Analysis

  • max time kernel
    58s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 19:24

General

  • Target

    c80638141c3f1b9d62108c0670dbbf65900899f35e542f1b57708b7e12df2ff8.exe

  • Size

    2.5MB

  • MD5

    35e71beae5ddcbfa0f24117453326d4a

  • SHA1

    7572e2c926b1e823a94ec27c8e7910d6cfd75239

  • SHA256

    c80638141c3f1b9d62108c0670dbbf65900899f35e542f1b57708b7e12df2ff8

  • SHA512

    ab47c0387885f5d0224794b17147df941ed7f7ffddcba278b8f19e813569c56eb82b9edf815b0e922305b6b5607e695ca5044f3a38c84994a2770d3d73061c5a

  • SSDEEP

    49152:h1OsF+QK3xQpjajXKioFMpYphqd3ArqvFUmEaDxEAxh4UR9TEe:h1ObQCjbKioVg3ArKh407

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\c80638141c3f1b9d62108c0670dbbf65900899f35e542f1b57708b7e12df2ff8.exe
    "C:\Users\Admin\AppData\Local\Temp\c80638141c3f1b9d62108c0670dbbf65900899f35e542f1b57708b7e12df2ff8.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1728
    • C:\Users\Admin\AppData\Local\Temp\7zSAFA.tmp\KHIekdDVuOWNZzK.exe
      .\KHIekdDVuOWNZzK.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:276
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Program Files (x86)\GoSave\FLYapzT82fyopB.x64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1364
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\GoSave\FLYapzT82fyopB.x64.dll"
          4⤵
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          PID:1168

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\FLYapzT82fyopB.dat
    Filesize

    6KB

    MD5

    3279671fae3c21b87b10c00089742a81

    SHA1

    6b09c70d73b2cc1290b4b7e14916ab2bddac7104

    SHA256

    3cdbf41f8ab9362b012f7c5c538d841473c74817dfbbfd92cbe29a52667bd860

    SHA512

    c876e14ccd941f6fb87a1f4e269b92b662b08c383a7cee60825bcd58b1fd62094395dbb7731aa112a91bdb4d54b0eeb1823d61b76dd29ebcd922bc1d84550526

  • C:\Program Files (x86)\GoSave\FLYapzT82fyopB.x64.dll
    Filesize

    887KB

    MD5

    fe714aa952e86e33b2cc1652e0f7f6cb

    SHA1

    25927512b7bef5f0586f7edab4d4804ec43409aa

    SHA256

    c4fc97da6b3393137f1711238c3ac18d36f903d256a9205fd40e71b4c99ce579

    SHA512

    fe5ac276c14bf2f5e59a1c4acccb98404cbbbe0bceed92a69e5860445682c44d8575ef6926706b9d750bcbf8dca539503547c4f693a8b28cb2e3463760c2c5a7

  • C:\Users\Admin\AppData\Local\Temp\7zSAFA.tmp\FLYapzT82fyopB.dll
    Filesize

    748KB

    MD5

    c4836ef373cdfa7eac3738c59ae9fb83

    SHA1

    2f019c1b3357e3be378ac804acfc98ec4f80b576

    SHA256

    5c7ba1a9e0bf346f3b4baa8e6965981b0ff412eabc879ecc531e98f268c34e3e

    SHA512

    e459aeba63802639c8e7245afc139d86e75a805e14b90318b926ff00fe384d14ac209dc76fb88319218c89fe1562c737ed4c5847cd92e698d529ba6737c2fb4d

  • C:\Users\Admin\AppData\Local\Temp\7zSAFA.tmp\FLYapzT82fyopB.tlb
    Filesize

    3KB

    MD5

    f461159d95e1a49a534ad0320ff3984b

    SHA1

    e3363285437846f046b126adbcd8e4789aa1f486

    SHA256

    d6967480d6f6fd4b9d31fb7e38ee6f04c76c36edd2795f852ec3938d984993d6

    SHA512

    2a12587d4a69c967771d8b4ed43e857a81899e177d5ec8ddf8365eaa4e8752032fac8d25b5c3a89ae5efc82b4c6dfd4ba2d26e998b3ad95cc8fdc6ef0c7416ed

  • C:\Users\Admin\AppData\Local\Temp\7zSAFA.tmp\FLYapzT82fyopB.x64.dll
    Filesize

    887KB

    MD5

    fe714aa952e86e33b2cc1652e0f7f6cb

    SHA1

    25927512b7bef5f0586f7edab4d4804ec43409aa

    SHA256

    c4fc97da6b3393137f1711238c3ac18d36f903d256a9205fd40e71b4c99ce579

    SHA512

    fe5ac276c14bf2f5e59a1c4acccb98404cbbbe0bceed92a69e5860445682c44d8575ef6926706b9d750bcbf8dca539503547c4f693a8b28cb2e3463760c2c5a7

  • C:\Users\Admin\AppData\Local\Temp\7zSAFA.tmp\KHIekdDVuOWNZzK.dat
    Filesize

    6KB

    MD5

    3279671fae3c21b87b10c00089742a81

    SHA1

    6b09c70d73b2cc1290b4b7e14916ab2bddac7104

    SHA256

    3cdbf41f8ab9362b012f7c5c538d841473c74817dfbbfd92cbe29a52667bd860

    SHA512

    c876e14ccd941f6fb87a1f4e269b92b662b08c383a7cee60825bcd58b1fd62094395dbb7731aa112a91bdb4d54b0eeb1823d61b76dd29ebcd922bc1d84550526

  • C:\Users\Admin\AppData\Local\Temp\7zSAFA.tmp\KHIekdDVuOWNZzK.exe
    Filesize

    765KB

    MD5

    102dfa10cc29d7f1ded876dfd7274280

    SHA1

    f26e57d916bf7c5c3a4b49a2edaf30e945b0b44e

    SHA256

    67d9ee9e36b29e081ff2084dc488b0b6c4120e791a5c33ce6027cf89718e4bb3

    SHA512

    c3b7bb463873420f1582880308acca440c24fefaf45c9ad75319665e07c0f4548bd6fe07fabec48edd138a495a2607297773b16400e351e68a7462b45fb2c0c2

  • C:\Users\Admin\AppData\Local\Temp\7zSAFA.tmp\KHIekdDVuOWNZzK.exe
    Filesize

    765KB

    MD5

    102dfa10cc29d7f1ded876dfd7274280

    SHA1

    f26e57d916bf7c5c3a4b49a2edaf30e945b0b44e

    SHA256

    67d9ee9e36b29e081ff2084dc488b0b6c4120e791a5c33ce6027cf89718e4bb3

    SHA512

    c3b7bb463873420f1582880308acca440c24fefaf45c9ad75319665e07c0f4548bd6fe07fabec48edd138a495a2607297773b16400e351e68a7462b45fb2c0c2

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

    2KB

    MD5

    df13f711e20e9c80171846d4f2f7ae06

    SHA1

    56d29cda58427efe0e21d3880d39eb1b0ef60bee

    SHA256

    6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

    SHA512

    6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

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

    35B

    MD5

    11c38f5d143f7f482446d50bc3277c12

    SHA1

    e698efa036410db86345da9cca068706189a779b

    SHA256

    75a76401e7e203b39cc8bb97f0b0668f5600e0b9638b7d4ce19558557cd2be03

    SHA512

    a38a059b5d0159eff7bef182846a0413537733ffe5d7ad1f63f4d25cf93aca7aa240a2ac344fa34c73037101b26bb277fb1bc7f2939ff64571ff6061665db612

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

    7KB

    MD5

    9a415a5d273cd33c522d0063dfc6c483

    SHA1

    5af08121912ab341ca5528ad96dd220c7d557107

    SHA256

    8cc94aa49e16d940bc459008a81c4a5de5072453d227b28ca3bf4336c9334d3f

    SHA512

    f90b99476e373d97b8355be0feb159bdb7a897fcdfcd1319981a6872b61da00bc70480e01d43f83cbc84734815dcb969431dde041a2ed844b6df4f2ec4b55c79

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

    596B

    MD5

    4fdc9eb128125951456947da5b2219cd

    SHA1

    6668703c842dbf8dd3eb067978eb92cd055d7303

    SHA256

    23ef01f697e716ebf359d559a14167a4321732902a99ab1cb45b7cc1cbdadb52

    SHA512

    e9b7462f10fcd4bc75bb571bc0adb2121cc2de84e96f29b4513a78b758f6e2cf7d83f7616c8a36e77e7d9e801be4bab3566d779412e255bc14f49414770807db

  • C:\Users\Admin\AppData\Local\Temp\7zSAFA.tmp\femmcmmemnilmflejlpcoaecklpndhll\background.html
    Filesize

    139B

    MD5

    1d4f871524b82cc9270ef79d8a7ef669

    SHA1

    bff666cfba8479aa7dd1d5b35e17247f4d7732af

    SHA256

    814ff5532d81e20a3e5c377b4ec4ec452484346338da74900cd67106a533d218

    SHA512

    821e60e87c3e4940184e3e987b57fa477fc15bddc01860e78b2dfa78cfac7363ff338c5ceaf7082bbcb8b0998b123f8a743aee15def016fc20c1067c9aa6a39b

  • C:\Users\Admin\AppData\Local\Temp\7zSAFA.tmp\femmcmmemnilmflejlpcoaecklpndhll\content.js
    Filesize

    144B

    MD5

    fca19198fd8af21016a8b1dec7980002

    SHA1

    fd01a47d14004e17a625efe66cc46a06c786cf40

    SHA256

    332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

    SHA512

    60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

  • C:\Users\Admin\AppData\Local\Temp\7zSAFA.tmp\femmcmmemnilmflejlpcoaecklpndhll\hZ.js
    Filesize

    5KB

    MD5

    209bc4baac5a2cd26d5d31e7a2136575

    SHA1

    136f28404530535196bacac04b918525990f8868

    SHA256

    f05543375939d222f84bb01dee76db7e8b99eeda0793b9ffe5a8615b0e145539

    SHA512

    e925c3d6aaed33f47dc14a1694fc4e4f30cf6df5ffa642adb4592cbc38dc939cfa967cd811c28f7f89f70431123db66cce15304e44fbc9f51b589167c3ae3e94

  • C:\Users\Admin\AppData\Local\Temp\7zSAFA.tmp\femmcmmemnilmflejlpcoaecklpndhll\lsdb.js
    Filesize

    531B

    MD5

    36d98318ab2b3b2585a30984db328afb

    SHA1

    f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

    SHA256

    ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

    SHA512

    6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

  • C:\Users\Admin\AppData\Local\Temp\7zSAFA.tmp\femmcmmemnilmflejlpcoaecklpndhll\manifest.json
    Filesize

    498B

    MD5

    640199ea4621e34510de919f6a54436f

    SHA1

    dc65dbfad02bd2688030bd56ca1cab85917a9937

    SHA256

    e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af

    SHA512

    d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a

  • \Program Files (x86)\GoSave\FLYapzT82fyopB.dll
    Filesize

    748KB

    MD5

    c4836ef373cdfa7eac3738c59ae9fb83

    SHA1

    2f019c1b3357e3be378ac804acfc98ec4f80b576

    SHA256

    5c7ba1a9e0bf346f3b4baa8e6965981b0ff412eabc879ecc531e98f268c34e3e

    SHA512

    e459aeba63802639c8e7245afc139d86e75a805e14b90318b926ff00fe384d14ac209dc76fb88319218c89fe1562c737ed4c5847cd92e698d529ba6737c2fb4d

  • \Program Files (x86)\GoSave\FLYapzT82fyopB.x64.dll
    Filesize

    887KB

    MD5

    fe714aa952e86e33b2cc1652e0f7f6cb

    SHA1

    25927512b7bef5f0586f7edab4d4804ec43409aa

    SHA256

    c4fc97da6b3393137f1711238c3ac18d36f903d256a9205fd40e71b4c99ce579

    SHA512

    fe5ac276c14bf2f5e59a1c4acccb98404cbbbe0bceed92a69e5860445682c44d8575ef6926706b9d750bcbf8dca539503547c4f693a8b28cb2e3463760c2c5a7

  • \Program Files (x86)\GoSave\FLYapzT82fyopB.x64.dll
    Filesize

    887KB

    MD5

    fe714aa952e86e33b2cc1652e0f7f6cb

    SHA1

    25927512b7bef5f0586f7edab4d4804ec43409aa

    SHA256

    c4fc97da6b3393137f1711238c3ac18d36f903d256a9205fd40e71b4c99ce579

    SHA512

    fe5ac276c14bf2f5e59a1c4acccb98404cbbbe0bceed92a69e5860445682c44d8575ef6926706b9d750bcbf8dca539503547c4f693a8b28cb2e3463760c2c5a7

  • \Users\Admin\AppData\Local\Temp\7zSAFA.tmp\KHIekdDVuOWNZzK.exe
    Filesize

    765KB

    MD5

    102dfa10cc29d7f1ded876dfd7274280

    SHA1

    f26e57d916bf7c5c3a4b49a2edaf30e945b0b44e

    SHA256

    67d9ee9e36b29e081ff2084dc488b0b6c4120e791a5c33ce6027cf89718e4bb3

    SHA512

    c3b7bb463873420f1582880308acca440c24fefaf45c9ad75319665e07c0f4548bd6fe07fabec48edd138a495a2607297773b16400e351e68a7462b45fb2c0c2

  • memory/276-56-0x0000000000000000-mapping.dmp
  • memory/1168-77-0x0000000000000000-mapping.dmp
  • memory/1168-78-0x000007FEFC191000-0x000007FEFC193000-memory.dmp
    Filesize

    8KB

  • memory/1364-73-0x0000000000000000-mapping.dmp
  • memory/1728-54-0x0000000075FF1000-0x0000000075FF3000-memory.dmp
    Filesize

    8KB