Analysis

  • max time kernel
    74s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25-06-2022 05:57

General

  • Target

    4d836a743dfa0064fed53622de6f0d0a990ebf35957b8bfb67dd384ad73a7b28.exe

  • Size

    177KB

  • MD5

    0b3311a35922047e9bdaaddefb53271f

  • SHA1

    815af9f735dd4ceca67e54d3c755513b4dc263a1

  • SHA256

    4d836a743dfa0064fed53622de6f0d0a990ebf35957b8bfb67dd384ad73a7b28

  • SHA512

    ccc694e8b68a3919ca58dd9aca80b46c62c4b54934711155871bb391ab18ff4aa1ee400b48373bca31d303450e6d5700662c4844d1a28d080854847d034f4872

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
  • Reads user/profile data of web browsers 2 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). Likely ransomware behaviour.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\4d836a743dfa0064fed53622de6f0d0a990ebf35957b8bfb67dd384ad73a7b28.exe
    "C:\Users\Admin\AppData\Local\Temp\4d836a743dfa0064fed53622de6f0d0a990ebf35957b8bfb67dd384ad73a7b28.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:824
    • C:\Users\Admin\AppData\Local\Temp\3582-490\4d836a743dfa0064fed53622de6f0d0a990ebf35957b8bfb67dd384ad73a7b28.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\4d836a743dfa0064fed53622de6f0d0a990ebf35957b8bfb67dd384ad73a7b28.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1980
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1980 -s 536
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:240

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Change Default File Association

1
T1042

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\4d836a743dfa0064fed53622de6f0d0a990ebf35957b8bfb67dd384ad73a7b28.exe
    Filesize

    136KB

    MD5

    ac7140a6fd66d4c88d66a1095800b5e8

    SHA1

    89064a226faa2e483d4007a0e7f24316f5f6c848

    SHA256

    d6dcbe88aa45d1808e92a69394306691653ee14d8cee676d32bcbcef2ee0abaf

    SHA512

    bedbc4234bfd7fcc953d73f8877a63cf1f6dac2c433dc401a53ac159ef69a8baa3bb106cc1061bceee504952cc6a9b06e0be5db1742555c092035b2afb8ecf9b

  • C:\Users\Admin\AppData\Local\Temp\3582-490\4d836a743dfa0064fed53622de6f0d0a990ebf35957b8bfb67dd384ad73a7b28.exe
    Filesize

    136KB

    MD5

    ac7140a6fd66d4c88d66a1095800b5e8

    SHA1

    89064a226faa2e483d4007a0e7f24316f5f6c848

    SHA256

    d6dcbe88aa45d1808e92a69394306691653ee14d8cee676d32bcbcef2ee0abaf

    SHA512

    bedbc4234bfd7fcc953d73f8877a63cf1f6dac2c433dc401a53ac159ef69a8baa3bb106cc1061bceee504952cc6a9b06e0be5db1742555c092035b2afb8ecf9b

  • \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\4d836a743dfa0064fed53622de6f0d0a990ebf35957b8bfb67dd384ad73a7b28.exe
    Filesize

    136KB

    MD5

    ac7140a6fd66d4c88d66a1095800b5e8

    SHA1

    89064a226faa2e483d4007a0e7f24316f5f6c848

    SHA256

    d6dcbe88aa45d1808e92a69394306691653ee14d8cee676d32bcbcef2ee0abaf

    SHA512

    bedbc4234bfd7fcc953d73f8877a63cf1f6dac2c433dc401a53ac159ef69a8baa3bb106cc1061bceee504952cc6a9b06e0be5db1742555c092035b2afb8ecf9b

  • \Users\Admin\AppData\Local\Temp\3582-490\4d836a743dfa0064fed53622de6f0d0a990ebf35957b8bfb67dd384ad73a7b28.exe
    Filesize

    136KB

    MD5

    ac7140a6fd66d4c88d66a1095800b5e8

    SHA1

    89064a226faa2e483d4007a0e7f24316f5f6c848

    SHA256

    d6dcbe88aa45d1808e92a69394306691653ee14d8cee676d32bcbcef2ee0abaf

    SHA512

    bedbc4234bfd7fcc953d73f8877a63cf1f6dac2c433dc401a53ac159ef69a8baa3bb106cc1061bceee504952cc6a9b06e0be5db1742555c092035b2afb8ecf9b

  • \Users\Admin\AppData\Local\Temp\3582-490\4d836a743dfa0064fed53622de6f0d0a990ebf35957b8bfb67dd384ad73a7b28.exe
    Filesize

    136KB

    MD5

    ac7140a6fd66d4c88d66a1095800b5e8

    SHA1

    89064a226faa2e483d4007a0e7f24316f5f6c848

    SHA256

    d6dcbe88aa45d1808e92a69394306691653ee14d8cee676d32bcbcef2ee0abaf

    SHA512

    bedbc4234bfd7fcc953d73f8877a63cf1f6dac2c433dc401a53ac159ef69a8baa3bb106cc1061bceee504952cc6a9b06e0be5db1742555c092035b2afb8ecf9b

  • \Users\Admin\AppData\Local\Temp\3582-490\4d836a743dfa0064fed53622de6f0d0a990ebf35957b8bfb67dd384ad73a7b28.exe
    Filesize

    136KB

    MD5

    ac7140a6fd66d4c88d66a1095800b5e8

    SHA1

    89064a226faa2e483d4007a0e7f24316f5f6c848

    SHA256

    d6dcbe88aa45d1808e92a69394306691653ee14d8cee676d32bcbcef2ee0abaf

    SHA512

    bedbc4234bfd7fcc953d73f8877a63cf1f6dac2c433dc401a53ac159ef69a8baa3bb106cc1061bceee504952cc6a9b06e0be5db1742555c092035b2afb8ecf9b

  • \Users\Admin\AppData\Local\Temp\3582-490\4d836a743dfa0064fed53622de6f0d0a990ebf35957b8bfb67dd384ad73a7b28.exe
    Filesize

    136KB

    MD5

    ac7140a6fd66d4c88d66a1095800b5e8

    SHA1

    89064a226faa2e483d4007a0e7f24316f5f6c848

    SHA256

    d6dcbe88aa45d1808e92a69394306691653ee14d8cee676d32bcbcef2ee0abaf

    SHA512

    bedbc4234bfd7fcc953d73f8877a63cf1f6dac2c433dc401a53ac159ef69a8baa3bb106cc1061bceee504952cc6a9b06e0be5db1742555c092035b2afb8ecf9b

  • \Users\Admin\AppData\Local\Temp\3582-490\4d836a743dfa0064fed53622de6f0d0a990ebf35957b8bfb67dd384ad73a7b28.exe
    Filesize

    136KB

    MD5

    ac7140a6fd66d4c88d66a1095800b5e8

    SHA1

    89064a226faa2e483d4007a0e7f24316f5f6c848

    SHA256

    d6dcbe88aa45d1808e92a69394306691653ee14d8cee676d32bcbcef2ee0abaf

    SHA512

    bedbc4234bfd7fcc953d73f8877a63cf1f6dac2c433dc401a53ac159ef69a8baa3bb106cc1061bceee504952cc6a9b06e0be5db1742555c092035b2afb8ecf9b

  • memory/240-60-0x0000000000000000-mapping.dmp
  • memory/824-54-0x0000000075741000-0x0000000075743000-memory.dmp
    Filesize

    8KB

  • memory/1980-59-0x0000000001190000-0x00000000011BA000-memory.dmp
    Filesize

    168KB

  • memory/1980-56-0x0000000000000000-mapping.dmp