Analysis

  • max time kernel
    103s
  • max time network
    64s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    06-05-2021 22:02

General

  • Target

    STATEMENT OF ACCOUNT.exe

  • Size

    387KB

  • MD5

    5932bd9d5a231f2dce386609a1c80ba9

  • SHA1

    94b257813d301d75895d0fee69a8acc224cca82e

  • SHA256

    14e48e373fee4fafef99517fba97e5ea5727f764a0b92509b307f9387679dd64

  • SHA512

    c10ca6caa068086aef9e36aab1ec8ae9f83367a30fa213d54fcfd5c77f0115e1b4017ddb77cf28bae3761d75ee0118241eb413613cecf4431820d526a7ba967c

Malware Config

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AgentTesla Payload 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • 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 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\STATEMENT OF ACCOUNT.exe
    "C:\Users\Admin\AppData\Local\Temp\STATEMENT OF ACCOUNT.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:856
    • C:\Users\Admin\AppData\Local\Temp\STATEMENT OF ACCOUNT.exe
      "C:\Users\Admin\AppData\Local\Temp\STATEMENT OF ACCOUNT.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3748

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\nsz9283.tmp\wfonpw4.dll
    MD5

    2352a10c7c964ab3ab072f17a78cb77f

    SHA1

    a41c5d247420909bb3a3565dd552990258904f02

    SHA256

    271f00c08e8dbf27f0b36e27df2aa07be3e4492940118ae3e43758a812d7e370

    SHA512

    14634bebdd077a674b02bb9548588868ca56145e497fea67be211bd2887bec65b02c75f7edafdbff0d976ff9a424f8acc1ba0ab4244a1b86ebeb640ceb8c41d4

  • memory/856-116-0x0000000000BF0000-0x0000000000BF3000-memory.dmp
    Filesize

    12KB

  • memory/3748-115-0x000000000040188B-mapping.dmp
  • memory/3748-117-0x0000000000400000-0x000000000044B000-memory.dmp
    Filesize

    300KB

  • memory/3748-119-0x0000000002281000-0x0000000002282000-memory.dmp
    Filesize

    4KB

  • memory/3748-118-0x0000000002280000-0x0000000002281000-memory.dmp
    Filesize

    4KB

  • memory/3748-120-0x0000000002282000-0x0000000002284000-memory.dmp
    Filesize

    8KB

  • memory/3748-121-0x0000000002287000-0x0000000002288000-memory.dmp
    Filesize

    4KB

  • memory/3748-122-0x0000000002288000-0x0000000002289000-memory.dmp
    Filesize

    4KB

  • memory/3748-123-0x000000000228D000-0x000000000228F000-memory.dmp
    Filesize

    8KB