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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
    12-04-2024 13:18

General

  • Target

    stub_tor.exe

  • Size

    7.8MB

  • MD5

    c76390d9e1052d9e708940d67b5c135d

  • SHA1

    a370a73a9dd746584428e8a939288ecffd3c80f7

  • SHA256

    caf48b67e7bb94a178426fc7ce6b9ed50ffb2f3813a7c68900f21bfffb24e44f

  • SHA512

    4d2d38d8719cdac8a406cfa96944ee99d2d926511e64d6b6aa964d40d0d9ddb1dc6e4e6253bcb1e77b32613c0b4409ab32ea54c476018fee963574edb043dd3b

  • SSDEEP

    196608:oIRcbH4jSteTGvExwhzav1yo31CPwDv3uFZjeg2EeJUO9WLQkDxtw3iFFrS6XOf:odHsfuExwZ6v1CPwDv3uFteg2EeJUO9E

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

7sbl4dpbubwjjghdquwg47fyq7rookd4bgm2ypm2kjzkivd7tomvczqd.onion:440

Attributes
  • communication_password

    4124bc0a9335c27f086f24ba207a4912

  • install_dir

    Minecraft

  • install_file

    Runtime_Broker

  • tor_process

    tor

Signatures

  • BitRAT

    BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

  • ACProtect 1.3x - 1.4x DLL software 7 IoCs

    Detects file using ACProtect software.

  • 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
  • UPX packed file 44 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: RenamesItself 28 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\stub_tor.exe
    "C:\Users\Admin\AppData\Local\Temp\stub_tor.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4076
    • C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe
      "C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4004
    • C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe
      "C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:3792
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3684 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4164

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\a5b260eb\tor\data\cached-certs
      Filesize

      20KB

      MD5

      91ed8ed48b44f361f3f7cfffbd24759b

      SHA1

      f84695744fc64f2b9e6046f300cf56e75d76bf45

      SHA256

      63f67eaa75c401d0bf3fafa89bece329b279ac1a0735c492d4e2f01b160ea11d

      SHA512

      d9b4755c7ab718d2f45882a704ebff4ef49a84b84d28af600e7e08fe3b355d9a87381486be6fba919bcd95940ce0e838498014cca2e3d41c8716c8af490b0b4b

    • C:\Users\Admin\AppData\Local\a5b260eb\tor\data\cached-microdesc-consensus.tmp
      Filesize

      2.7MB

      MD5

      bd169440e5172999c9752977e42dd84c

      SHA1

      74e4b0c0a08e16fb76ef1d0d64b0cfdd8d8ce1a4

      SHA256

      1b9122b9faabbeccac50893248c8bb728ebf224a011a7f4db5d6f06e59e9e995

      SHA512

      8d72f5a5c0fb829db8a75d003a90f668918cc4bc13f4c086c4dec3efa30af0583ccf82af06d3bfb0f16086dcc702c81947e16ea8cda78753c747cb8dcee0cbfd

    • C:\Users\Admin\AppData\Local\a5b260eb\tor\data\cached-microdescs.new
      Filesize

      7.1MB

      MD5

      3f714fb83e393b33baa98b788df0a460

      SHA1

      634aec2d268f3cf732db46122ab0e3f1a7769bed

      SHA256

      24056f704a3f88537258eb0eff7f183b3addfcb70ff253deb1c0e9253527006f

      SHA512

      c55a1d1975c3ee1e16c77876d830f3fe7001669524e75478d42176ea637f6d55ba4aef7543446ec06b4371343b9b663df163d2cf04132257c6e35b73da5dc66d

    • C:\Users\Admin\AppData\Local\a5b260eb\tor\data\cached-microdescs.new
      Filesize

      13.4MB

      MD5

      9f8f05f38db5ba16b210d0c3239867f4

      SHA1

      8f30ae8cddfbe02c78acc7f5879fbe496704d6a5

      SHA256

      910ad0667a57cfb9b07f8b8fcc6286dc257bd58e87767457c068efa086476c27

      SHA512

      f4b167325bdca233a55ff21c4f32bbdad99b2d83632bac091e44ca25fbeae5769aa7eea618a2b5c284d5884611aba72aee72c4984a95a6b14313503965d317c6

    • C:\Users\Admin\AppData\Local\a5b260eb\tor\data\state
      Filesize

      232B

      MD5

      7da352e03c951739132ce12ff96fb126

      SHA1

      e73f1f68cf70efdfe44987fc86aef25f4b6d3e37

      SHA256

      e454f05fc13049105fbb2695f490231d86db819e55873354b8e9d8f172963196

      SHA512

      6afc9107b7061ff122c5b15acf167b24845ad2bf8ab0eecc965c46e2f0813d02d38518a5df57a46786a11d2ace906a6a7a24b956a1d0fd49a6009465ed30ab4e

    • C:\Users\Admin\AppData\Local\a5b260eb\tor\libcrypto-1_1.dll
      Filesize

      1.7MB

      MD5

      2384a02c4a1f7ec481adde3a020607d3

      SHA1

      7e848d35a10bf9296c8fa41956a3daa777f86365

      SHA256

      c8db0ff0f7047ed91b057005e86ad3a23eae616253313aa047c560d9eb398369

      SHA512

      1ac74dd2d863acd7415ef8b9490a5342865462fbabdad0645da22424b0d56f5e9c389a3d7c41386f2414d6c4715c79a6ddecb6e6cff29e98319e1fd1060f4503

    • C:\Users\Admin\AppData\Local\a5b260eb\tor\libevent-2-1-6.dll
      Filesize

      366KB

      MD5

      099983c13bade9554a3c17484e5481f1

      SHA1

      a84e69ad9722f999252d59d0ed9a99901a60e564

      SHA256

      b65f9aa0c7912af64bd9b05e9322e994339a11b0c8907e6a6166d7b814bda838

      SHA512

      89f1a963de77873296395662d4150e3eff7a2d297fb9ec54ec06aa2e40d41e5f4fc4611e9bc34126d760c9134f2907fea3bebdf2fbbd7eaddad99f8e4be1f5e2

    • C:\Users\Admin\AppData\Local\a5b260eb\tor\libgcc_s_sjlj-1.dll
      Filesize

      286KB

      MD5

      b0d98f7157d972190fe0759d4368d320

      SHA1

      5715a533621a2b642aad9616e603c6907d80efc4

      SHA256

      2922193133dabab5b82088d4e87484e2fac75e9e0c765dacaf22eb5f4f18b0c5

      SHA512

      41ce56c428158533bf8b8ffe0a71875b5a3abc549b88d7d3e69acc6080653abea344d6d66fff39c04bf019fcaa295768d620377d85a933ddaf17f3d90df29496

    • C:\Users\Admin\AppData\Local\a5b260eb\tor\libssl-1_1.dll
      Filesize

      439KB

      MD5

      c88826ac4bb879622e43ead5bdb95aeb

      SHA1

      87d29853649a86f0463bfd9ad887b85eedc21723

      SHA256

      c4d898b1a4285a45153af9ed88d79aa2a073dcb7225961b6b276b532b4d18b6f

      SHA512

      f733041ef35b9b8058fbcf98faa0d1fea5c0858fea941ecebbe9f083cd73e3e66323afffd8d734097fcdd5e6e59db4d94f51fca5874edbcd2a382d9ba6cd97b3

    • C:\Users\Admin\AppData\Local\a5b260eb\tor\libssp-0.dll
      Filesize

      88KB

      MD5

      2c916456f503075f746c6ea649cf9539

      SHA1

      fa1afc1f3d728c89b2e90e14ca7d88b599580a9d

      SHA256

      cbb5236d923d4f4baf2f0d2797c72a2cbae42ef7ac0acce786daf5fdc5b456e6

      SHA512

      1c1995e1aa7c33c597c64122395275861d9219e46d45277d4f1768a2e06227b353d5d77d6b7cb655082dc6fb9736ad6f7cfcc0c90e02776e27d50857e792e3fd

    • C:\Users\Admin\AppData\Local\a5b260eb\tor\libwinpthread-1.dll
      Filesize

      188KB

      MD5

      d407cc6d79a08039a6f4b50539e560b8

      SHA1

      21171adbc176dc19aaa5e595cd2cd4bd1dfd0c71

      SHA256

      92cfd0277c8781a15a0f17b7aee6cff69631b9606a001101631f04b3381efc4e

      SHA512

      378a10fed915591445d97c6d04e82d28008d8ea65e0e40c142b8ee59867035d561d4e103495c8f0d9c19b51597706ce0b450c25516aa0f1744579ffcd097ae0c

    • C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe
      Filesize

      973KB

      MD5

      5cfe61ff895c7daa889708665ef05d7b

      SHA1

      5e58efe30406243fbd58d4968b0492ddeef145f2

      SHA256

      f9c1d18b50ce7484bf212cb61a9035602cfb90ebdfe66a077b9f6df73196a9f5

      SHA512

      43b6f10391a863a21f70e05cee41900729c7543750e118ff5d74c0cac3d1383f10bcb73eade2a28b555a393cada4795e204246129b01ad9177d1167827dd68da

    • C:\Users\Admin\AppData\Local\a5b260eb\tor\torrc
      Filesize

      157B

      MD5

      8ea874223f853aac5ea469ccc164a8f9

      SHA1

      70d31011547870c9f930496dbf9fb7ec296a8c28

      SHA256

      95e134044f370b2a96408d581f3c0381fe95388dae27c6d9598f44dc7d72b9ed

      SHA512

      fd1dc20219fbf4863926d90b5a2127b65e165656eac4493a80288d0c57fc309ed998b5d30fe8ce313987ee367fc4fe9b6026ff32d4391950d7f26ca7b6fdcdf2

    • C:\Users\Admin\AppData\Local\a5b260eb\tor\zlib1.dll
      Filesize

      52KB

      MD5

      add33041af894b67fe34e1dc819b7eb6

      SHA1

      6db46eb021855a587c95479422adcc774a272eeb

      SHA256

      8688bd7ca55dcc0c23c429762776a0a43fe5b0332dfd5b79ef74e55d4bbc1183

      SHA512

      bafc441198d03f0e7fe804bab89283c389d38884d0f87d81b11950a9b79fcbf7b32be4bb16f4fcd9179b66f865c563c172a46b4514a6087ef0af64425a4b2cfa

    • memory/3792-194-0x0000000073BD0000-0x0000000073C58000-memory.dmp
      Filesize

      544KB

    • memory/3792-152-0x0000000074030000-0x00000000740F8000-memory.dmp
      Filesize

      800KB

    • memory/3792-190-0x0000000073C90000-0x0000000073F5F000-memory.dmp
      Filesize

      2.8MB

    • memory/3792-189-0x0000000000390000-0x0000000000794000-memory.dmp
      Filesize

      4.0MB

    • memory/3792-193-0x0000000073AC0000-0x0000000073BCA000-memory.dmp
      Filesize

      1.0MB

    • memory/3792-195-0x0000000073C60000-0x0000000073C84000-memory.dmp
      Filesize

      144KB

    • memory/3792-196-0x0000000073F60000-0x000000007402E000-memory.dmp
      Filesize

      824KB

    • memory/3792-197-0x0000000000DD0000-0x0000000000E19000-memory.dmp
      Filesize

      292KB

    • memory/3792-147-0x0000000073C90000-0x0000000073F5F000-memory.dmp
      Filesize

      2.8MB

    • memory/3792-191-0x0000000074030000-0x00000000740F8000-memory.dmp
      Filesize

      800KB

    • memory/3792-157-0x0000000073F60000-0x000000007402E000-memory.dmp
      Filesize

      824KB

    • memory/3792-159-0x0000000000DD0000-0x0000000000E19000-memory.dmp
      Filesize

      292KB

    • memory/3792-158-0x0000000074100000-0x0000000074149000-memory.dmp
      Filesize

      292KB

    • memory/3792-156-0x0000000073C60000-0x0000000073C84000-memory.dmp
      Filesize

      144KB

    • memory/3792-155-0x0000000073BD0000-0x0000000073C58000-memory.dmp
      Filesize

      544KB

    • memory/3792-154-0x0000000073AC0000-0x0000000073BCA000-memory.dmp
      Filesize

      1.0MB

    • memory/3792-142-0x0000000000390000-0x0000000000794000-memory.dmp
      Filesize

      4.0MB

    • memory/4004-23-0x0000000000390000-0x0000000000794000-memory.dmp
      Filesize

      4.0MB

    • memory/4004-56-0x0000000074100000-0x0000000074149000-memory.dmp
      Filesize

      292KB

    • memory/4004-98-0x0000000000390000-0x0000000000794000-memory.dmp
      Filesize

      4.0MB

    • memory/4004-120-0x0000000000390000-0x0000000000794000-memory.dmp
      Filesize

      4.0MB

    • memory/4004-89-0x0000000000390000-0x0000000000794000-memory.dmp
      Filesize

      4.0MB

    • memory/4004-145-0x0000000000390000-0x0000000000794000-memory.dmp
      Filesize

      4.0MB

    • memory/4004-30-0x0000000074030000-0x00000000740F8000-memory.dmp
      Filesize

      800KB

    • memory/4004-80-0x0000000000390000-0x0000000000794000-memory.dmp
      Filesize

      4.0MB

    • memory/4004-72-0x0000000000390000-0x0000000000794000-memory.dmp
      Filesize

      4.0MB

    • memory/4004-64-0x0000000000390000-0x0000000000794000-memory.dmp
      Filesize

      4.0MB

    • memory/4004-63-0x0000000000390000-0x0000000000794000-memory.dmp
      Filesize

      4.0MB

    • memory/4004-58-0x0000000073F60000-0x000000007402E000-memory.dmp
      Filesize

      824KB

    • memory/4004-57-0x0000000074030000-0x00000000740F8000-memory.dmp
      Filesize

      800KB

    • memory/4004-107-0x0000000000390000-0x0000000000794000-memory.dmp
      Filesize

      4.0MB

    • memory/4004-55-0x0000000000390000-0x0000000000794000-memory.dmp
      Filesize

      4.0MB

    • memory/4004-29-0x0000000073F60000-0x000000007402E000-memory.dmp
      Filesize

      824KB

    • memory/4004-42-0x0000000073C90000-0x0000000073F5F000-memory.dmp
      Filesize

      2.8MB

    • memory/4004-41-0x0000000073AC0000-0x0000000073BCA000-memory.dmp
      Filesize

      1.0MB

    • memory/4004-40-0x0000000073BD0000-0x0000000073C58000-memory.dmp
      Filesize

      544KB

    • memory/4004-39-0x0000000073C60000-0x0000000073C84000-memory.dmp
      Filesize

      144KB

    • memory/4004-24-0x0000000074100000-0x0000000074149000-memory.dmp
      Filesize

      292KB

    • memory/4076-0-0x0000000000400000-0x0000000000BD8000-memory.dmp
      Filesize

      7.8MB

    • memory/4076-192-0x0000000073920000-0x0000000073959000-memory.dmp
      Filesize

      228KB

    • memory/4076-43-0x00000000736B0000-0x00000000736E9000-memory.dmp
      Filesize

      228KB

    • memory/4076-88-0x00000000747C0000-0x00000000747F9000-memory.dmp
      Filesize

      228KB

    • memory/4076-1-0x0000000074C00000-0x0000000074C39000-memory.dmp
      Filesize

      228KB