Analysis

  • max time kernel
    41s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 16:33

General

  • Target

    fbd4d4372ee0af1317ae809bd555fbb09490e955d3c655b7a9725c3beb23c19a.exe

  • Size

    2.5MB

  • MD5

    acc7f481ac3a11eb24c95275758b011e

  • SHA1

    597660fdc7338567669598c5f314c560c95b3cac

  • SHA256

    fbd4d4372ee0af1317ae809bd555fbb09490e955d3c655b7a9725c3beb23c19a

  • SHA512

    d0862927ee1d48a4d1752460a6d612e38254ec816d1c512b3531d9fc4d7371872299e9e639a9f6bb547fcdb2a5b302629ac1d75922b1ea569083dbef6ae91007

  • SSDEEP

    49152:h1OsB+QK3xQpjajXKioFMpYphqd3ArqvFUmEaDxEAxh4UR9TEv:h1OTQCjbKioVg3ArKh40c

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\fbd4d4372ee0af1317ae809bd555fbb09490e955d3c655b7a9725c3beb23c19a.exe
    "C:\Users\Admin\AppData\Local\Temp\fbd4d4372ee0af1317ae809bd555fbb09490e955d3c655b7a9725c3beb23c19a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1428
    • C:\Users\Admin\AppData\Local\Temp\7zS899.tmp\3ixRHsZV9ReuTL2.exe
      .\3ixRHsZV9ReuTL2.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:880
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Program Files (x86)\GoSave\CtAPwZ0FCoWfdv.x64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1224
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\GoSave\CtAPwZ0FCoWfdv.x64.dll"
          4⤵
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          PID:1532

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\CtAPwZ0FCoWfdv.dat
    Filesize

    6KB

    MD5

    6b8c4c52b2a1c5d35af8a7ac1c183adc

    SHA1

    61fbdbd58f72837d972ee262cc49db0f47e8a8c0

    SHA256

    4330c8ab06cc4a0f6d213bdc0684a5c973ddacf50da4ace975360410806a300d

    SHA512

    8f5aee5e94d977b59d78f4d54d04c1151bcd9112193a9b2f0684ae61ff110a71d4804e9af9d01d563212847a908bd30d76ed2ffd9d3118256ed3d568c1076600

  • C:\Program Files (x86)\GoSave\CtAPwZ0FCoWfdv.x64.dll
    Filesize

    887KB

    MD5

    fe714aa952e86e33b2cc1652e0f7f6cb

    SHA1

    25927512b7bef5f0586f7edab4d4804ec43409aa

    SHA256

    c4fc97da6b3393137f1711238c3ac18d36f903d256a9205fd40e71b4c99ce579

    SHA512

    fe5ac276c14bf2f5e59a1c4acccb98404cbbbe0bceed92a69e5860445682c44d8575ef6926706b9d750bcbf8dca539503547c4f693a8b28cb2e3463760c2c5a7

  • C:\Users\Admin\AppData\Local\Temp\7zS899.tmp\3ixRHsZV9ReuTL2.dat
    Filesize

    6KB

    MD5

    6b8c4c52b2a1c5d35af8a7ac1c183adc

    SHA1

    61fbdbd58f72837d972ee262cc49db0f47e8a8c0

    SHA256

    4330c8ab06cc4a0f6d213bdc0684a5c973ddacf50da4ace975360410806a300d

    SHA512

    8f5aee5e94d977b59d78f4d54d04c1151bcd9112193a9b2f0684ae61ff110a71d4804e9af9d01d563212847a908bd30d76ed2ffd9d3118256ed3d568c1076600

  • C:\Users\Admin\AppData\Local\Temp\7zS899.tmp\3ixRHsZV9ReuTL2.exe
    Filesize

    765KB

    MD5

    102dfa10cc29d7f1ded876dfd7274280

    SHA1

    f26e57d916bf7c5c3a4b49a2edaf30e945b0b44e

    SHA256

    67d9ee9e36b29e081ff2084dc488b0b6c4120e791a5c33ce6027cf89718e4bb3

    SHA512

    c3b7bb463873420f1582880308acca440c24fefaf45c9ad75319665e07c0f4548bd6fe07fabec48edd138a495a2607297773b16400e351e68a7462b45fb2c0c2

  • C:\Users\Admin\AppData\Local\Temp\7zS899.tmp\3ixRHsZV9ReuTL2.exe
    Filesize

    765KB

    MD5

    102dfa10cc29d7f1ded876dfd7274280

    SHA1

    f26e57d916bf7c5c3a4b49a2edaf30e945b0b44e

    SHA256

    67d9ee9e36b29e081ff2084dc488b0b6c4120e791a5c33ce6027cf89718e4bb3

    SHA512

    c3b7bb463873420f1582880308acca440c24fefaf45c9ad75319665e07c0f4548bd6fe07fabec48edd138a495a2607297773b16400e351e68a7462b45fb2c0c2

  • C:\Users\Admin\AppData\Local\Temp\7zS899.tmp\CtAPwZ0FCoWfdv.dll
    Filesize

    748KB

    MD5

    c4836ef373cdfa7eac3738c59ae9fb83

    SHA1

    2f019c1b3357e3be378ac804acfc98ec4f80b576

    SHA256

    5c7ba1a9e0bf346f3b4baa8e6965981b0ff412eabc879ecc531e98f268c34e3e

    SHA512

    e459aeba63802639c8e7245afc139d86e75a805e14b90318b926ff00fe384d14ac209dc76fb88319218c89fe1562c737ed4c5847cd92e698d529ba6737c2fb4d

  • C:\Users\Admin\AppData\Local\Temp\7zS899.tmp\CtAPwZ0FCoWfdv.tlb
    Filesize

    3KB

    MD5

    f461159d95e1a49a534ad0320ff3984b

    SHA1

    e3363285437846f046b126adbcd8e4789aa1f486

    SHA256

    d6967480d6f6fd4b9d31fb7e38ee6f04c76c36edd2795f852ec3938d984993d6

    SHA512

    2a12587d4a69c967771d8b4ed43e857a81899e177d5ec8ddf8365eaa4e8752032fac8d25b5c3a89ae5efc82b4c6dfd4ba2d26e998b3ad95cc8fdc6ef0c7416ed

  • C:\Users\Admin\AppData\Local\Temp\7zS899.tmp\CtAPwZ0FCoWfdv.x64.dll
    Filesize

    887KB

    MD5

    fe714aa952e86e33b2cc1652e0f7f6cb

    SHA1

    25927512b7bef5f0586f7edab4d4804ec43409aa

    SHA256

    c4fc97da6b3393137f1711238c3ac18d36f903d256a9205fd40e71b4c99ce579

    SHA512

    fe5ac276c14bf2f5e59a1c4acccb98404cbbbe0bceed92a69e5860445682c44d8575ef6926706b9d750bcbf8dca539503547c4f693a8b28cb2e3463760c2c5a7

  • C:\Users\Admin\AppData\Local\Temp\7zS899.tmp\noapaiinmpmmhmleoeflhahihohjciml\Il38jN.js
    Filesize

    5KB

    MD5

    902ac67c9ca983698f4382f1f5a70a9b

    SHA1

    e156a78eaa4acdefc2fa495a28667a47c954ccf5

    SHA256

    d970a5abd6521da25427574d90d0bdeab9af1df88a926d5db1580949a7fbffa4

    SHA512

    57f8a1a1809fffe22b9abf7edbce45e047b26a9bf9ce85a875fe5f736af61d7d09a5101a5d3e7bb1d3999c82a61dc67278344ae33b1eef7a844887bd11f622a7

  • C:\Users\Admin\AppData\Local\Temp\7zS899.tmp\noapaiinmpmmhmleoeflhahihohjciml\background.html
    Filesize

    143B

    MD5

    f04d2eb0868620e36029cc59b71b9ef6

    SHA1

    050283dbdeb17cc5cede4d8c0bab8abe974eda4a

    SHA256

    436d7ce65931def1516809f780c5d9fe510a1125b026c0cff912dea9ea707c48

    SHA512

    de4ac0012d52e054131b4d191d1c2e349880abe2133d60fc49b60cee379b8259f2f3ff81d729ab003d9cc307f46e6faa9c468c3f717f1c0712bebc3c1a090987

  • C:\Users\Admin\AppData\Local\Temp\7zS899.tmp\noapaiinmpmmhmleoeflhahihohjciml\content.js
    Filesize

    144B

    MD5

    fca19198fd8af21016a8b1dec7980002

    SHA1

    fd01a47d14004e17a625efe66cc46a06c786cf40

    SHA256

    332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

    SHA512

    60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

  • C:\Users\Admin\AppData\Local\Temp\7zS899.tmp\noapaiinmpmmhmleoeflhahihohjciml\lsdb.js
    Filesize

    531B

    MD5

    36d98318ab2b3b2585a30984db328afb

    SHA1

    f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

    SHA256

    ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

    SHA512

    6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

  • C:\Users\Admin\AppData\Local\Temp\7zS899.tmp\noapaiinmpmmhmleoeflhahihohjciml\manifest.json
    Filesize

    498B

    MD5

    640199ea4621e34510de919f6a54436f

    SHA1

    dc65dbfad02bd2688030bd56ca1cab85917a9937

    SHA256

    e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af

    SHA512

    d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a

  • C:\Users\Admin\AppData\Local\Temp\7zS899.tmp\[email protected]\bootstrap.js
    Filesize

    2KB

    MD5

    df13f711e20e9c80171846d4f2f7ae06

    SHA1

    56d29cda58427efe0e21d3880d39eb1b0ef60bee

    SHA256

    6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

    SHA512

    6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

  • C:\Users\Admin\AppData\Local\Temp\7zS899.tmp\[email protected]\chrome.manifest
    Filesize

    35B

    MD5

    ae428a72f4c30fe985e1b93d81d8818a

    SHA1

    feb3156b22d5e4afe3a9d85390808a6bf9ee826a

    SHA256

    bb65b955babffe107916926b370a8dff46bd8eff17ab96483cb4f8312978fabf

    SHA512

    46ec0168395e7d9dedff81578e9a6b60b18fd7a5e4174aff1858e5331a6b7f6c644d46a74d825be721968c43221b120b1babee62dc6b8951523ae4ce0e290594

  • C:\Users\Admin\AppData\Local\Temp\7zS899.tmp\[email protected]\content\bg.js
    Filesize

    7KB

    MD5

    54d39314ac198ac8673fa2b5be61ea27

    SHA1

    ce8cb92b7f5bf26eb8bf28e00d37f6c6e31e7c58

    SHA256

    df80b59e79c5878ba5d57143e8da6c2a1bc3e92bd62b10897f69e7d94260d82c

    SHA512

    74ef04428fcefe4cc3974049a97e87897b20b8b0ab9475510bc137abb7bf5af5ee6d2f70e8bef90b5b05e260cb3259ba7909d5c5ad5c0083ed569128bb46b85f

  • C:\Users\Admin\AppData\Local\Temp\7zS899.tmp\[email protected]\install.rdf
    Filesize

    594B

    MD5

    cf0f1b0f1a7b9b7079a70d9129639dae

    SHA1

    08e0454fb22ecdf733fffdbe121fe4d9dca12cc5

    SHA256

    58fd39f7bf1510053a975c2da651b817bacd603f0c6c51ba6524cca6abf17c8a

    SHA512

    0151e4cd2ee7dfb5d6aefa80e40fceefcf1c07a0f8523f57136b6ca9e3986a01c3e37f3e3cea503eb96da4ccd23134482adfb99737831cf6628a517dbfa8d98b

  • \Program Files (x86)\GoSave\CtAPwZ0FCoWfdv.dll
    Filesize

    748KB

    MD5

    c4836ef373cdfa7eac3738c59ae9fb83

    SHA1

    2f019c1b3357e3be378ac804acfc98ec4f80b576

    SHA256

    5c7ba1a9e0bf346f3b4baa8e6965981b0ff412eabc879ecc531e98f268c34e3e

    SHA512

    e459aeba63802639c8e7245afc139d86e75a805e14b90318b926ff00fe384d14ac209dc76fb88319218c89fe1562c737ed4c5847cd92e698d529ba6737c2fb4d

  • \Program Files (x86)\GoSave\CtAPwZ0FCoWfdv.x64.dll
    Filesize

    887KB

    MD5

    fe714aa952e86e33b2cc1652e0f7f6cb

    SHA1

    25927512b7bef5f0586f7edab4d4804ec43409aa

    SHA256

    c4fc97da6b3393137f1711238c3ac18d36f903d256a9205fd40e71b4c99ce579

    SHA512

    fe5ac276c14bf2f5e59a1c4acccb98404cbbbe0bceed92a69e5860445682c44d8575ef6926706b9d750bcbf8dca539503547c4f693a8b28cb2e3463760c2c5a7

  • \Program Files (x86)\GoSave\CtAPwZ0FCoWfdv.x64.dll
    Filesize

    887KB

    MD5

    fe714aa952e86e33b2cc1652e0f7f6cb

    SHA1

    25927512b7bef5f0586f7edab4d4804ec43409aa

    SHA256

    c4fc97da6b3393137f1711238c3ac18d36f903d256a9205fd40e71b4c99ce579

    SHA512

    fe5ac276c14bf2f5e59a1c4acccb98404cbbbe0bceed92a69e5860445682c44d8575ef6926706b9d750bcbf8dca539503547c4f693a8b28cb2e3463760c2c5a7

  • \Users\Admin\AppData\Local\Temp\7zS899.tmp\3ixRHsZV9ReuTL2.exe
    Filesize

    765KB

    MD5

    102dfa10cc29d7f1ded876dfd7274280

    SHA1

    f26e57d916bf7c5c3a4b49a2edaf30e945b0b44e

    SHA256

    67d9ee9e36b29e081ff2084dc488b0b6c4120e791a5c33ce6027cf89718e4bb3

    SHA512

    c3b7bb463873420f1582880308acca440c24fefaf45c9ad75319665e07c0f4548bd6fe07fabec48edd138a495a2607297773b16400e351e68a7462b45fb2c0c2

  • memory/880-56-0x0000000000000000-mapping.dmp
  • memory/1224-73-0x0000000000000000-mapping.dmp
  • memory/1428-54-0x0000000075071000-0x0000000075073000-memory.dmp
    Filesize

    8KB

  • memory/1532-77-0x0000000000000000-mapping.dmp
  • memory/1532-78-0x000007FEFB821000-0x000007FEFB823000-memory.dmp
    Filesize

    8KB