Overview

overview

10

Static

static

DHL_expres...ge.exe

windows7_x64

10

DHL_expres...ge.exe

windows10-2004_x64

10

Documents.exe

windows7_x64

10

Documents.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    91s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 12:29

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General

  • Target

    Documents.exe

  • Size

    568KB

  • MD5

    4c4ff89eb2f8ee2fa067a1d017497021

  • SHA1

    8d8c62a01d0c3fc189040472ec42aa5171c1c1e4

  • SHA256

    726e05271ef6a6781ecd7bd9b130e4621734c991160d820f0fdd61186f5fbd55

  • SHA512

    1d2b6dcace4cba63a4cfab4c197286f132ca05b53b2c39c3b3ee60349514b4a2fac61b6e3cbaa61d784b6c7a6d8edb9e48338320c6c3ee8c75a7b225d67a0d2b

Score
10/10
agentteslacollectionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    smtp.mosaiclayouts.com
  • Port:
    587
  • Username:
    sales@mosaiclayouts.com
  • Password:
    UY$W4+]^+9;)7CF5

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

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

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

    spywarestealer
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Documents.exe
    "C:\Users\Admin\AppData\Local\Temp\Documents.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4120
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tRiFxUPIY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1983.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:848
    • C:\Users\Admin\AppData\Local\Temp\Documents.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:3956

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Documents.exe.log
    Filesize

    1KB

    MD5

    400f1cc1a0a0ce1cdabda365ab3368ce

    SHA1

    1ecf683f14271d84f3b6063493dce00ff5f42075

    SHA256

    c8fa64f4b69df13ed6408fd4a204f318a36c2f38c85d4a4d42adfc9173f73765

    SHA512

    14c8cfd58d097e5e89c8cabe1e665173f1ccf604a9ef70cdcb84116e265f90819c19c891be408e0ad7e29086a5c2ea2883b7a7d1184878dbbac63e2cabcd1c45

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  • C:\Users\Admin\AppData\Local\Temp\tmp1983.tmp
    Filesize

    1KB

    MD5

    7d98103352892f9625d7d76b1f8ff3a8

    SHA1

    eb5e43dd19890f75e3abd904b54afe73fe0f93a8

    SHA256

    e1ac61a4a06a769bb24642d97a62ae4f7b1647e5c6bdee4ff6ce30727fdbaaf2

    SHA512

    035a8384a3180589f46d619b029c3d684cc60af692685f1761a5fce74bf05f023beda6f38e355a91757a93a6f2e2b6ea4a5ef493dd4a8dd29923406f0c711644

    Download Submit
  • memory/848-135-0x0000000000000000-mapping.dmp
    Download
  • memory/3956-137-0x0000000000000000-mapping.dmp
    Download
  • memory/3956-138-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

    Download
  • memory/3956-140-0x0000000005D40000-0x0000000005DA6000-memory.dmp
    Filesize

    408KB

    Download
  • memory/4120-130-0x0000000000150000-0x00000000001E4000-memory.dmp
    Filesize

    592KB

    Download
  • memory/4120-131-0x0000000005310000-0x00000000058B4000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/4120-132-0x0000000004F00000-0x0000000004F92000-memory.dmp
    Filesize

    584KB

    Download
  • memory/4120-133-0x0000000004AE0000-0x0000000004AEA000-memory.dmp
    Filesize

    40KB

    Download
  • memory/4120-134-0x0000000008BE0000-0x0000000008C7C000-memory.dmp
    Filesize

    624KB

    Download