Analysis

  • max time kernel
    141s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    24/06/2024, 01:02

General

  • Target
    ImPackr.exe
  • Size 102KB
  • Sample240624-bd5q2avgrj
  • SHA256 689951b03517f77b6c04bb57f604f50736dc1a86b87253b0dee73722d4520a11
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

rc4.plain

Extracted

Family
  • vidar

Version
  • 10.1

Botnet
  • 89083e6d7cd1c8c460b86fe6e70bf17b

C2
  • https://guillerme.xyz/

  • https://t.me/memve4erin

  • https://steamcommunity.com/profiles/76561199699680841

Attributes
  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:127.0) Gecko/20100101 Firefox/127.0

Signatures

  • Detect Vidar Stealer 5 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Detect binaries embedding considerable number of MFA browser extension IDs. 4 IoCs
  • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 4 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 5 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 4 IoCs
  • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 5 IoCs
  • Detects executables containing SQL queries to confidential data stores. Observed in infostealers 1 IoCs
  • Detects executables containing potential Windows Defender anti-emulation checks 5 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 13 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 1 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 19 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ImPackr.exe
    "C:\Users\Admin\AppData\Local\Temp\ImPackr.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1936
    • C:\Users\Admin\AppData\Roaming\EdHelp\ImPackr.exe
      C:\Users\Admin\AppData\Roaming\EdHelp\ImPackr.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2164
      • C:\Windows\SysWOW64\netsh.exe
        C:\Windows\SysWOW64\netsh.exe
        3⤵
        • Event Triggered Execution: Netsh Helper DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:2856
        • C:\Windows\SysWOW64\SearchIndexer.exe
          C:\Windows\SysWOW64\SearchIndexer.exe
          4⤵
          • Loads dropped DLL
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2476
          • C:\ProgramData\BGIIDAEBGC.exe
            "C:\ProgramData\BGIIDAEBGC.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:2376
            • C:\Windows\SysWOW64\more.com
              C:\Windows\SysWOW64\more.com
              6⤵
              • Drops file in Windows directory
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of WriteProcessMemory
              PID:2384
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:2516
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2516 -s 88
                  8⤵
                  • Program crash
                  PID:2712
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\JJJKEHCAKFBF" & exit
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2584
            • C:\Windows\SysWOW64\timeout.exe
              timeout /t 10
              6⤵
              • Delays execution with timeout.exe
              PID:1892

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        VCRUNT~1.DLL

        • Path C:\ProgramData\JJJKEHCAKFBF\VCRUNT~1.DLL
        • Size 78KB
        • SHA256 8934aaeb65b6e6d253dfe72dea5d65856bd871e989d5d3a2a35edfe867bb4825
        • MD5 SHA1 SHA512 SSDEEP

        msvcp140.dll

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

        softokn3.dll

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

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
        • Size 70KB
        • SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
        • MD5 SHA1 SHA512 SSDEEP

        F0ACCF77CDCBFF39F6191887F6D2D357

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357
        • Size 1KB
        • SHA256 df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 26dcc369f4d1803f1bb2b20b41657474ba27c86c0b863d05b34da96471fec502
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 204abcff205f877b8b11367c4d35d664bbf6a506d129c8559e77c39d1c41a1c9
        • MD5 SHA1 SHA512

        F0ACCF77CDCBFF39F6191887F6D2D357

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357
        • Size 242B
        • SHA256 a0a789325b8ba50b588a4849dc248a9766236815ea90f6b807002207fd52f09b
        • MD5 SHA1 SHA512

        9012dc5c

        • Path C:\Users\Admin\AppData\Local\Temp\9012dc5c
        • Size 929KB
        • SHA256 c46fa4fcbb8470f7b0bf7aa5e59a548f7e536be1a2c3bf9acbb1e7e4131f7adc
        • MD5 SHA1 SHA512 SSDEEP

        TarCFF1.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\TarCFF1.tmp
        • Size 181KB
        • SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
        • MD5 SHA1 SHA512 SSDEEP

        d253a447

        • Path C:\Users\Admin\AppData\Local\Temp\d253a447
        • Size 1.2MB
        • SHA256 094033928539ee1aba01b21d3c39c4054bd606755d482f27e84c6adb1f3b420b
        • MD5 SHA1 SHA512 SSDEEP

        d61d9459

        • Path C:\Users\Admin\AppData\Local\Temp\d61d9459
        • Size 1.1MB
        • SHA256 53bb4d01c5fcb6d9981e16118680284ca59e7691d84f2ce5fc60484d23f89e89
        • MD5 SHA1 SHA512 SSDEEP

        IMHttpComm.dll

        • Path C:\Users\Admin\AppData\Roaming\EdHelp\IMHttpComm.dll
        • Size 32KB
        • SHA256 96d6264b26decf6595ca6f0584a1b60589ec5dacdf03ddf5fbb6104a6afc9e7a
        • MD5 SHA1 SHA512 SSDEEP

        ImLookExU.dll

        • Path C:\Users\Admin\AppData\Roaming\EdHelp\ImLookExU.dll
        • Size 262KB
        • SHA256 0e469f31a8399483862231a0fe5b78bf90a7df4ac5c0470ae79adc33e4a42d10
        • MD5 SHA1 SHA512 SSDEEP

        ImLookU.dll

        • Path C:\Users\Admin\AppData\Roaming\EdHelp\ImLookU.dll
        • Size 606KB
        • SHA256 a6766c524497144d585efa4fe384b516b563203427003508f7c8f6bffa7c928d
        • MD5 SHA1 SHA512 SSDEEP

        ImNtUtilU.dll

        • Path C:\Users\Admin\AppData\Roaming\EdHelp\ImNtUtilU.dll
        • Size 94KB
        • SHA256 a8e1b0e676dce9556037d29fd96521ec814858404ba4cfdd0db0edbe22c87bc7
        • MD5 SHA1 SHA512 SSDEEP

        ImUtilsU.dll

        • Path C:\Users\Admin\AppData\Roaming\EdHelp\ImUtilsU.dll
        • Size 1.4MB
        • SHA256 914b1e53451b8be2c362d62514f28bdef46a133535d959b13f3f4bf3bc63df3a
        • MD5 SHA1 SHA512 SSDEEP

        ImWrappU.dll

        • Path C:\Users\Admin\AppData\Roaming\EdHelp\ImWrappU.dll
        • Size 158KB
        • SHA256 7187903a9e4078f4d31f4b709a59d24eb6b417ea289f4f28eabce1ea2e713dce
        • MD5 SHA1 SHA512 SSDEEP

        MFC80U.DLL

        • Path C:\Users\Admin\AppData\Roaming\EdHelp\MFC80U.DLL
        • Size 1.0MB
        • SHA256 18be5d3c656236b7e3cd6d619d62496fe3e7f66bf2859e460f8ac3d1a6bdaa9a
        • MD5 SHA1 SHA512 SSDEEP

        SftTree_IX86_U_60.DLL

        • Path C:\Users\Admin\AppData\Roaming\EdHelp\SftTree_IX86_U_60.DLL
        • Size 570KB
        • SHA256 24f2399fc83198ab8d63ee6a1ad6ffbd1eda4d38048d3e809fecd2a3e0709671
        • MD5 SHA1 SHA512 SSDEEP

        chamiso.sql

        • Path C:\Users\Admin\AppData\Roaming\EdHelp\chamiso.sql
        • Size 36KB
        • SHA256 205643214e81608a874ea9ce959437cbeae2ca1f92221a113a2aaa2e3802e277
        • MD5 SHA1 SHA512 SSDEEP

        torpor.zip

        • Path C:\Users\Admin\AppData\Roaming\EdHelp\torpor.zip
        • Size 683KB
        • SHA256 50872668c0884f57196445492613bb9c3989908072ff765566b43f78464f50fe
        • MD5 SHA1 SHA512 SSDEEP

        wlessfp1.dll

        • Path C:\Users\Admin\AppData\Roaming\EdHelp\wlessfp1.dll
        • Size 70KB
        • SHA256 fbd4b6011d3d1c2af22827ca548ba19669eef31173d496e75f064ef7a884431c
        • MD5 SHA1 SHA512 SSDEEP

        BGIIDAEBGC.exe

        • Path \ProgramData\BGIIDAEBGC.exe
        • Size 4.8MB
        • SHA256 b3cd9273df274c0940a19998d70dc5cc36ab33d772b2c1ebb1724ff0afc7a4cc
        • MD5 SHA1 SHA512 SSDEEP

        mozglue.dll

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

        nss3.dll

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

        ImPackr.exe

        • Path \Users\Admin\AppData\Roaming\EdHelp\ImPackr.exe
        • Size 102KB
        • SHA256 689951b03517f77b6c04bb57f604f50736dc1a86b87253b0dee73722d4520a11
        • MD5 SHA1 SHA512 SSDEEP

        memory/1936-2-0x0000000000490000-0x000000000051E000-memory.dmp

        memory/1936-4-0x0000000077370000-0x000000007750D000-memory.dmp

        memory/1936-0-0x00000000001E0000-0x00000000001F0000-memory.dmp

        memory/1936-5-0x0000000077790000-0x0000000077939000-memory.dmp

        memory/2164-52-0x0000000077382000-0x0000000077384000-memory.dmp

        memory/2164-46-0x0000000000310000-0x000000000039E000-memory.dmp

        memory/2164-50-0x0000000077370000-0x000000007750D000-memory.dmp

        memory/2164-51-0x0000000077790000-0x0000000077939000-memory.dmp

        memory/2164-54-0x0000000077370000-0x000000007750D000-memory.dmp

        memory/2164-53-0x0000000077370000-0x000000007750D000-memory.dmp

        memory/2164-38-0x0000000000250000-0x0000000000260000-memory.dmp

        memory/2376-254-0x000007FEF6EB0000-0x000007FEF7008000-memory.dmp

        memory/2376-265-0x000007FEF6EB0000-0x000007FEF7008000-memory.dmp

        memory/2376-247-0x0000000000400000-0x00000000008DC000-memory.dmp

        memory/2384-280-0x0000000077790000-0x0000000077939000-memory.dmp

        memory/2384-291-0x0000000073A60000-0x0000000073BD4000-memory.dmp

        memory/2384-281-0x0000000073A60000-0x0000000073BD4000-memory.dmp

        memory/2476-269-0x0000000000400000-0x000000000064D000-memory.dmp

        memory/2476-61-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        memory/2476-264-0x0000000000400000-0x000000000064D000-memory.dmp

        memory/2476-62-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        memory/2476-77-0x0000000000400000-0x000000000064D000-memory.dmp

        memory/2476-279-0x0000000000400000-0x000000000064D000-memory.dmp

        memory/2476-101-0x00000000172E0000-0x000000001753F000-memory.dmp

        memory/2476-99-0x0000000000400000-0x000000000064D000-memory.dmp

        memory/2476-64-0x0000000077790000-0x0000000077939000-memory.dmp

        memory/2516-294-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        memory/2516-297-0x00000000000C0000-0x0000000000122000-memory.dmp

        memory/2516-295-0x00000000000C0000-0x0000000000122000-memory.dmp

        memory/2516-293-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        memory/2856-63-0x0000000077370000-0x000000007750D000-memory.dmp

        memory/2856-57-0x0000000077790000-0x0000000077939000-memory.dmp

        memory/2856-58-0x0000000003740000-0x00000000038DD000-memory.dmp

        memory/2856-59-0x0000000077370000-0x000000007750D000-memory.dmp