Analysis

  • max time kernel
    117s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12-01-2025 20:36

General

  • Target

    6af9b80cc989b63bf1dde6de43dc0c071ad1bc4024f345f360ca3210cbfe08aeN.exe

  • Size

    949KB

  • MD5

    21bcab5efd79c3f77ee3f4f296802b40

  • SHA1

    43c00ff8cc1feab41db50b0414d880c4791d71c7

  • SHA256

    6af9b80cc989b63bf1dde6de43dc0c071ad1bc4024f345f360ca3210cbfe08ae

  • SHA512

    f9de019e149a1cc9509cd4e02331b8bd18933f4aa64c87ee329a42f4c74fbd1f262372e73fb900d7f5c5cd6923e8de67807ff8b8ec53e944d0528d2a3ecd5a00

  • SSDEEP

    12288:MMgBm/G6nO/d3AFQIy3vfWEYO7fIO3akyKroQBWhezi0dVE1+K:MUrQIAfWO7rakyKr1BWhe/dVE1+K

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 7 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).

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 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 behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6af9b80cc989b63bf1dde6de43dc0c071ad1bc4024f345f360ca3210cbfe08aeN.exe
    "C:\Users\Admin\AppData\Local\Temp\6af9b80cc989b63bf1dde6de43dc0c071ad1bc4024f345f360ca3210cbfe08aeN.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:2244
    • C:\Users\Admin\AppData\Local\Temp\3582-490\6af9b80cc989b63bf1dde6de43dc0c071ad1bc4024f345f360ca3210cbfe08aeN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\6af9b80cc989b63bf1dde6de43dc0c071ad1bc4024f345f360ca3210cbfe08aeN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2776
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2776 -s 580
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:2392

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\6af9b80cc989b63bf1dde6de43dc0c071ad1bc4024f345f360ca3210cbfe08aeN.exe

    Filesize

    908KB

    MD5

    b3f73a1979a9415ebaf825382801dad0

    SHA1

    4c67011c8a40fe889141c7a95c82b11807271099

    SHA256

    b57d1ffadc1f755eb6bb524ffe249f71d6e216cbaaa1e40533c92ea9edb74bdc

    SHA512

    d700811740353b03a4400a9aa1bc2a9f0ef025d3328251ea1cb4e69032222fbac870244887ca4937cf7743fd52d8816879e8c55d8947793b72986af70fb42218

  • memory/2244-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2244-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2776-12-0x000000007445E000-0x000000007445F000-memory.dmp

    Filesize

    4KB

  • memory/2776-13-0x00000000012B0000-0x000000000139A000-memory.dmp

    Filesize

    936KB

  • memory/2776-14-0x0000000074450000-0x0000000074B3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2776-92-0x0000000074450000-0x0000000074B3E000-memory.dmp

    Filesize

    6.9MB