Analysis

  • max time kernel
    190s
  • max time network
    210s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 17:10

General

  • Target

    45942352c3d9ae91ed0d3a1e6f326eb6ef31be93b31f5cdc327cb2f21e7ec035.exe

  • Size

    1.4MB

  • MD5

    03476ef4e964276abc2eeae64fbe1f42

  • SHA1

    2edae4c944d4e6b01e4528c666be3b84498f062c

  • SHA256

    45942352c3d9ae91ed0d3a1e6f326eb6ef31be93b31f5cdc327cb2f21e7ec035

  • SHA512

    42f14ac567c73ddcf4875fb9c03093ab31d60c5c1c6ce466189c9b8847f0e4c75cf51cbe9cfe775003e5beee08708669f0aec4b34e5698e89acf8ffe742565c3

  • 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 5 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 63 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\45942352c3d9ae91ed0d3a1e6f326eb6ef31be93b31f5cdc327cb2f21e7ec035.exe
    "C:\Users\Admin\AppData\Local\Temp\45942352c3d9ae91ed0d3a1e6f326eb6ef31be93b31f5cdc327cb2f21e7ec035.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1768
    • 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:1124
      • 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:1516
  • 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:2016
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2016 CREDAT:275457 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:1328

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\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\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    Filesize

    488B

    MD5

    996258a7b9d62d4b4a2ff2b2b43aee7b

    SHA1

    c3c3c7d907e14f84454e8ed9ecb33f583e8243de

    SHA256

    eabf0806ad938f0e0628a09eba815cf3503d98a1133e981438d9e45e82bd1c19

    SHA512

    71c26d68361e0b18813f5528fc1ab0e2feeb18a48c5799929a9e8a4bb019054277020f3d7e276cc943587306478e39424df3f00b2fffe5f7237c4b3cba53ace0

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

    Filesize

    342B

    MD5

    accf5618b7ad7ba46adc661a464cf11b

    SHA1

    80e66f6e12e6a2b819ffdf1968c695b554e78a0e

    SHA256

    98fd94da20cdb6f534ccd0059d227adb6585abc5221c4e485a5d612416f3bdcf

    SHA512

    75ea2812e088a7c4b45ed2f841bcaecc05ba14f299525b41c26511e793bce7287c8b0fd3f12422acfdc69db75f3a74c436874268c23f1dc9827cee71185b1bcc

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

    Filesize

    342B

    MD5

    9cf0506aabf06f5d7b84c2412aaa5c53

    SHA1

    192a588b8b6e641b56b63b8aeb6da68499e4fd94

    SHA256

    591eeec2f94d3cd50ac6eea2051e1ff12e05087d39f4e462ff576f028cbc37d8

    SHA512

    a72fe63ac54f4d3214fc5dd43617a8fabc8b759a1c5e5925b4aebb799d3c86b66e225e6632c2335f778d87335526fd4bc65122c9ffc6a41cbe6f83f15a976477

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

    Filesize

    482B

    MD5

    b7a970ebf38f66a18a24ffb388070700

    SHA1

    aea076332d89fa7e460c4c22ee5024ef7750b889

    SHA256

    0330b78c2b1fe6818673d62dcbf1456125a4bc56615b0523b328f938f955eb1b

    SHA512

    08e72edacbfaf528b8a653a19053cb95b4633ffebdf7187e7261e77bc82278f8819204d9499ef6c636a0ceafdd0de26b1b7db4cfcad1de6f5ea93b39094f9280

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

    Filesize

    480B

    MD5

    533003bfd3a29e68946a7fd45c67ccd2

    SHA1

    1597fe290e7d6dd92b5a324e16ac87a53d5a4974

    SHA256

    139317862ead891e7134d14be9b5ec0e6c9024c32c5da685023eaec98e16d121

    SHA512

    5bc20b3d25923c8953859ccaba6e85a4a34d0800574c5d2da4b2431a5ea48beb9135a0eafb7f613fdd418a1d49ec7aa79a42ede7de6041e4e681c9fc614db52f

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\29RI4PGB.txt

    Filesize

    118B

    MD5

    7edf4477d9eeed2b071b8ddf896ff4bc

    SHA1

    7bb57d1eae995405edf8d60eaabfb58a49efe62b

    SHA256

    e6c9b3f636ce407637d05d08807fdf17d8d7d2d9f1af65dfede145fe326430d4

    SHA512

    c92c82c545667ab72c52d7980db16e1e19762438dc20fec1ab81da4e562c85bd8dbf964f4304bd98cb9371328d03f57a41cfd116bd491e2b11ca0c759f08cdbd

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\A9XOMO4Z.txt

    Filesize

    608B

    MD5

    9c18134697ee180988a945cf2f551a34

    SHA1

    d1ced8012af1546d8201f55bb48ab243c3d3ac8c

    SHA256

    f98fdc8e637f834b092eac94e8438d9ffc5b3cb04409ef4055ab007e3d36aca8

    SHA512

    e503161a325a6ea474584208d1a6a67c7d9275bb396a4e77589ec659d68ea64af027e7283c6411674971ea4bdebc03eb41c512f8210d5cbb7500bac010a8535a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\CJDUE4CF.txt

    Filesize

    97B

    MD5

    ce2b9331637a0215184e3b459f2eb972

    SHA1

    a93148a51c73e0076b977065cd589b1afb8667a4

    SHA256

    ba8e7e91cf113dba8fcdab00d3d7c6ccc27aa982f700be892497fb6d79ce373c

    SHA512

    64775c1732917a17eae05ae7415d3366a15164aef8d048bb0c98c9607fbf805b5e7dc092e9920e1a70fc9b7ccb811bec18fd37738180382d368a7a8ae58711a9

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

    Filesize

    1.4MB

    MD5

    03476ef4e964276abc2eeae64fbe1f42

    SHA1

    2edae4c944d4e6b01e4528c666be3b84498f062c

    SHA256

    45942352c3d9ae91ed0d3a1e6f326eb6ef31be93b31f5cdc327cb2f21e7ec035

    SHA512

    42f14ac567c73ddcf4875fb9c03093ab31d60c5c1c6ce466189c9b8847f0e4c75cf51cbe9cfe775003e5beee08708669f0aec4b34e5698e89acf8ffe742565c3

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

    Filesize

    1.4MB

    MD5

    03476ef4e964276abc2eeae64fbe1f42

    SHA1

    2edae4c944d4e6b01e4528c666be3b84498f062c

    SHA256

    45942352c3d9ae91ed0d3a1e6f326eb6ef31be93b31f5cdc327cb2f21e7ec035

    SHA512

    42f14ac567c73ddcf4875fb9c03093ab31d60c5c1c6ce466189c9b8847f0e4c75cf51cbe9cfe775003e5beee08708669f0aec4b34e5698e89acf8ffe742565c3

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

    Filesize

    1.4MB

    MD5

    03476ef4e964276abc2eeae64fbe1f42

    SHA1

    2edae4c944d4e6b01e4528c666be3b84498f062c

    SHA256

    45942352c3d9ae91ed0d3a1e6f326eb6ef31be93b31f5cdc327cb2f21e7ec035

    SHA512

    42f14ac567c73ddcf4875fb9c03093ab31d60c5c1c6ce466189c9b8847f0e4c75cf51cbe9cfe775003e5beee08708669f0aec4b34e5698e89acf8ffe742565c3

  • \Users\Admin\E696D64614\winlogon.exe

    Filesize

    1.4MB

    MD5

    03476ef4e964276abc2eeae64fbe1f42

    SHA1

    2edae4c944d4e6b01e4528c666be3b84498f062c

    SHA256

    45942352c3d9ae91ed0d3a1e6f326eb6ef31be93b31f5cdc327cb2f21e7ec035

    SHA512

    42f14ac567c73ddcf4875fb9c03093ab31d60c5c1c6ce466189c9b8847f0e4c75cf51cbe9cfe775003e5beee08708669f0aec4b34e5698e89acf8ffe742565c3

  • \Users\Admin\E696D64614\winlogon.exe

    Filesize

    1.4MB

    MD5

    03476ef4e964276abc2eeae64fbe1f42

    SHA1

    2edae4c944d4e6b01e4528c666be3b84498f062c

    SHA256

    45942352c3d9ae91ed0d3a1e6f326eb6ef31be93b31f5cdc327cb2f21e7ec035

    SHA512

    42f14ac567c73ddcf4875fb9c03093ab31d60c5c1c6ce466189c9b8847f0e4c75cf51cbe9cfe775003e5beee08708669f0aec4b34e5698e89acf8ffe742565c3

  • memory/1124-63-0x0000000000400000-0x0000000000446000-memory.dmp

    Filesize

    280KB

  • memory/1124-85-0x0000000000400000-0x0000000000446000-memory.dmp

    Filesize

    280KB

  • memory/1124-59-0x0000000000000000-mapping.dmp

  • memory/1516-72-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/1516-71-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/1516-68-0x000000000043BE60-mapping.dmp

  • memory/1516-67-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/1516-84-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/1516-86-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/1768-56-0x00000000754F1000-0x00000000754F3000-memory.dmp

    Filesize

    8KB

  • memory/1768-61-0x0000000000400000-0x0000000000446000-memory.dmp

    Filesize

    280KB