Analysis

  • max time kernel
    47s
  • max time network
    288s
  • platform
    windows10-1703_x64
  • resource
    win10-20240221-en
  • resource tags

    arch:x64arch:x86image:win10-20240221-enlocale:en-usos:windows10-1703-x64system
  • submitted
    07-03-2024 04:59

General

  • Target

    a2c996efff932151e3d97d6c0816cc4ad58e54068bc1b037ce2d279a55521008.exe

  • Size

    161KB

  • MD5

    beb935e79a4a35da55548d745c312586

  • SHA1

    404f3832c8e13dc1bbcbac9eda9cf8bea9b07d84

  • SHA256

    a2c996efff932151e3d97d6c0816cc4ad58e54068bc1b037ce2d279a55521008

  • SHA512

    c514adbff0dfeeaaeca607a3efdefb1e71c76db2ae3293d1e465be5f175051f852c8b8ffd58de11ea2e8128bf1e612c5409616b92f92362f515c806e562027f9

  • SSDEEP

    3072:rCZrijHsHF5PcguVl5AtC+U+OdxVH7pM:rariDsrd0lF7xxW

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

amadey

Version

4.17

C2

http://185.215.113.32

Attributes
  • install_dir

    00c07260dc

  • install_file

    explorgu.exe

  • strings_key

    461809bd97c251ba0c0c8450c7055f1d

  • url_paths

    /yandex/index.php

rc4.plain

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 2 IoCs
  • UPX packed file 6 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 10 IoCs
  • Suspicious use of WriteProcessMemory 25 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\a2c996efff932151e3d97d6c0816cc4ad58e54068bc1b037ce2d279a55521008.exe
    "C:\Users\Admin\AppData\Local\Temp\a2c996efff932151e3d97d6c0816cc4ad58e54068bc1b037ce2d279a55521008.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:3688
  • C:\Users\Admin\AppData\Local\Temp\B55.exe
    C:\Users\Admin\AppData\Local\Temp\B55.exe
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Executes dropped EXE
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    PID:4388
  • C:\Users\Admin\AppData\Local\Temp\11AF.exe
    C:\Users\Admin\AppData\Local\Temp\11AF.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4652
    • C:\Users\Admin\AppData\Local\Temp\11AF.exe
      C:\Users\Admin\AppData\Local\Temp\11AF.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      PID:2044
  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\1951.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1348
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\1951.dll
      2⤵
      • Loads dropped DLL
      PID:164
  • C:\Users\Admin\AppData\Local\Temp\2F3C.exe
    C:\Users\Admin\AppData\Local\Temp\2F3C.exe
    1⤵
    • Executes dropped EXE
    PID:5092
  • C:\Users\Admin\AppData\Local\Temp\399D.exe
    C:\Users\Admin\AppData\Local\Temp\399D.exe
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Executes dropped EXE
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    PID:2952

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\11AF.exe

    Filesize

    1.8MB

    MD5

    65ac443eaa4eba05fb6befa6907fe19c

    SHA1

    b1393809b1153fcbd645a8bad9883948cad3428f

    SHA256

    392229ad4e3e2ee25eee282cc6375ebb092f82ffff81a52f4e0de05b7903ddd9

    SHA512

    bc3104a77476e13caec5d7ab98d2d1f5ffd5ec88ba18341da8ac36e389e64fdc6e2fd7b280b65961080d5b54cf0317704d4dc2c7e9392e9e29dd1e746cf0c2a7

  • C:\Users\Admin\AppData\Local\Temp\11AF.exe

    Filesize

    1.8MB

    MD5

    ce472c7bec2183fcb1e8b318012aa085

    SHA1

    0da398d780e6cc424d3b68ebd2903a8c849e7701

    SHA256

    955d0dd8ae390efa84a5823fac5979f8a23f52f86abc5d5499b29bd9860c650c

    SHA512

    ea4921b08af0977128c47dd91f48698bb7bb8b1dd278fb0b2b04fe2b9b41656f98eeb10c471da3dd627ed11bc5bbd29c9c1d776a67f617591d9319ac495378fa

  • C:\Users\Admin\AppData\Local\Temp\1951.dll

    Filesize

    2.8MB

    MD5

    4f8d7e511b02f84dc194286942018d77

    SHA1

    6bcf96994536f34e59fe276319ad470a20e2b1ee

    SHA256

    fae6b84db9375e920ded9af2983e0b48861a531f7cfd90ddc5226576668e4384

    SHA512

    a2b3dec9ec989d372af877cc440de4aba62dd4f3d906d415e2544b98091db2039a5b7905670b63bd25077ffd701d412569e11493ef05dc35d5d6ea6dd2bdc744

  • C:\Users\Admin\AppData\Local\Temp\2F3C.exe

    Filesize

    5.1MB

    MD5

    0c9f883f68bee172f35b87653337e142

    SHA1

    3e540599fab46b00ec82bbbd463eb84645a660da

    SHA256

    89386cc46643c2d5d5a6160e535f186871bc0d7b8aea1052cc39a10ebe1b2b24

    SHA512

    d0ac243e599185abf17c1dad6a70e367691e03ff83609699dc4c210ca7797e7f426e77536c7c57d6a2930133e82d0f953fc27eb1ce811a0c47e2f680db1b07de

  • C:\Users\Admin\AppData\Local\Temp\B55.exe

    Filesize

    1.8MB

    MD5

    3039c5befd722f92f6f87df38c1b677d

    SHA1

    d5f52398ef32fe71ecfff5a83b8c93cc9e8da993

    SHA256

    6cfc00d72c160676038ff25ac0a7a99791924db9a8040b608a4803dd5ca4b060

    SHA512

    a5eae8dac40c9a4389824793a4bf39d70e8621c7bf07b112a966a2b1fe5da9147825972ddf141a9b412bd01c28cc7c5e10afbdde4961bacc9ba28a0fcf558527

  • \Users\Admin\AppData\Local\Temp\1951.dll

    Filesize

    1.1MB

    MD5

    74b609d95b2dcdd821aeba1fa539d635

    SHA1

    83c0ff0c7cacbd380af1267fbd7705e8a022f40b

    SHA256

    6697726f4b3ee7ebf83925814291ba899ed84a78d58c94c8081b2ef29f96334a

    SHA512

    d4353ea9696b82ac7e76acda8405bb47897bf08383bdc05654fac2d9e54b4567d272f26ac03a20ad3158a3ba227082023ebaeca4151c1d789b6f3f9c0edb53c2

  • memory/164-60-0x0000000004BB0000-0x0000000004CB5000-memory.dmp

    Filesize

    1.0MB

  • memory/164-54-0x0000000004BB0000-0x0000000004CB5000-memory.dmp

    Filesize

    1.0MB

  • memory/164-48-0x0000000004BB0000-0x0000000004CB5000-memory.dmp

    Filesize

    1.0MB

  • memory/164-43-0x0000000004A90000-0x0000000004BB0000-memory.dmp

    Filesize

    1.1MB

  • memory/164-40-0x0000000000B20000-0x0000000000B26000-memory.dmp

    Filesize

    24KB

  • memory/164-41-0x0000000010000000-0x00000000102CA000-memory.dmp

    Filesize

    2.8MB

  • memory/2044-67-0x0000000002DC0000-0x0000000002EE0000-memory.dmp

    Filesize

    1.1MB

  • memory/2044-71-0x0000000002EE0000-0x0000000002FE5000-memory.dmp

    Filesize

    1.0MB

  • memory/2044-55-0x0000000000400000-0x0000000000848000-memory.dmp

    Filesize

    4.3MB

  • memory/2044-57-0x0000000000400000-0x0000000000848000-memory.dmp

    Filesize

    4.3MB

  • memory/2044-52-0x0000000000400000-0x0000000000848000-memory.dmp

    Filesize

    4.3MB

  • memory/2044-51-0x0000000000400000-0x0000000000848000-memory.dmp

    Filesize

    4.3MB

  • memory/2044-56-0x0000000000400000-0x0000000000848000-memory.dmp

    Filesize

    4.3MB

  • memory/2044-47-0x0000000000400000-0x0000000000848000-memory.dmp

    Filesize

    4.3MB

  • memory/2044-61-0x0000000000B10000-0x0000000000B16000-memory.dmp

    Filesize

    24KB

  • memory/2044-68-0x0000000002EE0000-0x0000000002FE5000-memory.dmp

    Filesize

    1.0MB

  • memory/2044-77-0x0000000002EE0000-0x0000000002FE5000-memory.dmp

    Filesize

    1.0MB

  • memory/2952-84-0x0000000005530000-0x0000000005531000-memory.dmp

    Filesize

    4KB

  • memory/2952-76-0x00000000011A0000-0x0000000001658000-memory.dmp

    Filesize

    4.7MB

  • memory/2952-78-0x00000000011A0000-0x0000000001658000-memory.dmp

    Filesize

    4.7MB

  • memory/2952-82-0x0000000005510000-0x0000000005511000-memory.dmp

    Filesize

    4KB

  • memory/2952-83-0x00000000054F0000-0x00000000054F1000-memory.dmp

    Filesize

    4KB

  • memory/2952-86-0x00000000054E0000-0x00000000054E1000-memory.dmp

    Filesize

    4KB

  • memory/2952-85-0x00000000054D0000-0x00000000054D1000-memory.dmp

    Filesize

    4KB

  • memory/2952-87-0x0000000005520000-0x0000000005521000-memory.dmp

    Filesize

    4KB

  • memory/2952-81-0x0000000005500000-0x0000000005501000-memory.dmp

    Filesize

    4KB

  • memory/3368-4-0x00000000010A0000-0x00000000010B6000-memory.dmp

    Filesize

    88KB

  • memory/3688-5-0x0000000000400000-0x0000000001F00000-memory.dmp

    Filesize

    27.0MB

  • memory/3688-2-0x0000000002030000-0x000000000203B000-memory.dmp

    Filesize

    44KB

  • memory/3688-1-0x00000000020D0000-0x00000000021D0000-memory.dmp

    Filesize

    1024KB

  • memory/3688-3-0x0000000000400000-0x0000000001F00000-memory.dmp

    Filesize

    27.0MB

  • memory/4388-17-0x0000000000960000-0x0000000000E18000-memory.dmp

    Filesize

    4.7MB

  • memory/4388-31-0x0000000004D20000-0x0000000004D21000-memory.dmp

    Filesize

    4KB

  • memory/4388-15-0x0000000000960000-0x0000000000E18000-memory.dmp

    Filesize

    4.7MB

  • memory/4388-23-0x0000000004CC0000-0x0000000004CC1000-memory.dmp

    Filesize

    4KB

  • memory/4388-24-0x0000000004D00000-0x0000000004D01000-memory.dmp

    Filesize

    4KB

  • memory/4388-22-0x0000000004CD0000-0x0000000004CD1000-memory.dmp

    Filesize

    4KB

  • memory/4388-18-0x0000000004CE0000-0x0000000004CE1000-memory.dmp

    Filesize

    4KB

  • memory/4388-19-0x0000000004CF0000-0x0000000004CF1000-memory.dmp

    Filesize

    4KB

  • memory/4388-20-0x0000000004D10000-0x0000000004D11000-memory.dmp

    Filesize

    4KB

  • memory/4388-36-0x0000000000960000-0x0000000000E18000-memory.dmp

    Filesize

    4.7MB

  • memory/4388-16-0x0000000077A24000-0x0000000077A25000-memory.dmp

    Filesize

    4KB

  • memory/4388-30-0x0000000004D30000-0x0000000004D31000-memory.dmp

    Filesize

    4KB

  • memory/4388-21-0x0000000004CB0000-0x0000000004CB1000-memory.dmp

    Filesize

    4KB

  • memory/4652-45-0x0000000003E00000-0x0000000003FBB000-memory.dmp

    Filesize

    1.7MB

  • memory/4652-46-0x0000000003FC0000-0x0000000004177000-memory.dmp

    Filesize

    1.7MB