Overview

overview

10

Static

static

8

dc7c1bf583...24.exe

windows7_x64

10

dc7c1bf583...24.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    29-12-2020 07:35

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General

  • Target

    dc7c1bf583939fef10df9f038b60fc24.exe

  • Size

    136KB

  • MD5

    dc7c1bf583939fef10df9f038b60fc24

  • SHA1

    137b8059a231dba8c654771b09db028a9e72f20c

  • SHA256

    430ff3dba43b7a63c4a04a52bf6794044a86c0084843c9f115118e789982bed6

  • SHA512

    8950ed2fd5f76e23158cb39e48dd2502bec75cb8297731406a10ff787cc8ed4811caae0b022921c929250bdefaf0534ec9836e106a346cce7391f6989c37d1c1

Score
10/10
smokeloaderbackdoortrojanupx

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://vtdilet.com/upload/

http://netvxi.com/upload/

http://tinnys.monster/upload/
rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

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

    upx
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Program crash 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 2627 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dc7c1bf583939fef10df9f038b60fc24.exe
    "C:\Users\Admin\AppData\Local\Temp\dc7c1bf583939fef10df9f038b60fc24.exe"
    1⤵
    • Loads dropped DLL
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:988
  • C:\Users\Admin\AppData\Roaming\seiurag
    C:\Users\Admin\AppData\Roaming\seiurag
    1⤵
    • Executes dropped EXE
    PID:2704
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2704 -s 240
      2⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:1376

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\CC4F.tmp
    MD5

    50741b3f2d7debf5d2bed63d88404029

    SHA1

    56210388a627b926162b36967045be06ffb1aad3

    SHA256

    f2f8732ae464738372ff274b7e481366cecdd2337210d4a3cbcd089c958a730c

    SHA512

    fac6bfe35b1ee08b3d42d330516a260d9cdb4a90bbb0491411a583029b92a59d20af3552372ea8fb3f59442b3945bf524ef284127f397ae7179467080be8e9b3

    Download Submit
  • C:\Users\Admin\AppData\Roaming\seiurag
    MD5

    dc7c1bf583939fef10df9f038b60fc24

    SHA1

    137b8059a231dba8c654771b09db028a9e72f20c

    SHA256

    430ff3dba43b7a63c4a04a52bf6794044a86c0084843c9f115118e789982bed6

    SHA512

    8950ed2fd5f76e23158cb39e48dd2502bec75cb8297731406a10ff787cc8ed4811caae0b022921c929250bdefaf0534ec9836e106a346cce7391f6989c37d1c1

    Download Submit
  • C:\Users\Admin\AppData\Roaming\seiurag
    MD5

    dc7c1bf583939fef10df9f038b60fc24

    SHA1

    137b8059a231dba8c654771b09db028a9e72f20c

    SHA256

    430ff3dba43b7a63c4a04a52bf6794044a86c0084843c9f115118e789982bed6

    SHA512

    8950ed2fd5f76e23158cb39e48dd2502bec75cb8297731406a10ff787cc8ed4811caae0b022921c929250bdefaf0534ec9836e106a346cce7391f6989c37d1c1

    Download Submit
  • \Users\Admin\AppData\Local\Temp\CC4F.tmp
    MD5

    50741b3f2d7debf5d2bed63d88404029

    SHA1

    56210388a627b926162b36967045be06ffb1aad3

    SHA256

    f2f8732ae464738372ff274b7e481366cecdd2337210d4a3cbcd089c958a730c

    SHA512

    fac6bfe35b1ee08b3d42d330516a260d9cdb4a90bbb0491411a583029b92a59d20af3552372ea8fb3f59442b3945bf524ef284127f397ae7179467080be8e9b3

    Download Submit
  • memory/988-2-0x00000000050C6000-0x00000000050C7000-memory.dmp
    Filesize

    4KB

    Download
  • memory/988-3-0x0000000005530000-0x0000000005531000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1376-11-0x00000000041E0000-0x00000000041E1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1376-12-0x00000000041E0000-0x00000000041E1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/2704-8-0x0000000004F16000-0x0000000004F17000-memory.dmp
    Filesize

    4KB

    Download
  • memory/2704-9-0x00000000053D0000-0x00000000053D1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3128-5-0x00000000011C0000-0x00000000011D6000-memory.dmp
    Filesize

    88KB

    Download