Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/01/2024, 02:09

General

  • Target
    7e9acb5b9dd42cebd1bc1fd896730da3.exe
  • Size 2.5MB
  • Sample240129-clfybahahp
  • SHA256 b7915e2c423abfd40c013439cc726587a44fc207696637b2a431abce68963dd4
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • nullmixer

C2
  • http://hsiens.xyz/

Extracted

Family
  • privateloader

C2
  • http://37.0.10.214/proxies.txt

  • http://37.0.10.244/server.txt

  • http://wfsdragon.ru/api/setStats.php

  • 37.0.10.237

Extracted

Family
  • vidar

Version
  • 40.1

Botnet
  • 706

C2
  • https://eduarroma.tumblr.com/

Attributes
  • profile_id

    706

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://varmisende.com/upload/

  • http://fernandomayol.com/upload/

  • http://nextlytm.com/upload/

  • http://people4jan.com/upload/

  • http://asfaltwerk.com/upload/

rc4.i32
rc4.i32

Signatures

  • NullMixer

    NullMixer is a malware dropper leading to an infection chain of a wide variety of malware families.

  • PrivateLoader

    PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar Stealer 3 IoCs
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
  • ASPack v2.12-2.42 3 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 11 IoCs
  • Loads dropped DLL 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 63 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\7e9acb5b9dd42cebd1bc1fd896730da3.exe
    "C:\Users\Admin\AppData\Local\Temp\7e9acb5b9dd42cebd1bc1fd896730da3.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3732
    • C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\setup_install.exe
      "C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\setup_install.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4832
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3872
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1316
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4832 -s 576
        3⤵
        • Program crash
        PID:1304
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c Fri05090e6b571e139.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2320
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c Fri058f479171732c959.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1356
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c Fri051bef0a158b9.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4376
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c Fri05cb95f8bb00f6e1c.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4896
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c Fri050dad867a09bc1.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3768
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c Fri059bb475f9c.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1968
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c Fri05b4b202015e2b3c.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3744
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c Fri05acd872029bc7.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2900
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c Fri052297d9e8ac1.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3404
  • C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri058f479171732c959.exe
    Fri058f479171732c959.exe
    1⤵
    • Executes dropped EXE
    PID:1468
  • C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri050dad867a09bc1.exe
    Fri050dad867a09bc1.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:1352
    • C:\Users\Admin\AppData\Local\Temp\is-L880P.tmp\Fri050dad867a09bc1.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-L880P.tmp\Fri050dad867a09bc1.tmp" /SL5="$800F4,506086,422400,C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri050dad867a09bc1.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1248
  • C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri051bef0a158b9.exe
    Fri051bef0a158b9.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3800
  • C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri052297d9e8ac1.exe
    Fri052297d9e8ac1.exe
    1⤵
    • Executes dropped EXE
    PID:4532
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4832 -ip 4832
    1⤵
      PID:3020
    • C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri05acd872029bc7.exe
      Fri05acd872029bc7.exe
      1⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:4012
    • C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri05b4b202015e2b3c.exe
      Fri05b4b202015e2b3c.exe
      1⤵
      • Executes dropped EXE
      PID:2248
    • C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri05cb95f8bb00f6e1c.exe
      Fri05cb95f8bb00f6e1c.exe
      1⤵
      • Executes dropped EXE
      PID:2064
    • C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri059bb475f9c.exe
      Fri059bb475f9c.exe
      1⤵
      • Executes dropped EXE
      PID:3012
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3012 -s 1028
        2⤵
        • Program crash
        PID:1692
    • C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri05090e6b571e139.exe
      Fri05090e6b571e139.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1588
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3012 -ip 3012
      1⤵
        PID:3912
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Modifies Installed Components in the registry
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        PID:876

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            Fri05090e6b571e139.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri05090e6b571e139.exe
            • Size 8KB
            • SHA256 ed6d502c7c263fd9bd28324f68b287aea158203d0c5154ca07a9bcd059aa2980
            • MD5 SHA1 SHA512 SSDEEP

            Fri050dad867a09bc1.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri050dad867a09bc1.exe
            • Size 757KB
            • SHA256 e045b4a1c9f6640814f6e39903e1f03f2c7f1e3b3d1c6dbf07a409732655eff4
            • MD5 SHA1 SHA512 SSDEEP

            Fri051bef0a158b9.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri051bef0a158b9.exe
            • Size 152KB
            • SHA256 90b166a2fe38966f15be10d4b4c4d94a0b734f1163849afc8eae7a1b413569f2
            • MD5 SHA1 SHA512 SSDEEP

            Fri052297d9e8ac1.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri052297d9e8ac1.exe
            • Size 100KB
            • SHA256 f0a03868c41f48c86446225487eda0e92fb26319174209c55bd0a941537d3f5a
            • MD5 SHA1 SHA512 SSDEEP

            Fri058f479171732c959.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri058f479171732c959.exe
            • Size 705KB
            • SHA256 db9b91b2ddf405d6003df01fee5d9c2e19ab3da8c7e5e5a8a91b9c49cef97ee7
            • MD5 SHA1 SHA512 SSDEEP

            Fri058f479171732c959.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri058f479171732c959.exe
            • Size 512KB
            • SHA256 40bd58e88df2c37421c98f8eb21676a1026678e21807dbb56e7956dbb5d336ee
            • MD5 SHA1 SHA512 SSDEEP

            Fri059bb475f9c.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri059bb475f9c.exe
            • Size 481KB
            • SHA256 2cbc6cc15b39822076ff616f93e1e836035cbe6c97e84bb32a54a927e6df6ecc
            • MD5 SHA1 SHA512 SSDEEP

            Fri059bb475f9c.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri059bb475f9c.exe
            • Size 601KB
            • SHA256 8ef8ba722aa90bce9fc68e9f215284d88816dcd050a5d11641cad87e0f78cf81
            • MD5 SHA1 SHA512 SSDEEP

            Fri05acd872029bc7.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri05acd872029bc7.exe
            • Size 265KB
            • SHA256 6b6af48ae24c38ac2a3a6e333bae6039a18184461b50bce8dcc552b86ce8b482
            • MD5 SHA1 SHA512 SSDEEP

            Fri05b4b202015e2b3c.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri05b4b202015e2b3c.exe
            • Size 212KB
            • SHA256 b4d5ca1118bde5f5385c84e023c62930595aba9bba6bd1589d1cf30ded85aef1
            • MD5 SHA1 SHA512 SSDEEP

            Fri05cb95f8bb00f6e1c.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\Fri05cb95f8bb00f6e1c.exe
            • Size 1004KB
            • SHA256 1af55649a731abb95d71e2e49693a7bcf87270eb4f8712b747f7e04a0a2a3031
            • MD5 SHA1 SHA512 SSDEEP

            libcurl.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\libcurl.dll
            • Size 218KB
            • SHA256 0de53e7be51789adaec5294346220b20f793e7f8d153a3c110a92d658760697e
            • MD5 SHA1 SHA512 SSDEEP

            libcurlpp.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\libcurlpp.dll
            • Size 54KB
            • SHA256 43e86d650a68f1f91fa2f4375aff2720e934aa78fa3d33e06363122bf5a9535f
            • MD5 SHA1 SHA512 SSDEEP

            libgcc_s_dw2-1.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\libgcc_s_dw2-1.dll
            • Size 113KB
            • SHA256 59a466f77584438fc3abc0f43edc0fc99d41851726827a008841f05cfe12da7e
            • MD5 SHA1 SHA512 SSDEEP

            libstdc++-6.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\libstdc++-6.dll
            • Size 647KB
            • SHA256 97de47068327bb822b33c7106f9cbb489480901a6749513ef5c31d229dcaca87
            • MD5 SHA1 SHA512 SSDEEP

            libwinpthread-1.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\libwinpthread-1.dll
            • Size 69KB
            • SHA256 509cb1d1443b623a02562ac760bced540e327c65157ffa938a22f75e38155723
            • MD5 SHA1 SHA512 SSDEEP

            setup_install.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\setup_install.exe
            • Size 2.1MB
            • SHA256 d52060e481348e9ed76f8866f5ba51fbfa145c45941a738f6742624222c8db35
            • MD5 SHA1 SHA512 SSDEEP

            setup_install.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS49E689B7\setup_install.exe
            • Size 1.6MB
            • SHA256 39266454fd952e55c673788fef004f009d74e670cc8dfe8898f1ef9ffaf8abd7
            • MD5 SHA1 SHA512 SSDEEP

            __PSScriptPolicyTest_uqfaf5o1.uhi.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uqfaf5o1.uhi.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512

            Fri050dad867a09bc1.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\is-L880P.tmp\Fri050dad867a09bc1.tmp
            • Size 1.0MB
            • SHA256 b32cbc6b83581d4dc39aa7106e983e693c5df0e0a28f146f0a37bc0c23442047
            • MD5 SHA1 SHA512 SSDEEP

            idp.dll

            • Path C:\Users\Admin\AppData\Local\Temp\is-NBIHJ.tmp\idp.dll
            • Size 216KB
            • SHA256 203d7b61eac96de865ab3b586160e72c78d93ab5532b13d50ef27174126fd006
            • MD5 SHA1 SHA512 SSDEEP

            memory/1248-104-0x0000000002120000-0x0000000002121000-memory.dmp

            memory/1248-109-0x0000000000400000-0x0000000000516000-memory.dmp

            memory/1316-93-0x0000000003050000-0x0000000003086000-memory.dmp

            memory/1316-151-0x0000000006C20000-0x0000000006C52000-memory.dmp

            memory/1316-128-0x0000000006190000-0x00000000064E4000-memory.dmp

            memory/1316-180-0x0000000072EE0000-0x0000000073690000-memory.dmp

            memory/1316-139-0x0000000006640000-0x000000000665E000-memory.dmp

            memory/1316-176-0x0000000007C80000-0x0000000007C9A000-memory.dmp

            memory/1316-177-0x0000000007C70000-0x0000000007C78000-memory.dmp

            memory/1316-175-0x0000000007B90000-0x0000000007BA4000-memory.dmp

            memory/1316-174-0x0000000007B80000-0x0000000007B8E000-memory.dmp

            memory/1316-116-0x0000000006020000-0x0000000006086000-memory.dmp

            memory/1316-169-0x0000000007B50000-0x0000000007B61000-memory.dmp

            memory/1316-140-0x0000000006680000-0x00000000066CC000-memory.dmp

            memory/1316-168-0x0000000007BC0000-0x0000000007C56000-memory.dmp

            memory/1316-167-0x00000000079D0000-0x00000000079DA000-memory.dmp

            memory/1316-150-0x0000000002CA0000-0x0000000002CB0000-memory.dmp

            memory/1316-115-0x0000000005F40000-0x0000000005FA6000-memory.dmp

            memory/1316-114-0x00000000057E0000-0x0000000005802000-memory.dmp

            memory/1316-165-0x0000000007890000-0x00000000078AA000-memory.dmp

            memory/1316-102-0x0000000072EE0000-0x0000000073690000-memory.dmp

            memory/1316-164-0x0000000008010000-0x000000000868A000-memory.dmp

            memory/1316-163-0x00000000078E0000-0x0000000007983000-memory.dmp

            memory/1316-105-0x0000000005820000-0x0000000005E48000-memory.dmp

            memory/1316-103-0x0000000002CA0000-0x0000000002CB0000-memory.dmp

            memory/1316-152-0x0000000074C10000-0x0000000074C5C000-memory.dmp

            memory/1316-162-0x0000000006BC0000-0x0000000006BDE000-memory.dmp

            memory/1352-113-0x0000000000400000-0x000000000046D000-memory.dmp

            memory/1352-71-0x0000000000400000-0x000000000046D000-memory.dmp

            memory/1588-92-0x00007FFE1B220000-0x00007FFE1BCE1000-memory.dmp

            memory/1588-90-0x000000001ACB0000-0x000000001ACC0000-memory.dmp

            memory/1588-82-0x0000000000090000-0x0000000000098000-memory.dmp

            memory/1588-181-0x000000001ACB0000-0x000000001ACC0000-memory.dmp

            memory/3012-136-0x0000000000400000-0x0000000002400000-memory.dmp

            memory/3012-166-0x0000000000400000-0x0000000002400000-memory.dmp

            memory/3012-138-0x00000000024D0000-0x000000000256D000-memory.dmp

            memory/3012-137-0x0000000002780000-0x0000000002880000-memory.dmp

            memory/3248-170-0x00000000016B0000-0x00000000016C5000-memory.dmp

            memory/3800-91-0x0000000001470000-0x000000000148E000-memory.dmp

            memory/3800-78-0x0000000000C90000-0x0000000000CBC000-memory.dmp

            memory/3800-87-0x00007FFE1B220000-0x00007FFE1BCE1000-memory.dmp

            memory/3800-89-0x000000001B7A0000-0x000000001B7B0000-memory.dmp

            memory/3800-129-0x00007FFE1B220000-0x00007FFE1BCE1000-memory.dmp

            memory/4012-117-0x0000000000400000-0x00000000023AC000-memory.dmp

            memory/4012-172-0x0000000000400000-0x00000000023AC000-memory.dmp

            memory/4012-111-0x00000000001C0000-0x00000000001C9000-memory.dmp

            memory/4012-110-0x0000000002620000-0x0000000002720000-memory.dmp

            memory/4832-130-0x0000000000400000-0x000000000051B000-memory.dmp

            memory/4832-50-0x000000006B440000-0x000000006B4CF000-memory.dmp

            memory/4832-134-0x000000006EB40000-0x000000006EB63000-memory.dmp

            memory/4832-52-0x000000006B440000-0x000000006B4CF000-memory.dmp

            memory/4832-55-0x000000006FE40000-0x000000006FFC6000-memory.dmp

            memory/4832-53-0x0000000064940000-0x0000000064959000-memory.dmp

            memory/4832-56-0x000000006FE40000-0x000000006FFC6000-memory.dmp

            memory/4832-54-0x000000006B440000-0x000000006B4CF000-memory.dmp

            memory/4832-51-0x000000006FE40000-0x000000006FFC6000-memory.dmp

            memory/4832-48-0x000000006B280000-0x000000006B2A6000-memory.dmp

            memory/4832-131-0x0000000064940000-0x0000000064959000-memory.dmp

            memory/4832-57-0x000000006FE40000-0x000000006FFC6000-memory.dmp

            memory/4832-132-0x000000006B440000-0x000000006B4CF000-memory.dmp

            memory/4832-45-0x000000006B440000-0x000000006B4CF000-memory.dmp

            memory/4832-135-0x000000006FE40000-0x000000006FFC6000-memory.dmp

            memory/4832-58-0x000000006FE40000-0x000000006FFC6000-memory.dmp

            memory/4832-133-0x000000006B280000-0x000000006B2A6000-memory.dmp

            memory/4832-60-0x000000006B280000-0x000000006B2A6000-memory.dmp

            memory/4832-59-0x000000006B280000-0x000000006B2A6000-memory.dmp