Resubmissions

17-04-2024 11:59

240417-n55assfe71 10

17-04-2024 11:59

240417-n5yg9afe7x 10

17-04-2024 11:59

240417-n5rdyaea36 10

17-04-2024 11:59

240417-n5qseaea35 10

17-04-2024 11:59

240417-n5p6wafe6y 10

17-04-2024 06:14

240417-gzcv2aff75 10

Analysis

  • max time kernel
    299s
  • max time network
    299s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    17-04-2024 11:59

General

  • Target

    426bc8bac5cb97b5340b0f347cc70024fb5cc64041149ad923c815aedaf17a7a.exe

  • Size

    7.8MB

  • MD5

    dbcb8a833677953edaf640b4d627895c

  • SHA1

    688d21022848bddd94d1cf45d351cac0214c46be

  • SHA256

    426bc8bac5cb97b5340b0f347cc70024fb5cc64041149ad923c815aedaf17a7a

  • SHA512

    a789c91d86a0d09a62b12e1b11d97ed1410ec91d24f09fcc459d88432fa1a8a6bfccbf8427a68f950f2b3a13142668dfc21414c76867330babc4c13bb3553c15

  • SSDEEP

    196608:OIRcbH4jSteTGvaxwhzav1yo31CPwDv3uFZjeg2EeJUO9WLQkDxtw3iFFrS6XOfm:OdHsfuaxwZ6v1CPwDv3uFteg2EeJUO9a

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

sef7qgz77oamhl5gimls62lekmig5ormf6dcgftblhaxt2cn7emkbuid.onion:80

Attributes
  • communication_password

    81dc9bdb52d04dc20036dbd8313ed055

  • install_dir

    appdata

  • install_file

    HealthCheck.exe

  • tor_process

    WebDebugger

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.

  • Executes dropped EXE 12 IoCs
  • Loads dropped DLL 64 IoCs
  • UPX packed file 64 IoCs

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

  • Adds Run key to start application 2 TTPs 10 IoCs
  • Looks up external IP address via web service 7 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 10 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: RenamesItself 54 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\426bc8bac5cb97b5340b0f347cc70024fb5cc64041149ad923c815aedaf17a7a.exe
    "C:\Users\Admin\AppData\Local\Temp\426bc8bac5cb97b5340b0f347cc70024fb5cc64041149ad923c815aedaf17a7a.exe"
    1⤵
    • 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:2872
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4892
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4520
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1884
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1504
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:3828
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4652
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4684
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:3868
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:3192
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      PID:808
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      PID:2264
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      PID:3736

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe

    Filesize

    973KB

    MD5

    5cfe61ff895c7daa889708665ef05d7b

    SHA1

    5e58efe30406243fbd58d4968b0492ddeef145f2

    SHA256

    f9c1d18b50ce7484bf212cb61a9035602cfb90ebdfe66a077b9f6df73196a9f5

    SHA512

    43b6f10391a863a21f70e05cee41900729c7543750e118ff5d74c0cac3d1383f10bcb73eade2a28b555a393cada4795e204246129b01ad9177d1167827dd68da

  • C:\Users\Admin\AppData\Local\00e31655\tor\data\cached-certs

    Filesize

    20KB

    MD5

    1a49a2158b11f34642d35392d044eaaa

    SHA1

    8f4e71263074c93954304d84adf30f96b12f4da2

    SHA256

    1700d0605f0e7e6c43604222fedab60d2e1cb5668d800d50b880a0cad355867d

    SHA512

    9f78530e897b32f28d740b6305a72f26945c9811feb65de68974980782e55664944945890196b9bd66e4a51926f143707479723cb4e8ad5750297ebd77250e7d

  • C:\Users\Admin\AppData\Local\00e31655\tor\data\cached-microdesc-consensus.tmp

    Filesize

    2.6MB

    MD5

    c7e7df0119da2669c8d05dcf0f2cb4c5

    SHA1

    99324bd69525feb253c665023c9261b3f078818b

    SHA256

    6b92f204e74bf781bdd6e46152bf993deb86e367e749a29a47ba65f23d8846ff

    SHA512

    a9fd3259cbca5411df9791b215348d21b5ddd0cad942131ef852167737ee17f76e62c827edcd22c49868063d1af87d878663a15ec02cb53e8afbb75e19f45bab

  • C:\Users\Admin\AppData\Local\00e31655\tor\data\cached-microdescs.new

    Filesize

    20.3MB

    MD5

    5537975948d785cea5c74bf55d2c750f

    SHA1

    7990d8eba7aa7829f66a52890510812e0a0144c7

    SHA256

    65cd9da2201bed3aadf7c93a6bc75f594048c73784d66cc0931020d8fe0337dc

    SHA512

    1522c04d14d4ecea877ef73e73ab5a551e3e22a56c57e7c04d1b1685086242fe8e6f3451da59e5b6993f08a1a1f54dc69e319ab45a121a9c2ca4cc69af74d521

  • C:\Users\Admin\AppData\Local\00e31655\tor\data\cached-microdescs.new

    Filesize

    10.2MB

    MD5

    ae4776c8c55f76323ebe69af805fb93b

    SHA1

    c506afbad8d14a684619121d6befc7e668757e1f

    SHA256

    d93e75310f16379025e7aae0ffb77c26a9e7de3cd310b7439195621c9815700e

    SHA512

    3c1f07672ae36054e0f190c23dda4dd859e545659a54b7e4ba68404d19ce39fa9dd0bda613308b0c68d688121abaf6fd98fbd36a78276b145b62b666faa638d2

  • C:\Users\Admin\AppData\Local\00e31655\tor\data\state

    Filesize

    232B

    MD5

    f942115b95b6030d77e340ecf4e7bf7e

    SHA1

    944eb7309b1d6751b46cf701eaa446a775d16a46

    SHA256

    a9cec82d2e4b7bf8d1fb366d506d3535144afed030a7b998737cb96ba27630b2

    SHA512

    d43f43e073005038dfc75e5701582c208968866eec0e496d689d8a2745918ac66bdd48b54ac838f1aaff5e9cca55a2d7daba133f2e6a76497634daf826c6aa20

  • C:\Users\Admin\AppData\Local\00e31655\tor\libcrypto-1_1.dll

    Filesize

    1.7MB

    MD5

    2384a02c4a1f7ec481adde3a020607d3

    SHA1

    7e848d35a10bf9296c8fa41956a3daa777f86365

    SHA256

    c8db0ff0f7047ed91b057005e86ad3a23eae616253313aa047c560d9eb398369

    SHA512

    1ac74dd2d863acd7415ef8b9490a5342865462fbabdad0645da22424b0d56f5e9c389a3d7c41386f2414d6c4715c79a6ddecb6e6cff29e98319e1fd1060f4503

  • C:\Users\Admin\AppData\Local\00e31655\tor\libevent-2-1-6.dll

    Filesize

    366KB

    MD5

    099983c13bade9554a3c17484e5481f1

    SHA1

    a84e69ad9722f999252d59d0ed9a99901a60e564

    SHA256

    b65f9aa0c7912af64bd9b05e9322e994339a11b0c8907e6a6166d7b814bda838

    SHA512

    89f1a963de77873296395662d4150e3eff7a2d297fb9ec54ec06aa2e40d41e5f4fc4611e9bc34126d760c9134f2907fea3bebdf2fbbd7eaddad99f8e4be1f5e2

  • C:\Users\Admin\AppData\Local\00e31655\tor\libssl-1_1.dll

    Filesize

    439KB

    MD5

    c88826ac4bb879622e43ead5bdb95aeb

    SHA1

    87d29853649a86f0463bfd9ad887b85eedc21723

    SHA256

    c4d898b1a4285a45153af9ed88d79aa2a073dcb7225961b6b276b532b4d18b6f

    SHA512

    f733041ef35b9b8058fbcf98faa0d1fea5c0858fea941ecebbe9f083cd73e3e66323afffd8d734097fcdd5e6e59db4d94f51fca5874edbcd2a382d9ba6cd97b3

  • C:\Users\Admin\AppData\Local\00e31655\tor\libwinpthread-1.dll

    Filesize

    188KB

    MD5

    d407cc6d79a08039a6f4b50539e560b8

    SHA1

    21171adbc176dc19aaa5e595cd2cd4bd1dfd0c71

    SHA256

    92cfd0277c8781a15a0f17b7aee6cff69631b9606a001101631f04b3381efc4e

    SHA512

    378a10fed915591445d97c6d04e82d28008d8ea65e0e40c142b8ee59867035d561d4e103495c8f0d9c19b51597706ce0b450c25516aa0f1744579ffcd097ae0c

  • C:\Users\Admin\AppData\Local\00e31655\tor\torrc

    Filesize

    157B

    MD5

    f7f5ed03553f99d16dde40c6161a8d3c

    SHA1

    9a985a5f5d976c28790945ea1d0e8fe3f8af98d8

    SHA256

    3142e667dd2251755b91092cf15f90c64a1551f725d7a6f07abd0b083a6e6397

    SHA512

    72ac83d07d5081154fbee25f5ce815a2d8de18e265cc00434eaa5537fc97e7c3801001d85d7cd8e838f246cefa61c6fe8b9fd29b3368d639c7b6fc6df43e4e76

  • \Users\Admin\AppData\Local\00e31655\tor\libgcc_s_sjlj-1.dll

    Filesize

    286KB

    MD5

    b0d98f7157d972190fe0759d4368d320

    SHA1

    5715a533621a2b642aad9616e603c6907d80efc4

    SHA256

    2922193133dabab5b82088d4e87484e2fac75e9e0c765dacaf22eb5f4f18b0c5

    SHA512

    41ce56c428158533bf8b8ffe0a71875b5a3abc549b88d7d3e69acc6080653abea344d6d66fff39c04bf019fcaa295768d620377d85a933ddaf17f3d90df29496

  • \Users\Admin\AppData\Local\00e31655\tor\libssp-0.dll

    Filesize

    88KB

    MD5

    2c916456f503075f746c6ea649cf9539

    SHA1

    fa1afc1f3d728c89b2e90e14ca7d88b599580a9d

    SHA256

    cbb5236d923d4f4baf2f0d2797c72a2cbae42ef7ac0acce786daf5fdc5b456e6

    SHA512

    1c1995e1aa7c33c597c64122395275861d9219e46d45277d4f1768a2e06227b353d5d77d6b7cb655082dc6fb9736ad6f7cfcc0c90e02776e27d50857e792e3fd

  • \Users\Admin\AppData\Local\00e31655\tor\zlib1.dll

    Filesize

    52KB

    MD5

    add33041af894b67fe34e1dc819b7eb6

    SHA1

    6db46eb021855a587c95479422adcc774a272eeb

    SHA256

    8688bd7ca55dcc0c23c429762776a0a43fe5b0332dfd5b79ef74e55d4bbc1183

    SHA512

    bafc441198d03f0e7fe804bab89283c389d38884d0f87d81b11950a9b79fcbf7b32be4bb16f4fcd9179b66f865c563c172a46b4514a6087ef0af64425a4b2cfa

  • memory/1504-234-0x0000000072410000-0x00000000724D8000-memory.dmp

    Filesize

    800KB

  • memory/1504-219-0x00000000721A0000-0x000000007226E000-memory.dmp

    Filesize

    824KB

  • memory/1504-218-0x0000000072410000-0x00000000724D8000-memory.dmp

    Filesize

    800KB

  • memory/1504-239-0x00000000013A0000-0x00000000017A4000-memory.dmp

    Filesize

    4.0MB

  • memory/1504-237-0x0000000072B70000-0x0000000072B94000-memory.dmp

    Filesize

    144KB

  • memory/1504-238-0x0000000072300000-0x000000007240A000-memory.dmp

    Filesize

    1.0MB

  • memory/1504-235-0x00000000721A0000-0x000000007226E000-memory.dmp

    Filesize

    824KB

  • memory/1504-225-0x0000000072270000-0x00000000722F8000-memory.dmp

    Filesize

    544KB

  • memory/1504-236-0x0000000072BA0000-0x0000000072BE9000-memory.dmp

    Filesize

    292KB

  • memory/1504-222-0x0000000072300000-0x000000007240A000-memory.dmp

    Filesize

    1.0MB

  • memory/1504-227-0x0000000072BF0000-0x0000000072EBF000-memory.dmp

    Filesize

    2.8MB

  • memory/1504-220-0x0000000072BA0000-0x0000000072BE9000-memory.dmp

    Filesize

    292KB

  • memory/1504-221-0x0000000072B70000-0x0000000072B94000-memory.dmp

    Filesize

    144KB

  • memory/1884-176-0x00000000721A0000-0x000000007226E000-memory.dmp

    Filesize

    824KB

  • memory/1884-174-0x0000000072270000-0x00000000722F8000-memory.dmp

    Filesize

    544KB

  • memory/1884-165-0x00000000013A0000-0x00000000017A4000-memory.dmp

    Filesize

    4.0MB

  • memory/1884-291-0x00000000013A0000-0x00000000017A4000-memory.dmp

    Filesize

    4.0MB

  • memory/1884-168-0x0000000072BF0000-0x0000000072EBF000-memory.dmp

    Filesize

    2.8MB

  • memory/1884-185-0x0000000072BF0000-0x0000000072EBF000-memory.dmp

    Filesize

    2.8MB

  • memory/1884-170-0x0000000072410000-0x00000000724D8000-memory.dmp

    Filesize

    800KB

  • memory/1884-184-0x00000000013A0000-0x00000000017A4000-memory.dmp

    Filesize

    4.0MB

  • memory/1884-192-0x00000000013A0000-0x00000000017A4000-memory.dmp

    Filesize

    4.0MB

  • memory/1884-175-0x0000000072B70000-0x0000000072B94000-memory.dmp

    Filesize

    144KB

  • memory/1884-173-0x0000000072300000-0x000000007240A000-memory.dmp

    Filesize

    1.0MB

  • memory/1884-172-0x0000000072BA0000-0x0000000072BE9000-memory.dmp

    Filesize

    292KB

  • memory/2872-1-0x0000000073AF0000-0x0000000073B2A000-memory.dmp

    Filesize

    232KB

  • memory/2872-44-0x0000000072850000-0x000000007288A000-memory.dmp

    Filesize

    232KB

  • memory/2872-0-0x0000000000400000-0x0000000000BDB000-memory.dmp

    Filesize

    7.9MB

  • memory/2872-152-0x0000000072F80000-0x0000000072FBA000-memory.dmp

    Filesize

    232KB

  • memory/3828-268-0x00000000013A0000-0x00000000017A4000-memory.dmp

    Filesize

    4.0MB

  • memory/3828-277-0x0000000072410000-0x00000000724D8000-memory.dmp

    Filesize

    800KB

  • memory/3828-300-0x0000000072410000-0x00000000724D8000-memory.dmp

    Filesize

    800KB

  • memory/3828-302-0x0000000072BA0000-0x0000000072BE9000-memory.dmp

    Filesize

    292KB

  • memory/3828-303-0x0000000072B70000-0x0000000072B94000-memory.dmp

    Filesize

    144KB

  • memory/3828-301-0x00000000721A0000-0x000000007226E000-memory.dmp

    Filesize

    824KB

  • memory/3828-299-0x00000000013A0000-0x00000000017A4000-memory.dmp

    Filesize

    4.0MB

  • memory/3828-292-0x0000000072BF0000-0x0000000072EBF000-memory.dmp

    Filesize

    2.8MB

  • memory/3828-289-0x0000000072270000-0x00000000722F8000-memory.dmp

    Filesize

    544KB

  • memory/3828-286-0x0000000072300000-0x000000007240A000-memory.dmp

    Filesize

    1.0MB

  • memory/3828-283-0x0000000072B70000-0x0000000072B94000-memory.dmp

    Filesize

    144KB

  • memory/3828-281-0x0000000072BA0000-0x0000000072BE9000-memory.dmp

    Filesize

    292KB

  • memory/3828-278-0x00000000721A0000-0x000000007226E000-memory.dmp

    Filesize

    824KB

  • memory/4520-139-0x0000000072BF0000-0x0000000072EBF000-memory.dmp

    Filesize

    2.8MB

  • memory/4520-145-0x0000000073B70000-0x0000000073BB9000-memory.dmp

    Filesize

    292KB

  • memory/4520-151-0x00000000019B0000-0x0000000001A38000-memory.dmp

    Filesize

    544KB

  • memory/4520-150-0x0000000072B60000-0x0000000072BE8000-memory.dmp

    Filesize

    544KB

  • memory/4520-147-0x0000000072EC0000-0x0000000072FCA000-memory.dmp

    Filesize

    1.0MB

  • memory/4520-146-0x0000000073A40000-0x0000000073A64000-memory.dmp

    Filesize

    144KB

  • memory/4520-143-0x00000000730A0000-0x000000007316E000-memory.dmp

    Filesize

    824KB

  • memory/4520-141-0x0000000072FD0000-0x0000000073098000-memory.dmp

    Filesize

    800KB

  • memory/4520-137-0x00000000013A0000-0x00000000017A4000-memory.dmp

    Filesize

    4.0MB

  • memory/4520-153-0x00000000019B0000-0x0000000001A38000-memory.dmp

    Filesize

    544KB

  • memory/4520-124-0x00000000013A0000-0x00000000017A4000-memory.dmp

    Filesize

    4.0MB

  • memory/4652-308-0x0000000072410000-0x00000000724D8000-memory.dmp

    Filesize

    800KB

  • memory/4652-312-0x0000000072230000-0x000000007233A000-memory.dmp

    Filesize

    1.0MB

  • memory/4652-311-0x0000000072B70000-0x0000000072B94000-memory.dmp

    Filesize

    144KB

  • memory/4652-310-0x0000000072340000-0x000000007240E000-memory.dmp

    Filesize

    824KB

  • memory/4652-309-0x0000000072BA0000-0x0000000072BE9000-memory.dmp

    Filesize

    292KB

  • memory/4892-78-0x00000000013A0000-0x00000000017A4000-memory.dmp

    Filesize

    4.0MB

  • memory/4892-112-0x00000000013A0000-0x00000000017A4000-memory.dmp

    Filesize

    4.0MB

  • memory/4892-62-0x00000000013A0000-0x00000000017A4000-memory.dmp

    Filesize

    4.0MB

  • memory/4892-64-0x00000000730A0000-0x000000007316E000-memory.dmp

    Filesize

    824KB

  • memory/4892-65-0x0000000072FD0000-0x0000000073098000-memory.dmp

    Filesize

    800KB

  • memory/4892-77-0x00000000013A0000-0x00000000017A4000-memory.dmp

    Filesize

    4.0MB

  • memory/4892-33-0x00000000730A0000-0x000000007316E000-memory.dmp

    Filesize

    824KB

  • memory/4892-32-0x0000000073B70000-0x0000000073BB9000-memory.dmp

    Filesize

    292KB

  • memory/4892-38-0x0000000072EC0000-0x0000000072FCA000-memory.dmp

    Filesize

    1.0MB

  • memory/4892-34-0x0000000072FD0000-0x0000000073098000-memory.dmp

    Filesize

    800KB

  • memory/4892-86-0x0000000001BB0000-0x0000000001E7F000-memory.dmp

    Filesize

    2.8MB

  • memory/4892-87-0x00000000013A0000-0x00000000017A4000-memory.dmp

    Filesize

    4.0MB

  • memory/4892-31-0x00000000013A0000-0x00000000017A4000-memory.dmp

    Filesize

    4.0MB

  • memory/4892-95-0x00000000013A0000-0x00000000017A4000-memory.dmp

    Filesize

    4.0MB

  • memory/4892-39-0x0000000072B60000-0x0000000072BE8000-memory.dmp

    Filesize

    544KB

  • memory/4892-40-0x0000000001BB0000-0x0000000001E7F000-memory.dmp

    Filesize

    2.8MB

  • memory/4892-41-0x0000000001E80000-0x0000000001F08000-memory.dmp

    Filesize

    544KB

  • memory/4892-42-0x0000000072BF0000-0x0000000072EBF000-memory.dmp

    Filesize

    2.8MB

  • memory/4892-43-0x0000000073A40000-0x0000000073A64000-memory.dmp

    Filesize

    144KB