Analysis

  • max time kernel
    81s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    18-12-2024 07:19

General

  • Target

    3ec69edfe6296cd2e4e92c42b14b250c3b4ba81bde92a1251234edd2c86a8674N.exe

  • Size

    1.5MB

  • MD5

    504f4094d8279d2fdd6a7804d5b752e0

  • SHA1

    fa51fc57e74821244432fa401060ea0f31e4b02e

  • SHA256

    3ec69edfe6296cd2e4e92c42b14b250c3b4ba81bde92a1251234edd2c86a8674

  • SHA512

    cce910a06b28f196c1991e8eb0650e2de78455a74449de6764009be967e6290b6478004740dc54f9833b65799eaa6f068c3852f4769c14f9b675eec46c4f3cb8

  • SSDEEP

    49152:MbwdlPMoiO/xKkI0S+4TP2zpEomBIyeH8t:Mb1OpKkI0qTP2z+YHs

Malware Config

Signatures

  • Detect Neshta payload 3 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Modifies system certificate store 2 TTPs 13 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3ec69edfe6296cd2e4e92c42b14b250c3b4ba81bde92a1251234edd2c86a8674N.exe
    "C:\Users\Admin\AppData\Local\Temp\3ec69edfe6296cd2e4e92c42b14b250c3b4ba81bde92a1251234edd2c86a8674N.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2748
    • C:\Users\Admin\AppData\Local\Temp\3582-490\3ec69edfe6296cd2e4e92c42b14b250c3b4ba81bde92a1251234edd2c86a8674N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\3ec69edfe6296cd2e4e92c42b14b250c3b4ba81bde92a1251234edd2c86a8674N.exe"
      2⤵
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Writes to the Master Boot Record (MBR)
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies system certificate store
      PID:2788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8A4AA6A226E1870F0261713C59F1CB84

    Filesize

    983B

    MD5

    42f8529fe545103fdd848980a8647f29

    SHA1

    ca7788c32da1e4b7863a4fb57d00b55ddacbc7f9

    SHA256

    a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea

    SHA512

    1a3994c12d65e9c96b4c4ebcf79e8b291b620177520a7d0482a2b6043dd150a9f2ce1627d130309390e3ac6be98af5f2b50c1993c478976d0c9a9638c46a61bd

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    d4018e15a673e347008d42de6a12bd8b

    SHA1

    13cc49a465bf02831a53cfd14468302d97da9690

    SHA256

    abc13f0c2e54734117f538e7a1f80770688c4e0b91cab78299ae6f0606e5927f

    SHA512

    e046b480614605b355c236892101a1d40a1f6166427c5c12376dc6c79f7d15dc0ebd346343d85cbc89ef2b88d2073e4228a356a06ca79484269e1176eded08b2

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    17a7b8466990066578662b5792c0c9ae

    SHA1

    917c7dec8ca83535138b77d0747e3420f426075d

    SHA256

    e930e65680e824a4e84923a1ca710d2e22c165b266657d61a7ffa526bd054b80

    SHA512

    a1d3c94762922aece536e39e9d656e2cf1ee6e80f21f440dfec8746ceff529faf973b63af15e31c2af3f6d7c82922264815cc6eb33cc95ce2742f67750679724

  • C:\Users\Admin\AppData\Local\Temp\CabFA58.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarFA7A.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\3ec69edfe6296cd2e4e92c42b14b250c3b4ba81bde92a1251234edd2c86a8674N.exe

    Filesize

    1.5MB

    MD5

    babee51ef9a02240515188921445ccd0

    SHA1

    4e4336a1f713f856642824fd091e94f122815309

    SHA256

    742bcf88a9ce092a376a310410e708ea299f9ab79cdd5ea3731bdaa1be3b77ee

    SHA512

    42d0d3f270eedf493e047fe3fb23c05371ac7567e4548d7084b0d2788e5e902798a61655dc332709e7d9edc7ad8c97ebd963d4c9d47541def9bfa092befdac44

  • memory/2748-18-0x0000000002C90000-0x0000000003009000-memory.dmp

    Filesize

    3.5MB

  • memory/2748-439-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2748-437-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2748-436-0x0000000002C90000-0x0000000003009000-memory.dmp

    Filesize

    3.5MB

  • memory/2788-33-0x0000000005160000-0x0000000005186000-memory.dmp

    Filesize

    152KB

  • memory/2788-10-0x00000000008C0000-0x00000000009ED000-memory.dmp

    Filesize

    1.2MB

  • memory/2788-22-0x0000000004750000-0x00000000047D6000-memory.dmp

    Filesize

    536KB

  • memory/2788-23-0x00000000047E0000-0x00000000047F7000-memory.dmp

    Filesize

    92KB

  • memory/2788-24-0x0000000004850000-0x0000000004864000-memory.dmp

    Filesize

    80KB

  • memory/2788-25-0x00000000049C0000-0x00000000049D4000-memory.dmp

    Filesize

    80KB

  • memory/2788-26-0x00000000049E0000-0x0000000004AC2000-memory.dmp

    Filesize

    904KB

  • memory/2788-27-0x0000000004AD0000-0x0000000004AF7000-memory.dmp

    Filesize

    156KB

  • memory/2788-29-0x0000000004BC0000-0x0000000004C15000-memory.dmp

    Filesize

    340KB

  • memory/2788-32-0x00000000050E0000-0x00000000050FB000-memory.dmp

    Filesize

    108KB

  • memory/2788-31-0x00000000050C0000-0x00000000050DE000-memory.dmp

    Filesize

    120KB

  • memory/2788-30-0x0000000004A30000-0x0000000004A47000-memory.dmp

    Filesize

    92KB

  • memory/2788-8-0x0000000000610000-0x00000000006AF000-memory.dmp

    Filesize

    636KB

  • memory/2788-36-0x0000000005640000-0x000000000565A000-memory.dmp

    Filesize

    104KB

  • memory/2788-34-0x00000000055A0000-0x00000000055F2000-memory.dmp

    Filesize

    328KB

  • memory/2788-44-0x0000000005600000-0x0000000005657000-memory.dmp

    Filesize

    348KB

  • memory/2788-43-0x0000000004FB0000-0x0000000004FBA000-memory.dmp

    Filesize

    40KB

  • memory/2788-46-0x0000000005B10000-0x0000000005B2A000-memory.dmp

    Filesize

    104KB

  • memory/2788-9-0x00000000000E0000-0x00000000000FF000-memory.dmp

    Filesize

    124KB

  • memory/2788-21-0x0000000003DE0000-0x0000000003E79000-memory.dmp

    Filesize

    612KB

  • memory/2788-78-0x0000000007360000-0x00000000073C4000-memory.dmp

    Filesize

    400KB

  • memory/2788-77-0x0000000005DB0000-0x0000000005E21000-memory.dmp

    Filesize

    452KB

  • memory/2788-79-0x0000000005BC0000-0x0000000005BD8000-memory.dmp

    Filesize

    96KB

  • memory/2788-13-0x00000000006B0000-0x00000000006D2000-memory.dmp

    Filesize

    136KB

  • memory/2788-89-0x0000000005E30000-0x0000000005E4A000-memory.dmp

    Filesize

    104KB

  • memory/2788-14-0x0000000000C60000-0x0000000000D29000-memory.dmp

    Filesize

    804KB

  • memory/2788-15-0x0000000000D30000-0x0000000000DA1000-memory.dmp

    Filesize

    452KB

  • memory/2788-354-0x00000000065E0000-0x00000000065FA000-memory.dmp

    Filesize

    104KB

  • memory/2788-337-0x0000000006290000-0x00000000062AA000-memory.dmp

    Filesize

    104KB

  • memory/2788-17-0x0000000001050000-0x0000000001265000-memory.dmp

    Filesize

    2.1MB

  • memory/2788-366-0x0000000006A20000-0x0000000006A3A000-memory.dmp

    Filesize

    104KB

  • memory/2788-373-0x0000000005E50000-0x0000000005E6A000-memory.dmp

    Filesize

    104KB

  • memory/2788-433-0x00000000051A0000-0x0000000005301000-memory.dmp

    Filesize

    1.4MB

  • memory/2788-435-0x0000000000100000-0x0000000000479000-memory.dmp

    Filesize

    3.5MB

  • memory/2788-20-0x0000000000100000-0x0000000000479000-memory.dmp

    Filesize

    3.5MB

  • memory/2788-19-0x00000000026B0000-0x00000000027B9000-memory.dmp

    Filesize

    1.0MB

  • memory/2788-16-0x0000000000F20000-0x0000000001045000-memory.dmp

    Filesize

    1.1MB