Analysis

  • max time kernel
    148s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    12-03-2024 21:38

General

  • Target

    d6b7b27e13700aaa7f108bf9e76473717a7a1665198e9aafcc2d2227ca11bba9.exe

  • Size

    131KB

  • MD5

    2cc630e080bb8de5faf9f5ae87f43f8b

  • SHA1

    5a385b8b4b88b6eb93b771b7fbbe190789ef396a

  • SHA256

    d6b7b27e13700aaa7f108bf9e76473717a7a1665198e9aafcc2d2227ca11bba9

  • SHA512

    901939718692e20a969887e64db581d6fed62c99026709c672edb75ebfa35ce02fa68308d70d463afbcc42a46e52ea9f7bc5ed93e5dbf3772d221064d88e11d7

  • SSDEEP

    3072:j06qm9E8obCg2QdgYdrp23suV+eGg21Yg:j06qHnOg3df9eAJ

Malware Config

Signatures

  • Ryuk

    Ransomware distributed via existing botnets, often Trickbot or Emotet.

  • Renames multiple (82) files with added filename extension

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

  • Modifies file permissions 1 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d6b7b27e13700aaa7f108bf9e76473717a7a1665198e9aafcc2d2227ca11bba9.exe
    "C:\Users\Admin\AppData\Local\Temp\d6b7b27e13700aaa7f108bf9e76473717a7a1665198e9aafcc2d2227ca11bba9.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:2180
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\*" /grant Everyone:F /T /C /Q
      2⤵
      • Modifies file permissions
      PID:2452
    • C:\Windows\SysWOW64\icacls.exe
      icacls "D:\*" /grant Everyone:F /T /C /Q
      2⤵
      • Modifies file permissions
      PID:2460
    • C:\Windows\SysWOW64\icacls.exe
      icacls "F:\*" /grant Everyone:F /T /C /Q
      2⤵
      • Modifies file permissions
      PID:2836

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab

    Filesize

    1.7MB

    MD5

    601260f1af0d26bc4c46c2b649bc1daf

    SHA1

    7a99e20d49c51639c622aa55bf27b36900a0ef97

    SHA256

    d73e3fb225c7b67304d6cd112d12c08127fc8ab5e1159c29f29fbcbbcf2f4d8c

    SHA512

    d37d683f1ecbd03e9b5e15b9ba6575e3be046a5d8ab97649074869b07cf504a537b023062f814bdca32636d0af5272bf9f31744b3cdc52743195a9d083f89549

  • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Office64WW.msi.RYK

    Filesize

    1.8MB

    MD5

    382bbc6923cf62c82df03a61e37864dc

    SHA1

    339c02176bfd4d24ec6a9759f604644201ac4f22

    SHA256

    84a6ba670a9a7ac5ce8cfa0a932a322296e90b07947a550b18cc9af574c5eae9

    SHA512

    bf4a296355b9294a3ae3a73caf71c26cf69a1b193eaf919e1e867ef08b54aa5d98ba7aea9220e33d0c6ada20aded9886a9ad4050bd355de2bd851e2bb1e8c512

  • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Office64WW.xml.RYK

    Filesize

    4KB

    MD5

    35dd9c93bfafa61d0647cefecbc340ba

    SHA1

    e98fb87fc13f0ba10f7c7ae6aed0eb2a5e769d29

    SHA256

    8f3e5d6b2cf48c30de247e88c6d74fc5ba3b6af65e182badad64fc64920fc675

    SHA512

    e37dfe941ec70f86405174f295632cd4b49e0027b77fea5494d4df7abbde955c6eb3449857509ab9e07aed99680190a2ffff329d3fd7eb216dbe15902e2ed0e4

  • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\ProPlusWW.msi.RYK

    Filesize

    1.7MB

    MD5

    ae86b66f0a8a7e41e48f8bd9746b47bb

    SHA1

    619971d42f5324070ba9474a5bbaaa7517bb130e

    SHA256

    5becd3478673f10a279fdcedbaa829b0888c904df8bf2fc01b5f9302d200eec9

    SHA512

    d03d64222c534146debfc7bc53c0d6608129bd9243d8af8ae1df15ef1adfe4805338bbb154cdf037ea20a0a130f76cc4486a6d5aff58b9e467116e18c757bea6

  • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\ProPlusWW.xml.RYK

    Filesize

    17KB

    MD5

    55fb00a004858cd3d7def1e1202f4e2d

    SHA1

    b7e084cbcb7cfd4cae44ff222f79f5c7da309e0e

    SHA256

    d7566e1c645ca81846cdc9e9bfa1719d5a919a0489d96282fdb407d414200346

    SHA512

    4e63a82a78e4cf4fe94b8ab23e7c49b4f75c60a70c64205b678637187a9b82345319bca03f66e954c4d4b2327feba57e5a782c4f2466188dae8588e2bf31d397

  • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\ProPsWW.cab

    Filesize

    1.3MB

    MD5

    661affdb1e762a55f7ce42ce53af2428

    SHA1

    9c48e08a2003be911d77874cd64b0c2bc5d9c526

    SHA256

    f8195de7472f548b8666d931c18d42bc68582b2d490d0f64585621b64b7ffd42

    SHA512

    7c4c0f20900d36d6c81aea1a443176f7e269deaca9ff1a9d50b4fe25cf7a6f2f09a67265cd1ee0f4ceec6c2ce8ec79f3940cca8aa024120bc85687c2e4d325fb

  • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\ProPsWW2.cab

    Filesize

    1.1MB

    MD5

    296e2ab188f1a9a3c39af7e6fcd16615

    SHA1

    33166687555a0b68f4b0ec8b2349270fb7e55f33

    SHA256

    2da7864e379b1c80b6addbc7d66b42851defaad042632c886c39f360a6c1e063

    SHA512

    1a96c6ac56d94dee48a113b334928b066ad128d265fbb0a26c27bd839d16c3951a7bbd7be3f427fd6b22ada6d9fc5eb75ae815efac21632a152f4a2c34ec9e52

  • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Setup.xml.RYK

    Filesize

    31KB

    MD5

    e4cb806b1211d12c2b8f729f4e9b81df

    SHA1

    efba21e508f1a40104e179debb3ed7ffaf6a6adc

    SHA256

    2f2b9f87e4e91ef3f4dfd4df49c7ba0bf2dcf6d0dcfd9735b763d8c636f7e6b0

    SHA512

    918e69a531bdce0a85c38a8c765d73874576895d26d913aab744d059a4d6ea97e206d3fde780c771775714789babf1768784aa7bbab19d6206e080d25cf8a859

  • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\pkeyconfig-office.xrm-ms.RYK

    Filesize

    699KB

    MD5

    2d1c70365ac4b9ff5b2d78eb65c9ff56

    SHA1

    161ce972c29b02f95050d8e8cede32f09945c2f6

    SHA256

    01f598c9af9de201faa539a8d594ca6cdc1e07291346774cafff48017fca2ccb

    SHA512

    b234a7dbe151ddc1760fdb094b7bffa989de50c9782b564f8553c70ab09f0af890ccdab3031635ff3b8e9b07cadfc0284f10d28159d8f565f65fca21626f2a08

  • C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\ExcelLR.cab

    Filesize

    1.1MB

    MD5

    b051d1bbf4ba4a82aafc7c2a68772344

    SHA1

    e43e6427dcc830bf10f66f1307ea8b8fa7b41e43

    SHA256

    e4de72ca63e09d8d5cb12e2203ee1d0da2aa0285a23b61390e86d62e2d0051fe

    SHA512

    1b397eef36c652ae13351fbe9a66e9a16cc5e3322016883cc28ddce7564671a3f359de2bbaf661a1e0f0914a2ea35f4e18ea6479b28b5b6e29788fc37f22fb52

  • C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\ExcelMUI.msi

    Filesize

    1024KB

    MD5

    6196d014f345da0ea1387e369c97699d

    SHA1

    cd7ea30c9e2c9132e4719ce232d0bf1df767a24a

    SHA256

    800c16ee4dc90ce359dee9634b033848b4a2e37d48ee398aef09588b0e3cac5a

    SHA512

    1a8092f99153e0358a37c699322be610eb5b864ad9693b641906b64a37cf3d3d82b9f2668fa92262f11e42656b58c3675f810ae43884ca1b7b9a962f01e29b96

  • C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\ExcelMUI.xml.RYK

    Filesize

    1KB

    MD5

    8cf9820d0d13e69595c5859bfe6ae748

    SHA1

    b62a5194f7711de94ed4285ce003be812c6ac51e

    SHA256

    a0532af4964d8a9bf69aa8452e1a2e80dcbc53aea4c93fc7991b9fc418992280

    SHA512

    fa392cb0c7a9c84d10df0e374e6806c843061e2009e81adf5e00b53e1847d0d8a4821dca1848c8de3e0c93caa0727a31dd2de1e56c99ac0ca072d85d0bde3672

  • C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\Setup.xml.RYK

    Filesize

    2KB

    MD5

    f3b540cffd90cece7b77e855e2683788

    SHA1

    11840544bbf3d21a2156b8cc309800c8aecdfb0b

    SHA256

    f72e1ea78227021ec93ca404d4dba36c8b9d163218d45bde2b24f969bc974dd2

    SHA512

    53c9e9918418e0dbe5cc4607b135df79a56e96f1913592462527fcab91088990fc5c6f55150cfa82ad89e719c67469283fc06de68ae7262e14c4fa61db16956c

  • C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\PowerPointMUI.msi.RYK

    Filesize

    1.7MB

    MD5

    3e2af85f96177a068d380821d7d9eb30

    SHA1

    695ee6624b21c970b6a7253b9918ce1157a2bd73

    SHA256

    b209363a4d37857ef04f97405bb0d4860dd34db2416b25b1e2bb2a81e2bfdb09

    SHA512

    fe1e3f2a5cf3f800af6c73945c2a0b55324e11a94ca295f16e4c3489b335f9cfc9b2725097170a4a4361147cfc254ce552a073890de9b2ee1ed0ad4097520aca

  • C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\PowerPointMUI.xml.RYK

    Filesize

    1KB

    MD5

    092ac597960afb259e26855ed6f184ab

    SHA1

    9243ff699113c61fffeb02ce15fb68157e1e90fa

    SHA256

    978d5490d0a3bd0e0da85aefd2950e3c66f2165c84243dd79cc7edb32cd36276

    SHA512

    c0d6cfd10f2c0a786883c3b0fd220b906205b2529a783e9d9190b08d02375f9302f02e8db9534eda5a0a3bfc5ce054c81447198f2c39921f762ce451221e2e99

  • C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\PptLR.cab

    MD5

    d41d8cd98f00b204e9800998ecf8427e

    SHA1

    da39a3ee5e6b4b0d3255bfef95601890afd80709

    SHA256

    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

    SHA512

    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

  • C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\Setup.xml.RYK

    Filesize

    2KB

    MD5

    3953c311c6b979ed84e79a6130ca5c2a

    SHA1

    9fcced407842a94c57a1df8edf55a6ff2bce66ab

    SHA256

    c2c6bec7b0ab5443ea009d36fc9888e58f30a1de45647b34295a3bf8065c7051

    SHA512

    2ec4f759dd34d17ae0d3d2eb0b972690db8fdadd434cb179dc472642ba2f87e5961c2cf2f54e3cf9f7b325e0dae58e0dfedd5afddf8940d6897a1d5956629b55

  • C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\PubLR.cab.RYK

    Filesize

    1.5MB

    MD5

    7cf37154f0e9afa024e1981d346f0668

    SHA1

    0bdf3ba53397e9be2713cb84764273a6a09514db

    SHA256

    98c157653034f92b0d8bf89a979592f4e2c8572b9acb1a712ef051a24d1898a0

    SHA512

    bf0e133d216b9003168a206b324c8e15de0c73f7fde9184804504155b13f9ea27ae49547752f7c4c4b1c70568045d59709dc7dc32056b14f8a76efb844cd4ab9

  • C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\PublisherMUI.msi.RYK

    Filesize

    1.7MB

    MD5

    058fb4f766fd9563f9b42e2c369ff135

    SHA1

    9aeb035c0d4e7db232fc910c4c8c5fb4960d3eeb

    SHA256

    274347a3e699185da4bce8a162b3ec960724c9692d5a40a62db7bcd655e01222

    SHA512

    fdc4709685b0de7216d808ae5ba9901539a7568a691b82cbefea3d85c580ec7e62f3ee83a0319d3960b1d589782468c79269ba5ff65d93719e2e540dce99ddae

  • C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\PublisherMUI.xml.RYK

    Filesize

    1KB

    MD5

    6f8ff6f9715c666b5292caa9920fc594

    SHA1

    c87eaa7934a12b4b93ab59985cd1324d16cd91b6

    SHA256

    575226fb285a8b969ebbeb63dc277758ab4cd392970bd7447fbb1a9a0618a4c7

    SHA512

    eca1ceccb37e91b60d87da22f61204efaf49c02b51208c92b4495b663e229c489c5655edebfc9dbd9f64d02a01b69d9dee140c309cbceb707415eef3d64fce47

  • C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\Setup.xml.RYK

    Filesize

    1KB

    MD5

    e877f5a11a5c86d2181505771a3b01db

    SHA1

    9d783dc9694f676cd59319d7b074968bc3a72679

    SHA256

    085b16a9f7cddb65ce5917f6ec4b25cdf60f57bd48720ceabc77fa0bac812f49

    SHA512

    77404163b4849a00d7e841e5489bd22c02233291742806ce3408151530392dc50f55b95446aec7b42b5862b8fd21e9a97b65597fdffb5e810480918aacc775eb

  • C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\OutlkLR.cab.RYK

    Filesize

    1024KB

    MD5

    aa93205a636cbfc692c085469cfaac24

    SHA1

    8956e515ffa00ca64fae1a51c1267c45fd60d1f6

    SHA256

    100b7d9f795e0d876c9406e7f85439c0bb3536fdf73550c3a42b559d3fbff22a

    SHA512

    af34ff64b7fbaa73611558993022705126be69a4311c3ab23f281f8642c3b4b40c21ad0e61cf53cf54a436aeef891670d5cf40a6e2eaebe25f2cd9c83aaadcfe

  • C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\OutlookMUI.msi.RYK

    Filesize

    960KB

    MD5

    3693748befa76c56ea99b31c1ee0b5e2

    SHA1

    2c912f6e713d70e918f307ea0d65d9bbfd8b2069

    SHA256

    ca18be5b201d9f6b6b5ec769d11f572a452e2a855b16def6e42f5b47baa0898b

    SHA512

    49b2934063cc312e49f62ba09a5878b033e835794509472b9190d2aa93b5eb071c26d86af1c6a1c5e8ccdcc43bbe48389d227932659846b888ffa0817d8d5391

  • C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\OutlookMUI.xml.RYK

    Filesize

    3KB

    MD5

    5c1c5563862aeec0c98e85ccfafa0a30

    SHA1

    66499f7e503c74c3bbc5315272f399a0b8ca7ee9

    SHA256

    316d9c10f5b73de8b29575d77586a7fbf9987e996257e857d36ad880c4f74cf8

    SHA512

    fc66b97fa6f847d0a3afa2496f6bf0ced9a34affe1d5f403120c36b841259925b1eaef52989a1b16e20d19fcea3b196acbf24b24d10830f9449f24f9c5294765

  • C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\Setup.xml.RYK

    Filesize

    4KB

    MD5

    f21a16d1d01cdb9fdaf8a7653000970d

    SHA1

    f979ee178adc8ca2735d88d6356d09756a09c67c

    SHA256

    1c02e4f439f7370ff4d2e6f480bca3959f6d59042fc5d0512815b4ee76042e73

    SHA512

    a9747ea3a9eac08fb34fc2061ed076ed5aabe3fe3d33c7f4ca5d00ae1bb9b221afb07fbbb048eab63341284fd04130a03d0df65a4a6e06ca82f98e3e5b646d2f

  • C:\MSOCache\All Users\{90140000-001B-0409-0000-0000000FF1CE}-C\Setup.xml.RYK

    Filesize

    2KB

    MD5

    b84752d5391533019522c4d775d56e4c

    SHA1

    3dd7895335d441741d23f50de57caa0962e99d91

    SHA256

    8ee384502f480404e533afef95e30976bf5a5feb2ac19bb8d6fcf6c00e05b867

    SHA512

    5dd13c7fd81f07913fbdabc089d0c364396f291c146ac4831c5e08d72c32487bf07d58d2a6274af87635d7f094a2779dd6d0e52b63ece3096ade12be2050efab

  • C:\MSOCache\All Users\{90140000-001B-0409-0000-0000000FF1CE}-C\WordLR.cab.RYK

    Filesize

    896KB

    MD5

    68a4f12e0ce8164475d648aa9f7123b2

    SHA1

    fa28910c3ba7b154ef5709043eb6b25bcfafd630

    SHA256

    0a212d7029a09fe6156cc52565c03dcf08d720dab92b80ef0c79d47bfe21dc38

    SHA512

    c7430bc76ad98070b4a8d98e996500da999c8a3be3ba5cb782078c450434e567af90c787f5e101de3a3edc618158d6967db0b82beefe396ae0adbb70253aac77

  • C:\MSOCache\All Users\{90140000-001B-0409-0000-0000000FF1CE}-C\WordMUI.msi.RYK

    Filesize

    896KB

    MD5

    bb829a72ea5bdd862e7dda7b3f2fb7f9

    SHA1

    e9b574a167bf14a6d77a94de6a5beb5770f4ae6f

    SHA256

    98f0f9c12e81f24cc944b076b9b8a13283ab237b87cfddb54688747455372839

    SHA512

    58bf017ed8231391615d34ddb6d5993b000efe746bf956bcfa37886f4f67658a822f1a22ebd76c2fc2cf75c1262f60c351bb3d0f4b6209c1ab826c88faddc869

  • C:\MSOCache\All Users\{90140000-001B-0409-0000-0000000FF1CE}-C\WordMUI.xml.RYK

    Filesize

    2KB

    MD5

    8f65a51d2bf09dd497ce79f840b1482f

    SHA1

    2bce63fb281586c74f344e4465278a72ed60318b

    SHA256

    f27be360051827cda8c6b0efc7f5c176302847255989cecab2d5d8ac8bc20fb0

    SHA512

    4b188c340cc4dae052e61c8f9876e5bcf59915915e6d1752ea5ce3ee103e0d6679353dc7725ca1eea88386991a4d16c7df8662a5a75ff0c1b56703dc5d66fd50

  • C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\Proof.en\Proof.cab.RYK

    Filesize

    832KB

    MD5

    8da11c05aea560412c93bfc54042e27c

    SHA1

    65ae2204a2d498dd82c3b1e04b2bd8b3ed16c208

    SHA256

    81c44ddedddf27425192339586639dff4509b561a7090a69b28ae6a2ae6f851c

    SHA512

    53d68af59e5b70f97877cfecf62c6b5cec9523c2d9ddc791baf891000ca15e7a994203436fd49c8d37351abc64eda7ce8dbe31eb92dfa3373c5654d7a260726c

  • C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\Proof.en\Proof.msi.RYK

    Filesize

    641KB

    MD5

    15f58123014a1ac30811dd8ab88b52db

    SHA1

    ef3b3266191887c2c799ce954f6859fac20e85e7

    SHA256

    34b8b358e4376504d8aed0a6a3396d8a5bda0de84628c4a8b2f0edcf83330104

    SHA512

    5b3dd7098ebb40ee160fe3f4c4cd00329d0ebbbce6c1b954a57578f29ccc0bf4a80df78a2410f098055f053ef782efa1710c673c2983be45a18ac74ca0849cd6

  • C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\Proof.en\Proof.xml.RYK

    Filesize

    1KB

    MD5

    52b1a8cb8195137f2e62cbe6f33e6454

    SHA1

    5431e24aca3b7527eb6b3806c64358f59503373e

    SHA256

    2d61998afdb4fd8a5cead7b45f7cee01229743b1ec8372ac6418ed8bc2c0ec0c

    SHA512

    1ce034838a3e845799c67fa9b1382d26d584ead925d181ac69378a2fc643f34fa0cc00eefaa325c88b86759e65e28cda0b5b6faee9ede97cdbdf29a812a4a62f

  • F:\$RECYCLE.BIN\S-1-5-21-2461186416-2307104501-1787948496-1000\RyukReadMe.html

    Filesize

    1KB

    MD5

    a275819b461f6458af0dcce3dc69bab2

    SHA1

    4211607b906db1280376dbc9202df7f426b2921b

    SHA256

    615ab23d7c60104e69412960185d34163add0d6f7238dc22a851cf2c12de2b3a

    SHA512

    8b744cd272ef41a44dbeaa098090fba83843dea2af32d41cee0f6800d067fd89a6d8486153c473729a9f7a9c2cf723dfa4c6f870c5179d216554878c695925f6