Analysis

  • max time kernel
    138s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-11-2022 11:24

General

  • Target

    695677009bd043315e5cefb3705536bfea66edb3d2ee2b29e2aa55eaec653616.exe

  • Size

    299KB

  • MD5

    10e3bd29d05c602b71f90acd2bfa1180

  • SHA1

    bac1b12126800ed696b647d85fb3c5fced7a1b7d

  • SHA256

    695677009bd043315e5cefb3705536bfea66edb3d2ee2b29e2aa55eaec653616

  • SHA512

    ff6b25ba074b59972fdb8434f0a329c22b06feb8f10b17dc68e960342a0bd9d5567a0806d5f081fa7829827f2b4f8521e0fab4102739459bf817107d3a6c245a

  • SSDEEP

    6144:k9Up0yN90QEvdRuJwOuL6HSzgE3h2jtSZ:Oy90BdewOuLcvE3Kt8

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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 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.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\695677009bd043315e5cefb3705536bfea66edb3d2ee2b29e2aa55eaec653616.exe
    "C:\Users\Admin\AppData\Local\Temp\695677009bd043315e5cefb3705536bfea66edb3d2ee2b29e2aa55eaec653616.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4388
    • C:\Users\Admin\AppData\Local\Temp\3582-490\695677009bd043315e5cefb3705536bfea66edb3d2ee2b29e2aa55eaec653616.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\695677009bd043315e5cefb3705536bfea66edb3d2ee2b29e2aa55eaec653616.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:4972
      • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cmstp.exe
        C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\.\cmstp.exe Internet.inf
        3⤵
        • Executes dropped EXE
        PID:1544

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Change Default File Association

1
T1042

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\695677009bd043315e5cefb3705536bfea66edb3d2ee2b29e2aa55eaec653616.exe
    Filesize

    258KB

    MD5

    d1e1d1101082e956eb52a7c40df36498

    SHA1

    09e7fbac9c08d1e20730c38913e8e4446d47988a

    SHA256

    d1fb2a682d08aa9d56efc47803b3f4b735c665730eb9d8e21a0859836188098c

    SHA512

    aef16143b2021fc2e0b0f24759187283f6594df4fbaf777e2f6cefea9fa2a737c766d9b0c63d4aac00bb634df65000710984e37c8e837548fcf5e300f52cb2c0

  • C:\Users\Admin\AppData\Local\Temp\3582-490\695677009bd043315e5cefb3705536bfea66edb3d2ee2b29e2aa55eaec653616.exe
    Filesize

    258KB

    MD5

    d1e1d1101082e956eb52a7c40df36498

    SHA1

    09e7fbac9c08d1e20730c38913e8e4446d47988a

    SHA256

    d1fb2a682d08aa9d56efc47803b3f4b735c665730eb9d8e21a0859836188098c

    SHA512

    aef16143b2021fc2e0b0f24759187283f6594df4fbaf777e2f6cefea9fa2a737c766d9b0c63d4aac00bb634df65000710984e37c8e837548fcf5e300f52cb2c0

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Internet.cmp
    Filesize

    170B

    MD5

    ddac897b002b9c9c32336587c08ef0f5

    SHA1

    13f6126cdfe340193769dbfdc3a36e68623d36f8

    SHA256

    d1d0381215fc56f7a4a43c77b054ed0cd947e2de616406ce2b44de04413f158e

    SHA512

    1d9dfd0d5f329cf04b319a4810183aeb1d016e1c4f38d8a0a0f171414fc8cffb0cb8c2fd40104aa00d85675628f6821c9986138824ebbfdedf55a13bf144b6ce

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Internet.inf
    Filesize

    20KB

    MD5

    19aa88e77ec688adb12706680fcef918

    SHA1

    fcf0dc198e78169efc0c4ae45b654b81d52868f6

    SHA256

    56163da62022cb20f66cd73e6c30a26b667b9dfe7c757dfeb09f2f1646f43bde

    SHA512

    0e7d8734a3bf1fb18304e0a9ee3636f9d823e53b2f1df1400a6194e87e3004122c03a583c0fe2ee8df66214c07bffb685e5637e2886217ad55ac817cde7c7240

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cmstp.exe
    Filesize

    96KB

    MD5

    76ec4c7bf8244a8e8a5ff9462f026fb5

    SHA1

    c2b6c0fb1505d2e38bd115ae2af08a9910ffa4d3

    SHA256

    287daf1e542671ef8ca33fb03ab81de9fc279f3da4255b49cdc0e103c3a44b65

    SHA512

    f266c88a25d19de89e361dc8d48e760545ae02a2f63f8a085f22715887111b2d504d1d271fbe5f950a1ca73b8d41bf0ba78a00e1cad195381b0caf1d50baed85

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cmstp.exe
    Filesize

    96KB

    MD5

    76ec4c7bf8244a8e8a5ff9462f026fb5

    SHA1

    c2b6c0fb1505d2e38bd115ae2af08a9910ffa4d3

    SHA256

    287daf1e542671ef8ca33fb03ab81de9fc279f3da4255b49cdc0e103c3a44b65

    SHA512

    f266c88a25d19de89e361dc8d48e760545ae02a2f63f8a085f22715887111b2d504d1d271fbe5f950a1ca73b8d41bf0ba78a00e1cad195381b0caf1d50baed85

  • memory/1544-135-0x0000000000000000-mapping.dmp
  • memory/4972-132-0x0000000000000000-mapping.dmp