Analysis

  • max time kernel
    147s
  • max time network
    174s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 18:56

General

  • Target

    eb550e46d5e2edb94eec12497a644012de9114e102d64192facab8709b696897.exe

  • Size

    1.3MB

  • MD5

    2e799370d6508d56074d6b313526fe27

  • SHA1

    87593d6b340105f1cdfb580d52b943345b82c8b3

  • SHA256

    eb550e46d5e2edb94eec12497a644012de9114e102d64192facab8709b696897

  • SHA512

    2dda7088754666d353f7618a29587f6f5da34119477b207cdcba940d9c4c4cb7c649584a4d13a8793c511c52aa74ba79f4168f69b43cc24cf20d3faa6975c580

  • SSDEEP

    1536:kls8qrbQYURPAYmYf1F92m214L5d5TQTH9F+UTQ2nxvQYKV6yZPcAnouy8:vwPAq1F92Z4L5ETH9EPo4YK1pcoout

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 14 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • UAC bypass 3 TTPs 3 IoCs
  • Windows security bypass 2 TTPs 4 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Sets file execution options in registry 2 TTPs 64 IoCs
  • UPX packed file 4 IoCs

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

  • Drops startup file 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 15 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Control Panel 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 64 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Modifies registry class 24 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • System policy modification 1 TTPs 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eb550e46d5e2edb94eec12497a644012de9114e102d64192facab8709b696897.exe
    "C:\Users\Admin\AppData\Local\Temp\eb550e46d5e2edb94eec12497a644012de9114e102d64192facab8709b696897.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1520
    • C:\Users\Admin\E696D64614\winlogon.exe
      "C:\Users\Admin\E696D64614\winlogon.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Modifies system certificate store
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1508
      • C:\Users\Admin\E696D64614\winlogon.exe
        "C:\Users\Admin\E696D64614\winlogon.exe"
        3⤵
        • Modifies firewall policy service
        • Modifies security service
        • Modifies visibility of file extensions in Explorer
        • Modifies visiblity of hidden/system files in Explorer
        • UAC bypass
        • Windows security bypass
        • Disables RegEdit via registry modification
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Sets file execution options in registry
        • Drops startup file
        • Windows security modification
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Modifies Control Panel
        • Modifies Internet Explorer settings
        • Modifies Internet Explorer start page
        • Modifies registry class
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • System policy modification
        PID:1880
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1888
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1888 CREDAT:275457 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:1612

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    Filesize

    2KB

    MD5

    38a9ee40b61155284982e2fa94ecabb8

    SHA1

    48847436aebb7737c0ffb7a1c7890b97277372ec

    SHA256

    39dfe13c61cf08b31abb081fb69a84fd106d9dce588d98bcda717b361403f3a5

    SHA512

    1ba66cc021295bd0d08b5882b41e48b68c5091de41d6e451f48c291ef4e837e8783ac36af6cc08fc4efe382cb8563358a48939a5902d5ad6ff69bbd9bc71a553

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    61KB

    MD5

    3dcf580a93972319e82cafbc047d34d5

    SHA1

    8528d2a1363e5de77dc3b1142850e51ead0f4b6b

    SHA256

    40810e31f1b69075c727e6d557f9614d5880112895ff6f4df1767e87ae5640d1

    SHA512

    98384be7218340f95dae88d1cb865f23a0b4e12855beb6e74a3752274c9b4c601e493864db777bca677a370d0a9dbffd68d94898a82014537f3a801cce839c42

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

    Filesize

    1KB

    MD5

    23c896e3fc14b0352780bf8710ebd27a

    SHA1

    f80cbc14c2447f02c067cc2c126e105b552d472b

    SHA256

    df2d1a8ad65c48cb714d0157f4e14c374e45493c7e2ed1a03911f558055108c0

    SHA512

    230372de75058a3b6456b1f44efc95695a85d7317fc6e2575a8772af900a08e059aa8a5397a37e1231ffa6bb2e8a2684bc2e6a35cba500818a417387c915908e

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C67047FE238D580B731A13BEA5F7481F

    Filesize

    472B

    MD5

    176c5bdeeb799ec212e8b21126aa58d5

    SHA1

    02c76719828821643ec84cfe61ecb4499838021c

    SHA256

    eaa1c4ffce046f2951b93258d2c8c396da596a86c40cb3954ea8ceb4b13aa842

    SHA512

    a8fcd3787e674c37c70bce3a3cb0cdf832c03483d01a29887183ca8345d632f0bb75509586b07218e9c4d06c5d1a413dc26374270789b147446d54cf0303f3ed

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    1KB

    MD5

    a266bb7dcc38a562631361bbf61dd11b

    SHA1

    3b1efd3a66ea28b16697394703a72ca340a05bd5

    SHA256

    df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

    SHA512

    0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    Filesize

    488B

    MD5

    64718e5d5a3b7306f0d8f76f8d090826

    SHA1

    2dda7bb5836cb3e8a8db9caf123ef7ac29d84fca

    SHA256

    e27d6d46885b6023e9022040615c10933ee9008406219b6a5468ea33094326cb

    SHA512

    d2928213ff874ce90bdde613436bf41ccf761f951180116f14d1864283289562384b277f1aa9be10c1c24e49d75788c052f7fac0e33a2c00d85c6fefe2f86b4b

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    11cc728693e9fc1d3c9008e0ebdc769d

    SHA1

    d6791bd28df1fdf51eb8519d5a4b4226ad6ab184

    SHA256

    d90f37e17c9d30b31b0405bdbef2fb09733199b1312b4991348db09b22b79feb

    SHA512

    5feb8719232de5aaba5b6edc2ec9e2490d5d8453d9baa455d216f9d28c0490ee17b1e42b066bfe34da91883de5907598b982f336f6a7592c8f963811cc017978

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    ac8bd631387f98632078127cf3ddaba4

    SHA1

    ef791a3d3f9e0185650b9f94462550ed6a69d678

    SHA256

    5a240849f3fdc2aa8c097022a68e7ff84ca849bb97c3ee357e34a7f18c08b060

    SHA512

    b1fa6e12fc536af0ee13346af1e2a9047e77077cb9d233fe1a6d3ebe0137607604710dfce8f0db4069bbb2d146aff03c0a1c4b83177289ef46bdf47b4b83ec01

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    24e8acd364a0e45c7e98d568ad969f2c

    SHA1

    ddbfd0d17ed97c65ffd6f369f14ea28eba9b34aa

    SHA256

    b07497c84aa815ba588e117daf47dc10d50bdf2bdbb65528ff9883876b0b6f1d

    SHA512

    47a7f18ec8c57d95117f733a42e55e87ee1fbbd6d76b683250b3d692bff8d2149bf4a7148887477a4d282328ce0bc33d39ee1b971fceec0dcd22bbd242c26bc8

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

    Filesize

    482B

    MD5

    4194e79948eac9b1ae87dc8f44691d74

    SHA1

    787269ba54b4fc66639ddf90556e189f78d44d56

    SHA256

    0ed8c9e3064716dd7eeb37a5af4f40d0eb44594823d0f8306190fa4c706fbe4e

    SHA512

    b302f07ce2f20f468048251eba908c52b6a3b95a1e435320b3f54cdb686eb31e223ee99f3735c61f6dfcdd3b92f33900a87dee36029bda35f5591515e62c4287

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C67047FE238D580B731A13BEA5F7481F

    Filesize

    480B

    MD5

    cbb5e034689bdcda4e01e9dcfd784022

    SHA1

    4956c8b505a6e4d4059d0a8e24ca83e4fd41d7d9

    SHA256

    aba2bae67af04a016d0c1e99e6a8b68986b374e218f98ff0534aa395d7d8c50e

    SHA512

    454a386b6aab645624a37780eb02cd8909ad0cbe3a9f8444d32c8d90f1347c7dde465557d232152885ed942d39ffc4cd6318c44af8b7fd41b184f2648fc5aacd

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    242B

    MD5

    10da0c4f14b203b7aed145e9581f0724

    SHA1

    558ffdc0e97d2ac1c6b9e5545852b281dbed5d69

    SHA256

    ce7c53b2d32245b63c5d9fdb2b82eba166fb58596b8724bef13b152078008cb8

    SHA512

    391b3536ecf48d5c03e6b223376909f75e4437bffcfb13708b8cfaefa6ddbf0ff573ad4719f6c35906011fb5a792968c6e45473d6730ab43de69bc0a737b8fb1

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\9XY1TICL.txt

    Filesize

    118B

    MD5

    da703078569d4af875ee4624e7e734f6

    SHA1

    e590eca6db31cff50bbca29dd4c1f5cdad4da5bd

    SHA256

    2898a547b8b7467a85cdd976ad5726ddee0a0108464c3ed2a576d85e602c55ac

    SHA512

    acd338a7b33251300432f25c532e64e32c4523d0fcec7ddb3615fb458d64af1d1640593f3f342cf12d91b7dd92ea6cf25a3cc10317354c22322b024a50c4f4de

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\MKVWKLCW.txt

    Filesize

    97B

    MD5

    fb5df9224303d9e85ae366e58d4b39de

    SHA1

    ed61c95bb02b5c8697dd8145c7599617fc93f5e4

    SHA256

    10cae1f47c2abb881a63d4b22b12f78b6834c5a9c107a4e1536ddc0058e39747

    SHA512

    337f758fe9302d7da95fc676e6a21896c0fc1d502b5cfb7560c9e1d136dd418dd8859ae2184c9f7f5b9251b8a434b519f491ddb5b5657d3eb859e1fb11dbd210

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\Z2ZT3923.txt

    Filesize

    603B

    MD5

    9091792007ae0626413d3aba74f0a9fa

    SHA1

    c3a1203255a35940a9e136237e6d6ca46cae2bb3

    SHA256

    080c580f08fceff999cdec865d823274c7e71ea0d07f263c416f95828cd5b9ea

    SHA512

    e02a7d1bfbd271b4ba6f3d27a95b63c60675795937d68172f2fd54748bf1e8f9ce3802f375d72e242fa7cdea45629400dd2f050eb780a3d597f5813f57ee2a68

  • C:\Users\Admin\E696D64614\winlogon.exe

    Filesize

    1.3MB

    MD5

    2e799370d6508d56074d6b313526fe27

    SHA1

    87593d6b340105f1cdfb580d52b943345b82c8b3

    SHA256

    eb550e46d5e2edb94eec12497a644012de9114e102d64192facab8709b696897

    SHA512

    2dda7088754666d353f7618a29587f6f5da34119477b207cdcba940d9c4c4cb7c649584a4d13a8793c511c52aa74ba79f4168f69b43cc24cf20d3faa6975c580

  • C:\Users\Admin\E696D64614\winlogon.exe

    Filesize

    1.3MB

    MD5

    2e799370d6508d56074d6b313526fe27

    SHA1

    87593d6b340105f1cdfb580d52b943345b82c8b3

    SHA256

    eb550e46d5e2edb94eec12497a644012de9114e102d64192facab8709b696897

    SHA512

    2dda7088754666d353f7618a29587f6f5da34119477b207cdcba940d9c4c4cb7c649584a4d13a8793c511c52aa74ba79f4168f69b43cc24cf20d3faa6975c580

  • C:\Users\Admin\E696D64614\winlogon.exe

    Filesize

    1.3MB

    MD5

    2e799370d6508d56074d6b313526fe27

    SHA1

    87593d6b340105f1cdfb580d52b943345b82c8b3

    SHA256

    eb550e46d5e2edb94eec12497a644012de9114e102d64192facab8709b696897

    SHA512

    2dda7088754666d353f7618a29587f6f5da34119477b207cdcba940d9c4c4cb7c649584a4d13a8793c511c52aa74ba79f4168f69b43cc24cf20d3faa6975c580

  • \Users\Admin\E696D64614\winlogon.exe

    Filesize

    1.3MB

    MD5

    2e799370d6508d56074d6b313526fe27

    SHA1

    87593d6b340105f1cdfb580d52b943345b82c8b3

    SHA256

    eb550e46d5e2edb94eec12497a644012de9114e102d64192facab8709b696897

    SHA512

    2dda7088754666d353f7618a29587f6f5da34119477b207cdcba940d9c4c4cb7c649584a4d13a8793c511c52aa74ba79f4168f69b43cc24cf20d3faa6975c580

  • \Users\Admin\E696D64614\winlogon.exe

    Filesize

    1.3MB

    MD5

    2e799370d6508d56074d6b313526fe27

    SHA1

    87593d6b340105f1cdfb580d52b943345b82c8b3

    SHA256

    eb550e46d5e2edb94eec12497a644012de9114e102d64192facab8709b696897

    SHA512

    2dda7088754666d353f7618a29587f6f5da34119477b207cdcba940d9c4c4cb7c649584a4d13a8793c511c52aa74ba79f4168f69b43cc24cf20d3faa6975c580

  • memory/1508-65-0x0000000000400000-0x0000000000446000-memory.dmp

    Filesize

    280KB

  • memory/1508-77-0x0000000000400000-0x0000000000446000-memory.dmp

    Filesize

    280KB

  • memory/1508-60-0x0000000000000000-mapping.dmp

  • memory/1520-57-0x0000000000400000-0x0000000000446000-memory.dmp

    Filesize

    280KB

  • memory/1520-56-0x0000000075CF1000-0x0000000075CF3000-memory.dmp

    Filesize

    8KB

  • memory/1880-68-0x000000000043BE60-mapping.dmp

  • memory/1880-86-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/1880-67-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/1880-71-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/1880-72-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB