Analysis

  • max time kernel
    121s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-06-2024 15:18

General

  • Target

    #)#NEw_SetUp_33778_P@$$Key#(#/New-Setup.exe

  • Size

    316KB

  • MD5

    c637e5ecf625b72f4bef9d28cd81d612

  • SHA1

    a2c1329d290e508ee9fd0eb81e7f25d57e450f8c

  • SHA256

    111c56593668be63e1e0c79a2d33d9e2d49cdf0c5100663c72045bc6b76e9fe6

  • SHA512

    727d78bab4fab3674eec92ca5f07df6a0095ab3b973dd227c599c70e8493592bb53bb9208cc6270713283ef0065acfad3203ddcf4dcb6d43f8727f09ceaaf2e4

  • SSDEEP

    6144:VzsRSKkhKKXDD2mTLGxelHJ+SBae3VFpSX:6VkhZWEGxelH0SBtfpS

Malware Config

Extracted

Family

stealc

rc4.plain

Signatures

  • Detect Vidar Stealer 7 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 1 IoCs

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

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 32 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\#)#NEw_SetUp_33778_P@$$Key#(#\New-Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\#)#NEw_SetUp_33778_P@$$Key#(#\New-Setup.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:876
    • C:\Windows\SysWOW64\netsh.exe
      C:\Windows\SysWOW64\netsh.exe
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:4616
      • C:\Users\Admin\AppData\Local\Temp\coml.au3
        C:\Users\Admin\AppData\Local\Temp\coml.au3
        3⤵
        • Checks computer location settings
        • Loads dropped DLL
        • Checks processor information in registry
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4744
        • C:\ProgramData\HCBAKJEHDB.exe
          "C:\ProgramData\HCBAKJEHDB.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:1452
          • C:\Windows\SysWOW64\ftp.exe
            C:\Windows\SysWOW64\ftp.exe
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:4436
        • C:\ProgramData\FHIIEHJKKE.exe
          "C:\ProgramData\FHIIEHJKKE.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:1860
          • C:\Windows\SysWOW64\ftp.exe
            C:\Windows\SysWOW64\ftp.exe
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:3140
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3740 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4016
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=2936 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:3
      1⤵
        PID:4244

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Defense Evasion

      Subvert Trust Controls

      1
      T1553

      Install Root Certificate

      1
      T1553.004

      Modify Registry

      1
      T1112

      Credential Access

      Unsecured Credentials

      4
      T1552

      Credentials In Files

      4
      T1552.001

      Discovery

      Query Registry

      3
      T1012

      System Information Discovery

      3
      T1082

      Collection

      Data from Local System

      4
      T1005

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\FHIIEHJKKE.exe
        Filesize

        2.3MB

        MD5

        daaff76b0baf0a1f9cec253560c5db20

        SHA1

        0311cf0eeb4beddd2c69c6e97462595313a41e78

        SHA256

        5706c6f5421a6a34fdcb67e9c9e71283c8fc1c33499904519cbdc6a21e6b071c

        SHA512

        987ca2d67903c65ee1075c4a5250c85840aea26647b1d95a3e73a26dcad053bd4c31df4ca01d6cc0c196fa7e8e84ab63ed4a537f72fc0b1ee4ba09cdb549ddf3

      • C:\ProgramData\HCBAKJEHDB.exe
        Filesize

        8.6MB

        MD5

        6cfddd5ce9ca4bb209bd5d8c2cd80025

        SHA1

        424da82e9edbb6b39a979ab97d84239a1d67c48b

        SHA256

        376e1802b979514ba0e9c73933a8c6a09dd3f1d2a289f420c2202e64503d08a7

        SHA512

        d861130d87bfedc38a97019cba17724067f397e6ffe7e1384175db48c0a177a2e7e256c3c933d0f42766e8077f767d6d4dc8758200852e8ec135736daee7c0f8

      • C:\ProgramData\KKKJEHCGCGDA\mozglue.dll
        Filesize

        593KB

        MD5

        c8fd9be83bc728cc04beffafc2907fe9

        SHA1

        95ab9f701e0024cedfbd312bcfe4e726744c4f2e

        SHA256

        ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

        SHA512

        fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

      • C:\ProgramData\KKKJEHCGCGDA\nss3.dll
        Filesize

        2.0MB

        MD5

        1cc453cdf74f31e4d913ff9c10acdde2

        SHA1

        6e85eae544d6e965f15fa5c39700fa7202f3aafe

        SHA256

        ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

        SHA512

        dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports
        Filesize

        2B

        MD5

        d751713988987e9331980363e24189ce

        SHA1

        97d170e1550eee4afc0af065b78cda302a97674c

        SHA256

        4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

        SHA512

        b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries
        Filesize

        40B

        MD5

        20d4b8fa017a12a108c87f540836e250

        SHA1

        1ac617fac131262b6d3ce1f52f5907e31d5f6f00

        SHA256

        6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d

        SHA512

        507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

      • C:\Users\Admin\AppData\Local\Temp\2c6b338b
        Filesize

        6.8MB

        MD5

        b7969ead58c6a672c306235a4f365551

        SHA1

        e0e525edb2b13d94ed26e20eb1502fb6413a707f

        SHA256

        4adbb0ca0b817d3a41e0733d3345194d8574fca11d7b02c2ec5e773220c58a55

        SHA512

        eba0d47923d2720f7776cb1bdd6d867643b681070287d9979de4f2148169de01e04f82e634d5a0e5a51ef162de7af1d9f794259797b95e58965ed2dfe69ee00a

      • C:\Users\Admin\AppData\Local\Temp\5e992864
        Filesize

        1.1MB

        MD5

        8d443e7cb87cacf0f589ce55599e008f

        SHA1

        c7ff0475a3978271e0a8417ac4a826089c083772

        SHA256

        e2aaaa1a0431aab1616e2b612e9b68448107e6ce71333f9c0ec1763023b72b2a

        SHA512

        c7d0ced6eb9e203d481d1dbdd5965278620c10cdc81c02da9c4f7f99f3f8c61dfe975cf48d4b93ccde9857edb881a77ebe9cd13ae7ef029285d770d767aa74a5

      • C:\Users\Admin\AppData\Local\Temp\5ee71ae2
        Filesize

        951KB

        MD5

        c62f812e250409fbd3c78141984270f2

        SHA1

        9c7c70bb78aa0de4ccf0c2b5d87b37c8a40bd806

        SHA256

        d8617477c800cc10f9b52e90b885117a27266831fb5033647b6b6bd6025380a8

        SHA512

        7573ecac1725f395bbb1661f743d8ee6b029f357d3ef07d0d96ee4ff3548fe06fab105ee72be3e3964d2053de2f44245cca9a061d47c1411949840c84f6e9092

      • C:\Users\Admin\AppData\Local\Temp\5fbec822
        Filesize

        1.1MB

        MD5

        0993cd20420b0480234675d2dd0b7820

        SHA1

        4b2d957b2bdb0fc07b1bca6d71c6b7716838e9e7

        SHA256

        14f302cef8991541b43cfad7f1ec8f6065a6047599fbe4471abe49f86a0f0f50

        SHA512

        0ec9ed0f8e116b340d80c62d7527be07dec1d3deff912d2c1828fe96c74cebfdf7e1e80d9c48fdc989942e0785017c5437dc0b59b087c3c097a726edd27b3cc0

      • C:\Users\Admin\AppData\Local\Temp\5fc81af6
        Filesize

        736KB

        MD5

        eeb94f7078b8a4045fc0c5a3b9103acb

        SHA1

        d037aaccd96266f482815611f1c3322773d48ba9

        SHA256

        804a598d2cee70d9943b7e7007b25edd7db07319a1244b0dc2bb7ebd523d273f

        SHA512

        098d1cbeb6225d3eef66fadc36f6250db40bac827134b5ee83a4698d8c8755f9268b62c3958b7e998310a1265db5946d84ae1ee9a9677cfae4deba501f32fd5b

      • C:\Users\Admin\AppData\Local\Temp\coml.au3
        Filesize

        872KB

        MD5

        c56b5f0201a3b3de53e561fe76912bfd

        SHA1

        2a4062e10a5de813f5688221dbeb3f3ff33eb417

        SHA256

        237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

        SHA512

        195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

      • memory/876-13-0x00007FFCE7F80000-0x00007FFCE80F2000-memory.dmp
        Filesize

        1.4MB

      • memory/876-0-0x00007FFCE7F80000-0x00007FFCE80F2000-memory.dmp
        Filesize

        1.4MB

      • memory/876-11-0x00007FFCE7F98000-0x00007FFCE7F99000-memory.dmp
        Filesize

        4KB

      • memory/876-12-0x00007FFCE7F80000-0x00007FFCE80F2000-memory.dmp
        Filesize

        1.4MB

      • memory/1452-122-0x0000000000150000-0x0000000000663000-memory.dmp
        Filesize

        5.1MB

      • memory/1452-153-0x0000000072A30000-0x0000000072BAB000-memory.dmp
        Filesize

        1.5MB

      • memory/1452-143-0x0000000072A30000-0x0000000072BAB000-memory.dmp
        Filesize

        1.5MB

      • memory/1452-146-0x00007FFD07D10000-0x00007FFD07F05000-memory.dmp
        Filesize

        2.0MB

      • memory/1860-155-0x0000000072A30000-0x0000000072BAB000-memory.dmp
        Filesize

        1.5MB

      • memory/1860-137-0x0000000000AC0000-0x0000000000D08000-memory.dmp
        Filesize

        2.3MB

      • memory/1860-145-0x0000000072A30000-0x0000000072BAB000-memory.dmp
        Filesize

        1.5MB

      • memory/1860-147-0x00007FFD07D10000-0x00007FFD07F05000-memory.dmp
        Filesize

        2.0MB

      • memory/3140-161-0x00007FFD07D10000-0x00007FFD07F05000-memory.dmp
        Filesize

        2.0MB

      • memory/4436-160-0x00007FFD07D10000-0x00007FFD07F05000-memory.dmp
        Filesize

        2.0MB

      • memory/4616-16-0x00007FFD07D10000-0x00007FFD07F05000-memory.dmp
        Filesize

        2.0MB

      • memory/4744-25-0x0000000000800000-0x0000000000F4B000-memory.dmp
        Filesize

        7.3MB

      • memory/4744-152-0x0000000000800000-0x0000000000F4B000-memory.dmp
        Filesize

        7.3MB

      • memory/4744-148-0x0000000000800000-0x0000000000F4B000-memory.dmp
        Filesize

        7.3MB

      • memory/4744-106-0x0000000000800000-0x0000000000F4B000-memory.dmp
        Filesize

        7.3MB

      • memory/4744-29-0x0000000061E00000-0x0000000061EF3000-memory.dmp
        Filesize

        972KB

      • memory/4744-28-0x0000000000800000-0x0000000000F4B000-memory.dmp
        Filesize

        7.3MB

      • memory/4744-159-0x0000000000800000-0x0000000000F4B000-memory.dmp
        Filesize

        7.3MB

      • memory/4744-24-0x00007FFD07D10000-0x00007FFD07F05000-memory.dmp
        Filesize

        2.0MB

      • memory/4744-22-0x0000000000800000-0x0000000000F4B000-memory.dmp
        Filesize

        7.3MB