Overview

overview

9

Static

static

7

aspack.dll

windows7_x64

9

aspack.dll

windows10-2004_x64

9

fat-0455056058.exe

windows7_x64

9

fat-0455056058.exe

windows10-2004_x64

9

Analysis

  • max time kernel
    150s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220414-es
  • submitted
    29-06-2022 16:32

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General

  • Target

    fat-0455056058.exe

  • Size

    557KB

  • MD5

    e33bcdd61d70a1961df2c6d7f0c18351

  • SHA1

    958ff5402b7e05be694b00bb760f124b79fe0c7d

  • SHA256

    b1aad17f65fbdb5fb75e13a00bd3b1db6e5168f8e4419e57b13fb34dc48c4ba4

  • SHA512

    d4bb02140173417986d559b7ab96b3388478a4494ce652ac01e6a84297f86d772408aa6591ace45e75cce589298ee3a9a7864624a25a0cbd7d1ced197bd4946b

Score
9/10
evasionpersistencethemidatrojan

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Drops startup file 2 IoCs
  • Themida packer 6 IoCs

    Detects Themida, an advanced Windows software protection system.

    themida
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fat-0455056058.exe
    "C:\Users\Admin\AppData\Local\Temp\fat-0455056058.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Drops startup file
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    PID:112

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

  • memory/112-54-0x00000000759D1000-0x00000000759D3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/112-55-0x0000000077320000-0x00000000774A0000-memory.dmp
    Filesize

    1.5MB

    Download
  • memory/112-56-0x0000000000550000-0x000000000307E000-memory.dmp
    Filesize

    43.2MB

    Download
  • memory/112-57-0x0000000000550000-0x000000000307E000-memory.dmp
    Filesize

    43.2MB

    Download
  • memory/112-58-0x0000000000550000-0x000000000307E000-memory.dmp
    Filesize

    43.2MB

    Download
  • memory/112-59-0x0000000000550000-0x000000000307E000-memory.dmp
    Filesize

    43.2MB

    Download
  • memory/112-60-0x0000000000550000-0x000000000307E000-memory.dmp
    Filesize

    43.2MB

    Download
  • memory/112-61-0x0000000000550000-0x000000000307E000-memory.dmp
    Filesize

    43.2MB

    Download
  • memory/112-62-0x0000000077320000-0x00000000774A0000-memory.dmp
    Filesize

    1.5MB

    Download