Analysis

  • max time kernel
    134s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 16:54

General

  • Target

    8b85b814de78b6661c037250ee2b067109d432455a79627a95ab404c3f464ebc.exe

  • Size

    807KB

  • MD5

    c1065d2a9550d015cdd5a32b672a3ae4

  • SHA1

    d2050074fb3c30d7294fde2014ef0c9b5c422011

  • SHA256

    8b85b814de78b6661c037250ee2b067109d432455a79627a95ab404c3f464ebc

  • SHA512

    8d7c282d03fff74511035da70c47bf8e3766416d54d1b6ecf1900a1cad535987bcb470455e0e3f429a7448bf453b90fb4d55a55a9f148ae3185039efff756619

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 2 IoCs
  • Loads dropped DLL 5 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.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b85b814de78b6661c037250ee2b067109d432455a79627a95ab404c3f464ebc.exe
    "C:\Users\Admin\AppData\Local\Temp\8b85b814de78b6661c037250ee2b067109d432455a79627a95ab404c3f464ebc.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:1984
    • C:\Users\Admin\AppData\Local\Temp\3582-490\8b85b814de78b6661c037250ee2b067109d432455a79627a95ab404c3f464ebc.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\8b85b814de78b6661c037250ee2b067109d432455a79627a95ab404c3f464ebc.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1528
      • C:\Users\Admin\AppData\Local\Temp\is-6LK67.tmp\8b85b814de78b6661c037250ee2b067109d432455a79627a95ab404c3f464ebc.tmp
        "C:\Users\Admin\AppData\Local\Temp\is-6LK67.tmp\8b85b814de78b6661c037250ee2b067109d432455a79627a95ab404c3f464ebc.tmp" /SL5="$70124,350005,121344,C:\Users\Admin\AppData\Local\Temp\3582-490\8b85b814de78b6661c037250ee2b067109d432455a79627a95ab404c3f464ebc.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:1384

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\8b85b814de78b6661c037250ee2b067109d432455a79627a95ab404c3f464ebc.exe
    Filesize

    766KB

    MD5

    8bf9eedb21bd2f8ec6e04c0b007194a1

    SHA1

    bd4c80ddccfed7d60d262eafa00d1254dd00ecdc

    SHA256

    ea94d5b2a594ff39b9dd7d508203cd10a3edde38d3328d2d39dcd8195bb29163

    SHA512

    e925cf5fb149165cf8787cc4d87ada12d6c15d5268fddb7cba7334af83cd4011509f4e6f4b5bcb949df906e053ced4229ed009f595e6dab25cbaae8f079b9bda

  • C:\Users\Admin\AppData\Local\Temp\3582-490\8b85b814de78b6661c037250ee2b067109d432455a79627a95ab404c3f464ebc.exe
    Filesize

    766KB

    MD5

    8bf9eedb21bd2f8ec6e04c0b007194a1

    SHA1

    bd4c80ddccfed7d60d262eafa00d1254dd00ecdc

    SHA256

    ea94d5b2a594ff39b9dd7d508203cd10a3edde38d3328d2d39dcd8195bb29163

    SHA512

    e925cf5fb149165cf8787cc4d87ada12d6c15d5268fddb7cba7334af83cd4011509f4e6f4b5bcb949df906e053ced4229ed009f595e6dab25cbaae8f079b9bda

  • C:\Users\Admin\AppData\Local\Temp\is-6LK67.tmp\8b85b814de78b6661c037250ee2b067109d432455a79627a95ab404c3f464ebc.tmp
    Filesize

    1.1MB

    MD5

    67cc66dcf1d40254764e9648ab29a43e

    SHA1

    c55a6a8e4c4d28cd49c6f50f3b6f6e40832542b8

    SHA256

    9569ef7579fcd2d94f9941d6a42915e13a6963da4fbd8935401e90a3d6dd2660

    SHA512

    ee5ef11f684b31835cf70acf36d7f14f13367777210fd0efd8d8652b989b158da8efc217c108786fc37799171d158d60b4846b1445dd4f28dea212b2ae69655b

  • \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\8b85b814de78b6661c037250ee2b067109d432455a79627a95ab404c3f464ebc.exe
    Filesize

    766KB

    MD5

    8bf9eedb21bd2f8ec6e04c0b007194a1

    SHA1

    bd4c80ddccfed7d60d262eafa00d1254dd00ecdc

    SHA256

    ea94d5b2a594ff39b9dd7d508203cd10a3edde38d3328d2d39dcd8195bb29163

    SHA512

    e925cf5fb149165cf8787cc4d87ada12d6c15d5268fddb7cba7334af83cd4011509f4e6f4b5bcb949df906e053ced4229ed009f595e6dab25cbaae8f079b9bda

  • \Users\Admin\AppData\Local\Temp\is-6LK67.tmp\8b85b814de78b6661c037250ee2b067109d432455a79627a95ab404c3f464ebc.tmp
    Filesize

    1.1MB

    MD5

    67cc66dcf1d40254764e9648ab29a43e

    SHA1

    c55a6a8e4c4d28cd49c6f50f3b6f6e40832542b8

    SHA256

    9569ef7579fcd2d94f9941d6a42915e13a6963da4fbd8935401e90a3d6dd2660

    SHA512

    ee5ef11f684b31835cf70acf36d7f14f13367777210fd0efd8d8652b989b158da8efc217c108786fc37799171d158d60b4846b1445dd4f28dea212b2ae69655b

  • \Users\Admin\AppData\Local\Temp\is-K3I5N.tmp\_isetup\_shfoldr.dll
    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-K3I5N.tmp\_isetup\_shfoldr.dll
    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • memory/1384-63-0x0000000000000000-mapping.dmp
  • memory/1528-59-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/1528-56-0x0000000000000000-mapping.dmp
  • memory/1528-69-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/1984-54-0x00000000756E1000-0x00000000756E3000-memory.dmp
    Filesize

    8KB