36KB

  • memory/2448-11-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/2448-12-0x0000000000030000-0x000000000003A000-memory.dmp

    Filesize

    40KB

  • memory/2448-14-0x0000000000030000-0x000000000003A000-memory.dmp

    Filesize

    40KB

  • memory/2448-23-0x0000000000030000-0x000000000003A000-memory.dmp

    Filesize

    40KB

  • memory/2448-10-0x0000000000030000-0x000000000003A000-memory.dmp

    Filesize

    40KB

  • memory/2448-8-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB