Analysis

  • max time kernel
    4s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 03:04

General

  • Target

    0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe

  • Size

    494KB

  • MD5

    1db98644fc151d0ada247a88b58e60fe

  • SHA1

    20446b70361e6adfba011f1087e0266ce0e5f0a6

  • SHA256

    0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746

  • SHA512

    c4b35bfd04320c4ce60cb1eb4605975774e38965ae43b439313b13b7c700b627d31383065c8762521a086b483de7bc4effab2f542095e2b2463c7aad6cf0c6dc

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 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 7 IoCs
  • 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). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
    "C:\Users\Admin\AppData\Local\Temp\0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe"
    1⤵
    • Modifies system executable filetype association
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Users\Admin\AppData\Local\Temp\3582-490\0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:960
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 960 -s 588
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:1068

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Change Default File Association

1
T1042

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
    Filesize

    454KB

    MD5

    bb3dc88c9290298d290cbdd86fd8eff6

    SHA1

    409480dba5e506558e2fd369b6f97b23334f44a1

    SHA256

    a3d573543a0140a33d7500630e5ef7f6716e2a7814f1897dfc356a39e2385adc

    SHA512

    681aeeb32425b57e44d92a5f2f16a099a59d04269ff9e6e8f4ecef88e352f268ffa4be6efbcd30a39199551aef7ceaedb39e1be574d72d59535247fd3b843890

  • C:\Users\Admin\AppData\Local\Temp\3582-490\0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
    Filesize

    454KB

    MD5

    bb3dc88c9290298d290cbdd86fd8eff6

    SHA1

    409480dba5e506558e2fd369b6f97b23334f44a1

    SHA256

    a3d573543a0140a33d7500630e5ef7f6716e2a7814f1897dfc356a39e2385adc

    SHA512

    681aeeb32425b57e44d92a5f2f16a099a59d04269ff9e6e8f4ecef88e352f268ffa4be6efbcd30a39199551aef7ceaedb39e1be574d72d59535247fd3b843890

  • \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\0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
    Filesize

    454KB

    MD5

    bb3dc88c9290298d290cbdd86fd8eff6

    SHA1

    409480dba5e506558e2fd369b6f97b23334f44a1

    SHA256

    a3d573543a0140a33d7500630e5ef7f6716e2a7814f1897dfc356a39e2385adc

    SHA512

    681aeeb32425b57e44d92a5f2f16a099a59d04269ff9e6e8f4ecef88e352f268ffa4be6efbcd30a39199551aef7ceaedb39e1be574d72d59535247fd3b843890

  • \Users\Admin\AppData\Local\Temp\3582-490\0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
    Filesize

    454KB

    MD5

    bb3dc88c9290298d290cbdd86fd8eff6

    SHA1

    409480dba5e506558e2fd369b6f97b23334f44a1

    SHA256

    a3d573543a0140a33d7500630e5ef7f6716e2a7814f1897dfc356a39e2385adc

    SHA512

    681aeeb32425b57e44d92a5f2f16a099a59d04269ff9e6e8f4ecef88e352f268ffa4be6efbcd30a39199551aef7ceaedb39e1be574d72d59535247fd3b843890

  • \Users\Admin\AppData\Local\Temp\3582-490\0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
    Filesize

    454KB

    MD5

    bb3dc88c9290298d290cbdd86fd8eff6

    SHA1

    409480dba5e506558e2fd369b6f97b23334f44a1

    SHA256

    a3d573543a0140a33d7500630e5ef7f6716e2a7814f1897dfc356a39e2385adc

    SHA512

    681aeeb32425b57e44d92a5f2f16a099a59d04269ff9e6e8f4ecef88e352f268ffa4be6efbcd30a39199551aef7ceaedb39e1be574d72d59535247fd3b843890

  • \Users\Admin\AppData\Local\Temp\3582-490\0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
    Filesize

    454KB

    MD5

    bb3dc88c9290298d290cbdd86fd8eff6

    SHA1

    409480dba5e506558e2fd369b6f97b23334f44a1

    SHA256

    a3d573543a0140a33d7500630e5ef7f6716e2a7814f1897dfc356a39e2385adc

    SHA512

    681aeeb32425b57e44d92a5f2f16a099a59d04269ff9e6e8f4ecef88e352f268ffa4be6efbcd30a39199551aef7ceaedb39e1be574d72d59535247fd3b843890

  • \Users\Admin\AppData\Local\Temp\3582-490\0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
    Filesize

    454KB

    MD5

    bb3dc88c9290298d290cbdd86fd8eff6

    SHA1

    409480dba5e506558e2fd369b6f97b23334f44a1

    SHA256

    a3d573543a0140a33d7500630e5ef7f6716e2a7814f1897dfc356a39e2385adc

    SHA512

    681aeeb32425b57e44d92a5f2f16a099a59d04269ff9e6e8f4ecef88e352f268ffa4be6efbcd30a39199551aef7ceaedb39e1be574d72d59535247fd3b843890

  • \Users\Admin\AppData\Local\Temp\3582-490\0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
    Filesize

    454KB

    MD5

    bb3dc88c9290298d290cbdd86fd8eff6

    SHA1

    409480dba5e506558e2fd369b6f97b23334f44a1

    SHA256

    a3d573543a0140a33d7500630e5ef7f6716e2a7814f1897dfc356a39e2385adc

    SHA512

    681aeeb32425b57e44d92a5f2f16a099a59d04269ff9e6e8f4ecef88e352f268ffa4be6efbcd30a39199551aef7ceaedb39e1be574d72d59535247fd3b843890

  • memory/960-56-0x0000000000000000-mapping.dmp
  • memory/960-59-0x0000000000330000-0x00000000003A8000-memory.dmp
    Filesize

    480KB

  • memory/960-60-0x0000000004420000-0x00000000044CC000-memory.dmp
    Filesize

    688KB

  • memory/1068-61-0x0000000000000000-mapping.dmp
  • memory/1720-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp
    Filesize

    8KB