Overview

overview

10

Static

static

10

6c5db6dce1...3e.exe

windows7-x64

10

6c5db6dce1...3e.exe

windows10-2004-x64

10

DusBrowserInst.exe

windows7-x64

6

DusBrowserInst.exe

windows10-2004-x64

6

IDWCH2.exe

windows7-x64

7

IDWCH2.exe

windows10-2004-x64

7

Litever01.exe

windows7-x64

10

Litever01.exe

windows10-2004-x64

10

anyname.exe

windows7-x64

3

anyname.exe

windows10-2004-x64

7

app.exe

windows7-x64

10

app.exe

windows10-2004-x64

10

askinstall50.exe

windows7-x64

10

askinstall50.exe

windows10-2004-x64

10

farlab_setup.exe

windows7-x64

7

farlab_setup.exe

windows10-2004-x64

7

inst002.exe

windows7-x64

10

inst002.exe

windows10-2004-x64

10

jamesnew.exe

windows7-x64

3

jamesnew.exe

windows10-2004-x64

3

justdezine.exe

windows7-x64

10

justdezine.exe

windows10-2004-x64

10

md3_3kvm.exe

windows7-x64

10

md3_3kvm.exe

windows10-2004-x64

10

mixseven.exe

windows7-x64

10

mixseven.exe

windows10-2004-x64

10

redcloud.exe

windows7-x64

10

redcloud.exe

windows10-2004-x64

10

vguuu.exe

windows7-x64

6

vguuu.exe

windows10-2004-x64

6

Analysis

  • max time kernel
    175s
  • max time network
    179s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    04-02-2024 08:58

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General

  • Target

    justdezine.exe

  • Size

    266KB

  • MD5

    af42f93ce8f525564d27ac04797a2803

  • SHA1

    f3b2f54a2881dbfb06d2a8c830953d775f2205d0

  • SHA256

    c8133af9c1ab5f1087ec298e5b06fab0002903b0dac672ed72530c61a45ccf99

  • SHA512

    ac2a12884f0dda0bd93e45f6e02a7eed8bd44befd39c9b9456a97b7faa201af9a67817f45529e250bd609df0dbb65ddf797b7aec784cc9d48bd3f8614d2950f8

  • SSDEEP

    6144:9X8FtebHKT22Jm+xOYFpqsbDewhSCEuRPq:W/ebH32JFFP3uCTRy

Score
10/10
smokeloaderbackdoortrojan

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://varmisende.com/upload/

http://fernandomayol.com/upload/

http://nextlytm.com/upload/

http://people4jan.com/upload/

http://asfaltwerk.com/upload/
rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\justdezine.exe
    "C:\Users\Admin\AppData\Local\Temp\justdezine.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2704
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {12DF16C6-432A-42E5-99C0-8617A6F48E9E} S-1-5-21-2444714103-3190537498-3629098939-1000:DJLAPDMX\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2444
    • C:\Users\Admin\AppData\Roaming\srcgrfc
      C:\Users\Admin\AppData\Roaming\srcgrfc
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2764

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\srcgrfc
    Filesize

    266KB

    MD5

    af42f93ce8f525564d27ac04797a2803

    SHA1

    f3b2f54a2881dbfb06d2a8c830953d775f2205d0

    SHA256

    c8133af9c1ab5f1087ec298e5b06fab0002903b0dac672ed72530c61a45ccf99

    SHA512

    ac2a12884f0dda0bd93e45f6e02a7eed8bd44befd39c9b9456a97b7faa201af9a67817f45529e250bd609df0dbb65ddf797b7aec784cc9d48bd3f8614d2950f8

    Download Submit

  • memory/1216-4-0x0000000002950000-0x0000000002965000-memory.dmp

    Filesize

    84KB

    Download

  • memory/1216-16-0x0000000002980000-0x0000000002995000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2704-1-0x0000000000670000-0x0000000000770000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/2704-2-0x0000000000020000-0x0000000000029000-memory.dmp

    Filesize

    36KB

    Download

  • memory/2704-3-0x0000000000400000-0x0000000000529000-memory.dmp

    Filesize

    1.2MB

    Download

  • memory/2704-5-0x0000000000400000-0x0000000000529000-memory.dmp

    Filesize

    1.2MB

    Download

  • memory/2764-14-0x00000000005F0000-0x00000000006F0000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/2764-15-0x0000000000400000-0x0000000000529000-memory.dmp

    Filesize

    1.2MB

    Download

  • memory/2764-17-0x0000000000400000-0x0000000000529000-memory.dmp

    Filesize

    1.2MB

    Download