Analysis

  • max time kernel
    128s
  • max time network
    143s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    02/09/2024, 16:12

General

  • Target
    66d5ddcec1520_shtr.exe
  • Size 206KB
  • Sample240902-tnj67avdkf
  • SHA256 86bb9a397e62d756578dbe6c40cc07050f2066db6fb5d54499e03469a7cdccd5
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

Botnet
  • default

C2
  • http://46.8.231.109

Attributes
  • url_path

    /c4754d4f680ead72.php

Extracted

Family
  • vidar

C2
  • https://t.me/edm0d

  • https://steamcommunity.com/profiles/76561199768374681

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0

Extracted

Family
  • lumma

C2
  • https://stamppreewntnq.shop/api

  • https://locatedblsoqp.shop/api

Signatures

  • Detect Vidar Stealer 18 IoCs
  • Lumma Stealer, LummaC

    Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 4 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 web browsers 2 TTPs

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

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • 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 5 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 14 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 6 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\66d5ddcec1520_shtr.exe
    "C:\Users\Admin\AppData\Local\Temp\66d5ddcec1520_shtr.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5068
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2996
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminIEHIIIJDAA.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1920
        • C:\Users\AdminIEHIIIJDAA.exe
          "C:\Users\AdminIEHIIIJDAA.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4728
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            5⤵
            • Loads dropped DLL
            • System Location Discovery: System Language Discovery
            • Checks processor information in registry
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:756
            • C:\ProgramData\ECAEGHIJEH.exe
              "C:\ProgramData\ECAEGHIJEH.exe"
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:860
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:520
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 520 -s 1296
                  8⤵
                  • Program crash
                  PID:4268
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 520 -s 1236
                  8⤵
                  • Program crash
                  PID:2588
            • C:\ProgramData\BKJEHCAKFB.exe
              "C:\ProgramData\BKJEHCAKFB.exe"
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:3364
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                • Checks processor information in registry
                • Suspicious behavior: EnumeratesProcesses
                PID:4596
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\FBGIDHCAAKEB" & exit
              6⤵
              • System Location Discovery: System Language Discovery
              PID:3196
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 10
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:3392
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminIEBAAFCAFC.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2148
        • C:\Users\AdminIEBAAFCAFC.exe
          "C:\Users\AdminIEBAAFCAFC.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2552
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            5⤵
              PID:1792
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:1840
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1840 -s 1332
                6⤵
                • Program crash
                PID:4332
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1840 -s 1304
                6⤵
                • Program crash
                PID:316

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          IJEGHJ

          • Path C:\ProgramData\AKFCBFHJDHJK\IJEGHJ
          • Size 20KB
          • SHA256 4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988
          • MD5 SHA1 SHA512 SSDEEP

          KKEHDB

          • Path C:\ProgramData\AKFCBFHJDHJK\KKEHDB
          • Size 46KB
          • SHA256 522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9
          • MD5 SHA1 SHA512 SSDEEP

          IEBAAF

          • Path C:\ProgramData\FBGIDHCAAKEB\IEBAAF
          • Size 6KB
          • SHA256 a9aba6aa1be260762fef09cbf85bae4e0ed5ed80dc01a678e9dfcbfc96e8f2d0
          • MD5 SHA1 SHA512 SSDEEP

          KKEHDB

          • Path C:\ProgramData\FBGIDHCAAKEB\KKEHDB
          • Size 92KB
          • SHA256 2be0a96da90da69fbc34b8e7747e89ce57dfc4fb58ed6c79e0fc21cb7c6791b7
          • MD5 SHA1 SHA512 SSDEEP

          freebl3.dll

          • Path C:\ProgramData\freebl3.dll
          • Size 669KB
          • SHA256 edd043f2005dbd5902fc421eabb9472a7266950c5cbaca34e2d590b17d12f5fa
          • MD5 SHA1 SHA512 SSDEEP

          msvcp140.dll

          • Path C:\ProgramData\msvcp140.dll
          • Size 439KB
          • SHA256 5136a49a682ac8d7f1ce71b211de8688fce42ed57210af087a8e2dbc8a934062
          • MD5 SHA1 SHA512 SSDEEP

          softokn3.dll

          • Path C:\ProgramData\softokn3.dll
          • Size 251KB
          • SHA256 74ebbac956e519e16923abdc5ab8912098a4f64e38ddcb2eae23969f306afe5a
          • MD5 SHA1 SHA512 SSDEEP

          vcruntime140.dll

          • Path C:\ProgramData\vcruntime140.dll
          • Size 78KB
          • SHA256 8934aaeb65b6e6d253dfe72dea5d65856bd871e989d5d3a2a35edfe867bb4825
          • MD5 SHA1 SHA512 SSDEEP

          AdminIEBAAFCAFC.exe

          • Path C:\Users\AdminIEBAAFCAFC.exe
          • Size 334KB
          • SHA256 c45735085c630196f711708160c78f204d8fa3fd36dc7c49cfc039442ae4c9d7
          • MD5 SHA1 SHA512 SSDEEP

          AdminIEHIIIJDAA.exe

          • Path C:\Users\AdminIEHIIIJDAA.exe
          • Size 282KB
          • SHA256 90c0395f668f198d1aed010aaabbdab7c7f78b5a8c90072f4a2225683ebaac36
          • MD5 SHA1 SHA512 SSDEEP

          156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE
          • Size 2KB
          • SHA256 2e0e9be598d0f657d9f1f3b4ff8bc5151751b7a639216bf362a40c6453cd6ce2
          • MD5 SHA1 SHA512

          223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
          • Size 2KB
          • SHA256 235b6b76edce553b578f71630f2142d5912707668009d1d6e9616af094c0e966
          • MD5 SHA1 SHA512

          EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D
          • Size 1KB
          • SHA256 cc4813486165df18b36b09814922c3f054897170ae412a7aa13c1178e25cf56c
          • MD5 SHA1 SHA512

          156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE
          • Size 458B
          • SHA256 ad712f0d0791fc65f3fc577132b34d3e373b77ec8933a50c7982a3582e61c9ab
          • MD5 SHA1 SHA512

          223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
          • Size 450B
          • SHA256 3de28950b20675af2ffc2cb0f2b974d35784096043c97da0020371545c4c0df4
          • MD5 SHA1 SHA512

          EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D
          • Size 458B
          • SHA256 a9aa646e69e440cf16655db599e14d6aaecbde10d70969cd37a92400f8e2720a
          • MD5 SHA1 SHA512

          BKJEHCAKFB.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\BKJEHCAKFB.exe.log
          • Size 425B
          • SHA256 6904d540649e76c55f99530b81be17e099184bb4cad415aa9b9b39cc3677f556
          • MD5 SHA1 SHA512

          VHV670QO.cookie

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\VHV670QO.cookie
          • Size 103B
          • SHA256 8828f2364ee6d1f800190de49821bc340a664131259f9d964f86dd2f0456922d
          • MD5 SHA1 SHA512

          mozglue.dll

          • Path \ProgramData\mozglue.dll
          • Size 593KB
          • SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
          • MD5 SHA1 SHA512 SSDEEP

          nss3.dll

          • Path \ProgramData\nss3.dll
          • Size 2.0MB
          • SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
          • MD5 SHA1 SHA512 SSDEEP

          memory/756-131-0x0000000000400000-0x0000000000657000-memory.dmp

          memory/756-156-0x0000000000400000-0x0000000000657000-memory.dmp

          memory/756-194-0x0000000000400000-0x0000000000657000-memory.dmp

          memory/756-118-0x0000000000400000-0x0000000000657000-memory.dmp

          memory/756-119-0x0000000000400000-0x0000000000657000-memory.dmp

          memory/756-121-0x0000000022270000-0x00000000224CF000-memory.dmp

          memory/756-130-0x0000000000400000-0x0000000000657000-memory.dmp

          memory/756-165-0x0000000000400000-0x0000000000657000-memory.dmp

          memory/756-164-0x0000000000400000-0x0000000000657000-memory.dmp

          memory/756-139-0x0000000000400000-0x0000000000657000-memory.dmp

          memory/756-82-0x0000000000400000-0x0000000000657000-memory.dmp

          memory/756-85-0x0000000000400000-0x0000000000657000-memory.dmp

          memory/756-90-0x0000000000400000-0x0000000000657000-memory.dmp

          memory/756-157-0x0000000000400000-0x0000000000657000-memory.dmp

          memory/1840-104-0x0000000000400000-0x000000000045B000-memory.dmp

          memory/1840-108-0x0000000000400000-0x000000000045B000-memory.dmp

          memory/1840-106-0x0000000000400000-0x000000000045B000-memory.dmp

          memory/2552-102-0x0000000000680000-0x00000000006D8000-memory.dmp

          memory/2996-220-0x0000000000400000-0x0000000000643000-memory.dmp

          memory/2996-42-0x0000000000400000-0x0000000000643000-memory.dmp

          memory/2996-3-0x0000000000400000-0x0000000000643000-memory.dmp

          memory/2996-9-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          memory/2996-8-0x0000000000400000-0x0000000000643000-memory.dmp

          memory/2996-6-0x0000000000400000-0x0000000000643000-memory.dmp

          memory/4596-219-0x0000000000400000-0x0000000000657000-memory.dmp

          memory/4596-191-0x0000000000400000-0x0000000000657000-memory.dmp

          memory/4596-203-0x0000000000400000-0x0000000000657000-memory.dmp

          memory/4596-218-0x0000000000400000-0x0000000000657000-memory.dmp

          memory/4596-204-0x000000001FFB0000-0x000000002020F000-memory.dmp

          memory/4596-202-0x0000000000400000-0x0000000000657000-memory.dmp

          memory/4728-80-0x0000000000B20000-0x0000000000B6A000-memory.dmp

          memory/4728-79-0x000000007223E000-0x000000007223F000-memory.dmp

          memory/4728-89-0x0000000072230000-0x000000007291E000-memory.dmp

          memory/5068-7-0x00000000736D0000-0x0000000073DBE000-memory.dmp

          memory/5068-41-0x00000000736D0000-0x0000000073DBE000-memory.dmp

          memory/5068-1-0x00000000005B0000-0x00000000005E8000-memory.dmp

          memory/5068-0-0x00000000736DE000-0x00000000736DF000-memory.dmp