Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-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 4 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 4 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 4 IoCs
  • Detects executables containing SQL queries to confidential data stores. Observed in infostealers 1 IoCs
  • Detects executables containing potential Windows Defender anti-emulation checks 4 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 14 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.

  • 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 13 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ImPackr.exe
    "C:\Users\Admin\AppData\Local\Temp\ImPackr.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4300
    • 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:2328
      • 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:1356
        • 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:2104
          • C:\ProgramData\EGIIJDHCGC.exe
            "C:\ProgramData\EGIIJDHCGC.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:4680
            • 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:964
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                7⤵
                  PID:208
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\System32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\KKJDGDHIDBGI" & exit
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:3148
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 10
                6⤵
                • Delays execution with timeout.exe
                PID:4080

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          EGIIJDHCGC.exe

          • Path C:\ProgramData\EGIIJDHCGC.exe
          • Size 4.8MB
          • SHA256 b3cd9273df274c0940a19998d70dc5cc36ab33d772b2c1ebb1724ff0afc7a4cc
          • MD5 SHA1 SHA512 SSDEEP

          VCRUNT~1.DLL

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

          mozglue.dll

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

          msvcp140.dll

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

          nss3.dll

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

          softokn3.dll

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

          16e32555

          • Path C:\Users\Admin\AppData\Local\Temp\16e32555
          • Size 1.2MB
          • SHA256 094033928539ee1aba01b21d3c39c4054bd606755d482f27e84c6adb1f3b420b
          • MD5 SHA1 SHA512 SSDEEP

          1c6d4dba

          • Path C:\Users\Admin\AppData\Local\Temp\1c6d4dba
          • Size 1.1MB
          • SHA256 8005bd4a7f7c939d58c5a8a4210cc2c66571af71a1d88d45674d8b4c471ba573
          • MD5 SHA1 SHA512 SSDEEP

          6a161d2

          • Path C:\Users\Admin\AppData\Local\Temp\6a161d2
          • Size 929KB
          • SHA256 526e53d18dd13ece9c2471e2aa1312057e57107fba9f4416c75007d03c848571
          • 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

          ImPackr.exe

          • Path C:\Users\Admin\AppData\Roaming\EdHelp\ImPackr.exe
          • Size 102KB
          • SHA256 689951b03517f77b6c04bb57f604f50736dc1a86b87253b0dee73722d4520a11
          • 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

          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

          mfc80u.dll

          • Path C:\Users\Admin\AppData\Roaming\EdHelp\mfc80u.dll
          • Size 1.0MB
          • SHA256 18be5d3c656236b7e3cd6d619d62496fe3e7f66bf2859e460f8ac3d1a6bdaa9a
          • 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

          memory/208-193-0x00007FF839E50000-0x00007FF83A045000-memory.dmp

          memory/208-191-0x0000000000B40000-0x0000000000BA2000-memory.dmp

          memory/208-199-0x0000000000B40000-0x0000000000BA2000-memory.dmp

          memory/964-184-0x0000000072780000-0x00000000728FB000-memory.dmp

          memory/964-172-0x0000000072780000-0x00000000728FB000-memory.dmp

          memory/964-171-0x00007FF839E50000-0x00007FF83A045000-memory.dmp

          memory/1356-57-0x00000000758BE000-0x00000000758C0000-memory.dmp

          memory/1356-61-0x00000000758B1000-0x00000000758BF000-memory.dmp

          memory/1356-54-0x00000000758B1000-0x00000000758BF000-memory.dmp

          memory/1356-56-0x00007FF839E50000-0x00007FF83A045000-memory.dmp

          memory/1356-58-0x00000000758B1000-0x00000000758BF000-memory.dmp

          memory/2104-170-0x0000000000650000-0x000000000089D000-memory.dmp

          memory/2104-70-0x0000000019550000-0x00000000197AF000-memory.dmp

          memory/2104-62-0x00007FF839E50000-0x00007FF83A045000-memory.dmp

          memory/2104-77-0x0000000000650000-0x000000000089D000-memory.dmp

          memory/2104-187-0x0000000000650000-0x000000000089D000-memory.dmp

          memory/2104-164-0x0000000000650000-0x000000000089D000-memory.dmp

          memory/2328-51-0x00000000758B0000-0x0000000075CEC000-memory.dmp

          memory/2328-52-0x00000000758B0000-0x0000000075CEC000-memory.dmp

          memory/2328-50-0x00000000758C2000-0x00000000758C4000-memory.dmp

          memory/2328-49-0x00007FF839E50000-0x00007FF83A045000-memory.dmp

          memory/2328-48-0x00000000758B0000-0x0000000075CEC000-memory.dmp

          memory/4300-0-0x0000000000A10000-0x0000000000A20000-memory.dmp

          memory/4300-3-0x00007FF839E50000-0x00007FF83A045000-memory.dmp

          memory/4300-2-0x00000000758B0000-0x0000000075CEC000-memory.dmp

          memory/4680-166-0x00007FF81AB50000-0x00007FF81ACC2000-memory.dmp

          memory/4680-157-0x00007FF81AB50000-0x00007FF81ACC2000-memory.dmp

          memory/4680-151-0x0000000000400000-0x00000000008DC000-memory.dmp