Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    18-12-2024 02:48

General

  • Target

    03b53fccd9b180a54fee773d9a0e4b67b1b2252b0ef4cd81f2dfe40d55143cd0N.exe

  • Size

    669KB

  • MD5

    6ca4e3b3b5b11440df5f9169da8760e0

  • SHA1

    726a691a8c9e16c3ecc137cfd75f58fa899e5e38

  • SHA256

    03b53fccd9b180a54fee773d9a0e4b67b1b2252b0ef4cd81f2dfe40d55143cd0

  • SHA512

    0405028151657bf416e1ace6f825595a1d8b041aa60f7108a576af2a03b5fa549f64032b4b83d1dd4f165a9ddff3c24bab4683f41f42cf76ec377238acc063cb

  • SSDEEP

    6144:k9FCHFhNi2UziUPeWqlRoI7WVWv3603SqeOjo8MgLr8ofi:6CHT42wi1FRT7Tvq03S1OjMgPi

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
  • Executes dropped EXE 1 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.

  • 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\03b53fccd9b180a54fee773d9a0e4b67b1b2252b0ef4cd81f2dfe40d55143cd0N.exe
    "C:\Users\Admin\AppData\Local\Temp\03b53fccd9b180a54fee773d9a0e4b67b1b2252b0ef4cd81f2dfe40d55143cd0N.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:2176
    • C:\Users\Admin\AppData\Local\Temp\3582-490\03b53fccd9b180a54fee773d9a0e4b67b1b2252b0ef4cd81f2dfe40d55143cd0N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\03b53fccd9b180a54fee773d9a0e4b67b1b2252b0ef4cd81f2dfe40d55143cd0N.exe"
      2⤵
      • Executes dropped EXE
      PID:2388

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

  • \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\03b53fccd9b180a54fee773d9a0e4b67b1b2252b0ef4cd81f2dfe40d55143cd0N.exe

    Filesize

    629KB

    MD5

    17eff7b80a7548c32e1a4b9034fd8f01

    SHA1

    8072fa50dc2b59df1fb950cfbc02c0e06d929d91

    SHA256

    92d9a00b73eda06e0efc95b6c724e3fc98aedb92fe1c3c4fc56190276b4f8bf6

    SHA512

    16895ae654497bd0364708741c5723a4881812a2d5fa1ea2b4d1931c566f14d8bc5b4fe31fdeb2fd7ba75639ba15eab08b2b4509fe9ac50a91b3ba5b4954159f

  • memory/2176-82-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2176-84-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB