Analysis

  • max time kernel
    150s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-02-2024 23:56

General

  • Target

    636c32103ef487d1c30df530296f014b.exe

  • Size

    163KB

  • MD5

    636c32103ef487d1c30df530296f014b

  • SHA1

    f280007f3c78b0823d8978bec1c1cdf792bf5fc6

  • SHA256

    c79f0b410c62adbad0d697c85f0f6cf786c61e1a1244090650440d8a09b90bbd

  • SHA512

    2a01b0fb459a710c4d8ffb20fe2907bbb5ca091769cb8b3216d909208ee662f9c2f6f035fa1c8aeb9222ee7018c6da15615414b2556e02f0bbcc3bd05337f604

  • SSDEEP

    3072:eQ37N6u0D0i+zGJKHZj+4M48iIp2WZnFzw0I:eK8u0Qi+yQHZEiIttw

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://selebration17io.io/index.php

http://vacantion18ffeu.cc/index.php

http://valarioulinity1.net/index.php

http://buriatiarutuhuob.net/index.php

http://cassiosssionunu.me/index.php

http://sulugilioiu19.net/index.php

http://goodfooggooftool.net/index.php

rc4.i32
rc4.i32

Extracted

Family

lumma

C2

https://resergvearyinitiani.shop/api

https://technologyenterdo.shop/api

https://detectordiscusser.shop/api

https://turkeyunlikelyofw.shop/api

https://associationokeo.shop/api

Signatures

  • Lumma Stealer

    An infostealer written in C++ first seen in August 2022.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 6 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\636c32103ef487d1c30df530296f014b.exe
    "C:\Users\Admin\AppData\Local\Temp\636c32103ef487d1c30df530296f014b.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:3884
  • C:\Users\Admin\AppData\Local\Temp\F4FF.exe
    C:\Users\Admin\AppData\Local\Temp\F4FF.exe
    1⤵
    • Executes dropped EXE
    PID:4268
  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\61F2.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4912
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\61F2.dll
      2⤵
      • Loads dropped DLL
      PID:3128
  • C:\Users\Admin\AppData\Local\Temp\B0AF.exe
    C:\Users\Admin\AppData\Local\Temp\B0AF.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3928
    • C:\Users\Admin\AppData\Local\Temp\B0AF.exe
      C:\Users\Admin\AppData\Local\Temp\B0AF.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2264

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\61F2.dll

    Filesize

    2.0MB

    MD5

    7aecbe510817ee9636a5bcbff0ee5fdd

    SHA1

    6a3f27f7789ccf1b19c948774d84c865a9ac6825

    SHA256

    b4ee4aa0b664fe673986399de8105c600330339971bd8583177fa38dddd13aac

    SHA512

    a681efb97745aed5f73d197730049ff80798d133245d8e8bcb0faf3532a9ef440d1687016c9f666c1f56479c7db003b0388e0a69bb2626f34c86046bc477edae

  • C:\Users\Admin\AppData\Local\Temp\B0AF.exe

    Filesize

    1.9MB

    MD5

    0642278745fba16597e65937093b4610

    SHA1

    9409ea6dd562c7b66b1fbd73ba5af5974b21b4af

    SHA256

    040ae9c155ffde932d4c62f1334f4afcc6cabeb991b3602f8cea7747c64c1755

    SHA512

    b8560457bf9cc89ba39203476cbbe1c2a7e31ede4af0ff022c8fab232ad7b739b73ff4f02b9084dea147336d6e11e46940a985fbf2141280f4cf0716692ddca5

  • C:\Users\Admin\AppData\Local\Temp\B0AF.exe

    Filesize

    1.9MB

    MD5

    398ab69b1cdc624298fbc00526ea8aca

    SHA1

    b2c76463ae08bb3a08accfcbf609ec4c2a9c0821

    SHA256

    ca827a18753cf8281d57b7dff32488c0701fe85af56b59eab5a619ae45b5f0be

    SHA512

    3b222a46a8260b7810e2e6686b7c67b690452db02ed1b1e75990f4ac1421ead9ddc21438a419010169258b1ae4b206fbfa22bb716b83788490b7737234e42739

  • C:\Users\Admin\AppData\Local\Temp\B0AF.exe

    Filesize

    1.6MB

    MD5

    3a57dc900df7d0c26658c8359e9cf0ed

    SHA1

    13bf3442ea417341c42a99fc00627fda7d3cf623

    SHA256

    d86b53f57b7e62d4e0d02d9566e6a893c2ca85d7b81c8623d3f362e61fc4cf84

    SHA512

    57153a2e069a8ce6879529c6bc47e6ef970796bd6d1e354e5f7fd231f6408e2c0935b3c0f1b83f96d9ae9aff715dd9a2d7f058ed7f2afd9702348cbb5cdc893e

  • C:\Users\Admin\AppData\Local\Temp\F4FF.exe

    Filesize

    5.0MB

    MD5

    0904e849f8483792ef67991619ece915

    SHA1

    58d04535efa58effb3c5ed53a2462aa96d676b79

    SHA256

    fca631b3198194fcc0c619b5690dbde2e9f38afb1b978bab8ea3f92b572ce1ef

    SHA512

    258fc59050aa455ad56167dd1bbe5e098eefc0f3e950c90d89bac2aa74abb5cfa1710d866c0e28e58dcb2f914736470a4dd9838dd6412b633aee87d71b867cf5

  • memory/2264-49-0x0000000000400000-0x0000000000848000-memory.dmp

    Filesize

    4.3MB

  • memory/2264-46-0x0000000000400000-0x0000000000848000-memory.dmp

    Filesize

    4.3MB

  • memory/2264-81-0x0000000002E20000-0x0000000002F2E000-memory.dmp

    Filesize

    1.1MB

  • memory/2264-77-0x0000000002E20000-0x0000000002F2E000-memory.dmp

    Filesize

    1.1MB

  • memory/2264-68-0x0000000002CF0000-0x0000000002E19000-memory.dmp

    Filesize

    1.2MB

  • memory/2264-53-0x0000000000D60000-0x0000000000D66000-memory.dmp

    Filesize

    24KB

  • memory/2264-50-0x0000000000400000-0x0000000000848000-memory.dmp

    Filesize

    4.3MB

  • memory/2264-48-0x0000000000400000-0x0000000000848000-memory.dmp

    Filesize

    4.3MB

  • memory/2264-43-0x0000000000400000-0x0000000000848000-memory.dmp

    Filesize

    4.3MB

  • memory/2264-47-0x0000000000400000-0x0000000000848000-memory.dmp

    Filesize

    4.3MB

  • memory/3128-65-0x0000000003180000-0x000000000328E000-memory.dmp

    Filesize

    1.1MB

  • memory/3128-66-0x0000000003290000-0x000000000483F000-memory.dmp

    Filesize

    21.7MB

  • memory/3128-31-0x0000000003180000-0x000000000328E000-memory.dmp

    Filesize

    1.1MB

  • memory/3128-32-0x0000000003180000-0x000000000328E000-memory.dmp

    Filesize

    1.1MB

  • memory/3128-34-0x0000000003180000-0x000000000328E000-memory.dmp

    Filesize

    1.1MB

  • memory/3128-75-0x00000000359A0000-0x00000000359EE000-memory.dmp

    Filesize

    312KB

  • memory/3128-73-0x0000000000EB0000-0x0000000000EC2000-memory.dmp

    Filesize

    72KB

  • memory/3128-40-0x0000000010000000-0x000000001020A000-memory.dmp

    Filesize

    2.0MB

  • memory/3128-72-0x0000000004940000-0x0000000004A3E000-memory.dmp

    Filesize

    1016KB

  • memory/3128-69-0x0000000004940000-0x0000000004A3E000-memory.dmp

    Filesize

    1016KB

  • memory/3128-67-0x0000000004840000-0x000000000493C000-memory.dmp

    Filesize

    1008KB

  • memory/3128-27-0x0000000010000000-0x000000001020A000-memory.dmp

    Filesize

    2.0MB

  • memory/3128-26-0x0000000000FD0000-0x0000000000FD6000-memory.dmp

    Filesize

    24KB

  • memory/3128-30-0x0000000003050000-0x0000000003179000-memory.dmp

    Filesize

    1.2MB

  • memory/3352-4-0x00000000027A0000-0x00000000027B6000-memory.dmp

    Filesize

    88KB

  • memory/3884-5-0x0000000000400000-0x00000000022D1000-memory.dmp

    Filesize

    30.8MB

  • memory/3884-1-0x0000000002540000-0x0000000002640000-memory.dmp

    Filesize

    1024KB

  • memory/3884-3-0x0000000000400000-0x00000000022D1000-memory.dmp

    Filesize

    30.8MB

  • memory/3884-2-0x0000000002470000-0x000000000247B000-memory.dmp

    Filesize

    44KB

  • memory/3928-41-0x0000000003740000-0x00000000038FC000-memory.dmp

    Filesize

    1.7MB

  • memory/3928-42-0x0000000003A00000-0x0000000003BB7000-memory.dmp

    Filesize

    1.7MB

  • memory/4268-15-0x0000000000E90000-0x0000000000E91000-memory.dmp

    Filesize

    4KB

  • memory/4268-19-0x0000000000EA0000-0x0000000000EA1000-memory.dmp

    Filesize

    4KB

  • memory/4268-22-0x0000000000080000-0x000000000092F000-memory.dmp

    Filesize

    8.7MB

  • memory/4268-20-0x0000000000EA0000-0x0000000000EA1000-memory.dmp

    Filesize

    4KB

  • memory/4268-21-0x0000000000EA0000-0x0000000000EA1000-memory.dmp

    Filesize

    4KB

  • memory/4268-17-0x0000000000080000-0x000000000092F000-memory.dmp

    Filesize

    8.7MB

  • memory/4268-16-0x0000000000080000-0x000000000092F000-memory.dmp

    Filesize

    8.7MB