Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    30-05-2023 09:22

General

  • Target

    e615a06c4539fc5fabedd46658fdc2ff534d0173f9043162f3809ef3002f0a2c.exe

  • Size

    781KB

  • MD5

    5ddfbddf74d9e09bf434940362019979

  • SHA1

    595d69d9fc35b83cd8d6567e88ab6526582576e4

  • SHA256

    e615a06c4539fc5fabedd46658fdc2ff534d0173f9043162f3809ef3002f0a2c

  • SHA512

    6fcf4f5c573986cf5ae881812bf692a4d76683d636e4a7211111fc37f11e7ac8998dc98177b3efbbbf36ffd61346fa0aa5853231ee8337816ab7585ee4b9b693

  • SSDEEP

    12288:fClBbX5Ty5syL0CR8gotz/S31L/5C9RJl7ICfLcpy:faUxLPigotulL/I9RACfLco

Malware Config

Extracted

Family

limerat

Wallets

1LLUV51XQKqq94X965Cc6uGPXeZEGSqCdV

Attributes
  • aes_key

    NYANCAT

  • antivm

    false

  • c2_url

    https://pastebin.com/raw/4pByu6u5

  • delay

    3

  • download_payload

    false

  • install

    false

  • install_name

    Wservices.exe

  • main_folder

    AppData

  • pin_spread

    false

  • sub_folder

    \

  • usb_spread

    true

Signatures

  • Detect Neshta payload 8 IoCs
  • LimeRAT

    Simple yet powerful RAT for Windows machines written in .NET.

  • Neshta

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

  • Executes dropped EXE 3 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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e615a06c4539fc5fabedd46658fdc2ff534d0173f9043162f3809ef3002f0a2c.exe
    "C:\Users\Admin\AppData\Local\Temp\e615a06c4539fc5fabedd46658fdc2ff534d0173f9043162f3809ef3002f0a2c.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:2024
    • C:\Users\Admin\AppData\Local\Temp\3582-490\e615a06c4539fc5fabedd46658fdc2ff534d0173f9043162f3809ef3002f0a2c.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\e615a06c4539fc5fabedd46658fdc2ff534d0173f9043162f3809ef3002f0a2c.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1752
      • C:\Windows\svchost.com
        "C:\Windows\svchost.com" "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UGrisULjKfvkUY" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC340.tmp"
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:432
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\System32\schtasks.exe /Create /TN Updates\UGrisULjKfvkUY /XML C:\Users\Admin\AppData\Local\Temp\tmpC340.tmp
          4⤵
          • Creates scheduled task(s)
          PID:1860
      • C:\Users\Admin\AppData\Local\Temp\3582-490\e615a06c4539fc5fabedd46658fdc2ff534d0173f9043162f3809ef3002f0a2c.exe
        "C:\Users\Admin\AppData\Local\Temp\3582-490\e615a06c4539fc5fabedd46658fdc2ff534d0173f9043162f3809ef3002f0a2c.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1100

Network

MITRE ATT&CK Enterprise v6

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\e615a06c4539fc5fabedd46658fdc2ff534d0173f9043162f3809ef3002f0a2c.exe

    Filesize

    741KB

    MD5

    ad7fab95d903b025ebd5a36a8d7e06a6

    SHA1

    66faf0fe2a065f5c6c1701fe9c52e3f2ef677a51

    SHA256

    4617466868abd96c612df835281b02512cba8e21b72be5eaaf817be02996c897

    SHA512

    7c4294ff917e4e8507503b366c4cc7956a73cef38984d783888b07257246f09a9c5e6ceb8fd731c365ffa245f39299a6e366bacb5e7e8c6da03604992ca4406d

  • C:\Users\Admin\AppData\Local\Temp\3582-490\e615a06c4539fc5fabedd46658fdc2ff534d0173f9043162f3809ef3002f0a2c.exe

    Filesize

    741KB

    MD5

    ad7fab95d903b025ebd5a36a8d7e06a6

    SHA1

    66faf0fe2a065f5c6c1701fe9c52e3f2ef677a51

    SHA256

    4617466868abd96c612df835281b02512cba8e21b72be5eaaf817be02996c897

    SHA512

    7c4294ff917e4e8507503b366c4cc7956a73cef38984d783888b07257246f09a9c5e6ceb8fd731c365ffa245f39299a6e366bacb5e7e8c6da03604992ca4406d

  • C:\Users\Admin\AppData\Local\Temp\3582-490\e615a06c4539fc5fabedd46658fdc2ff534d0173f9043162f3809ef3002f0a2c.exe

    Filesize

    741KB

    MD5

    ad7fab95d903b025ebd5a36a8d7e06a6

    SHA1

    66faf0fe2a065f5c6c1701fe9c52e3f2ef677a51

    SHA256

    4617466868abd96c612df835281b02512cba8e21b72be5eaaf817be02996c897

    SHA512

    7c4294ff917e4e8507503b366c4cc7956a73cef38984d783888b07257246f09a9c5e6ceb8fd731c365ffa245f39299a6e366bacb5e7e8c6da03604992ca4406d

  • C:\Users\Admin\AppData\Local\Temp\tmp5023.tmp

    Filesize

    8B

    MD5

    00f2458f5175417bc850cf6ed4c955b1

    SHA1

    bb70d380094bba322689eee4184f915486ad5b02

    SHA256

    df17bd87aeb7104233cdcce2d7c16599236814700d3316a7a3616a895d7e8e1b

    SHA512

    6ba53cffa2743ea25910b9f04e5c5112b04587dd80dff6b11f2f2d7839c48af460917a8e40601f6e1b50ecbfd90af4c6b0b7144bb291d04ec09323893bdb77f5

  • C:\Users\Admin\AppData\Roaming\UGrisULjKfvkUY.exe

    Filesize

    741KB

    MD5

    ad7fab95d903b025ebd5a36a8d7e06a6

    SHA1

    66faf0fe2a065f5c6c1701fe9c52e3f2ef677a51

    SHA256

    4617466868abd96c612df835281b02512cba8e21b72be5eaaf817be02996c897

    SHA512

    7c4294ff917e4e8507503b366c4cc7956a73cef38984d783888b07257246f09a9c5e6ceb8fd731c365ffa245f39299a6e366bacb5e7e8c6da03604992ca4406d

  • C:\Windows\svchost.com

    Filesize

    40KB

    MD5

    2ed7e01ad36755baa317a553f61b0a43

    SHA1

    d9be3a93cb3b1bf996439470a6e6d11366e17e5e

    SHA256

    2f4cb455bf4ae6879fabf59726dcfd5673d5b975a327571447f625095bd54363

    SHA512

    3789f6f2d37c454f64d3b05e27b4d588d48a13c570749b16eade62ba9e62d1909a94e42ff1eff00cc644b4185b8f40ffb91e05b9e88426f146429ce29025998a

  • C:\Windows\svchost.com

    Filesize

    40KB

    MD5

    2ed7e01ad36755baa317a553f61b0a43

    SHA1

    d9be3a93cb3b1bf996439470a6e6d11366e17e5e

    SHA256

    2f4cb455bf4ae6879fabf59726dcfd5673d5b975a327571447f625095bd54363

    SHA512

    3789f6f2d37c454f64d3b05e27b4d588d48a13c570749b16eade62ba9e62d1909a94e42ff1eff00cc644b4185b8f40ffb91e05b9e88426f146429ce29025998a

  • \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\e615a06c4539fc5fabedd46658fdc2ff534d0173f9043162f3809ef3002f0a2c.exe

    Filesize

    741KB

    MD5

    ad7fab95d903b025ebd5a36a8d7e06a6

    SHA1

    66faf0fe2a065f5c6c1701fe9c52e3f2ef677a51

    SHA256

    4617466868abd96c612df835281b02512cba8e21b72be5eaaf817be02996c897

    SHA512

    7c4294ff917e4e8507503b366c4cc7956a73cef38984d783888b07257246f09a9c5e6ceb8fd731c365ffa245f39299a6e366bacb5e7e8c6da03604992ca4406d

  • \Users\Admin\AppData\Local\Temp\3582-490\e615a06c4539fc5fabedd46658fdc2ff534d0173f9043162f3809ef3002f0a2c.exe

    Filesize

    741KB

    MD5

    ad7fab95d903b025ebd5a36a8d7e06a6

    SHA1

    66faf0fe2a065f5c6c1701fe9c52e3f2ef677a51

    SHA256

    4617466868abd96c612df835281b02512cba8e21b72be5eaaf817be02996c897

    SHA512

    7c4294ff917e4e8507503b366c4cc7956a73cef38984d783888b07257246f09a9c5e6ceb8fd731c365ffa245f39299a6e366bacb5e7e8c6da03604992ca4406d

  • memory/432-158-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1100-162-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1100-163-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1100-172-0x0000000004DF0000-0x0000000004E30000-memory.dmp

    Filesize

    256KB

  • memory/1100-171-0x0000000004DF0000-0x0000000004E30000-memory.dmp

    Filesize

    256KB

  • memory/1100-170-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1100-168-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1100-165-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1100-164-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1100-161-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1752-127-0x0000000004D80000-0x0000000004DC0000-memory.dmp

    Filesize

    256KB

  • memory/1752-147-0x0000000000460000-0x000000000047C000-memory.dmp

    Filesize

    112KB

  • memory/1752-140-0x0000000009DD0000-0x0000000009DE6000-memory.dmp

    Filesize

    88KB

  • memory/1752-66-0x0000000000ED0000-0x0000000000F8E000-memory.dmp

    Filesize

    760KB

  • memory/1752-146-0x0000000004F10000-0x0000000004F6A000-memory.dmp

    Filesize

    360KB

  • memory/2024-141-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2024-142-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2024-143-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2024-145-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB