Resubmissions

27-12-2024 19:21

241227-x258csykgr 10

27-12-2024 19:21

241227-x2vrmaykgm 10

Analysis

  • max time kernel
    60s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    27-12-2024 19:21

General

  • Target

    8d8fceab6594860d035438ce97bfc7a0401bbece8604e9a84c0fa7beea16828d.exe

  • Size

    4.0MB

  • MD5

    b8f4d3e558f7069b5020f7024e6480b3

  • SHA1

    49da493a24e179fac1c0217577966c9af42954b7

  • SHA256

    8d8fceab6594860d035438ce97bfc7a0401bbece8604e9a84c0fa7beea16828d

  • SHA512

    21e88209d4059a3135e81d7b403806f26266548522b06123192f4df15cb72d1896d3801cd35581d2b9e92d76df61e606fca2f46a0a4fd30afc8f869f0b63223d

  • SSDEEP

    98304:RF8QUitE4iLqaPWGnEv+OKQr8MAvFrpHv/kAZIlnHyA:RFQWEPnPBnEmOKIbGpPMAZcyA

Malware Config

Signatures

  • Banload

    Banload variants download malicious files, then install and execute the files.

  • Banload family
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Renames multiple (180) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Drops file in Program Files directory 64 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 44 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8d8fceab6594860d035438ce97bfc7a0401bbece8604e9a84c0fa7beea16828d.exe
    "C:\Users\Admin\AppData\Local\Temp\8d8fceab6594860d035438ce97bfc7a0401bbece8604e9a84c0fa7beea16828d.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    PID:2372

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\$Recycle.Bin\S-1-5-21-2039016743-699959520-214465309-1000\desktop.ini.tmp

    Filesize

    4.1MB

    MD5

    f97b0d30177d7a478e33de01f2cde81f

    SHA1

    2ecf03a5dc22285ab480d974717b1108e35e4d8b

    SHA256

    1e440005fee8a114e2c8f8c6c34e9964a97470b290cbfa9a6789a7e989ddb008

    SHA512

    f82c10dc0705afbbc76e8b85f426bb5cde1d36c70140b9075c7c9fab7aa95c695ad3bb6ac6b1fa3f901c2728be2bcdec8f6740aab46d4347d81bf398f7dbc4f0

  • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Office64WW.xml.tmp

    Filesize

    4.1MB

    MD5

    e0a8e823739151a05649914e6f107544

    SHA1

    2cd77bcb9298e9d4909ed33da140f136039feac3

    SHA256

    6a8d4fc8f47a373187e381c39a348529a1a5ddc9980e4eb4f5df3d53058a80b0

    SHA512

    bcf57952f41be17a7903734a5a1abc906a85c73cccd30e8f9e24cf821fe50fb43c1e6a606fb6bd32b0f818fcd3e0513808e75d8fce42ebd91d62dc36f9ca27ea

  • memory/2372-0-0x0000000000400000-0x0000000000616000-memory.dmp

    Filesize

    2.1MB

  • memory/2372-1-0x0000000003150000-0x000000000335C000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-8-0x0000000003150000-0x000000000335C000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-11-0x0000000000400000-0x0000000000616000-memory.dmp

    Filesize

    2.1MB

  • memory/2372-13-0x0000000003150000-0x000000000335C000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-12-0x0000000000400000-0x0000000000616000-memory.dmp

    Filesize

    2.1MB

  • memory/2372-26-0x0000000003150000-0x000000000335C000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-25-0x0000000003150000-0x000000000335C000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-41-0x0000000000400000-0x0000000000616000-memory.dmp

    Filesize

    2.1MB

  • memory/2372-47-0x0000000003150000-0x000000000335C000-memory.dmp

    Filesize

    2.0MB