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Resubmissions

14/11/2023, 17:31

231114-v3qg7acf42 10

14/11/2023, 17:21

231114-vxdw7sdg61 10

28/10/2023, 19:29

231028-x7cs1age56 10

24/10/2023, 13:29

231024-qrn3rsdb6z 10

18/10/2023, 12:04

231018-n8ybnaeb31 10

07/09/2023, 12:10

230907-pce1wahe2x 10

Analysis

  • max time kernel
    29s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    07/09/2023, 12:10

General

  • Target

    96f2bcea04abecb6ba4e87bb6cd62beb439882a9bb013fa12def110ea3335528.exe

  • Size

    448KB

  • MD5

    ad53609d80259f7f329bf724c55a3ee7

  • SHA1

    71dac241fb99cde30fc2feae60483c479f96b174

  • SHA256

    96f2bcea04abecb6ba4e87bb6cd62beb439882a9bb013fa12def110ea3335528

  • SHA512

    83f972453bcc65afd8944a5a28190c8289aa02329e22bdc9170b2a1d0c3947086f6dd10e4cb1d28bf20d8d279a9013ec9861abafa265923821454c5a9221996e

  • SSDEEP

    12288:ON9ugSNkvm9f+MgvLwabghCE2SN7YDaLsz6J7yCXjmZfMc3ed/37z0M/n/sCbMe2:1OSN7YDaLsWJ7yimGn/sCE

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.

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

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

  • 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).

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\96f2bcea04abecb6ba4e87bb6cd62beb439882a9bb013fa12def110ea3335528.exe
    "C:\Users\Admin\AppData\Local\Temp\96f2bcea04abecb6ba4e87bb6cd62beb439882a9bb013fa12def110ea3335528.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1312
    • C:\Users\Admin\AppData\Local\Temp\3582-490\96f2bcea04abecb6ba4e87bb6cd62beb439882a9bb013fa12def110ea3335528.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\96f2bcea04abecb6ba4e87bb6cd62beb439882a9bb013fa12def110ea3335528.exe"
      2⤵
      • Executes dropped EXE
      PID:2172

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\Local\Temp\3582-490\96f2bcea04abecb6ba4e87bb6cd62beb439882a9bb013fa12def110ea3335528.exe

    Filesize

    408KB

    MD5

    f866509bb775b77b593bc831d3f5a238

    SHA1

    46e0be4667e3eed77227e58192817a960f2ef58b

    SHA256

    88777558b5b6d03679c012a1d29a72c257e43081d6d45f5e75b542db4cd578f2

    SHA512

    a97385bf76d1639cb49022584f62aa5ecc5a425e2ea87920eb5ed4902cc4583cfd3cf404cc2927d94ce158599b1ffe720fae204c89fcd60b7b9efe5d8e7d9a70

  • C:\Users\Admin\AppData\Local\Temp\3582-490\96f2bcea04abecb6ba4e87bb6cd62beb439882a9bb013fa12def110ea3335528.exe

    Filesize

    408KB

    MD5

    f866509bb775b77b593bc831d3f5a238

    SHA1

    46e0be4667e3eed77227e58192817a960f2ef58b

    SHA256

    88777558b5b6d03679c012a1d29a72c257e43081d6d45f5e75b542db4cd578f2

    SHA512

    a97385bf76d1639cb49022584f62aa5ecc5a425e2ea87920eb5ed4902cc4583cfd3cf404cc2927d94ce158599b1ffe720fae204c89fcd60b7b9efe5d8e7d9a70

  • \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\96f2bcea04abecb6ba4e87bb6cd62beb439882a9bb013fa12def110ea3335528.exe

    Filesize

    408KB

    MD5

    f866509bb775b77b593bc831d3f5a238

    SHA1

    46e0be4667e3eed77227e58192817a960f2ef58b

    SHA256

    88777558b5b6d03679c012a1d29a72c257e43081d6d45f5e75b542db4cd578f2

    SHA512

    a97385bf76d1639cb49022584f62aa5ecc5a425e2ea87920eb5ed4902cc4583cfd3cf404cc2927d94ce158599b1ffe720fae204c89fcd60b7b9efe5d8e7d9a70

  • \Users\Admin\AppData\Local\Temp\3582-490\96f2bcea04abecb6ba4e87bb6cd62beb439882a9bb013fa12def110ea3335528.exe

    Filesize

    408KB

    MD5

    f866509bb775b77b593bc831d3f5a238

    SHA1

    46e0be4667e3eed77227e58192817a960f2ef58b

    SHA256

    88777558b5b6d03679c012a1d29a72c257e43081d6d45f5e75b542db4cd578f2

    SHA512

    a97385bf76d1639cb49022584f62aa5ecc5a425e2ea87920eb5ed4902cc4583cfd3cf404cc2927d94ce158599b1ffe720fae204c89fcd60b7b9efe5d8e7d9a70

  • memory/1312-14-0x0000000002850000-0x00000000049C0000-memory.dmp

    Filesize

    33.4MB

  • memory/1312-15-0x0000000002850000-0x00000000049C0000-memory.dmp

    Filesize

    33.4MB

  • memory/1312-89-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1312-90-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2172-16-0x0000000001400000-0x0000000003570000-memory.dmp

    Filesize

    33.4MB