Analysis

  • max time kernel
    48s
  • max time network
    14s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    10-11-2020 07:28

General

  • Target

    1b7773d4ecc31379d1232d053dcde99c3fccd42a696770b126fb7cf110d5dd92.exe

  • Size

    5.2MB

  • MD5

    343fab52a4b0e58925719e6451903093

  • SHA1

    845fe3f231d26295dbda9feaa6a48d29e504aac1

  • SHA256

    1b7773d4ecc31379d1232d053dcde99c3fccd42a696770b126fb7cf110d5dd92

  • SHA512

    5ae92127ee496819c7d36ffb8cf5f17a840cee010dc7c90958ddc60e072ed8f8476623b4bdd0bfd0823fd5540695f35f80efee65c4096bbade18013c6af8c303

Malware Config

Signatures

  • Cobalt Strike reflective loader 29 IoCs

    Detects the reflective loader used by Cobalt Strike.

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

  • Executes dropped EXE 14 IoCs
  • UPX packed file 29 IoCs

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

  • Loads dropped DLL 15 IoCs
  • JavaScript code in executable 29 IoCs
  • Drops file in Windows directory 15 IoCs
  • Suspicious use of WriteProcessMemory 45 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1b7773d4ecc31379d1232d053dcde99c3fccd42a696770b126fb7cf110d5dd92.exe
    "C:\Users\Admin\AppData\Local\Temp\1b7773d4ecc31379d1232d053dcde99c3fccd42a696770b126fb7cf110d5dd92.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:2036
    • C:\Windows\System\AbHhiKR.exe
      C:\Windows\System\AbHhiKR.exe
      2⤵
      • Executes dropped EXE
      PID:1716
    • C:\Windows\System\LhjtzVP.exe
      C:\Windows\System\LhjtzVP.exe
      2⤵
      • Executes dropped EXE
      PID:1584
    • C:\Windows\System\nphnSAx.exe
      C:\Windows\System\nphnSAx.exe
      2⤵
      • Executes dropped EXE
      PID:788
    • C:\Windows\System\MfINcom.exe
      C:\Windows\System\MfINcom.exe
      2⤵
      • Executes dropped EXE
      PID:1968
    • C:\Windows\System\tbQsdfk.exe
      C:\Windows\System\tbQsdfk.exe
      2⤵
      • Executes dropped EXE
      PID:1964
    • C:\Windows\System\ImKBRkC.exe
      C:\Windows\System\ImKBRkC.exe
      2⤵
      • Executes dropped EXE
      PID:1784
    • C:\Windows\System\UiSqGfm.exe
      C:\Windows\System\UiSqGfm.exe
      2⤵
      • Executes dropped EXE
      PID:1736
    • C:\Windows\System\jEOVZeu.exe
      C:\Windows\System\jEOVZeu.exe
      2⤵
      • Executes dropped EXE
      PID:1796
    • C:\Windows\System\qtmwUIQ.exe
      C:\Windows\System\qtmwUIQ.exe
      2⤵
      • Executes dropped EXE
      PID:1652
    • C:\Windows\System\LjpjwcZ.exe
      C:\Windows\System\LjpjwcZ.exe
      2⤵
      • Executes dropped EXE
      PID:1892
    • C:\Windows\System\vlpSjEN.exe
      C:\Windows\System\vlpSjEN.exe
      2⤵
      • Executes dropped EXE
      PID:1996
    • C:\Windows\System\XeSboTK.exe
      C:\Windows\System\XeSboTK.exe
      2⤵
      • Executes dropped EXE
      PID:1500
    • C:\Windows\System\REsPCha.exe
      C:\Windows\System\REsPCha.exe
      2⤵
      • Executes dropped EXE
      PID:1020
    • C:\Windows\System\fCFzfMM.exe
      C:\Windows\System\fCFzfMM.exe
      2⤵
      • Executes dropped EXE
      PID:772
    • C:\Windows\System\exwchps.exe
      C:\Windows\System\exwchps.exe
      2⤵
        PID:440

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • C:\Windows\system\AbHhiKR.exe
      MD5

      187a2ea9ae324be21477cc7a1aa4dccc

      SHA1

      b5ee0e7d01fa545d134fa89020f663e7f8144e87

      SHA256

      625caeb55dc73c416e8f26751156da4dc7d79691d07c34b1f4b7784565f162ce

      SHA512

      5b4f8b6f6a2cbffaac9ced2073b0d2847306c577d700ac20ec2867b0732dcf4c3c4a9836b58961cfc84d07fb6d60bcb78223ea9d4cc561b11b930203e20d145d

    • C:\Windows\system\ImKBRkC.exe
      MD5

      363065ef8b7850d0770879046fb5816e

      SHA1

      271fb300c6d0cc8563509e09126f717cede9707c

      SHA256

      d726123bcdd9782069be62698950ac3f519bca1f5a9a56cc9b44b93cb6935059

      SHA512

      fba08b1dcc5b64e8420b64d8632e30fc6172a19d99efff3e574ef1b51a80326222e51796673d13d82b04b02533e3feeab587f5f5364a05ee8e2efe29f635918d

    • C:\Windows\system\LhjtzVP.exe
      MD5

      ade0d5c7a8d17d089402e9e836ab87e3

      SHA1

      dc33cdbab13b49b11559e29920088a8c57c1b221

      SHA256

      73aec9df4053e38efb8059bf3ff65460547800553684a5f4f7ecf3f44fc62d0e

      SHA512

      8da7f0c742e03d18861cd856a76d313db7f2bcd4e232b02ab81b0390ff56c513c186cf01d160951ea5d644bd3185c586fb9334ee75249d6fe1883fd4dc574b38

    • C:\Windows\system\LjpjwcZ.exe
      MD5

      a04899d5ddd7c28b3a923f8fcb1b2f01

      SHA1

      be81f5d4e2faccf986273c6ced4475436abf2126

      SHA256

      b3bee7acca42402bdc74c86584daf4f9f0e4a7c97333d7023f6ba0dc41830313

      SHA512

      a6c08b627c870274cb6ddb4607a713df0b034202e2049e2af8076b8e5b141f78a286e55e3f32cd10e0a863e6afc2006a073b8347932b0ba7df5ae42dfa0d52d1

    • C:\Windows\system\MfINcom.exe
      MD5

      20c2962441a138eb67a696f047e3bf3f

      SHA1

      da55e74d70ac420cc0d3cf3a4362d1f5e079176f

      SHA256

      5618964664d9f9d840c923a64c3954fff8545be46a3a90614b83f24284f71f1b

      SHA512

      70c681eac592610381c5bd7233162d54daf60b5cc378d4e6686419634fd4a565f34a3defe26ae88540cc7332671060eddf02167fbfd7fa914b942ba1af982265

    • C:\Windows\system\REsPCha.exe
      MD5

      8b7ef8d29d5ed073be75f4d162054317

      SHA1

      bf19718bebbaab939ebb46ea173474046ecca181

      SHA256

      d358f41ade31bb765134bb351c686b8facc4864c56d58bf6a9e016803930a9e4

      SHA512

      44efc1c24d2cf87b3986c6b14e34463f4619686d8b912483233f3e0a3a070378ac5ea8727bc8db85c8584f02f3d066679b7a4b9f6fb268a9b3eec7d1c4814e27

    • C:\Windows\system\UiSqGfm.exe
      MD5

      40d70670bbd22d32f5d0783dd36c6d71

      SHA1

      0bb77bb204609012abf413c9c09e8b9c31499125

      SHA256

      56945fdfd11e1243eac55089d291b617a0209753a51399cea0415c39d4da76f0

      SHA512

      6a50258b71c2bdfc19c7b2148d8d7070522617fc4b98b227bfc902b58cfe46bc14199c10c3a8e7796b4d8366b544b645dd6004eeb6d75eee01ddf57483ede70b

    • C:\Windows\system\XeSboTK.exe
      MD5

      e48b997d4654895c788eed6af37e90e3

      SHA1

      7abd6de042610c0e00c0f06b76ec9735ad956da5

      SHA256

      43f0cbeb6dc1b2d64596f75aeededca7bfd2ad26811669a0831be1b98e0d7c15

      SHA512

      9c4bb9d7df3bc49979bb5bd5e634565ab81062f156cfc7392694982f29caaee4d76d8fb081c4ebdb09dcc5f83f352de751f95ad84cc018fe7b78ae989b82a378

    • C:\Windows\system\fCFzfMM.exe
      MD5

      f233b6b09690023f3d3daa8bb28bf9ac

      SHA1

      b645a997322bc2b755ff9da0dcb8218fe35429ef

      SHA256

      fc527dbe288fad0dca7fb46a038ed796106e66760a46b24029baa7aed887ff31

      SHA512

      902b458145b586fafc81c9d29edf5f2cff6649b2111429cf640c60ec7e8952fa0303bb571fa0bcc12c9fea1ab9dcbdbe68674d30fd53ec6a2ddbf864b7a31be5

    • C:\Windows\system\jEOVZeu.exe
      MD5

      7303e2b55659875aa9b6dfd251086211

      SHA1

      3b347d4d1508bc130436869082029e43eef16722

      SHA256

      84c49340fdb07f3b7fa408ebd98b182505ad792ad85173f5e82860cbe100e2ed

      SHA512

      b2709247428aa3bb24466cf1ed432e623fdab139c81492c097c20033f71b2da2f44dee24b84c61c6d364a3450a6e7bbd1ccebfb6b14de296851a2aa96a2a9571

    • C:\Windows\system\nphnSAx.exe
      MD5

      cdc17484332c86a5f37effd64f0b260d

      SHA1

      8971b6dfa20e22a00faed0de755720b171ebd96a

      SHA256

      ed6ac93ff310e21183f46e62a2c5dd378fd61d7288368b9fd68f1eaed6d207bd

      SHA512

      f6b8d6dad987e539da98cf5696fe1c1cb4f1e99d0c658786098636c92cc45e4857bad81ec02a9e8dfbe248d240a80244df04bab09d0e1ad7f6ce47251f7e98e2

    • C:\Windows\system\qtmwUIQ.exe
      MD5

      a9dcae3fd57cdf463de04d827bc15007

      SHA1

      dc12c1f4c7406c8691db84ddd6894722137478cf

      SHA256

      c9927ad9e1030467cf5a3aeae26cbda0d94d6a03f5ef88da4c3ee37ea8b56e29

      SHA512

      80e64027c3f666fc14ca7845b13072c0ab2fec4d097de907aa93a500671bedde1277d7207f4f0d83e833d8d9ee218be281dda849d37f411477d2c6e0bb252510

    • C:\Windows\system\tbQsdfk.exe
      MD5

      37635991ae99d758d3148cadc19e7861

      SHA1

      abae741d92277ee7f6fa81d26d2fbb05382844ee

      SHA256

      776f100fbde153d7588496df143fd15ef967596d98d14df49a4c88fdf632d6a8

      SHA512

      01c9c31d11bde2ab3de3f7ba57ce35d1bedb3fda5313c563c8cf86aca88fc5ac0a3cef32921991c3acd7b44d7254728ef57fdf730291a791e50a87d2975379a7

    • C:\Windows\system\vlpSjEN.exe
      MD5

      cdeff857e80ab9dfd6fe7b6ef4731fe3

      SHA1

      51f5e2d775728cdf77657081ab87ce4f63c031dd

      SHA256

      9e44851d5d15bf14beac91a3b6d5005974a244f54b71a5ab3be97a6a1c47a355

      SHA512

      1499de8a303ebe9e92f46f286eb333b9f5a454de166d1576badf6fd5c6686c0d4ef096bf339d58c7408cfdb38b72c004135bdb26e0792ff6dbc18664bc2932b5

    • \Windows\system\AbHhiKR.exe
      MD5

      187a2ea9ae324be21477cc7a1aa4dccc

      SHA1

      b5ee0e7d01fa545d134fa89020f663e7f8144e87

      SHA256

      625caeb55dc73c416e8f26751156da4dc7d79691d07c34b1f4b7784565f162ce

      SHA512

      5b4f8b6f6a2cbffaac9ced2073b0d2847306c577d700ac20ec2867b0732dcf4c3c4a9836b58961cfc84d07fb6d60bcb78223ea9d4cc561b11b930203e20d145d

    • \Windows\system\ImKBRkC.exe
      MD5

      363065ef8b7850d0770879046fb5816e

      SHA1

      271fb300c6d0cc8563509e09126f717cede9707c

      SHA256

      d726123bcdd9782069be62698950ac3f519bca1f5a9a56cc9b44b93cb6935059

      SHA512

      fba08b1dcc5b64e8420b64d8632e30fc6172a19d99efff3e574ef1b51a80326222e51796673d13d82b04b02533e3feeab587f5f5364a05ee8e2efe29f635918d

    • \Windows\system\LhjtzVP.exe
      MD5

      ade0d5c7a8d17d089402e9e836ab87e3

      SHA1

      dc33cdbab13b49b11559e29920088a8c57c1b221

      SHA256

      73aec9df4053e38efb8059bf3ff65460547800553684a5f4f7ecf3f44fc62d0e

      SHA512

      8da7f0c742e03d18861cd856a76d313db7f2bcd4e232b02ab81b0390ff56c513c186cf01d160951ea5d644bd3185c586fb9334ee75249d6fe1883fd4dc574b38

    • \Windows\system\LjpjwcZ.exe
      MD5

      a04899d5ddd7c28b3a923f8fcb1b2f01

      SHA1

      be81f5d4e2faccf986273c6ced4475436abf2126

      SHA256

      b3bee7acca42402bdc74c86584daf4f9f0e4a7c97333d7023f6ba0dc41830313

      SHA512

      a6c08b627c870274cb6ddb4607a713df0b034202e2049e2af8076b8e5b141f78a286e55e3f32cd10e0a863e6afc2006a073b8347932b0ba7df5ae42dfa0d52d1

    • \Windows\system\MfINcom.exe
      MD5

      20c2962441a138eb67a696f047e3bf3f

      SHA1

      da55e74d70ac420cc0d3cf3a4362d1f5e079176f

      SHA256

      5618964664d9f9d840c923a64c3954fff8545be46a3a90614b83f24284f71f1b

      SHA512

      70c681eac592610381c5bd7233162d54daf60b5cc378d4e6686419634fd4a565f34a3defe26ae88540cc7332671060eddf02167fbfd7fa914b942ba1af982265

    • \Windows\system\REsPCha.exe
      MD5

      8b7ef8d29d5ed073be75f4d162054317

      SHA1

      bf19718bebbaab939ebb46ea173474046ecca181

      SHA256

      d358f41ade31bb765134bb351c686b8facc4864c56d58bf6a9e016803930a9e4

      SHA512

      44efc1c24d2cf87b3986c6b14e34463f4619686d8b912483233f3e0a3a070378ac5ea8727bc8db85c8584f02f3d066679b7a4b9f6fb268a9b3eec7d1c4814e27

    • \Windows\system\UiSqGfm.exe
      MD5

      40d70670bbd22d32f5d0783dd36c6d71

      SHA1

      0bb77bb204609012abf413c9c09e8b9c31499125

      SHA256

      56945fdfd11e1243eac55089d291b617a0209753a51399cea0415c39d4da76f0

      SHA512

      6a50258b71c2bdfc19c7b2148d8d7070522617fc4b98b227bfc902b58cfe46bc14199c10c3a8e7796b4d8366b544b645dd6004eeb6d75eee01ddf57483ede70b

    • \Windows\system\XeSboTK.exe
      MD5

      e48b997d4654895c788eed6af37e90e3

      SHA1

      7abd6de042610c0e00c0f06b76ec9735ad956da5

      SHA256

      43f0cbeb6dc1b2d64596f75aeededca7bfd2ad26811669a0831be1b98e0d7c15

      SHA512

      9c4bb9d7df3bc49979bb5bd5e634565ab81062f156cfc7392694982f29caaee4d76d8fb081c4ebdb09dcc5f83f352de751f95ad84cc018fe7b78ae989b82a378

    • \Windows\system\exwchps.exe
      MD5

      45e9b3145291075b4533963cc5ac57bf

      SHA1

      4a12625f786388f3ac109b68ddff9b93a9848744

      SHA256

      a7ea0dd49d131a4652257bc659a2d83e5c73f59be37a932e7c265450079abef4

      SHA512

      444c9c34d406d3c6d36fcc2daf50ce11db292213527b70b55fe1f13d5cd37961ed33de24f2c3ad3da5f037c2651028742037c57db6f369346dd2ee2b2220cc63

    • \Windows\system\fCFzfMM.exe
      MD5

      f233b6b09690023f3d3daa8bb28bf9ac

      SHA1

      b645a997322bc2b755ff9da0dcb8218fe35429ef

      SHA256

      fc527dbe288fad0dca7fb46a038ed796106e66760a46b24029baa7aed887ff31

      SHA512

      902b458145b586fafc81c9d29edf5f2cff6649b2111429cf640c60ec7e8952fa0303bb571fa0bcc12c9fea1ab9dcbdbe68674d30fd53ec6a2ddbf864b7a31be5

    • \Windows\system\jEOVZeu.exe
      MD5

      7303e2b55659875aa9b6dfd251086211

      SHA1

      3b347d4d1508bc130436869082029e43eef16722

      SHA256

      84c49340fdb07f3b7fa408ebd98b182505ad792ad85173f5e82860cbe100e2ed

      SHA512

      b2709247428aa3bb24466cf1ed432e623fdab139c81492c097c20033f71b2da2f44dee24b84c61c6d364a3450a6e7bbd1ccebfb6b14de296851a2aa96a2a9571

    • \Windows\system\nphnSAx.exe
      MD5

      cdc17484332c86a5f37effd64f0b260d

      SHA1

      8971b6dfa20e22a00faed0de755720b171ebd96a

      SHA256

      ed6ac93ff310e21183f46e62a2c5dd378fd61d7288368b9fd68f1eaed6d207bd

      SHA512

      f6b8d6dad987e539da98cf5696fe1c1cb4f1e99d0c658786098636c92cc45e4857bad81ec02a9e8dfbe248d240a80244df04bab09d0e1ad7f6ce47251f7e98e2

    • \Windows\system\qtmwUIQ.exe
      MD5

      a9dcae3fd57cdf463de04d827bc15007

      SHA1

      dc12c1f4c7406c8691db84ddd6894722137478cf

      SHA256

      c9927ad9e1030467cf5a3aeae26cbda0d94d6a03f5ef88da4c3ee37ea8b56e29

      SHA512

      80e64027c3f666fc14ca7845b13072c0ab2fec4d097de907aa93a500671bedde1277d7207f4f0d83e833d8d9ee218be281dda849d37f411477d2c6e0bb252510

    • \Windows\system\tbQsdfk.exe
      MD5

      37635991ae99d758d3148cadc19e7861

      SHA1

      abae741d92277ee7f6fa81d26d2fbb05382844ee

      SHA256

      776f100fbde153d7588496df143fd15ef967596d98d14df49a4c88fdf632d6a8

      SHA512

      01c9c31d11bde2ab3de3f7ba57ce35d1bedb3fda5313c563c8cf86aca88fc5ac0a3cef32921991c3acd7b44d7254728ef57fdf730291a791e50a87d2975379a7

    • \Windows\system\vlpSjEN.exe
      MD5

      cdeff857e80ab9dfd6fe7b6ef4731fe3

      SHA1

      51f5e2d775728cdf77657081ab87ce4f63c031dd

      SHA256

      9e44851d5d15bf14beac91a3b6d5005974a244f54b71a5ab3be97a6a1c47a355

      SHA512

      1499de8a303ebe9e92f46f286eb333b9f5a454de166d1576badf6fd5c6686c0d4ef096bf339d58c7408cfdb38b72c004135bdb26e0792ff6dbc18664bc2932b5

    • memory/440-43-0x0000000000000000-mapping.dmp
    • memory/772-40-0x0000000000000000-mapping.dmp
    • memory/788-7-0x0000000000000000-mapping.dmp
    • memory/1020-37-0x0000000000000000-mapping.dmp
    • memory/1500-34-0x0000000000000000-mapping.dmp
    • memory/1584-4-0x0000000000000000-mapping.dmp
    • memory/1652-25-0x0000000000000000-mapping.dmp
    • memory/1716-1-0x0000000000000000-mapping.dmp
    • memory/1736-19-0x0000000000000000-mapping.dmp
    • memory/1784-16-0x0000000000000000-mapping.dmp
    • memory/1796-22-0x0000000000000000-mapping.dmp
    • memory/1892-28-0x0000000000000000-mapping.dmp
    • memory/1964-13-0x0000000000000000-mapping.dmp
    • memory/1968-10-0x0000000000000000-mapping.dmp
    • memory/1996-31-0x0000000000000000-mapping.dmp