Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    04-01-2025 20:27

General

  • Target

    e1ab160801cb6af8eae6c30ee41814a2cbfe29fe1c0eee086b9b36bd310e8549N.exe

  • Size

    160KB

  • MD5

    f91d309aec5b0dde35534b7555b7d750

  • SHA1

    78ba4e67482b8c471afb29d4790dd38c3fffaab1

  • SHA256

    e1ab160801cb6af8eae6c30ee41814a2cbfe29fe1c0eee086b9b36bd310e8549

  • SHA512

    b23236505807d8809a51ee332c2f04b01f5181382fc288a3d3105f3ae9c63cacb4ac56fd71867318519886cfa80d1e24df455213922da79bc2bd19f5d38f000c

  • SSDEEP

    3072:sr85CSjEU6z48Xlxhhvh1+uL9XUpFykymkNu5gxH4+K:k9qE/z48Xlxhhvh1+uL9kpFyky5NO

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\e1ab160801cb6af8eae6c30ee41814a2cbfe29fe1c0eee086b9b36bd310e8549N.exe
    "C:\Users\Admin\AppData\Local\Temp\e1ab160801cb6af8eae6c30ee41814a2cbfe29fe1c0eee086b9b36bd310e8549N.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:2468
    • C:\Users\Admin\AppData\Local\Temp\3582-490\e1ab160801cb6af8eae6c30ee41814a2cbfe29fe1c0eee086b9b36bd310e8549N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\e1ab160801cb6af8eae6c30ee41814a2cbfe29fe1c0eee086b9b36bd310e8549N.exe"
      2⤵
      • Executes dropped EXE
      PID:1244

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\e1ab160801cb6af8eae6c30ee41814a2cbfe29fe1c0eee086b9b36bd310e8549N.exe

    Filesize

    120KB

    MD5

    38018a1b421b84317322062ef51d1313

    SHA1

    0d8b71daf1579eaa8dbf72157e9db45e419b6760

    SHA256

    459a60bcd07f8ec9633267137a059b0102564fc9af41385a55256a9fde7d75c2

    SHA512

    fa10824c90ab262f0253ca3f2d148b2aaf76bc05f159c13c8e402dafd457fa41ef3fe2d57548224bedc58fb5e23d29955bae300a42f93a4dd6d2d9f8ed4e51b0

  • memory/2468-82-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2468-84-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB