Analysis

  • max time kernel
    42s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 21:15

General

  • Target

    a537929cebf4db4c8419a271b2958985ac321948b6f7e0e29241b9f37b0536cc.exe

  • Size

    2.5MB

  • MD5

    68160fe3148de6c4b457b9ff7548d023

  • SHA1

    f3bcedc72b3caf505c0aff1a13b9afcdd1d8b168

  • SHA256

    a537929cebf4db4c8419a271b2958985ac321948b6f7e0e29241b9f37b0536cc

  • SHA512

    1756e4a28532c1067017c445b7094e867ebc76be80ce37f67df5d285943fc673962f298c7aa43a871e20b40423a423f4c450af43b91224ad292596175559e8c8

  • SSDEEP

    49152:h1OsG+CUVCan0ytkbv/uiAY2QipuqOXMzsivHHOHNRcb8N:h1Ot+Yan0v+QAuqOXQBv8

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\a537929cebf4db4c8419a271b2958985ac321948b6f7e0e29241b9f37b0536cc.exe
    "C:\Users\Admin\AppData\Local\Temp\a537929cebf4db4c8419a271b2958985ac321948b6f7e0e29241b9f37b0536cc.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Users\Admin\AppData\Local\Temp\7zSF7C8.tmp\Tw1fgF7OZes8kyt.exe
      .\Tw1fgF7OZes8kyt.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:2008
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Program Files (x86)\GoSave\SS7D33d5mZHE3Z.x64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:336
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\GoSave\SS7D33d5mZHE3Z.x64.dll"
          4⤵
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          PID:776

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Browser Extensions

1
T1176

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\GoSave\SS7D33d5mZHE3Z.dat
    Filesize

    6KB

    MD5

    8da88fa3a672b7cb5cca3a2e180d7656

    SHA1

    52f27b45caf8867ed3827a7caaf8eae01264c559

    SHA256

    903fc5d996f2f9b11416fdec5d443d2612fb733362b0243188b7b9b4750765c2

    SHA512

    221e94ce5fb2f17e88eb674f6b7d914547947578d03ba994fe5d84841006672ed2dd9db346435b1bf8a967305a3f3025e5ef446cf08ae07760d1d73da2a14b09

  • C:\Program Files (x86)\GoSave\SS7D33d5mZHE3Z.x64.dll
    Filesize

    881KB

    MD5

    bbec1f94c849ac4b361307420ccdc7ca

    SHA1

    bf13082a49dccc2aeb426965a755c981b3a6f87c

    SHA256

    803647055a99148674a80d8b791bbf4aec502bc85aa9a579b6a0a80ca8f0de35

    SHA512

    e0ec8717d067ca73cc0bdd0cf812f568e9c5dcd8aeb64bff00232330a46b0a16b93074cc035a93634afebf639cb9a1155c197701a9809a590af227a467d83611

  • C:\Users\Admin\AppData\Local\Temp\7zSF7C8.tmp\[email protected]\bootstrap.js
    Filesize

    2KB

    MD5

    df13f711e20e9c80171846d4f2f7ae06

    SHA1

    56d29cda58427efe0e21d3880d39eb1b0ef60bee

    SHA256

    6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

    SHA512

    6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

  • C:\Users\Admin\AppData\Local\Temp\7zSF7C8.tmp\[email protected]\chrome.manifest
    Filesize

    35B

    MD5

    56b3f905c51947534a93604e23dfd27d

    SHA1

    e18a4b3190bbd509bc222b1f24a89b4f475114b6

    SHA256

    5d24748e9f3a5dd2240a4d1c47eb1e4bab9ead0f395e5254007349036b61c073

    SHA512

    859689c50ec626d772b60ef8b6eb82072ef2d0c7f51d0a0cc269bd901e60b79d24511dbfb5e6493c2b293c3eece0dbe8c5d76f908d393653209e1a69f92e6f03

  • C:\Users\Admin\AppData\Local\Temp\7zSF7C8.tmp\[email protected]\content\bg.js
    Filesize

    7KB

    MD5

    34c7cc4506067c1e1bbc9f3f8bd1a5d5

    SHA1

    4096d7c255822e41637a409d9abe2b244b4f968e

    SHA256

    db8b5988fa8058ca3557d2177b922c7dca9e59cb9c94e87c1751f9f27a0e78b0

    SHA512

    e195b33a289d47644e9c2a4712d76ac7cdab2422fa50068865540c29aa1e77590219fa4a190e15ac8c295b2fe9e23bcaa6167173daedd10f37ed746bfceb732f

  • C:\Users\Admin\AppData\Local\Temp\7zSF7C8.tmp\[email protected]\install.rdf
    Filesize

    596B

    MD5

    c03c4a0916fcc4478485f12854d1ab4a

    SHA1

    7b2b705a2a726784dcb463cef8e40cef5f188756

    SHA256

    2699cca42a0e5ae0963169efd376e1d53b7b816a166b3939e7649ea8bfdcb46a

    SHA512

    b054a838db321e4f00f490c1cd71c76859abce955eeb7afc46db81599b22b332194373590394dc29d90ecbffb06672925aa650c377af794c44c3d9d5d2ff8ce4

  • C:\Users\Admin\AppData\Local\Temp\7zSF7C8.tmp\SS7D33d5mZHE3Z.dll
    Filesize

    749KB

    MD5

    a8100741ab8af6097247f445cee85e1c

    SHA1

    e8febe07d4454e884c7dda60a6310a822cac340e

    SHA256

    893e0c1e415f5375c78b0e15020d7f70aa99c90ca439d41c57c078d1835f7f0a

    SHA512

    3ed9740fc2f1b2943816a5785543cfda403b63fd1260df1c8ba5ec9627866c682706fd644f2daf4ee688986f25b7ee8ae56b39f2842bd837059fbfdfd5024762

  • C:\Users\Admin\AppData\Local\Temp\7zSF7C8.tmp\SS7D33d5mZHE3Z.tlb
    Filesize

    3KB

    MD5

    55036102fbe33fe4808fee8da37dfd2e

    SHA1

    6a3b76d89c42818189d05b37d9571be4b8f6b6b5

    SHA256

    a80428e48783d869c7463688ceca06b79af826ebd208b5d10a716c88b804f18b

    SHA512

    6da5713c4f07c38a49a4c93324365e1801b44f239444c29285ce68e9d11568449d871078edd58092b1670401bda34e424adf4d3671d10859f7351d9d45b7c272

  • C:\Users\Admin\AppData\Local\Temp\7zSF7C8.tmp\SS7D33d5mZHE3Z.x64.dll
    Filesize

    881KB

    MD5

    bbec1f94c849ac4b361307420ccdc7ca

    SHA1

    bf13082a49dccc2aeb426965a755c981b3a6f87c

    SHA256

    803647055a99148674a80d8b791bbf4aec502bc85aa9a579b6a0a80ca8f0de35

    SHA512

    e0ec8717d067ca73cc0bdd0cf812f568e9c5dcd8aeb64bff00232330a46b0a16b93074cc035a93634afebf639cb9a1155c197701a9809a590af227a467d83611

  • C:\Users\Admin\AppData\Local\Temp\7zSF7C8.tmp\Tw1fgF7OZes8kyt.dat
    Filesize

    6KB

    MD5

    8da88fa3a672b7cb5cca3a2e180d7656

    SHA1

    52f27b45caf8867ed3827a7caaf8eae01264c559

    SHA256

    903fc5d996f2f9b11416fdec5d443d2612fb733362b0243188b7b9b4750765c2

    SHA512

    221e94ce5fb2f17e88eb674f6b7d914547947578d03ba994fe5d84841006672ed2dd9db346435b1bf8a967305a3f3025e5ef446cf08ae07760d1d73da2a14b09

  • C:\Users\Admin\AppData\Local\Temp\7zSF7C8.tmp\Tw1fgF7OZes8kyt.exe
    Filesize

    770KB

    MD5

    a82d1b7ae1c33f81f672f8854ffccd3f

    SHA1

    d45a8ece75948bbc6f0e016a624f3000b12148fe

    SHA256

    bbcfacae3d17e8bc208d5c7bed61c00ef8591ee27bee2ceaa94a2c1231a512fc

    SHA512

    50192524d5e4e830e1d9f62f31ec5983bde14c09cbeab9ef75bc84617cb0ed16d51b49b7e141c87f265d3315c32cd9ea96d8dd46c640a0b7af1f1cb4ffaf5da2

  • C:\Users\Admin\AppData\Local\Temp\7zSF7C8.tmp\Tw1fgF7OZes8kyt.exe
    Filesize

    770KB

    MD5

    a82d1b7ae1c33f81f672f8854ffccd3f

    SHA1

    d45a8ece75948bbc6f0e016a624f3000b12148fe

    SHA256

    bbcfacae3d17e8bc208d5c7bed61c00ef8591ee27bee2ceaa94a2c1231a512fc

    SHA512

    50192524d5e4e830e1d9f62f31ec5983bde14c09cbeab9ef75bc84617cb0ed16d51b49b7e141c87f265d3315c32cd9ea96d8dd46c640a0b7af1f1cb4ffaf5da2

  • C:\Users\Admin\AppData\Local\Temp\7zSF7C8.tmp\fjmhhkhebjokmaacjcgbhbnjfagcckkl\background.html
    Filesize

    146B

    MD5

    f511cccbcccbf06c5ffbf77397e410a1

    SHA1

    68718be01f718b7ceb8cbbc11d56df78db14a26e

    SHA256

    fef399d48cab2d60b3cbe9b9c72d78b2d673bee866425f2d5e5b6afa4699a2aa

    SHA512

    cc25faae2dc6a2a3671a4f251a88c5e1300efcb03e4af5fe01b4cffc6f53647a3bdeb0613cfba7d4b412caf91e8f2c7fc125ece6c3d63fbe2838f936ed3ce45f

  • C:\Users\Admin\AppData\Local\Temp\7zSF7C8.tmp\fjmhhkhebjokmaacjcgbhbnjfagcckkl\content.js
    Filesize

    144B

    MD5

    fca19198fd8af21016a8b1dec7980002

    SHA1

    fd01a47d14004e17a625efe66cc46a06c786cf40

    SHA256

    332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

    SHA512

    60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

  • C:\Users\Admin\AppData\Local\Temp\7zSF7C8.tmp\fjmhhkhebjokmaacjcgbhbnjfagcckkl\lsdb.js
    Filesize

    531B

    MD5

    36d98318ab2b3b2585a30984db328afb

    SHA1

    f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

    SHA256

    ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

    SHA512

    6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

  • C:\Users\Admin\AppData\Local\Temp\7zSF7C8.tmp\fjmhhkhebjokmaacjcgbhbnjfagcckkl\manifest.json
    Filesize

    498B

    MD5

    640199ea4621e34510de919f6a54436f

    SHA1

    dc65dbfad02bd2688030bd56ca1cab85917a9937

    SHA256

    e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af

    SHA512

    d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a

  • C:\Users\Admin\AppData\Local\Temp\7zSF7C8.tmp\fjmhhkhebjokmaacjcgbhbnjfagcckkl\yY8jPx6IH.js
    Filesize

    5KB

    MD5

    a655c848255f1953e5884d78845e5f5e

    SHA1

    74c1da3e3480e3c99019d722816b477f4227872b

    SHA256

    8536a6206614caa9955961786c8c50b00db60213f9d8f419e45f716cb5eef59e

    SHA512

    5f7ec5240591daa53703e8d8d7e4806b24d1524234b4c58311608bdcc22b915e643e00bd9264787394b042f7b7077d7105bd0a01d680bf2dffa28b3fd8ca409c

  • \Program Files (x86)\GoSave\SS7D33d5mZHE3Z.dll
    Filesize

    749KB

    MD5

    a8100741ab8af6097247f445cee85e1c

    SHA1

    e8febe07d4454e884c7dda60a6310a822cac340e

    SHA256

    893e0c1e415f5375c78b0e15020d7f70aa99c90ca439d41c57c078d1835f7f0a

    SHA512

    3ed9740fc2f1b2943816a5785543cfda403b63fd1260df1c8ba5ec9627866c682706fd644f2daf4ee688986f25b7ee8ae56b39f2842bd837059fbfdfd5024762

  • \Program Files (x86)\GoSave\SS7D33d5mZHE3Z.x64.dll
    Filesize

    881KB

    MD5

    bbec1f94c849ac4b361307420ccdc7ca

    SHA1

    bf13082a49dccc2aeb426965a755c981b3a6f87c

    SHA256

    803647055a99148674a80d8b791bbf4aec502bc85aa9a579b6a0a80ca8f0de35

    SHA512

    e0ec8717d067ca73cc0bdd0cf812f568e9c5dcd8aeb64bff00232330a46b0a16b93074cc035a93634afebf639cb9a1155c197701a9809a590af227a467d83611

  • \Program Files (x86)\GoSave\SS7D33d5mZHE3Z.x64.dll
    Filesize

    881KB

    MD5

    bbec1f94c849ac4b361307420ccdc7ca

    SHA1

    bf13082a49dccc2aeb426965a755c981b3a6f87c

    SHA256

    803647055a99148674a80d8b791bbf4aec502bc85aa9a579b6a0a80ca8f0de35

    SHA512

    e0ec8717d067ca73cc0bdd0cf812f568e9c5dcd8aeb64bff00232330a46b0a16b93074cc035a93634afebf639cb9a1155c197701a9809a590af227a467d83611

  • \Users\Admin\AppData\Local\Temp\7zSF7C8.tmp\Tw1fgF7OZes8kyt.exe
    Filesize

    770KB

    MD5

    a82d1b7ae1c33f81f672f8854ffccd3f

    SHA1

    d45a8ece75948bbc6f0e016a624f3000b12148fe

    SHA256

    bbcfacae3d17e8bc208d5c7bed61c00ef8591ee27bee2ceaa94a2c1231a512fc

    SHA512

    50192524d5e4e830e1d9f62f31ec5983bde14c09cbeab9ef75bc84617cb0ed16d51b49b7e141c87f265d3315c32cd9ea96d8dd46c640a0b7af1f1cb4ffaf5da2

  • memory/336-73-0x0000000000000000-mapping.dmp
  • memory/776-77-0x0000000000000000-mapping.dmp
  • memory/776-78-0x000007FEFB5F1000-0x000007FEFB5F3000-memory.dmp
    Filesize

    8KB

  • memory/2008-56-0x0000000000000000-mapping.dmp
  • memory/2040-54-0x0000000075D61000-0x0000000075D63000-memory.dmp
    Filesize

    8KB