Analysis

  • max time kernel
    92s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/01/2024, 17:51

General

  • Target
    3_Документи.pdf.exe
  • Size 1.1MB
  • Sample240125-we5smsdadn
  • SHA256 2afe2fed654c4514265a3d1b0f50cef25b9fc34351887a13d770457ba018492d
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • lumma

C2
  • https://crisisestimatehealtwh.site/api

Signatures

  • Kinsing

    Kinsing is a loader written in Golang.

  • Lumma Stealer

    An infostealer written in C++ first seen in August 2022.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3_Документи.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\3_Документи.pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2420
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k cmd < Strings & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4436
      • C:\Windows\SysWOW64\cmd.exe
        cmd
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3780
        • C:\Windows\SysWOW64\tasklist.exe
          tasklist
          4⤵
          • Enumerates processes with tasklist
          • Suspicious use of AdjustPrivilegeToken
          PID:4944
        • C:\Windows\SysWOW64\findstr.exe
          findstr /I "avastui.exe avgui.exe nswscsvc.exe sophoshealth.exe"
          4⤵
            PID:4176
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            4⤵
            • Enumerates processes with tasklist
            • Suspicious use of AdjustPrivilegeToken
            PID:2760
          • C:\Windows\SysWOW64\findstr.exe
            findstr /I "wrsa.exe"
            4⤵
              PID:4904
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c mkdir 8218
              4⤵
                PID:4164
              • C:\Windows\SysWOW64\cmd.exe
                cmd /c copy /b Tour + Wheel + Magical + Sides + Mf + Header 8218\Ri.pif
                4⤵
                  PID:4180
                • C:\Windows\SysWOW64\cmd.exe
                  cmd /c copy /b Coupons + Her + Decorative 8218\d
                  4⤵
                    PID:2940
                  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\8218\Ri.pif
                    8218\Ri.pif 8218\d
                    4⤵
                    • Executes dropped EXE
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of FindShellTrayWindow
                    • Suspicious use of SendNotifyMessage
                    PID:4816
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 1444
                      5⤵
                      • Program crash
                      PID:628
                  • C:\Windows\SysWOW64\PING.EXE
                    ping -n 5 localhost
                    4⤵
                    • Runs ping.exe
                    PID:4812
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4816 -ip 4816
              1⤵
                PID:3284

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    Ri.pif

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\8218\Ri.pif
                    • Size 924KB
                    • SHA256 f58d3a4b2f3f7f10815c24586fae91964eeed830369e7e0701b43895b0cefbd3
                    • MD5 SHA1 SHA512 SSDEEP

                    d

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\8218\d
                    • Size 1.1MB
                    • SHA256 652ca8d800770c0592362d8223d23eb0811491a016670103d73942ee882014c2
                    • MD5 SHA1 SHA512 SSDEEP

                    Coupons

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Coupons
                    • Size 470KB
                    • SHA256 2c09af789c33b6a7f769a2076bffb025027b45e28ae21f588a8d431d5c2b7bca
                    • MD5 SHA1 SHA512 SSDEEP

                    Decorative

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Decorative
                    • Size 287KB
                    • SHA256 75df35ea009602413921f725b2579716ae76247b986735c31f5037bb2dbb3abb
                    • MD5 SHA1 SHA512 SSDEEP

                    Header

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Header
                    • Size 103KB
                    • SHA256 a5cc801b2db4523d6a7dfa40128b858bd3d297a7ea1607845fb535fd0d721f2c
                    • MD5 SHA1 SHA512 SSDEEP

                    Her

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Her
                    • Size 402KB
                    • SHA256 7bac1c0e1a8337f9f8d6bb645bf35a6af5e986ccb163fa017dbec86a3cf01a84
                    • MD5 SHA1 SHA512 SSDEEP

                    Magical

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Magical
                    • Size 190KB
                    • SHA256 95eb67f5407bb608c9d6b2972c87930a1ce4acbcaaf1f6308f3e5439e32dcea4
                    • MD5 SHA1 SHA512 SSDEEP

                    Mf

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Mf
                    • Size 110KB
                    • SHA256 e0fa999a7596408f51b11d427c5b4f290b8d7ce9d9b47c1a7a98361c728334bc
                    • MD5 SHA1 SHA512 SSDEEP

                    Sides

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Sides
                    • Size 138KB
                    • SHA256 c1211df077e49d47d212220fde380911265ead362b42605d20c829900fb151f1
                    • MD5 SHA1 SHA512 SSDEEP

                    Strings

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Strings
                    • Size 13KB
                    • SHA256 7158e8faf43a3376141950870260798133098f81642e68056afd6dc3e1e1d776
                    • MD5 SHA1 SHA512 SSDEEP

                    Tour

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Tour
                    • Size 188KB
                    • SHA256 7fa7da730c634c4a21832d2d35cbe4a6d1484fcfadbae988e2e97a9ad76f73db
                    • MD5 SHA1 SHA512 SSDEEP

                    Wheel

                    • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Wheel
                    • Size 195KB
                    • SHA256 37a743aa0ddda77e81dfb5c1ca3ab0ad2dff05237a87189af2867c82c4916a65
                    • MD5 SHA1 SHA512 SSDEEP

                    memory/4816-36-0x0000000001490000-0x0000000001491000-memory.dmp

                    memory/4816-37-0x00000000057A0000-0x0000000005829000-memory.dmp

                    memory/4816-38-0x00000000057A0000-0x0000000005829000-memory.dmp

                    memory/4816-39-0x00000000057A0000-0x0000000005829000-memory.dmp

                    memory/4816-40-0x00000000057A0000-0x0000000005829000-memory.dmp

                    memory/4816-41-0x00000000057A0000-0x0000000005829000-memory.dmp

                    memory/4816-42-0x00000000057A0000-0x0000000005829000-memory.dmp

                    memory/4816-43-0x00000000057A0000-0x0000000005829000-memory.dmp