Analysis

  • max time kernel
    41s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 19:24

General

  • Target

    c7f6b71c286fadacbc2efce23a86ef5915ea72948bdb150cf1d62a66755f1dc1.exe

  • Size

    2.5MB

  • MD5

    821a2592b9e19312cfec37b44d079728

  • SHA1

    bd5a42b8dff4e91d5a9533cdc8afb1085ad3d106

  • SHA256

    c7f6b71c286fadacbc2efce23a86ef5915ea72948bdb150cf1d62a66755f1dc1

  • SHA512

    88036b6c2aad9357b44e9e59f32db76ae2af5b4bb272ab4e17e4d55fcb9964e6b8e22111202d517d3ce98245bf39eb6311d89af6de63984a9deca97facfc95b3

  • SSDEEP

    49152:h1OsQCpYO/dJJDHhs6oxRkNfehWfNs4VGufZ9JODSTz4bkD:h1OYly7kNfrNq4D

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 Program Files directory 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c7f6b71c286fadacbc2efce23a86ef5915ea72948bdb150cf1d62a66755f1dc1.exe
    "C:\Users\Admin\AppData\Local\Temp\c7f6b71c286fadacbc2efce23a86ef5915ea72948bdb150cf1d62a66755f1dc1.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:816
    • C:\Users\Admin\AppData\Local\Temp\7zSA1F.tmp\1IHuQaNRtNWUEOU.exe
      .\1IHuQaNRtNWUEOU.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2000
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Program Files (x86)\GoSave\VzvFToU2tbo0N0.x64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1376
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\GoSave\VzvFToU2tbo0N0.x64.dll"
          4⤵
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          PID:1424

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\GoSave\VzvFToU2tbo0N0.dat

    Filesize

    6KB

    MD5

    92b0d24f7f1295a2de634e669508d8d2

    SHA1

    8903c8b26058eb30facc0011f3fbe84105dd09ff

    SHA256

    ae414c7e1d4edb28fe106d1a42b9e56d24d0d4a7bd3d828973a98135f8f6659d

    SHA512

    d95540b4f569cefb1ccbfbeae76a39c981b8832c00d0a62a37f9b3ae5929b1b30f0266e58aade51fd74098c48b344c17f5f8782c0e3d3263d02d0dc85410516e

  • C:\Program Files (x86)\GoSave\VzvFToU2tbo0N0.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • C:\Users\Admin\AppData\Local\Temp\7zSA1F.tmp\1IHuQaNRtNWUEOU.dat

    Filesize

    6KB

    MD5

    92b0d24f7f1295a2de634e669508d8d2

    SHA1

    8903c8b26058eb30facc0011f3fbe84105dd09ff

    SHA256

    ae414c7e1d4edb28fe106d1a42b9e56d24d0d4a7bd3d828973a98135f8f6659d

    SHA512

    d95540b4f569cefb1ccbfbeae76a39c981b8832c00d0a62a37f9b3ae5929b1b30f0266e58aade51fd74098c48b344c17f5f8782c0e3d3263d02d0dc85410516e

  • C:\Users\Admin\AppData\Local\Temp\7zSA1F.tmp\1IHuQaNRtNWUEOU.exe

    Filesize

    772KB

    MD5

    5ed7019dcd0008dbcd8e54017b8c7dd9

    SHA1

    7e4457da2ff06c2170bad636c9eb7c1bb436fd06

    SHA256

    7f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7

    SHA512

    10cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db

  • C:\Users\Admin\AppData\Local\Temp\7zSA1F.tmp\1IHuQaNRtNWUEOU.exe

    Filesize

    772KB

    MD5

    5ed7019dcd0008dbcd8e54017b8c7dd9

    SHA1

    7e4457da2ff06c2170bad636c9eb7c1bb436fd06

    SHA256

    7f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7

    SHA512

    10cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db

  • C:\Users\Admin\AppData\Local\Temp\7zSA1F.tmp\VzvFToU2tbo0N0.dll

    Filesize

    738KB

    MD5

    49961c7c9a7aef57f49adf50d1c810f6

    SHA1

    fc2078aeff5d5abee27c9e8a500cb2d6ae755b05

    SHA256

    c80abdc502d18db54137edc2680a498402c765999814b7fe1b2a7b69a64ce846

    SHA512

    8ad2c3dbd3b4390e4c49561f25ff2acdd4ab4468074e213f3efc81a598f71620e8f21fc87114623a6c0509997e47e1c4f5ffe703c7421ae313f7ba536df2772f

  • C:\Users\Admin\AppData\Local\Temp\7zSA1F.tmp\VzvFToU2tbo0N0.tlb

    Filesize

    3KB

    MD5

    e3ab22d8beac0180520ab5289a64419b

    SHA1

    1456ba2c78b293e5a80185fefdf05f5dbe424937

    SHA256

    0d3342857b67678dd76e6a24e137f0d75ba399bb48bf5095d7e4f7dfa0bbe416

    SHA512

    c04163026ffa1c6fab34b4fdbf23702148c7c2a31dd356d26f9541027db078b6433aff3a5f749a209a3acbcf3a853a9b5f77984540e21be1f823ce92bcbfc4bf

  • C:\Users\Admin\AppData\Local\Temp\7zSA1F.tmp\VzvFToU2tbo0N0.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • C:\Users\Admin\AppData\Local\Temp\7zSA1F.tmp\[email protected]\bootstrap.js

    Filesize

    2KB

    MD5

    df13f711e20e9c80171846d4f2f7ae06

    SHA1

    56d29cda58427efe0e21d3880d39eb1b0ef60bee

    SHA256

    6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

    SHA512

    6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

  • C:\Users\Admin\AppData\Local\Temp\7zSA1F.tmp\[email protected]\chrome.manifest

    Filesize

    35B

    MD5

    69eb39563c9ada57ceaac9c11e670fbb

    SHA1

    9d33e42096c705cbc40f6678273f5590bfa5fe0a

    SHA256

    b31241b3a919435a53a24b1fe021c6223bb9a36b5468d57bf87cd55be2ae4223

    SHA512

    36a29aea0161b5508da7fa2d56a305b709285d48d7de701d24dd5f5005bd0abc3cd6c998a49351b48e22fff4a0a260f14e50180769f8b53142771309fcb22d07

  • C:\Users\Admin\AppData\Local\Temp\7zSA1F.tmp\[email protected]\content\bg.js

    Filesize

    7KB

    MD5

    9d3e0958f3c7a99e2606f6abace6f773

    SHA1

    079b12faff9fbd2aad5af1e6dd1cf92d46199425

    SHA256

    7b3cd37097010a2f7e974d635ae98fc6add9881de8826697b5be3f77be2f3498

    SHA512

    3a8d607e3265babdd82af25fef3b519fc27f5f994ff8cf7cf377c66259aa1c33f450b0628b7f6732db34a1a44a36e6b5bd1effa7938d99e0189c39f7f6f3b019

  • C:\Users\Admin\AppData\Local\Temp\7zSA1F.tmp\[email protected]\install.rdf

    Filesize

    598B

    MD5

    42324d0ab82522e8bd4fb02985e87a39

    SHA1

    8fe7d73a68b90eabb660435e75792134b4d714c9

    SHA256

    c5d9e28d8509c327c0e67238d8c56f2365b66253c51cf6343931b0014bf97d10

    SHA512

    5df0aeb2fdb93d6b8a50f22e91bad2d1d3ea002109a08bb27e0f4e5290b224fef85dc5c904f8230ddae5af1c9cecfd3f09b10ba6474b410f53f7a92ef49dca7d

  • C:\Users\Admin\AppData\Local\Temp\7zSA1F.tmp\icaddalmeheomhklfifbegacnangajka\Ws.js

    Filesize

    5KB

    MD5

    adb7a9c58085d0e144545f92e9db76bd

    SHA1

    a227efa67bcf9d78f7c4e991342d6e60dbbf5a31

    SHA256

    8279135e37c163fc863828a271aebbd3c4e3cf9adc1f4a072207802cf66386b9

    SHA512

    5f5c91cfe1bc4fb52736bf1e8cb1dc8a22294a3f75472b6b5c5661c0dff0433447b09c9f28196783addb790d22c203ae335eae2b72ff79457e13faed2a762b5e

  • C:\Users\Admin\AppData\Local\Temp\7zSA1F.tmp\icaddalmeheomhklfifbegacnangajka\background.html

    Filesize

    139B

    MD5

    ce86d16d377c7f021c343f8f5a9ddbe8

    SHA1

    73885771dc744dcb40d2cf048a6579fdf1198534

    SHA256

    35a5b79362f8bed002d7f66506756d2d74b211199aaaacd2725ae2d387132daf

    SHA512

    e99292d686b72d389758dfdcaeae592c4df73bba9b3502e9e68756b1cde521605c0f2bfebca5a6ad9d9f5f5c4fbf28013b4f42afe20ae933abc092f35f165658

  • C:\Users\Admin\AppData\Local\Temp\7zSA1F.tmp\icaddalmeheomhklfifbegacnangajka\content.js

    Filesize

    144B

    MD5

    fca19198fd8af21016a8b1dec7980002

    SHA1

    fd01a47d14004e17a625efe66cc46a06c786cf40

    SHA256

    332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

    SHA512

    60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

  • C:\Users\Admin\AppData\Local\Temp\7zSA1F.tmp\icaddalmeheomhklfifbegacnangajka\lsdb.js

    Filesize

    531B

    MD5

    36d98318ab2b3b2585a30984db328afb

    SHA1

    f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

    SHA256

    ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

    SHA512

    6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

  • C:\Users\Admin\AppData\Local\Temp\7zSA1F.tmp\icaddalmeheomhklfifbegacnangajka\manifest.json

    Filesize

    498B

    MD5

    640199ea4621e34510de919f6a54436f

    SHA1

    dc65dbfad02bd2688030bd56ca1cab85917a9937

    SHA256

    e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af

    SHA512

    d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a

  • \Program Files (x86)\GoSave\VzvFToU2tbo0N0.dll

    Filesize

    738KB

    MD5

    49961c7c9a7aef57f49adf50d1c810f6

    SHA1

    fc2078aeff5d5abee27c9e8a500cb2d6ae755b05

    SHA256

    c80abdc502d18db54137edc2680a498402c765999814b7fe1b2a7b69a64ce846

    SHA512

    8ad2c3dbd3b4390e4c49561f25ff2acdd4ab4468074e213f3efc81a598f71620e8f21fc87114623a6c0509997e47e1c4f5ffe703c7421ae313f7ba536df2772f

  • \Program Files (x86)\GoSave\VzvFToU2tbo0N0.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Program Files (x86)\GoSave\VzvFToU2tbo0N0.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Users\Admin\AppData\Local\Temp\7zSA1F.tmp\1IHuQaNRtNWUEOU.exe

    Filesize

    772KB

    MD5

    5ed7019dcd0008dbcd8e54017b8c7dd9

    SHA1

    7e4457da2ff06c2170bad636c9eb7c1bb436fd06

    SHA256

    7f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7

    SHA512

    10cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db

  • memory/816-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

    Filesize

    8KB

  • memory/1376-73-0x0000000000000000-mapping.dmp

  • memory/1424-77-0x0000000000000000-mapping.dmp

  • memory/1424-78-0x000007FEFB731000-0x000007FEFB733000-memory.dmp

    Filesize

    8KB

  • memory/2000-56-0x0000000000000000-mapping.dmp