Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 17:18

General

  • Target

    Doc0781123608.exe

  • Size

    94KB

  • MD5

    9f170077dff189a195a49d2e2904b1d6

  • SHA1

    9467dbf8dd36ebb899eed2200ab0eb5fcabc5604

  • SHA256

    4deb0f08ddd189fab483b1efcabcaf507e43a68d255ca87e1ffa32f248f1f8ac

  • SHA512

    a061207c5f11025de58d9bd143f2dc80612e8599b921b9e6d398e2394239cab702b0a9d6020eb899899df3b0a29976bf8c5043f8f2220d6a7a10d48aef7dc415

  • SSDEEP

    1536:4glqLIQqCxlxFCxMk/joIAy/vezSTXU/JyLN0wKEsvp3hGH:VqLdPxlxFhTvAd22N5psv2H

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    66.29.151.236
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    tCUWipA8mPMH

Extracted

Family

agenttesla

Credentials

Extracted

Family

xworm

Version

5.0

C2

178.215.236.251:717

Mutex

0AVeWj1eTvHM3Un2

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

  • telegram

    https://api.telegram.org/bot5987023205:AAFlvwKv3zD3wQ2CQAewIB6uU95uBQ25ip0/sendMessage?chat_id=5202962680

aes.plain

Signatures

  • AgentTesla

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

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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 2 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Doc0781123608.exe
    "C:\Users\Admin\AppData\Local\Temp\Doc0781123608.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3960
    • C:\Users\Admin\AppData\Local\Temp\winnoclip.exe
      "C:\Users\Admin\AppData\Local\Temp\winnoclip.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3968
      • C:\Users\Admin\AppData\Local\Temp\winnoclip.exe
        "C:\Users\Admin\AppData\Local\Temp\winnoclip.exe"
        3⤵
        • Drops startup file
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4108
    • C:\Users\Admin\AppData\Local\Temp\Doc0781123608.exe
      "C:\Users\Admin\AppData\Local\Temp\Doc0781123608.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2724

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

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

    716B

    MD5

    a92a2835b20b01436fb6517e97090bb1

    SHA1

    1a179d6b4018cc896708aa112b9d683176ba59b9

    SHA256

    807a02aa126863cf5b802851a3b42d233a856346c0fb13517236815a1764e963

    SHA512

    ef51b2bcfa1cdd33a02176d87b609f8ea4a6c4cfcf69094e88459a19bd1c187872b3a789a46e28869dad63f559cab8d51ac1125a172d71c477f3dd0ec60550a9

  • C:\Users\Admin\AppData\Local\Temp\winnoclip.exe
    Filesize

    2.2MB

    MD5

    0d6c8496befd1990a5cbb5c9abb0dbf2

    SHA1

    c0cf9305415e132832a9675f21ce16b4b1470216

    SHA256

    53cbe0b200fc9234981c83d941e0b8857e6a988fce84aed8ad780a7d3348e1c9

    SHA512

    80f330976d1456a29ee4478a23e97f346344dbc99a7af98273512b20715462c5413ee35d437efd54c3ce3a57a25103e5d2c6cae6607c4753431e8de412e8f74a

  • \??\c:\users\admin\documents\tespad.exe
    Filesize

    94KB

    MD5

    9f170077dff189a195a49d2e2904b1d6

    SHA1

    9467dbf8dd36ebb899eed2200ab0eb5fcabc5604

    SHA256

    4deb0f08ddd189fab483b1efcabcaf507e43a68d255ca87e1ffa32f248f1f8ac

    SHA512

    a061207c5f11025de58d9bd143f2dc80612e8599b921b9e6d398e2394239cab702b0a9d6020eb899899df3b0a29976bf8c5043f8f2220d6a7a10d48aef7dc415

  • memory/2724-9815-0x0000000074840000-0x0000000074FF0000-memory.dmp
    Filesize

    7.7MB

  • memory/2724-9813-0x0000000006CF0000-0x0000000006CFA000-memory.dmp
    Filesize

    40KB

  • memory/2724-9812-0x0000000006D60000-0x0000000006DF2000-memory.dmp
    Filesize

    584KB

  • memory/2724-9811-0x0000000006C20000-0x0000000006CBC000-memory.dmp
    Filesize

    624KB

  • memory/2724-9810-0x0000000006B30000-0x0000000006B80000-memory.dmp
    Filesize

    320KB

  • memory/2724-5599-0x0000000074840000-0x0000000074FF0000-memory.dmp
    Filesize

    7.7MB

  • memory/2724-5600-0x00000000053A0000-0x0000000005406000-memory.dmp
    Filesize

    408KB

  • memory/2724-5467-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2724-5236-0x0000000074840000-0x0000000074FF0000-memory.dmp
    Filesize

    7.7MB

  • memory/3960-66-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-4893-0x0000000005E20000-0x0000000005E6C000-memory.dmp
    Filesize

    304KB

  • memory/3960-54-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-53-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-64-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-0-0x000000007484E000-0x000000007484F000-memory.dmp
    Filesize

    4KB

  • memory/3960-62-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-60-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-58-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-56-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-52-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-50-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-46-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-48-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-44-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-42-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-40-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-38-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-34-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-28-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-24-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-18-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-22-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-20-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-16-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-14-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-68-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-4891-0x0000000074840000-0x0000000074FF0000-memory.dmp
    Filesize

    7.7MB

  • memory/3960-4892-0x0000000008D40000-0x0000000008FD2000-memory.dmp
    Filesize

    2.6MB

  • memory/3960-36-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-4894-0x000000007484E000-0x000000007484F000-memory.dmp
    Filesize

    4KB

  • memory/3960-4895-0x0000000074840000-0x0000000074FF0000-memory.dmp
    Filesize

    7.7MB

  • memory/3960-4896-0x0000000074840000-0x0000000074FF0000-memory.dmp
    Filesize

    7.7MB

  • memory/3960-32-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-1-0x0000000000A40000-0x0000000000A5A000-memory.dmp
    Filesize

    104KB

  • memory/3960-4966-0x0000000009680000-0x0000000009C24000-memory.dmp
    Filesize

    5.6MB

  • memory/3960-2-0x0000000005390000-0x0000000005396000-memory.dmp
    Filesize

    24KB

  • memory/3960-4967-0x0000000001010000-0x0000000001064000-memory.dmp
    Filesize

    336KB

  • memory/3960-30-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-26-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-5331-0x0000000074840000-0x0000000074FF0000-memory.dmp
    Filesize

    7.7MB

  • memory/3960-3-0x0000000074840000-0x0000000074FF0000-memory.dmp
    Filesize

    7.7MB

  • memory/3960-4-0x0000000007650000-0x0000000007AA8000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-5-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-10-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-8-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-6-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3960-12-0x0000000007650000-0x0000000007AA2000-memory.dmp
    Filesize

    4.3MB

  • memory/3968-9809-0x00000000059C0000-0x0000000005A1C000-memory.dmp
    Filesize

    368KB

  • memory/3968-9808-0x0000000074840000-0x0000000074FF0000-memory.dmp
    Filesize

    7.7MB

  • memory/3968-4909-0x0000000074840000-0x0000000074FF0000-memory.dmp
    Filesize

    7.7MB

  • memory/3968-9814-0x0000000074840000-0x0000000074FF0000-memory.dmp
    Filesize

    7.7MB

  • memory/3968-4965-0x0000000074840000-0x0000000074FF0000-memory.dmp
    Filesize

    7.7MB

  • memory/3968-4910-0x00000000056E0000-0x0000000005900000-memory.dmp
    Filesize

    2.1MB

  • memory/3968-4908-0x0000000000B20000-0x0000000000D5A000-memory.dmp
    Filesize

    2.2MB

  • memory/3968-9822-0x0000000074840000-0x0000000074FF0000-memory.dmp
    Filesize

    7.7MB

  • memory/4108-9823-0x0000000000400000-0x0000000000412000-memory.dmp
    Filesize

    72KB