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Analysis

  • max time kernel
    145s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/12/2023, 10:59

General

  • Target

    0ebc9899c5607a8395ed7e5c442ef38e.exe

  • Size

    5.5MB

  • MD5

    0ebc9899c5607a8395ed7e5c442ef38e

  • SHA1

    3c6ca3c4e0163010ae3f38ec49a1a5edeb39aecb

  • SHA256

    502fbce583f91145b61ff34273a50b2225e477898a142d67a717c3eb8ae906bf

  • SHA512

    6dbaf70dfc3c6af6a556e27fa5ef9b12a7111592ea8db5da9d93a1887b55216fab339e3301aff8ef51de953ac006fe7552ccfd7f584ae8c024dcf58c7a8eaa16

  • SSDEEP

    6144:582p4pFHfzMepymgWPnviP6Koa0nArn20l96tCF2eKNBDRlC8HQQDhy5OwbYBflC:hp4pNfz3ymJnJ8QCFkxCaQTOlHfU86t

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Renames multiple (3469) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops startup file 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops autorun.inf file 1 TTPs 3 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0ebc9899c5607a8395ed7e5c442ef38e.exe
    "C:\Users\Admin\AppData\Local\Temp\0ebc9899c5607a8395ed7e5c442ef38e.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops startup file
    • Enumerates connected drives
    • Drops autorun.inf file
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:736
    • C:\Windows\SysWOW64\HelpMe.exe
      C:\Windows\system32\HelpMe.exe
      2⤵
      • Modifies WinLogon for persistence
      • Drops startup file
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops autorun.inf file
      • Drops file in System32 directory
      PID:3412

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\$Recycle.Bin\S-1-5-21-768304381-2824894965-3840216961-1000\desktop.ini.exe

    Filesize

    1.8MB

    MD5

    8e3a6e1006ed2e96038a14105f60c2cc

    SHA1

    08209dadd06b074a088f20078326be51f34bd870

    SHA256

    435e65cc6199d315199bfcdfebfd71c58b6d6c811390cf353595a6b6c15de33b

    SHA512

    3c209257480152f8abce1b1dd4e778911f9370a310fba25a14f23153c2d023f09cfbf6c701f833d2ed020e01b7496d5faf2ff2964dfd215f1ef4b889588ed864

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

    Filesize

    1KB

    MD5

    9dd4e4f4717767c3ad26c1130bc8491d

    SHA1

    2ba45c8a478dee7fe7548d7cde23edb086c340c8

    SHA256

    3efd3a2b42e099918686be4d1e6896b8039e7eb4391d75f6c017a9bf6161200a

    SHA512

    7004243bb1714ae91a636b7b764d6702a3d797e3acf39ff8f5a59dd41b7c47d700251f8a133fd18bbfa174f97c4cae08a8b3e32b4c79a6dca2fc5340f215730a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

    Filesize

    1019B

    MD5

    1c61103ff16e4c3e2fb20135e8f8a80d

    SHA1

    61e6b9a7b83d050dc47599570379cda582d7be47

    SHA256

    3e1110aa640a33c417a0021ddd4f6eb9c7ee2de8f40da78eb53d608b566bd3a9

    SHA512

    08c867b21e02a8d47b7aed6585aea40125c8a5c51048e481403ccc62be27021eb0754406c731a5262cc719fc1f110c3a21b7fd9ebe388151c08b4eb012f062d0

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

    Filesize

    1KB

    MD5

    6ef5cbaacfec54f9a0cb29232116dbfe

    SHA1

    c143240605b38a7712aec323dbda0b7e352dcc9f

    SHA256

    11592b2322fef0c354756dfb5a246acdaae77efd08f53dfa1ec81a351e1d8226

    SHA512

    8ed010f2a685f952fa9bbbcdc7ed75897c0059a4e56275fd30c109216ebbe30bc45d3a805a9524a702ed5ae6783c3bc76d0e0cbdc21d9da6be6d62074f1b2cff

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

    Filesize

    1019B

    MD5

    fd73ac4a192b5422fc02fec52d3e607a

    SHA1

    528cd2b116789c2cf402a32a052bf35ae9738bcc

    SHA256

    fbd3230d991809a578b11a96291bee18ca397537a844f36ecf8c0544488b3780

    SHA512

    b512a8c014eced109bd10f15f32d874d0430a62527f31607dea6f84dec9b18c5c392b266cc0060d4060ebb9526724055ea99fd9edd3bc61b1a74346081488f4a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

    Filesize

    1KB

    MD5

    5b4783c0006bec5e239974447054d2a1

    SHA1

    279386021e9a7b1cfb188e5fe531f818c496081f

    SHA256

    29a27c4e6ce9a2d1cd74f46b799cad5f9250f6c6646050db3ee274b9f95fb31f

    SHA512

    7c975506786dd118ea84d729c106d77d63733ee9c256165e0d3a2b2f76b02f24661497e4610d7175c5ff01d6a40f9b5715e25b190bf910bfb92cff72e04687f9

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

    Filesize

    1019B

    MD5

    d02d1bcab8ed89245d08a63742c0b54f

    SHA1

    22c1ee762bf01302a96bedba5b312ea6f486d023

    SHA256

    94647a45001a4ded158628060642109b7d581921e9b7f2dd7cc8326689b5c640

    SHA512

    22cd5fa5792fe94a3d8524c7562de574b5e4516a61e6cf92fc93838f1a4754cb97861f8163f3e3f192ae6df99cd9d71fff69c7ebdbad6418b033f9f27872038a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

    Filesize

    1KB

    MD5

    469968b9539fdeecb2d486b700d1bb2f

    SHA1

    1c0a758868dbf6694a1a91b0783e023fa5a014fc

    SHA256

    472082077efee74e76dd0f7ecf86080ca61fda5335b24acf767aa858b459c3d9

    SHA512

    bdc0dbeebf350e82c6192686c9b357dc2aa1d39ef4260951c10fbdee630799028f9a431e467c35d8e8246b1ea11134f7da5e152e0acd72e62a2540bf97a30962

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

    Filesize

    1019B

    MD5

    98b61dc6dfa5c8e137a287660b0f0127

    SHA1

    600a889896a4588891b009d210e6180fd5f9ffe9

    SHA256

    c287937c3bdbe90ce6263be1f4be1d1d993aa458733774feccacae7af28e0871

    SHA512

    59e444a2fd03a2e4f43ac3034f5c02a8177d56790b4c9d7186389ec9ed173237891afa5ec6a6af8dbbdf4ab3b34c3fa23d876f9410f26e123b760da513d25237

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

    Filesize

    1KB

    MD5

    7cbf71fafe46cde8531e2c057cbed220

    SHA1

    bd6672a8a2b4883f0b44ee663af30b4bdbdca0ba

    SHA256

    fff7753fd223ad8503f0d4554d62bf1d0474ac9d73889bc0e220a2a5aaca99d0

    SHA512

    0d3cc523093db9467809a1defc1ca538abdca9f4ced3e75be4f469ade7999f0dbad0827057a5ced473ccc7e5bea8df24f552a10fece162277165655b4c94530e

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

    Filesize

    1019B

    MD5

    5e07bab6f9cef414bb9a254b6e9276a1

    SHA1

    3aca3ab1ba8edfa70dd0639c6d031d7b63df2212

    SHA256

    7c0e021cf93696668d263587b4c94c1ea0c3640a3ed6bc97ab2e931827827a1a

    SHA512

    6614300fd3a3a3783ff408f3de1a38f79cb618af3a3c9d34437b2f96e8cb9f7ac8c9ce8f1a51130e01714dd35e1fb845e7d34cc8f617468efbf601c948e065aa

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

    Filesize

    1019B

    MD5

    73d222a2594e8aab47e86548b4407441

    SHA1

    67ca71484ae49d4e8a851d91bb2cbfc623c5d90f

    SHA256

    a256da22639d9e1665821be743c7bc18e8d39317bebad0f83e9fcf2708ab6ed4

    SHA512

    cd11643a217d9fd4251a4d4e516d33810bfa8a7d4ac7d3ade7a407ab83e7cca53404f71b049337ac29b99904cb7d256b172e04938b705b65d07396ae337691e9

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

    Filesize

    1KB

    MD5

    74b9a5a5b1c033820c81be857f5504a0

    SHA1

    89495431812118e614775d9109b75723cd89a432

    SHA256

    6849e3a387df34f55bab671b68a987c4febaada6bfbc94e371d992cf51062299

    SHA512

    4458a03693ff74032bfc1dfccf6c8d6a822a81139e1e480ca7cac38fb0ba0223fadfd851cace36b79822845f4293e4f94925eb14e5039cb0b092d77ab2784d80

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

    Filesize

    1019B

    MD5

    a0781108e52e924a01f4ff9acb9f163e

    SHA1

    c438220d47235d127e14f8d5cfcad4fbd7a2dcdd

    SHA256

    c9aaa58a8e762c3fad9ac72b153d877d8eca5c4b28fe489bbba2230613622cdf

    SHA512

    3c1310dcdfe8e0c4144558df953f39e77b3bed39fb74578b93f588fd540f1d5fa249b21a919cc4054168de09dc4d98f9e71e93a5d216ded5113f93c3fc729762

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

    Filesize

    1KB

    MD5

    1a647719d2fef1c2cfd116d8da04daa1

    SHA1

    c3021623c337162e713285b193a70ed556ddd7c6

    SHA256

    b31b49ef43039b5359534091bcc500c71babee1606c2cd9ceab08934c9dd2605

    SHA512

    829a51254a4947c28653ce84cb8392dfa25be44b1ac259c911051dffea56eb04e7a59269b3fa8cab52d4938d98357d55e2b6011b233fc93b86c1bd586c21fd8f

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

    Filesize

    1019B

    MD5

    d8cc0bea57a7bb25e034795cd1318403

    SHA1

    6fcdfa6e4d36a308f58bc13ba27d31854ec9915c

    SHA256

    fb2f99c6269c01e8d79367864a4da92e78c0eb29fa7338e383dd4e4eba8a9449

    SHA512

    723e9a2c411f48c102fd0cd8f72a0029de2604853f08c3ddfe93692d9cf871dec114820535afbb3b37b8b7ddd20c11d214e160c975b69780df5c446d302b26f3

  • C:\Windows\SysWOW64\HelpMe.exe

    Filesize

    5.5MB

    MD5

    5168b8dc992e82c362d5abc7ae93b63a

    SHA1

    ab13c76e49b0fffa9b11a679aa62e45e708a34aa

    SHA256

    5164bea45c53486c10658bc4d7a8e29c9f2db2a7d9f52261153147fc9a2dfa18

    SHA512

    bd01bdc1e4e83740e275664bce438d1493e4c852ab25cb0a99e3c399e12bc7146c549c81def59bc1fd0ab78e9ac38aebb31424efc55a8c470f1b4873389ca630

  • F:\$RECYCLE.BIN\S-1-5-21-768304381-2824894965-3840216961-1000\desktop.ini.exe

    Filesize

    2.5MB

    MD5

    fef0281786437486fdd9f11601392c5f

    SHA1

    5d0fa148a101aadb45ccd61c6bf7e2c34e27b4fd

    SHA256

    59265a3596dc9f3272e6838d5cec6b73b4a6b4e49808735dbb88561b5223203b

    SHA512

    acc916d4d94027aefb3bbcea669f200a5a2fe0099b544297e7e6d1d845f91ff3b5f6326a24177e394e4161c8d1873e658eb38d0fe7db71c6b4997bfdc0d095ff

  • F:\AUTORUN.INF

    Filesize

    145B

    MD5

    ca13857b2fd3895a39f09d9dde3cca97

    SHA1

    8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

    SHA256

    cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

    SHA512

    55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

  • F:\AutoRun.exe

    Filesize

    1.5MB

    MD5

    8b65608b0e26adb646527d99194d5102

    SHA1

    2be61ca013c21f80c412c33d711cec02f2a16356

    SHA256

    96416dd1a806f11fd0daf3f15352c80ac50ff696abead6b1dcc1ed35f952452d

    SHA512

    21750b55df6fce0db8861cd81a1980023f589f7e72fb9caa47d5c75a72ceb39995e0983ff8f6e449708b4c142205832f7296bb43edf28fa007454118f20a8644

  • memory/736-0-0x0000000002320000-0x0000000002321000-memory.dmp

    Filesize

    4KB

  • memory/736-3129-0x0000000002320000-0x0000000002321000-memory.dmp

    Filesize

    4KB

  • memory/3412-5-0x00000000020E0000-0x00000000020E1000-memory.dmp

    Filesize

    4KB