Analysis

  • max time kernel
    120s
  • max time network
    117s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-10-2024 15:17

General

  • Target

    8ef1aee012f515e5434932fb73ae7d238c2c547d9306dd42cf4f3c4af87cead2N.exe

  • Size

    7.6MB

  • MD5

    4468b7d8b19786f8d0dec5066bfd1ea0

  • SHA1

    57a072f94c5cc277702c985cccf2e9deff355bb0

  • SHA256

    8ef1aee012f515e5434932fb73ae7d238c2c547d9306dd42cf4f3c4af87cead2

  • SHA512

    98900d5974b19e83455ea6c5abf1847aabd484b7a5ac0fb131c5cd369cf161fe1c053dcd00c7c26a851b3f0f1c88649a96fe9fbac531e3dbbf8967e0e3dc3bc3

  • SSDEEP

    196608:Tc1M+L5LdGVzu+l6qbGEanloOTe8dUFazO:Tw5LdGVzBEHPPe5FOO

Malware Config

Extracted

Family

lucastealer

C2

https://api.telegram.org/bot6068798932:AAG_cHiqinDwNZ3Hd-rdp8tPwbT0czdVwTw

Signatures

  • Luca Stealer

    Info stealer written in Rust first seen in July 2022.

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 8 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 1 IoCs
  • Executes dropped EXE 11 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 5 IoCs
  • Drops file in Windows directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 15 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 3 IoCs
  • Suspicious use of SetWindowsHookEx 20 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8ef1aee012f515e5434932fb73ae7d238c2c547d9306dd42cf4f3c4af87cead2N.exe
    "C:\Users\Admin\AppData\Local\Temp\8ef1aee012f515e5434932fb73ae7d238c2c547d9306dd42cf4f3c4af87cead2N.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:1884
    • C:\Users\Admin\AppData\Local\Temp\JAVWEP.exe
      "C:\Users\Admin\AppData\Local\Temp\JAVWEP.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4708
      • \??\c:\users\admin\appdata\local\temp\javwep.exe 
        c:\users\admin\appdata\local\temp\javwep.exe 
        3⤵
        • Executes dropped EXE
        PID:224
      • C:\Users\Admin\AppData\Local\icsys.icn.exe
        C:\Users\Admin\AppData\Local\icsys.icn.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:388
        • \??\c:\windows\system\explorer.exe
          c:\windows\system\explorer.exe
          4⤵
          • Modifies WinLogon for persistence
          • Modifies visiblity of hidden/system files in Explorer
          • Boot or Logon Autostart Execution: Active Setup
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3076
          • \??\c:\windows\system\spoolsv.exe
            c:\windows\system\spoolsv.exe SE
            5⤵
            • Executes dropped EXE
            • Drops file in Windows directory
            • System Location Discovery: System Language Discovery
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:3620
            • \??\c:\windows\system\svchost.exe
              c:\windows\system\svchost.exe
              6⤵
              • Modifies WinLogon for persistence
              • Modifies visiblity of hidden/system files in Explorer
              • Boot or Logon Autostart Execution: Active Setup
              • Executes dropped EXE
              • Adds Run key to start application
              • Drops file in Windows directory
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious behavior: GetForegroundWindowSpam
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:2560
              • \??\c:\windows\system\spoolsv.exe
                c:\windows\system\spoolsv.exe PR
                7⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                • Suspicious use of SetWindowsHookEx
                PID:2300
              • C:\Windows\SysWOW64\at.exe
                at 15:19 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
                7⤵
                • System Location Discovery: System Language Discovery
                PID:5036
              • C:\Windows\SysWOW64\at.exe
                at 15:20 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
                7⤵
                • System Location Discovery: System Language Discovery
                PID:4048
    • C:\Users\Admin\AppData\Local\Temp\MIYJHY.exe
      "C:\Users\Admin\AppData\Local\Temp\MIYJHY.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:236
      • \??\c:\users\admin\appdata\local\temp\miyjhy.exe 
        c:\users\admin\appdata\local\temp\miyjhy.exe 
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:736
      • C:\Users\Admin\AppData\Local\icsys.icn.exe
        C:\Users\Admin\AppData\Local\icsys.icn.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:900
        • \??\c:\windows\system\explorer.exe
          c:\windows\system\explorer.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:1528
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c schtasks /create /tn WPZAGW.exe /tr C:\Users\Admin\AppData\Roaming\Windata\Microsoft Office Click-to-Run.exe /sc minute /mo 1
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4996
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /tn WPZAGW.exe /tr C:\Users\Admin\AppData\Roaming\Windata\Microsoft Office Click-to-Run.exe /sc minute /mo 1
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4808

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\JAVWEP.exe

    Filesize

    5.9MB

    MD5

    021079dc0918b9c7359e93e770678000

    SHA1

    70c03da6f7b339340b1943f5d0b7b1fd87579adf

    SHA256

    ee63e26e84d8092fda9e527f7db34777b6261d8dfc96ed42167383f88cf1c487

    SHA512

    9bc14753e39f2c93737886439d64a458f08265d1d8176c233a8e3f864e1f4f2751b161aa22408618d0dd343fb88b7037c8c2eee898c6d9b3bf466aaea709c5b0

  • C:\Users\Admin\AppData\Local\Temp\MIYJHY.exe

    Filesize

    3.0MB

    MD5

    4f2b20a8226b6e6c7cdd2a3b49b466b6

    SHA1

    ae13c508f617d6f61743c9844c7dbf21bf363583

    SHA256

    f912c3ab51ae85bee31e275014ced975a8ccb7fde6c2bfe26f2ac48d037a4a62

    SHA512

    f70c4e74104fad77a493a8453c3b8143445e67391dda0e8de82a59d16f3ec5dbeefc6d1c1e497b24e3338d3fd1deed8233992904aeda6fbdca94a0ac535b30ea

  • C:\Users\Admin\AppData\Local\Temp\dup2patcher.dll

    Filesize

    2.7MB

    MD5

    6f3f670a000253bc889c7688a1013e55

    SHA1

    51032eda76e8979df2772b460f6fa316084a4767

    SHA256

    3a2ee216222e310b9bdecb4ed1ba369fe56de3e9a11089629c5e111f2d1c6fce

    SHA512

    a3f8a11b1bc3b6113d3ce5610f8bdfaabf603f38ad50756c0aaa5c52e57e4245bb49dd8d4f01aca39ff81f2724c5c78419c0607b8a9999ecca973d7c0415c15f

  • C:\Users\Admin\AppData\Local\Temp\javwep.exe 

    Filesize

    5.7MB

    MD5

    2c2055233260e5bb20ce675afd39ed0d

    SHA1

    26c056ba8e99a3fb523612b422a85be3ecbbd5b3

    SHA256

    306827f0ef0a4cbecd5458776244bf7ee99f2e49569daf0034176b39f5d1c17d

    SHA512

    3e2a18cd0c7fe5e3529d37ac37b352f8c19d3fef947f117701bb712c19cb40ff3ed56c843c789334a6c93382deef1f5cf4a48fbadb6b1e46fe804b9430fa1546

  • C:\Users\Admin\AppData\Local\Temp\miyjhy.exe 

    Filesize

    2.8MB

    MD5

    c322f83a5e9f2231f48436fdf14dbfe7

    SHA1

    2ecfcd7bb8f3d04dbc6c2f14a1456727d5cb68e0

    SHA256

    c27aad70501f9346e36d3557e01ec2fe84c192ffb75e588c7b787e6d3310909d

    SHA512

    055815ec2d97ab687fdc65ab636c0de003472d030caf83e0248978ab059d00b0d70b660860a541fee8259c66bdde1ba700909982472d1d1dd3076fa9d5be3663

  • C:\Users\Admin\AppData\Local\icsys.icn.exe

    Filesize

    206KB

    MD5

    c5f78d788265a8c2b80017a0dc351266

    SHA1

    32836c3ccaf84431beaba1b10107743c052cddc0

    SHA256

    0a48908b44578715b511d6c067b2b0c1351783c049c68183f6067afff1ff72d0

    SHA512

    0315d122adf425001109bae742a1aff418f301f46c3655bf3e3d0c12ecc03ac3d70b52a60a744f81b7b041d28bf235f3d93abc26c71bfdd388be6a145a1bbb16

  • C:\Users\Admin\AppData\Roaming\mrsys.exe

    Filesize

    206KB

    MD5

    4f82c47367ef2fc617becca25905120c

    SHA1

    5df3701353dcda389ef643a17f6b857eb813590d

    SHA256

    9f2864746adf182558af06a55b4dacec18165b298a95feb5a9530cde764358cd

    SHA512

    f5ba628e363cbba76313cd0032016e8883562bd0df9fc41d48f2f698f581acaa62f26311902a6ccc2b3d5851a9dc38e7a2807e90da9d2359b0fcdc85b397b643

  • C:\Windows\System\spoolsv.exe

    Filesize

    206KB

    MD5

    aa027d9ddc8b77f8e37d2a49e7a257ed

    SHA1

    b7418886e412f0a101636d13eb2edf46a9c67c60

    SHA256

    b614e40bd43d9f2d9ff9b6e5dd9cb51d2554c40092e9f56461fab63cbab944d0

    SHA512

    e7dfc74acab5dbbde7dab3e8c68ba322edb2ff7c060321438918e4d23355f27000c572499691b372e9748e7d358864b186e19bb71fbb95538f9eaa57e51eb72e

  • \??\c:\windows\system\explorer.exe

    Filesize

    206KB

    MD5

    b441b40e1a2a83b780f7cacd99349b71

    SHA1

    f721c7c78fb17f69de312a68657d0bc0ca6fcec8

    SHA256

    ccf3734c0e05f3f13227d5bd4466c27451fbebc6b51504b5306ea44b15c36e80

    SHA512

    ad4d7d1f98840b9e9f8f30e17390a2de355b6a6ee1c98218c402104f7f89dd83ae97f60840bc77fe5956380fc7bad41f7d724a57a64c031f7781b176540ffbfc

  • \??\c:\windows\system\svchost.exe

    Filesize

    206KB

    MD5

    fa169591f4a1d318dc75362e6bad92a6

    SHA1

    bd038bbf1920dad6dc1230bd7aedda28f34c1b50

    SHA256

    1609b2de8b4bd68402921cea5f45bc4fb53bb8869ccd93fd76f337420e67c0e7

    SHA512

    970f2d4be667c7bc91b4462352c2b15b2f35ef408998a54f1567457301b4456de095e38a586269cfb7df8ec6376d37a43e7d30a63b0b126e7a996e66b537dd3a

  • memory/236-113-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/236-44-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/388-96-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/388-42-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/736-118-0x0000000072B80000-0x0000000072E51000-memory.dmp

    Filesize

    2.8MB

  • memory/736-102-0x0000000072B80000-0x0000000072E51000-memory.dmp

    Filesize

    2.8MB

  • memory/900-114-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1528-112-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2300-83-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2300-82-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2560-117-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2560-77-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3076-116-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3620-70-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3620-85-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/4708-15-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/4708-95-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB