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Analysis

  • max time kernel
    133s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/10/2022, 09:20

General

  • Target

    dc6f64aea406d808c2fd61277d0f01479dd5c48cf3e429496b20befaf46e3d9e.exe

  • Size

    313KB

  • MD5

    6b421587e148276e98dfaf55d87bb8e3

  • SHA1

    bc63068be75d6c9d9153f213f3797f7ab24a1b30

  • SHA256

    dc6f64aea406d808c2fd61277d0f01479dd5c48cf3e429496b20befaf46e3d9e

  • SHA512

    6e6b618a29d2a6ce0577296e4bf64624cec017cfcde121d4959d5299003a86852e9a0c31c37f10d263de26be5441bd8bda4e247de1379357fd7676395ad36285

  • SSDEEP

    6144:91OgDPdkBAFZWjadD4sOMfdD2SD9iXbk0WBF/k57MrJgr+qpotyf3:91OgLda0x2S5ubAk57Xlvf3

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 4 IoCs
  • Modifies registry class 63 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dc6f64aea406d808c2fd61277d0f01479dd5c48cf3e429496b20befaf46e3d9e.exe
    "C:\Users\Admin\AppData\Local\Temp\dc6f64aea406d808c2fd61277d0f01479dd5c48cf3e429496b20befaf46e3d9e.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4244
    • C:\Users\Admin\AppData\Local\Temp\7zSA388.tmp\setup.exe
      .\setup.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:5076

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\wxDfast\bhoclass.dll

    Filesize

    137KB

    MD5

    ac13c733379328f86568f6e514c2f7f8

    SHA1

    338901240fedcef4e3892fd4c723c89154f4de05

    SHA256

    7bf09b5c2a9b6348227199c1b3951b57907ca6a5c215a04ad8d5e43232f5b562

    SHA512

    35f69a82694a2ea4268a3dde7940af6bd1c87a32d93a72723464f90e4e818805be9e80872469d1cc29150a9aac872fc78613a584baa1327dfa8478c2de5672c4

  • C:\Users\Admin\AppData\Local\Temp\7zSA388.tmp\[email protected]\chrome.manifest

    Filesize

    114B

    MD5

    ce2351e8b91e4a1aaeb243e0f1c0e31c

    SHA1

    ca3a64fae9259407490905830df256a5cc5cad68

    SHA256

    c24cdd24de8d019fa116674439554b6fff2395e146dd52b42a554055ce9254a4

    SHA512

    430a4469300ca144f544d466b8fc1d2297c3cabdb35beb48bbe561524e3d86b3da3d8e30c60de63af3522de67da93c20f5d4b952b551a4091d2197303204e7fa

  • C:\Users\Admin\AppData\Local\Temp\7zSA388.tmp\[email protected]\content\indexeddb.js

    Filesize

    1KB

    MD5

    8304db0bac166d121f3849544dfc5806

    SHA1

    aa4ee90870637766332e8fb8b0d55522cdf91b8c

    SHA256

    40d362c1af1ef85fbfa97d7b6d3e276a55c879753c1838d71ffe6ef223db435c

    SHA512

    b9482932bffb4d7a6835c00f30714ea1a26d9b657f2c7e23c9568300cfa4061de892569b9e9c4f99917475a90d1b47a4824968d5bd25a4e97a1734e663dc3e79

  • C:\Users\Admin\AppData\Local\Temp\7zSA388.tmp\[email protected]\content\jquery.js

    Filesize

    91KB

    MD5

    4bab8348a52d17428f684ad1ec3a427e

    SHA1

    56c912a8c8561070aee7b9808c5f3b2abec40063

    SHA256

    3739b485ac39b157caa066b883e4d9d3f74c50beff0b86cd8a24ce407b179a23

    SHA512

    a693069c66d8316d73a3c01ed9e6a4553c9b92d98b294f0e170cc9f9f5502c814255f5f92b93aeb07e0d6fe4613f9a1d511e1bfd965634f04e6cf18f191a7480

  • C:\Users\Admin\AppData\Local\Temp\7zSA388.tmp\[email protected]\content\jsext.js

    Filesize

    6KB

    MD5

    f8e20133d5c3a2a44883dffec33a4fef

    SHA1

    4f768e3b1a3672d90fd9c891e36a1c850202ee1a

    SHA256

    9372e811f2cd1bd652461c0eb16f1981d55bba1220d78330dd8c0c77ce94df8d

    SHA512

    906eb9a95cd1fde8160e38202437e33c1f0eb5eeba38d5a37012a125b8c58bdeddfa5400539707c2f337d9c8e526d5190d02c293d9a601fddd042bcf702d89be

  • C:\Users\Admin\AppData\Local\Temp\7zSA388.tmp\[email protected]\content\lsdb.js

    Filesize

    1KB

    MD5

    97b8b9897c08f47dce9e078c6d640cd1

    SHA1

    a69c4976ec4eba5d57d4655a8807bb2c370adc43

    SHA256

    aea16a69fc4a2ec97c6c6185d27dce25d58a5285c91934a522865b4c607fdef6

    SHA512

    45061150fce3863ee4cec508a4a3b182d8b705b60f1f1263e5ea89f20fdc219b408d870b8f44e32944afd29ab620f3507a332683c8861db701d8346d6fe2e888

  • C:\Users\Admin\AppData\Local\Temp\7zSA388.tmp\[email protected]\content\prfdb.js

    Filesize

    1KB

    MD5

    59dd0304956ce4336317e4020814478f

    SHA1

    e4a2642a0dbd3f5b983eb57a64229837ffd25186

    SHA256

    c5142b59a081dbb9eb394b08eac65c116e1fb1dd4210aab837c99a261c2accbd

    SHA512

    a2ea84e230773c7ac25a4a2f79c3f5b022f1528dc857aa27c80bd186498700ce8990cce127f94d3d7e80abe61311949a7b8a72f9bfa564be9bbeedb6f14a2716

  • C:\Users\Admin\AppData\Local\Temp\7zSA388.tmp\[email protected]\content\sqlite.js

    Filesize

    1KB

    MD5

    23ed5e80979efd1fcd5455956bcfbe1b

    SHA1

    2232ee45bbc292614bc6bee818be4fe30ac6a2fc

    SHA256

    1e8a34c5a79f1c5445ca8a009d7dc9140976bb047003cb70369803f70fb26523

    SHA512

    a87a9851d5161b4ffe38d41fd97ec19eff7321230796a4ce0c0e1d3d4c6bfed87efc728cfa08e737d230c46347016bae0ca016e07fdc0ec37cdcaf6e68879812

  • C:\Users\Admin\AppData\Local\Temp\7zSA388.tmp\[email protected]\content\wx.xul

    Filesize

    228B

    MD5

    cecc8532eceeae45be4d7bcffada3ca9

    SHA1

    d99a17d3e50cd1ef41675d533cb14ebb5e3024bd

    SHA256

    e9a3f6b062802a85b5a68049180e147b8c6cf223e114be348e2d5489016611ca

    SHA512

    6551c1a7eac209873affd121bbd9d46f1d856280980fa188b0a97e4c3b2a7a2e113fbce1739fb69a756a35922e7e21081178bed9b144ab24ecabad8c4853e85c

  • C:\Users\Admin\AppData\Local\Temp\7zSA388.tmp\[email protected]\install.rdf

    Filesize

    677B

    MD5

    70b11304be1118d956694b77db942b32

    SHA1

    0612df925b63af9b010d2aba35307880fef4e06b

    SHA256

    363fb95fe1277f26e875a6216c87ce9106dde8ebdd4e3a566f5ef24056f16f4f

    SHA512

    bea1f12e1273b7b751625344c0449c9df6d41057a3f57b91d9ad8e5c04e56df0b8f2dc92f6697853d01c4dc6428bf39d3e7859474b7e130b52f955c834ca6991

  • C:\Users\Admin\AppData\Local\Temp\7zSA388.tmp\background.html

    Filesize

    5KB

    MD5

    691e07cb48ab24b3babea90c4d1a4e6c

    SHA1

    793c987bd072985bb4380d2e4b5fa0d580f30ce9

    SHA256

    04cb672e6ef6f1e006705c934ab74628a4dbaefb1a67c259cc75a6dce6d08212

    SHA512

    e0e0421906315cfa2ff9ad426494720a2071f03b67a6c02d6873cc4b32fddb2d4e95bc097307b9c05a785ab879d4d9a40e6cc97ee0760471169dbb7c9f119cd5

  • C:\Users\Admin\AppData\Local\Temp\7zSA388.tmp\bhoclass.dll

    Filesize

    137KB

    MD5

    ac13c733379328f86568f6e514c2f7f8

    SHA1

    338901240fedcef4e3892fd4c723c89154f4de05

    SHA256

    7bf09b5c2a9b6348227199c1b3951b57907ca6a5c215a04ad8d5e43232f5b562

    SHA512

    35f69a82694a2ea4268a3dde7940af6bd1c87a32d93a72723464f90e4e818805be9e80872469d1cc29150a9aac872fc78613a584baa1327dfa8478c2de5672c4

  • C:\Users\Admin\AppData\Local\Temp\7zSA388.tmp\content.js

    Filesize

    386B

    MD5

    4302446f4537fd0c0702bdaad6e6ffa4

    SHA1

    5125bc55f6dc0995df653f48226c2ddedb6b5d88

    SHA256

    c85d1390b686f924381f933ecbe25146e2cf46e482d5d961c2ae0fb6f9566f35

    SHA512

    94bc835eb3b194648e24cb9cd377fd69d0aef300d3951cfcbc7cffa05ad2039cf70fbfb1fba1aff4cca177ce6aa77c815d210e7ad03aabe7cbd361183b40fc1f

  • C:\Users\Admin\AppData\Local\Temp\7zSA388.tmp\nfkkigodbjpdjmfclefdbolbikbpjoem.crx

    Filesize

    37KB

    MD5

    2c11061cca8a07186922f67b012c164f

    SHA1

    c540e4dd6fe0e65932eee9d58efe81852801b32b

    SHA256

    4cbc90a40edd1586af1043b2eb8bab3bae8da3430dacfc39dcfa39657944973f

    SHA512

    4fd6d20d22d9a688e76f1f99d4c358cbc482efc87113645be233ba5e65e26e2891f3e0d72e0075386580bfa2195acc1f2e2fc6fc8f4f3a5b946a260e569a4dcb

  • C:\Users\Admin\AppData\Local\Temp\7zSA388.tmp\settings.ini

    Filesize

    599B

    MD5

    0865deefadb8576555dc9c8999c4ce7c

    SHA1

    e20f64767b199d4cde5a8c4961d9cceca1fccd3c

    SHA256

    5fb282f93ee91bfdf521b81ffd0a2de3697b175aeb72f89971072cff009cd8f9

    SHA512

    8d6e01d2e46f70f5553f7d160787ac15688c4306f1d0fd01593f2279d9f873bc5b0f17a802bec97021441ea14bdfee37c18fb29e326ac4a8d83f911965bb8e9e

  • C:\Users\Admin\AppData\Local\Temp\7zSA388.tmp\setup.exe

    Filesize

    61KB

    MD5

    201d2311011ffdf6c762fd46cdeb52ab

    SHA1

    65c474ca42a337745e288be0e21f43ceaafd5efe

    SHA256

    15c0e4fd6091cda70fa308ea5ee956996f6eb23d24e44700bd5c74bf111cf2aa

    SHA512

    235d70114f391d9e7a319d94bdfc49665d147723379de7487ef76cfc968f7faa3191153b32ba1ab466caeeeeef4852381529a168c3acca9a8d5a26dfe0436f6b

  • C:\Users\Admin\AppData\Local\Temp\7zSA388.tmp\setup.exe

    Filesize

    61KB

    MD5

    201d2311011ffdf6c762fd46cdeb52ab

    SHA1

    65c474ca42a337745e288be0e21f43ceaafd5efe

    SHA256

    15c0e4fd6091cda70fa308ea5ee956996f6eb23d24e44700bd5c74bf111cf2aa

    SHA512

    235d70114f391d9e7a319d94bdfc49665d147723379de7487ef76cfc968f7faa3191153b32ba1ab466caeeeeef4852381529a168c3acca9a8d5a26dfe0436f6b