Resubmissions

13-03-2023 10:54

230313-mz23taca8s 10

13-03-2023 10:30

230313-mka1saca21 10

Analysis

  • max time kernel
    210s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    13-03-2023 10:54

General

  • Target

    a6b58dd392fd903d5e247fa25c752b40cbb648db89186a14db2f074c132854a6.exe

  • Size

    284KB

  • MD5

    d21e88369dc69042d256dc59263d5b61

  • SHA1

    575e789b0b3bc16a4f44fe6151af4d41cfd630b5

  • SHA256

    a6b58dd392fd903d5e247fa25c752b40cbb648db89186a14db2f074c132854a6

  • SHA512

    ea5d31d708a0aa4b700788767819a1f5be02b4c61119725f6dd7ecda72f19809b360ae39692f6933e5d3404180bee94bd1337d8894baf7654ece89c199db5a8b

  • SSDEEP

    3072:Ui/i1bLhJ1h8iimVIPI2CbC0k6PJRwlNBsTUqVnPEx/eDU6gNZCIpITIQWyQCk16:9sLwqtTbE6BRwlN6UMPG2Y60nDjCcQT

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://potunulit.org/

http://hutnilior.net/

http://bulimu55t.net/

http://soryytlic4.net/

http://novanosa5org.org/

http://nuljjjnuli.org/

http://tolilolihul.net/

http://somatoka51hub.net/

http://hujukui3.net/

http://bukubuka1.net/

http://golilopaster.org/

http://newzelannd66.org/

http://otriluyttn.org/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Checks SCSI registry key(s) 3 TTPs 9 IoCs

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

  • Modifies registry class 60 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a6b58dd392fd903d5e247fa25c752b40cbb648db89186a14db2f074c132854a6.exe
    "C:\Users\Admin\AppData\Local\Temp\a6b58dd392fd903d5e247fa25c752b40cbb648db89186a14db2f074c132854a6.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2012
  • C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    1⤵
      PID:1980
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x568
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:632
    • C:\Users\Admin\AppData\Local\Temp\a6b58dd392fd903d5e247fa25c752b40cbb648db89186a14db2f074c132854a6.exe
      "C:\Users\Admin\AppData\Local\Temp\a6b58dd392fd903d5e247fa25c752b40cbb648db89186a14db2f074c132854a6.exe"
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:604
    • C:\Users\Admin\AppData\Local\Temp\a6b58dd392fd903d5e247fa25c752b40cbb648db89186a14db2f074c132854a6.exe
      "C:\Users\Admin\AppData\Local\Temp\a6b58dd392fd903d5e247fa25c752b40cbb648db89186a14db2f074c132854a6.exe"
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:1988

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Discovery

    Query Registry

    1
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/604-62-0x0000000000400000-0x00000000004CA000-memory.dmp
      Filesize

      808KB

    • memory/1244-56-0x0000000004840000-0x0000000004856000-memory.dmp
      Filesize

      88KB

    • memory/1244-61-0x0000000004930000-0x0000000004946000-memory.dmp
      Filesize

      88KB

    • memory/1244-68-0x0000000003C70000-0x0000000003C86000-memory.dmp
      Filesize

      88KB

    • memory/1988-69-0x0000000000400000-0x00000000004CA000-memory.dmp
      Filesize

      808KB

    • memory/2012-55-0x0000000000220000-0x0000000000229000-memory.dmp
      Filesize

      36KB

    • memory/2012-57-0x0000000000400000-0x00000000004CA000-memory.dmp
      Filesize

      808KB