Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-04-2024 10:10

General

  • Target

    274602f22d15c9edfaa9170361b6fae8593699ed5d37efd259e2363a66bd666b.exe

  • Size

    1.0MB

  • MD5

    44fadc7ff5089a660f20e84491564413

  • SHA1

    bc55f02398f9d4754267dd6ec32f8ce32b81a0f5

  • SHA256

    274602f22d15c9edfaa9170361b6fae8593699ed5d37efd259e2363a66bd666b

  • SHA512

    5cf14c885e6e685f4984057d19013ef4edb9550da1c6848654b81d0332d53365b512bfe9f63b0318f203d4cbf8d24ef315da6c88b285311dafa604bee84646ba

  • SSDEEP

    12288:WMrmy90n/LFPEu33VEA1x/KkzNP73Yxbp4YM2ixo53HtT6Aro9UIUQZf0ZHp/7nC:EyyRVEAXKk13YohxQdeAro2INl0j7C

Malware Config

Extracted

Family

redline

Botnet

breha

C2

77.91.124.55:19071

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

rc4.i32
rc4.i32

Signatures

  • Detect Mystic stealer payload 1 IoCs
  • Modifies Windows Defender Real-time Protection settings 3 TTPs 6 IoCs
  • Mystic

    Mystic is an infostealer written in C++.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 2 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Executes dropped EXE 8 IoCs
  • Adds Run key to start application 2 TTPs 5 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Launches sc.exe 1 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • 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 1 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 38 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\274602f22d15c9edfaa9170361b6fae8593699ed5d37efd259e2363a66bd666b.exe
    "C:\Users\Admin\AppData\Local\Temp\274602f22d15c9edfaa9170361b6fae8593699ed5d37efd259e2363a66bd666b.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2020
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\oA4AN91.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\oA4AN91.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1428
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rc3uT08.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rc3uT08.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:896
        • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\nF0Jx43.exe
          C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\nF0Jx43.exe
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of WriteProcessMemory
          PID:216
          • C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\Cf6dU97.exe
            C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\Cf6dU97.exe
            5⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious use of WriteProcessMemory
            PID:1096
            • C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\1yx54Hw1.exe
              C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\1yx54Hw1.exe
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:3460
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
                7⤵
                • Modifies Windows Defender Real-time Protection settings
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:2116
            • C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\2sN0158.exe
              C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\2sN0158.exe
              6⤵
              • Executes dropped EXE
              PID:4436
          • C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\3WJ47pc.exe
            C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\3WJ47pc.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1572
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
              6⤵
              • Checks SCSI registry key(s)
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious behavior: MapViewOfSection
              PID:2852
        • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\4LH425kQ.exe
          C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\4LH425kQ.exe
          4⤵
          • Executes dropped EXE
          PID:1208
  • C:\Windows\system32\sc.exe
    C:\Windows\system32\sc.exe start wuauserv
    1⤵
    • Launches sc.exe
    PID:3676

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\oA4AN91.exe

    Filesize

    894KB

    MD5

    236b711f28ac5ccf0b9734d135d8ddf9

    SHA1

    236b45f282987552aca93d7be8ef0b8c76a9cebf

    SHA256

    8ce676719f45ea1b9876a0335ed6c3788689048fe0506c37665caf3370d9d428

    SHA512

    799bef5467d99bc1dd770fa222a8e01dfc1046e184f4de7b79fc436db9dc6c6b9b86023ed8a90ce03ba26db29f2db54fc856f755f0e3bfaf7ece7c85e4ad3989

  • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rc3uT08.exe

    Filesize

    711KB

    MD5

    da9bc7ef03719a2f15976306d1731b07

    SHA1

    d210da3cb0c12aceeb1703cc5a327adb0c075272

    SHA256

    26de2b3ef64a7a8b2a44f88f7e6c9e733bee1dc3ed9dcdef502d6c854bedaf75

    SHA512

    dac5f7e68dbe96c8de860af3b37f2def504b0f98bdf6fb1a30e51f4853c2e719958a228234ffaf36362f876fbdaf39e051c806a67ba903035af517d408029c78

  • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\4LH425kQ.exe

    Filesize

    221KB

    MD5

    8905918bd7e4f4aeda3a804d81f9ee40

    SHA1

    3c488a81539116085a1c22df26085f798f7202c8

    SHA256

    0978a728ad05915e0be6a7283d30acca18893ef7a4b0939d316de70415e0efde

    SHA512

    6530c4209651aa34f4c91fe5b737dc933f02a8ea3710a6f3fa0bff3130720740de4bec308b35cb31255cec6c85e585036af849ace6e6268ef1d9f9a761fe6a56

  • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\nF0Jx43.exe

    Filesize

    537KB

    MD5

    d730cd47eac7177ed96029f9b80de900

    SHA1

    dc2e197a8626688e3154aa10631982da298edf04

    SHA256

    4543f2fa5c657b2e7c31445e2134a0cb156fe95dfcee50125725aca92d28621e

    SHA512

    bbed9d49a0eb3a1cea9d1a04168910d68880cdbb6ffc396e76cb95882c5ae6cdf3008c100cd5b8aa74ec0a6a86f927bc922586d97851c7c1afb86d07fc44fcba

  • C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\3WJ47pc.exe

    Filesize

    252KB

    MD5

    9a03accf2f85700608abebfce8321185

    SHA1

    b48409bd1d7b20946c48c3519b8e0af5eebe5f34

    SHA256

    79c7843f253d08168ce416a76429e28bb019a3a12cdc5f4ec2c40e93a25d3d2f

    SHA512

    f726053aa77e8fa70254c12da901a38722bd3b0b96cfc9808a169a418d247b34ec972c43cc8b4b2cfb15d18a8a80ddcadca8063a51d446a204b583c9b805aeb9

  • C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\Cf6dU97.exe

    Filesize

    300KB

    MD5

    bb319559736d8f6559cc8c349869d6f5

    SHA1

    6cab8ea79da3227090f8099abf8f429f224c5adb

    SHA256

    c9956d5d6329fbcceb652201a28efd45b916fef970124ea183abd40b1dc41627

    SHA512

    43b25ca086ca1e2512baaffa7b5e9dc969e644285b3469208246817c4dbce0ce43cda39fa70f75544625957a689fdabe17fdb3c91115d94886d23aba2a6a9487

  • C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\1yx54Hw1.exe

    Filesize

    154KB

    MD5

    098478afedb77e3ad162dcb60ba1079e

    SHA1

    aae5fd48aaf7d271c23130197dcfdd8791307d6f

    SHA256

    9ec13c3b726ec3ca9cf66364b6db9f252c3eaaf124b53d032564aec8e9ee8541

    SHA512

    145ab134ea391792a91c746b865ac48f2cafc8cec71664b6ca7b8cfc28fe508a953a095bb26f6a69d2066b8489ce02c7b0e82eae6ae5adc0e6b03435de86b14f

  • C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\2sN0158.exe

    Filesize

    180KB

    MD5

    53e28e07671d832a65fbfe3aa38b6678

    SHA1

    6f9ea0ed8109030511c2c09c848f66bd0d16d1e1

    SHA256

    5c59db3277aefb761d4b814aaf5f5acd1fd1a0ea154dc565c78b082a3df4566e

    SHA512

    053f8048230583e741c34f6714c9684ed1312c064cd0c81d99f09e20192b7ddecb53c9c55e4aceac774315315be7e13de98f2cea4e5487f2d9e9dfa2ce3979c9

  • memory/1208-50-0x0000000007CF0000-0x0000000008294000-memory.dmp

    Filesize

    5.6MB

  • memory/1208-53-0x00000000053A0000-0x00000000053AA000-memory.dmp

    Filesize

    40KB

  • memory/1208-69-0x00000000078E0000-0x00000000078F0000-memory.dmp

    Filesize

    64KB

  • memory/1208-68-0x0000000074200000-0x00000000749B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1208-48-0x0000000000940000-0x000000000097E000-memory.dmp

    Filesize

    248KB

  • memory/1208-49-0x0000000074200000-0x00000000749B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1208-58-0x0000000007B80000-0x0000000007BCC000-memory.dmp

    Filesize

    304KB

  • memory/1208-51-0x0000000007740000-0x00000000077D2000-memory.dmp

    Filesize

    584KB

  • memory/1208-52-0x00000000078E0000-0x00000000078F0000-memory.dmp

    Filesize

    64KB

  • memory/1208-57-0x0000000007A00000-0x0000000007A3C000-memory.dmp

    Filesize

    240KB

  • memory/1208-54-0x00000000088C0000-0x0000000008ED8000-memory.dmp

    Filesize

    6.1MB

  • memory/1208-55-0x0000000007A70000-0x0000000007B7A000-memory.dmp

    Filesize

    1.0MB

  • memory/1208-56-0x00000000079A0000-0x00000000079B2000-memory.dmp

    Filesize

    72KB

  • memory/2116-35-0x0000000000400000-0x000000000040A000-memory.dmp

    Filesize

    40KB

  • memory/2116-64-0x0000000074200000-0x00000000749B0000-memory.dmp

    Filesize

    7.7MB

  • memory/2116-42-0x0000000074200000-0x00000000749B0000-memory.dmp

    Filesize

    7.7MB

  • memory/2852-43-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2852-61-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2852-44-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3432-59-0x00000000022F0000-0x0000000002306000-memory.dmp

    Filesize

    88KB