Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-02-2024 18:16

General

  • Target

    LibManager.exe

  • Size

    168.6MB

  • MD5

    2f587263b9ed87d40c312797c5909642

  • SHA1

    2546e7de3159ec813ebb7bf277178c51ecb00803

  • SHA256

    8d188a5d229b21f549fefddbf83d3da21cc535b843cb977fdf71a8f609cec155

  • SHA512

    e6bee59e438172061882103364f408a8da66c8a1d999085bfc79060cc2672a9171876761443a24039e092685a2088995a8494d4a58915efb996575235d211a33

  • SSDEEP

    1572864:CXic4qb6IXgDaJfpEQHgelkLK4z34xGWw0TwW1T/qWhehZvmCtS3JPfyzG49FndX:cVKvWZ8tyx4u

Malware Config

Signatures

  • Epsilon Stealer

    Information stealer.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 2 IoCs
  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\LibManager.exe
    "C:\Users\Admin\AppData\Local\Temp\LibManager.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:3124
    • C:\Users\Admin\AppData\Local\Temp\LibManager.exe
      "C:\Users\Admin\AppData\Local\Temp\LibManager.exe" --type=gpu-process --user-data-dir="C:\Users\Admin\AppData\Roaming\LibManager" --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --mojo-platform-channel-handle=1828 --field-trial-handle=1832,i,9253317498912245518,10473216666801060472,262144 --enable-features=kWebSQLAccess --disable-features=SpareRendererForSitePerProcess,WinDelaySpellcheckServiceInit,WinRetrieveSuggestionsOnlyOnDemand --variations-seed-version /prefetch:2
      2⤵
        PID:2500
      • C:\Users\Admin\AppData\Local\Temp\LibManager.exe
        "C:\Users\Admin\AppData\Local\Temp\LibManager.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --user-data-dir="C:\Users\Admin\AppData\Roaming\LibManager" --mojo-platform-channel-handle=1912 --field-trial-handle=1832,i,9253317498912245518,10473216666801060472,262144 --enable-features=kWebSQLAccess --disable-features=SpareRendererForSitePerProcess,WinDelaySpellcheckServiceInit,WinRetrieveSuggestionsOnlyOnDemand --variations-seed-version /prefetch:8
        2⤵
          PID:3892
        • C:\Users\Admin\AppData\Local\Temp\LibManager.exe
          "C:\Users\Admin\AppData\Local\Temp\LibManager.exe" --type=renderer --user-data-dir="C:\Users\Admin\AppData\Roaming\LibManager" --app-path="C:\Users\Admin\AppData\Local\Temp\resources\app.asar" --enable-sandbox --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=4 --mojo-platform-channel-handle=2552 --field-trial-handle=1832,i,9253317498912245518,10473216666801060472,262144 --enable-features=kWebSQLAccess --disable-features=SpareRendererForSitePerProcess,WinDelaySpellcheckServiceInit,WinRetrieveSuggestionsOnlyOnDemand --variations-seed-version /prefetch:1
          2⤵
          • Checks computer location settings
          PID:4860
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /d /s /c "C:\Windows\system32\reg.exe QUERY "HKCU\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions""
          2⤵
            PID:2992
            • C:\Windows\system32\reg.exe
              C:\Windows\system32\reg.exe QUERY "HKCU\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions"
              3⤵
                PID:3460
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /d /s /c "C:\Windows\system32\reg.exe QUERY "HKCU\Software\Valve\Steam" /v SteamPath"
              2⤵
                PID:3276
                • C:\Windows\system32\reg.exe
                  C:\Windows\system32\reg.exe QUERY "HKCU\Software\Valve\Steam" /v SteamPath
                  3⤵
                    PID:1912
                • C:\Windows\system32\cmd.exe
                  C:\Windows\system32\cmd.exe /d /s /c "tasklist"
                  2⤵
                    PID:3228
                    • C:\Windows\system32\tasklist.exe
                      tasklist
                      3⤵
                      • Enumerates processes with tasklist
                      • Suspicious use of AdjustPrivilegeToken
                      PID:2732
                  • C:\Windows\system32\cmd.exe
                    C:\Windows\system32\cmd.exe /d /s /c "wmic /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntiVirusProduct Get displayName /Format:List"
                    2⤵
                      PID:2676
                      • C:\Windows\System32\Wbem\WMIC.exe
                        wmic /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntiVirusProduct Get displayName /Format:List
                        3⤵
                        • Suspicious use of AdjustPrivilegeToken
                        PID:2200
                    • C:\Windows\system32\cmd.exe
                      C:\Windows\system32\cmd.exe /d /s /c "wmic path win32_VideoController get name"
                      2⤵
                        PID:3008
                        • C:\Windows\System32\Wbem\WMIC.exe
                          wmic path win32_VideoController get name
                          3⤵
                          • Detects videocard installed
                          • Suspicious use of AdjustPrivilegeToken
                          PID:1876
                      • C:\Windows\system32\cmd.exe
                        C:\Windows\system32\cmd.exe /d /s /c "cmd /c chcp 65001>nul && netsh wlan show profiles"
                        2⤵
                          PID:1028
                          • C:\Windows\system32\cmd.exe
                            cmd /c chcp 65001
                            3⤵
                              PID:4228
                              • C:\Windows\system32\chcp.com
                                chcp 65001
                                4⤵
                                  PID:4408
                              • C:\Windows\system32\netsh.exe
                                netsh wlan show profiles
                                3⤵
                                  PID:4744
                              • C:\Windows\system32\cmd.exe
                                C:\Windows\system32\cmd.exe /d /s /c "C:\Windows\system32\reg.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v WindowsBootManager /t REG_SZ /d C:\Users\Admin\AppData\Local\Microsoft\Windows\0\WindowsBootManager.exe /f"
                                2⤵
                                  PID:3760
                                  • C:\Windows\system32\reg.exe
                                    C:\Windows\system32\reg.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v WindowsBootManager /t REG_SZ /d C:\Users\Admin\AppData\Local\Microsoft\Windows\0\WindowsBootManager.exe /f
                                    3⤵
                                    • Adds Run key to start application
                                    PID:1536
                                • C:\Windows\system32\cmd.exe
                                  C:\Windows\system32\cmd.exe /d /s /c "tasklist"
                                  2⤵
                                    PID:224
                                    • C:\Windows\system32\tasklist.exe
                                      tasklist
                                      3⤵
                                      • Enumerates processes with tasklist
                                      PID:3428
                                  • C:\Users\Admin\AppData\Local\Temp\LibManager.exe
                                    "C:\Users\Admin\AppData\Local\Temp\LibManager.exe" --type=gpu-process --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --user-data-dir="C:\Users\Admin\AppData\Roaming\LibManager" --gpu-preferences=WAAAAAAAAADoAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAACEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --mojo-platform-channel-handle=3160 --field-trial-handle=1832,i,9253317498912245518,10473216666801060472,262144 --enable-features=kWebSQLAccess --disable-features=SpareRendererForSitePerProcess,WinDelaySpellcheckServiceInit,WinRetrieveSuggestionsOnlyOnDemand --variations-seed-version /prefetch:8
                                    2⤵
                                    • Drops file in System32 directory
                                    • Suspicious behavior: EnumeratesProcesses
                                    PID:3028

                                Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

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                                Downloads

                                • C:\Users\Admin\AppData\Local\Temp\0eee9155-1be3-4160-97cb-1afc4ac5526e.tmp.node

                                  Filesize

                                  1.6MB

                                  MD5

                                  bc3285978427f0121ff25a2bc45a9c04

                                  SHA1

                                  8e33c8673c2d55697dbaeb5eec0419bece8967a1

                                  SHA256

                                  0135692978c34ca3ff4ecc40f71516df66ad54bb3acf38dc144f87af15fc8744

                                  SHA512

                                  ac9e46a032281048b851965dd445ad3cebf04dd028234bfa9d34b6eca795cf065d9ad50d13453cf3dc057e6561868f47c4c7a5a9913a7461a21c456d2de3d943

                                • C:\Users\Admin\AppData\Local\Temp\5c694532-720d-4ed8-b94e-b1da2f31ab4c.tmp.node

                                  Filesize

                                  122KB

                                  MD5

                                  d846538a1ac5be540a3870319e8823c4

                                  SHA1

                                  89738151ef13e90e2d84e3dca1c7db58e7db3a18

                                  SHA256

                                  665b2cedbaecbd08888dc6a5bf99f1b994fcf6083041587a433bc3e373f5a8ca

                                  SHA512

                                  f80caaa1384132b6a72b467429ee60de77a6a80c6e52ead182dd620289651092ab90ffa15e61ae457038d206c389c376462544191ea2e336c3df63449ce104a1

                                • C:\Users\Admin\AppData\Local\Temp\epsilon-Admin\Antivirus.txt

                                  Filesize

                                  231B

                                  MD5

                                  dec2be4f1ec3592cea668aa279e7cc9b

                                  SHA1

                                  327cf8ab0c895e10674e00ea7f437784bb11d718

                                  SHA256

                                  753b99d2b4e8c58bfd10995d0c2c19255fe9c8f53703bb27d1b6f76f1f4e83cc

                                  SHA512

                                  81728e3d31b72905b3a09c79d1e307c4e8e79d436fcfe7560a8046b46ca4ae994fdfaeb1bc2328e35f418b8128f2e7239289e84350e142146df9cde86b20bb66

                                • C:\Users\Admin\AppData\Local\Temp\epsilon-Admin\AutoFill Data\All Autofill Data.txt

                                  Filesize

                                  249B

                                  MD5

                                  cf7e4a12f932a3fddddacc8b10e1f1b0

                                  SHA1

                                  db6f9bc2be5e0905086b7b7b07109ef8d67b24ee

                                  SHA256

                                  1b6d3f6ad849e115bf20175985bed9bcfc6ec206e288b97ac14c3a23b5d28a4b

                                  SHA512

                                  fab79f26c1841310cc61e2f8336ca05281a9252a34a3c240e500c8775840374edb0a42094c64aa38a29ca79e1cafa114d6f1bbe3009060d32f8c1df9f088c12c

                                • C:\Users\Admin\AppData\Roaming\LibManager\Network\Network Persistent State

                                  Filesize

                                  300B

                                  MD5

                                  dec8434d17613966933ed9e23898e6a2

                                  SHA1

                                  fac996476a43de13cbe227ea1f3ea9befccafd8d

                                  SHA256

                                  82fbf9bb692f19df6a1ba7eaf4d1b073640af7b57a670e8d004baea1a14440f5

                                  SHA512

                                  f184b221fb5ef66d20a53789360c62fee7e431359eb7dff8b353571cbb0fa15bc9f8ed194e23376da9644b74fdf1e46fb66cdfdfc18264c51d22140275a58bef

                                • C:\Users\Admin\AppData\Roaming\LibManager\Network\Network Persistent State~RFe587e34.TMP

                                  Filesize

                                  59B

                                  MD5

                                  2800881c775077e1c4b6e06bf4676de4

                                  SHA1

                                  2873631068c8b3b9495638c865915be822442c8b

                                  SHA256

                                  226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974

                                  SHA512

                                  e342407ab65cc68f1b3fd706cd0a37680a0864ffd30a6539730180ede2cdcd732cc97ae0b9ef7db12da5c0f83e429df0840dbf7596aca859a0301665e517377b

                                • C:\Users\Admin\AppData\Roaming\Microsoft\Spelling\en-US\default.dic

                                  Filesize

                                  2B

                                  MD5

                                  f3b25701fe362ec84616a93a45ce9998

                                  SHA1

                                  d62636d8caec13f04e28442a0a6fa1afeb024bbb

                                  SHA256

                                  b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

                                  SHA512

                                  98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

                                • memory/3028-163-0x0000029EECB30000-0x0000029EECB31000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/3028-164-0x0000029EECB30000-0x0000029EECB31000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/3028-165-0x0000029EECB30000-0x0000029EECB31000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/3028-169-0x0000029EECB30000-0x0000029EECB31000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/3028-170-0x0000029EECB30000-0x0000029EECB31000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/3028-171-0x0000029EECB30000-0x0000029EECB31000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/3028-172-0x0000029EECB30000-0x0000029EECB31000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/3028-173-0x0000029EECB30000-0x0000029EECB31000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/3028-174-0x0000029EECB30000-0x0000029EECB31000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/3028-175-0x0000029EECB30000-0x0000029EECB31000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/4860-141-0x0000023E0C490000-0x0000023E0C4BB000-memory.dmp

                                  Filesize

                                  172KB

                                • memory/4860-44-0x0000023E0C4C0000-0x0000023E0C4C1000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/4860-33-0x00007FFB38530000-0x00007FFB38531000-memory.dmp

                                  Filesize

                                  4KB