Analysis

  • max time kernel
    46s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 16:30

General

  • Target

    fca1e2ddc3b763f8babe9a57e17cd7901cae3e8430d6bf557dcbd7bcc60e2676.exe

  • Size

    2.5MB

  • MD5

    55ec1390f9414a67bf1ed6a5b8aa4f17

  • SHA1

    67683a13f286d32d30cb49be06ec2962fea8fd3c

  • SHA256

    fca1e2ddc3b763f8babe9a57e17cd7901cae3e8430d6bf557dcbd7bcc60e2676

  • SHA512

    3aec6bbc6c9636180a65ce380ea00139778aced45bd27bb4a54f63de42ac0a7d7997395f8c3a6819323378a03d0639c420554f3305938ab146dc16aa9b1a9288

  • SSDEEP

    49152:h1OsxCpYO/dJJDHhs6oxRkNfehWfNs4VGufZ9JODSTz4bka:h1Ovly7kNfrNq4a

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 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.

  • Drops Chrome extension 3 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 11 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fca1e2ddc3b763f8babe9a57e17cd7901cae3e8430d6bf557dcbd7bcc60e2676.exe
    "C:\Users\Admin\AppData\Local\Temp\fca1e2ddc3b763f8babe9a57e17cd7901cae3e8430d6bf557dcbd7bcc60e2676.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1416
    • C:\Users\Admin\AppData\Local\Temp\7zS658.tmp\tbUjwUF9osAhRYn.exe
      .\tbUjwUF9osAhRYn.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1188
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Program Files (x86)\GoSave\ck0h79RqcfYJnk.x64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:580
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\GoSave\ck0h79RqcfYJnk.x64.dll"
          4⤵
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          PID:568

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\GoSave\ck0h79RqcfYJnk.dat

    Filesize

    7KB

    MD5

    fa3b91893d9468224beb752a882aa388

    SHA1

    4cc81aa59a6dede206463b90a7cf7dc88fc02867

    SHA256

    336fa9f58cd6b65d78aa5dc94d38346f54331dd8a080745b30a8f5c4d1a88c60

    SHA512

    e1bf0de4a64091f02c11196a772c769e3e9e9ba9c8a87bbf18159780ab49f071afceabf2b20747fbc47abbe5aaa290092cf923d96882c52ef20da869e8b05654

  • C:\Program Files (x86)\GoSave\ck0h79RqcfYJnk.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • C:\Users\Admin\AppData\Local\Temp\7zS658.tmp\[email protected]\bootstrap.js

    Filesize

    2KB

    MD5

    df13f711e20e9c80171846d4f2f7ae06

    SHA1

    56d29cda58427efe0e21d3880d39eb1b0ef60bee

    SHA256

    6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

    SHA512

    6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

  • C:\Users\Admin\AppData\Local\Temp\7zS658.tmp\[email protected]\chrome.manifest

    Filesize

    35B

    MD5

    e8080896e18656a5d34c35aa5acda84a

    SHA1

    d1d4b3d6d593f268fc40a897efb61b2e91c9d367

    SHA256

    56e1cc0847df49e9116072391e95f52d713a5f1b94ee4ec73b7576150b79b650

    SHA512

    7c0adf0bd81bdaa4ac7061dd1f4ac70ad17e4e37ff2865bf259239a260232a7051cf2e77032e9695ad60f186109dccb0e8ecf9558c17ae13eb6897f8d1f206c7

  • C:\Users\Admin\AppData\Local\Temp\7zS658.tmp\[email protected]\content\bg.js

    Filesize

    9KB

    MD5

    5efd0be55db019114aa3f6e598495f18

    SHA1

    7405e3308753abee381836ee5a7735e56c2f7d38

    SHA256

    3bcac5047122d93a91a74772a653ad065bf869875ef1775c5d3f70b210a40d00

    SHA512

    f020cc5cc0a6a6b54702cd0a4c3576ae2175d5f83a64a83fd0fa12cdf85ec92d89fb3570a8c6d803eb66390f6da33ea570389f3ee4f2bfc535e9c09eab31155d

  • C:\Users\Admin\AppData\Local\Temp\7zS658.tmp\[email protected]\install.rdf

    Filesize

    594B

    MD5

    d94db7322db0629c6aa978226fdd7e23

    SHA1

    df96c2adf7e5e2110e660aed4ad6f7b32d5097a7

    SHA256

    3ecc066ba5387e0ef54deca871a300e277067c5176f8003f96cdd96a72697520

    SHA512

    ac47c21e0514cc8dbfb66ab3f6de68261dbf5fc515ac3043c4a7507e4d24a0d781a75a04e48dc370b5bb6c21f3145651e64589c2fc19bb03f117b2f28cdea8c9

  • C:\Users\Admin\AppData\Local\Temp\7zS658.tmp\ck0h79RqcfYJnk.dll

    Filesize

    738KB

    MD5

    49961c7c9a7aef57f49adf50d1c810f6

    SHA1

    fc2078aeff5d5abee27c9e8a500cb2d6ae755b05

    SHA256

    c80abdc502d18db54137edc2680a498402c765999814b7fe1b2a7b69a64ce846

    SHA512

    8ad2c3dbd3b4390e4c49561f25ff2acdd4ab4468074e213f3efc81a598f71620e8f21fc87114623a6c0509997e47e1c4f5ffe703c7421ae313f7ba536df2772f

  • C:\Users\Admin\AppData\Local\Temp\7zS658.tmp\ck0h79RqcfYJnk.tlb

    Filesize

    3KB

    MD5

    e3ab22d8beac0180520ab5289a64419b

    SHA1

    1456ba2c78b293e5a80185fefdf05f5dbe424937

    SHA256

    0d3342857b67678dd76e6a24e137f0d75ba399bb48bf5095d7e4f7dfa0bbe416

    SHA512

    c04163026ffa1c6fab34b4fdbf23702148c7c2a31dd356d26f9541027db078b6433aff3a5f749a209a3acbcf3a853a9b5f77984540e21be1f823ce92bcbfc4bf

  • C:\Users\Admin\AppData\Local\Temp\7zS658.tmp\ck0h79RqcfYJnk.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • C:\Users\Admin\AppData\Local\Temp\7zS658.tmp\lblikgjbjheegcgfpoekmakhnnlkoiom\background.html

    Filesize

    139B

    MD5

    a5b7f6b82169d6bc1153d01a13891d1d

    SHA1

    0ec074a639644d1e1c4229afcc17c5af67e0224a

    SHA256

    293f4b3c9c1595b6e6ae6b7592e662abb169bff57317e71107dc02f84ac31e3c

    SHA512

    07167cc05fc2dee029371c0d264c44a227db159608280b1fbdf4538f29d95bb6d798ef02e5d83a2f18e86a1d74517f34c67fdc89dc7c3d3a003a6420abe4cfda

  • C:\Users\Admin\AppData\Local\Temp\7zS658.tmp\lblikgjbjheegcgfpoekmakhnnlkoiom\content.js

    Filesize

    144B

    MD5

    fca19198fd8af21016a8b1dec7980002

    SHA1

    fd01a47d14004e17a625efe66cc46a06c786cf40

    SHA256

    332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

    SHA512

    60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

  • C:\Users\Admin\AppData\Local\Temp\7zS658.tmp\lblikgjbjheegcgfpoekmakhnnlkoiom\lR.js

    Filesize

    6KB

    MD5

    fbfe5032c2cc63eebcc3aeada4928e17

    SHA1

    53e87c238f54191add39396bf80edf752496302a

    SHA256

    334670cc8699ac19b35ca01d2b034187dc6a5d44c53ee792fa78ceef969d5737

    SHA512

    5d5412a8ef04a7429c28c44d367e2f77f25eded90188b77d73ea534fa6d2722b078fd4b650cbe7bc1af275a93c3eccaa3ce7707462d39af4c60cdd77b6747312

  • C:\Users\Admin\AppData\Local\Temp\7zS658.tmp\lblikgjbjheegcgfpoekmakhnnlkoiom\lsdb.js

    Filesize

    531B

    MD5

    36d98318ab2b3b2585a30984db328afb

    SHA1

    f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

    SHA256

    ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

    SHA512

    6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

  • C:\Users\Admin\AppData\Local\Temp\7zS658.tmp\lblikgjbjheegcgfpoekmakhnnlkoiom\manifest.json

    Filesize

    498B

    MD5

    640199ea4621e34510de919f6a54436f

    SHA1

    dc65dbfad02bd2688030bd56ca1cab85917a9937

    SHA256

    e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af

    SHA512

    d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a

  • C:\Users\Admin\AppData\Local\Temp\7zS658.tmp\tbUjwUF9osAhRYn.dat

    Filesize

    7KB

    MD5

    fa3b91893d9468224beb752a882aa388

    SHA1

    4cc81aa59a6dede206463b90a7cf7dc88fc02867

    SHA256

    336fa9f58cd6b65d78aa5dc94d38346f54331dd8a080745b30a8f5c4d1a88c60

    SHA512

    e1bf0de4a64091f02c11196a772c769e3e9e9ba9c8a87bbf18159780ab49f071afceabf2b20747fbc47abbe5aaa290092cf923d96882c52ef20da869e8b05654

  • C:\Users\Admin\AppData\Local\Temp\7zS658.tmp\tbUjwUF9osAhRYn.exe

    Filesize

    772KB

    MD5

    5ed7019dcd0008dbcd8e54017b8c7dd9

    SHA1

    7e4457da2ff06c2170bad636c9eb7c1bb436fd06

    SHA256

    7f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7

    SHA512

    10cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db

  • C:\Users\Admin\AppData\Local\Temp\7zS658.tmp\tbUjwUF9osAhRYn.exe

    Filesize

    772KB

    MD5

    5ed7019dcd0008dbcd8e54017b8c7dd9

    SHA1

    7e4457da2ff06c2170bad636c9eb7c1bb436fd06

    SHA256

    7f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7

    SHA512

    10cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db

  • \Program Files (x86)\GoSave\ck0h79RqcfYJnk.dll

    Filesize

    738KB

    MD5

    49961c7c9a7aef57f49adf50d1c810f6

    SHA1

    fc2078aeff5d5abee27c9e8a500cb2d6ae755b05

    SHA256

    c80abdc502d18db54137edc2680a498402c765999814b7fe1b2a7b69a64ce846

    SHA512

    8ad2c3dbd3b4390e4c49561f25ff2acdd4ab4468074e213f3efc81a598f71620e8f21fc87114623a6c0509997e47e1c4f5ffe703c7421ae313f7ba536df2772f

  • \Program Files (x86)\GoSave\ck0h79RqcfYJnk.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Program Files (x86)\GoSave\ck0h79RqcfYJnk.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Users\Admin\AppData\Local\Temp\7zS658.tmp\tbUjwUF9osAhRYn.exe

    Filesize

    772KB

    MD5

    5ed7019dcd0008dbcd8e54017b8c7dd9

    SHA1

    7e4457da2ff06c2170bad636c9eb7c1bb436fd06

    SHA256

    7f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7

    SHA512

    10cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db

  • memory/568-77-0x0000000000000000-mapping.dmp

  • memory/568-78-0x000007FEFB9E1000-0x000007FEFB9E3000-memory.dmp

    Filesize

    8KB

  • memory/580-73-0x0000000000000000-mapping.dmp

  • memory/1188-56-0x0000000000000000-mapping.dmp

  • memory/1416-54-0x0000000074DC1000-0x0000000074DC3000-memory.dmp

    Filesize

    8KB