Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/04/2023, 11:10

General

  • Target

    4a597691ba57ab7af0f8f83514707efe9e1cdc1f7c9d50e99b8e3a83cd9bafda.exe

  • Size

    352KB

  • MD5

    50de4ca0dd1db8ef6d1583c82a7dbe9c

  • SHA1

    ccd35470b070888c787296b507d4a53aad34ea22

  • SHA256

    4a597691ba57ab7af0f8f83514707efe9e1cdc1f7c9d50e99b8e3a83cd9bafda

  • SHA512

    f41681ae87e81fd9694abc37d94c73d3fb8976cf708c08166158a62a99fbd98c83fd9ada15b65a57e701892f043a5804fb4c4f44f42b7321f3685d3c422c8894

  • SSDEEP

    6144:hW2G250BMJqUa9LPvSvZjoooS0eR0dciKwe4:hVb0BMJq39LPvsuDDTKt4

Malware Config

Extracted

Family

smokeloader

Botnet

pub4

Extracted

Family

smokeloader

Version

2022

C2

http://aapu.at/tmp/

http://poudineh.com/tmp/

http://firsttrusteedrx.ru/tmp/

http://kingpirate.ru/tmp/

rc4.i32
rc4.i32

Extracted

Family

rhadamanthys

C2

http://179.43.142.201/img/favicon.png

Signatures

  • Detect rhadamanthys stealer shellcode 4 IoCs
  • Rhadamanthys

    Rhadamanthys is an info stealer written in C++ first seen in August 2022.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 6 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 7 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.

  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a597691ba57ab7af0f8f83514707efe9e1cdc1f7c9d50e99b8e3a83cd9bafda.exe
    "C:\Users\Admin\AppData\Local\Temp\4a597691ba57ab7af0f8f83514707efe9e1cdc1f7c9d50e99b8e3a83cd9bafda.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:4300
  • C:\Users\Admin\AppData\Local\Temp\E13D.exe
    C:\Users\Admin\AppData\Local\Temp\E13D.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:1624
    • C:\Windows\system32\dllhost.exe
      "C:\Windows\system32\dllhost.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Checks processor information in registry
      • outlook_office_path
      • outlook_win_path
      PID:1332
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1624 -s 708
      2⤵
      • Program crash
      PID:3136
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1624 -ip 1624
    1⤵
      PID:4552

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\E13D.exe

            Filesize

            424KB

            MD5

            9950feec180e9981d35fe2dd2241efdc

            SHA1

            939ca7f9084b5a28790f56cec45ce5c2006f8ee0

            SHA256

            d221d3fb8d39771f163a440c7f7bf72b3a9db66ae012e0c3d0143a126256de54

            SHA512

            0181a6e3157e47e9a1f75853de96d1deafffe38c80231909e2870758ee4f071c784adcf0031a17a9c4f0f0fc2df32b2cb1159cd0056334c4d281466324dcf36f

          • C:\Users\Admin\AppData\Local\Temp\E13D.exe

            Filesize

            424KB

            MD5

            9950feec180e9981d35fe2dd2241efdc

            SHA1

            939ca7f9084b5a28790f56cec45ce5c2006f8ee0

            SHA256

            d221d3fb8d39771f163a440c7f7bf72b3a9db66ae012e0c3d0143a126256de54

            SHA512

            0181a6e3157e47e9a1f75853de96d1deafffe38c80231909e2870758ee4f071c784adcf0031a17a9c4f0f0fc2df32b2cb1159cd0056334c4d281466324dcf36f

          • memory/1332-155-0x0000020945440000-0x0000020945441000-memory.dmp

            Filesize

            4KB

          • memory/1332-166-0x00007FF4E38F0000-0x00007FF4E39EA000-memory.dmp

            Filesize

            1000KB

          • memory/1332-165-0x00007FF4E38F0000-0x00007FF4E39EA000-memory.dmp

            Filesize

            1000KB

          • memory/1332-164-0x00007FF4E38F0000-0x00007FF4E39EA000-memory.dmp

            Filesize

            1000KB

          • memory/1332-163-0x00007FF4E38F0000-0x00007FF4E39EA000-memory.dmp

            Filesize

            1000KB

          • memory/1332-162-0x00007FF4E38F0000-0x00007FF4E39EA000-memory.dmp

            Filesize

            1000KB

          • memory/1332-159-0x00007FF4E38F0000-0x00007FF4E39EA000-memory.dmp

            Filesize

            1000KB

          • memory/1332-158-0x00007FF4E38F0000-0x00007FF4E39EA000-memory.dmp

            Filesize

            1000KB

          • memory/1332-157-0x0000020945750000-0x0000020945757000-memory.dmp

            Filesize

            28KB

          • memory/1624-147-0x0000000000950000-0x000000000097E000-memory.dmp

            Filesize

            184KB

          • memory/1624-156-0x00000000009B0000-0x00000000009CA000-memory.dmp

            Filesize

            104KB

          • memory/1624-154-0x0000000000980000-0x000000000099C000-memory.dmp

            Filesize

            112KB

          • memory/1624-153-0x00000000009B0000-0x00000000009CA000-memory.dmp

            Filesize

            104KB

          • memory/1624-152-0x0000000000980000-0x000000000099C000-memory.dmp

            Filesize

            112KB

          • memory/1624-160-0x0000000000400000-0x000000000080F000-memory.dmp

            Filesize

            4.1MB

          • memory/1624-161-0x0000000000980000-0x000000000099C000-memory.dmp

            Filesize

            112KB

          • memory/1624-151-0x0000000000980000-0x000000000099C000-memory.dmp

            Filesize

            112KB

          • memory/1624-148-0x0000000000400000-0x000000000080F000-memory.dmp

            Filesize

            4.1MB

          • memory/2600-135-0x00000000025D0000-0x00000000025E6000-memory.dmp

            Filesize

            88KB

          • memory/4300-134-0x0000000000980000-0x0000000000989000-memory.dmp

            Filesize

            36KB

          • memory/4300-136-0x0000000000400000-0x00000000007FD000-memory.dmp

            Filesize

            4.0MB