Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-10-2022 20:22

General

  • Target

    61dd5d6bb55760610c0bb9bd2a276f10bf9de7118d6991ba62b4246b5e8621f8.exe

  • Size

    936KB

  • MD5

    83886a33b7b682a23b68fff233edff50

  • SHA1

    0e78ea3d1251da29ab9ce8184b39a7f0e080cc8c

  • SHA256

    61dd5d6bb55760610c0bb9bd2a276f10bf9de7118d6991ba62b4246b5e8621f8

  • SHA512

    49647b07742dc26058406723164a212f7d701421c9241ac1009c13b4e332476edf4acf762a1e00ffd4f1bd1c86d1148b469728f8eda9bbb5562ad7c8e9908171

  • SSDEEP

    24576:Ps/Z9arRbSnCS/ZmExYaEsAGSTU9twGTdK8kUu1hLMP2:4CFbSCSIEiLsA+92udK8bK62

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in Windows directory 13 IoCs
  • Modifies boot configuration data using bcdedit 1 IoCs
  • Modifies data under HKEY_USERS 1 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\61dd5d6bb55760610c0bb9bd2a276f10bf9de7118d6991ba62b4246b5e8621f8.exe
    "C:\Users\Admin\AppData\Local\Temp\61dd5d6bb55760610c0bb9bd2a276f10bf9de7118d6991ba62b4246b5e8621f8.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:4012
    • C:\Windows\LMIBE82.tmp\lmi_rescue.exe
      "C:\Windows\LMIBE82.tmp\lmi_rescue.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Writes to the Master Boot Record (MBR)
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:800
  • C:\Windows\LMIBE82.tmp\LMI_Rescue_srv.exe
    "C:\Windows\LMIBE82.tmp\LMI_Rescue_srv.exe" -service -sid c0704696-a1b3-47ad-8a7e-0c8ed7e06c1c
    1⤵
    • Executes dropped EXE
    • Checks whether UAC is enabled
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\Windows\system32\bcdedit.exe
      C:\Windows\system32\bcdedit.exe /deletevalue safeboot
      2⤵
      • Modifies boot configuration data using bcdedit
      PID:3948

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\LMIBE82.tmp\LMI_Rescue_srv.exe

    Filesize

    1.8MB

    MD5

    41e774079ab1a967aacf265e505985de

    SHA1

    1524d82a7c46bac90e6f89f8b71a1dcd67a383f2

    SHA256

    0ca7b8d017a00edf2920bb9c29a86a70fa2c197b2af0c5c8cac264e5d3962228

    SHA512

    4fd5fdd9720af6cf317bf49bd1adb766b315ce6b6b6b2af0e3d915770601fb75e38ac60fc870a1de97d35bf5346eb035a73db5c65f4addb5647a4b1e1ef1f178

  • C:\Windows\LMIBE82.tmp\LMI_Rescue_srv.exe

    Filesize

    1.8MB

    MD5

    41e774079ab1a967aacf265e505985de

    SHA1

    1524d82a7c46bac90e6f89f8b71a1dcd67a383f2

    SHA256

    0ca7b8d017a00edf2920bb9c29a86a70fa2c197b2af0c5c8cac264e5d3962228

    SHA512

    4fd5fdd9720af6cf317bf49bd1adb766b315ce6b6b6b2af0e3d915770601fb75e38ac60fc870a1de97d35bf5346eb035a73db5c65f4addb5647a4b1e1ef1f178

  • C:\Windows\LMIBE82.tmp\lmi_rescue.exe

    Filesize

    1.8MB

    MD5

    41e774079ab1a967aacf265e505985de

    SHA1

    1524d82a7c46bac90e6f89f8b71a1dcd67a383f2

    SHA256

    0ca7b8d017a00edf2920bb9c29a86a70fa2c197b2af0c5c8cac264e5d3962228

    SHA512

    4fd5fdd9720af6cf317bf49bd1adb766b315ce6b6b6b2af0e3d915770601fb75e38ac60fc870a1de97d35bf5346eb035a73db5c65f4addb5647a4b1e1ef1f178

  • C:\Windows\LMIBE82.tmp\lmi_rescue.exe

    Filesize

    1.8MB

    MD5

    41e774079ab1a967aacf265e505985de

    SHA1

    1524d82a7c46bac90e6f89f8b71a1dcd67a383f2

    SHA256

    0ca7b8d017a00edf2920bb9c29a86a70fa2c197b2af0c5c8cac264e5d3962228

    SHA512

    4fd5fdd9720af6cf317bf49bd1adb766b315ce6b6b6b2af0e3d915770601fb75e38ac60fc870a1de97d35bf5346eb035a73db5c65f4addb5647a4b1e1ef1f178

  • C:\Windows\LMIBE82.tmp\logo.bmp

    Filesize

    3KB

    MD5

    afbfcdb13124bc087501dfdb0b3d2d3d

    SHA1

    197bd2df5aa8d4987c0db8de46c624881cf49aee

    SHA256

    4fb876a42bbdbd6aae4d8a38960369183923a5654849b42677f1c0b04afa7da9

    SHA512

    55966b77998de857f06975b2cd2d33768e538aa463df406f3c73a9ef49ff26fcc4221fab924232be379d773c857499cb88565d9d3b699efd0fbe48fe7fb69404

  • C:\Windows\LMIBE82.tmp\params.txt

    Filesize

    242B

    MD5

    3cbca6ee1aa7700b2c1b5ae15a800bb3

    SHA1

    3898e19c19e0f6d4e40ebcb5d0d4d6d393e3b31f

    SHA256

    6d88439028bde17f406712fe7491d50bdfb8a17ee080417b151acf3ce7083002

    SHA512

    f089a6068fcd9658e00dba8aeb9c7a04222e35d466aec98af06814df3c60ccd3d3f2d76d1966cc052943030068e61c7b9d171693138697b135f4ed839ded6bc4

  • C:\Windows\LMIBE82.tmp\params.txt

    Filesize

    297B

    MD5

    0a122d26b605e2df514d9bf9ee8a2bf7

    SHA1

    ba32e9740e3db91dab2a23a578cf8923e277103f

    SHA256

    106cf37990d7cd66edf4064e8342436ace7ad144f7e756fd8e4af32e707d9f49

    SHA512

    752711fbef54fac4f7dff8d1a76c8b012986ea731ff3334a18dbd2eff10fd26b8b0d3a987202a3b6d8426f4462599632038132772c7db45dbd5d0efdd4a8bd7b

  • C:\Windows\LMIBE82.tmp\ra64app.exe

    Filesize

    208KB

    MD5

    68df4da2cb339832b713d45bf4f2dec1

    SHA1

    13ea77ad5724e5c6edc44a0e872d85c3a93ea593

    SHA256

    636e0e368a66049eb2b1e688549f50e93258664f9a85f0477d5e1192242c25a8

    SHA512

    80d81ca71bc5c8d570b6cca8f8f815cfa6d8cd7a3dabd8d9da46656efc8f6a68be2f5e1ca14378a250e3f2886acb116309960b7fce26ed2ed33bd6d9006167ef

  • C:\Windows\LMIBE82.tmp\rahook.dll

    Filesize

    173KB

    MD5

    a74e732e69462a88ab84963abe26e055

    SHA1

    67ed07198a8d95e10e4e2c1c31f065c229d62e7b

    SHA256

    d079268ff103765a4fdab0e4ad44f1b6b5fe00d1aad9931eef63fd682818396f

    SHA512

    fed6cea867b41c5a0ffc875b7b80dc2b5ce9f15b4fbefc2d7d3ff03f7f5f0278c4c933f0a2e26c9938b9426aff9763300be143f2fde42a9533c93b797aca7927

  • C:\Windows\LMIBE82.tmp\rahook.dll

    Filesize

    173KB

    MD5

    a74e732e69462a88ab84963abe26e055

    SHA1

    67ed07198a8d95e10e4e2c1c31f065c229d62e7b

    SHA256

    d079268ff103765a4fdab0e4ad44f1b6b5fe00d1aad9931eef63fd682818396f

    SHA512

    fed6cea867b41c5a0ffc875b7b80dc2b5ce9f15b4fbefc2d7d3ff03f7f5f0278c4c933f0a2e26c9938b9426aff9763300be143f2fde42a9533c93b797aca7927

  • C:\Windows\LMIBE82.tmp\rescue.ico

    Filesize

    1KB

    MD5

    3ea098064b51c0798caa341a1bd0dd66

    SHA1

    ac4e762994a6946c7b614fe7ef1b82ce76fa4ece

    SHA256

    81672c20b4a515cc5af55ec8526bad540b92aba41d2e3e106415471c59c17a23

    SHA512

    757a2ff128f24620bafdae37c6c4a9657e2fa0ef3e21f5ddcad665284e6288a4df53a47948fb16ba62e8860c5ec7c04a37d608c62702608bde08e0ddd28cbd41

  • C:\Windows\LMIBE82.tmp\rescue.log

    Filesize

    3KB

    MD5

    6a89942ec75e7126307faf496983cf14

    SHA1

    579f3449adf8d44175bc3faf9a8d7ef2eefc13cc

    SHA256

    cbf42eddb55b6c032d9f1984289acbd781cf64a43a95524f6187a4b4412f2ede

    SHA512

    198a0f98e1ba051d9e517055a71e04bcd563d869c9804bf48ded31e60c9f3e9e08a66bef04e912407bd0495de561d7fb076bde124bf242beb965037d68aed8cc

  • C:\Windows\LMIBE82.tmp\rescue.log

    Filesize

    4KB

    MD5

    cfa62a2e5a764ecce6bf6723415279e2

    SHA1

    3acb6adcd6e00026abee0d1bafa6371f5ca54949

    SHA256

    a51a9f6a401def5f7c38a6e4ea250f7ca9445f0742ef7e2220cba40d2df9a01f

    SHA512

    bc578fb3049047007299874f99aca61d75e3307ec16c9410e15f452c5c3e835d29aa605009c4ccbdd99ca19e44e49d74b8a2a28aa39339ae75ef1880edd5ea55

  • C:\Windows\LMIBE82.tmp\rescue.log

    Filesize

    4KB

    MD5

    a88bfd570e7b75f6d90ecaa00482e574

    SHA1

    755d3f62831dfb1dd84346fad150dd0004e4f5dd

    SHA256

    60a9ded4c87b5fc8ea2e59ef9a61c7935b27a4673a781d8588fadb7a46130307

    SHA512

    ccfe2d98a4f5b82f9f4da217f23031460b3382d1f1ce039ee19514d3f89a660007e48a412d373ea3f24b2e58de56e62bd991a2b5ce3a85f9df25ab4b40adfd59

  • C:\Windows\LMIBE82.tmp\rescue.log

    Filesize

    9KB

    MD5

    1037b9874906794ecb501a15f66e9152

    SHA1

    22188b08df25bc1def8a49a3dc29bf1f0c2ff60a

    SHA256

    7480c00ecdd847d9b5021cde1523148e81ea0c3198e71ce3a97e1a5a8b97418b

    SHA512

    809e58e87106a1f9ccb8ba04ac53614e51ae7b7be1df9a11a42e0c0b5c806b9bb1cfb0079d263857736851a37778237067eaa3a99de14feee5a31b4950a49545

  • C:\Windows\LMIBE82.tmp\rescue.log

    Filesize

    9KB

    MD5

    0d7386127bcaa2f33b38c9b4e6600dbf

    SHA1

    01929725e155665c401d4064a60cf16626c87bda

    SHA256

    73244803cd54f490f0e43ff993a3ae86bf3c3c89b740b8300576465e17ddc7d2

    SHA512

    e22c2d6352eba537a629b6ed7faabb7c36eaf140bbbe7be7ef0aeaabe3d778daaed9b15c19ea3e8ab3163ce5809253f48ca7165b4ec1870365aa9074ab468cae

  • C:\Windows\LMIBE82.tmp\rescue.log

    Filesize

    9KB

    MD5

    f907e8312015eb1e4db3acb561698ce0

    SHA1

    80439833dc42c1588a2aaa234682284a6266c687

    SHA256

    cf1dbb065ef16e94e3b1da81c8ac5a2296dd106b3a7390f1eeed7710a0cf8a06

    SHA512

    c10fc4ab44521245ba7113678c92ea15c00cc1fe06878c66b4f64a1cd30d5143e1082fc2bf2ebd821d94591c3366bd3e03aa460b4880ca4255885dfa4399caa9

  • C:\Windows\LMIBE82.tmp\rescue.log

    Filesize

    10KB

    MD5

    e71eac46c2e10c9da57c712fbd065c7e

    SHA1

    fc8d4b017b87d5f2aead613e70941332f6718e33

    SHA256

    78e32c7b0ab72ee24e0ae3ff9f6af2549cf6eded02350e45ccdf34e43519859f

    SHA512

    fa511e16e082c186edb784e8a4398c6f9c2cfda5a15419e901fb2ec1008f5cfbd31bec56cd11f87bbeca65108e980e0e5fc64226b4d5a82672b0e5d2604c98b7

  • C:\Windows\LMIBE82.tmp\rescue.log

    Filesize

    10KB

    MD5

    b3a0ae86fc0e36213400bd3c1a935728

    SHA1

    d414d15e872f8b311ba91cae2a7cc13516b5d359

    SHA256

    194028e0f1736e67d131233156e5d84192d46bd2c6420737c3bda0b65efc48df

    SHA512

    5e05182d6729d250d6ef25e1dc950f3fffc523eeb71af01922551def745fe56da386aeab8d3eb3618d12e27cdf30f7ddd6abbbf09bb4d4ba5c0c8e4ad413d19f

  • C:\Windows\LMIBE82.tmp\rescue.log

    Filesize

    11KB

    MD5

    ff59f0e3ed09e55400e02d4ddb08f46b

    SHA1

    8b8839e7c9474cee3bf8a3733677c105bc78deeb

    SHA256

    ee9a723437049eb9431321a91550de93a8e47f4e58db83918e9cf30aad671669

    SHA512

    1db22ddea773252fd72599bfd8c30f76e18ae3bf8a5626f70d6cd7b1c1691da2465506c6e82a0b8c92a3a6520a20dac1442d75296d15248194e9a8d99ba6d81d