Analysis

  • max time kernel
    144s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-12-2023 11:00

General

  • Target

    Invoice #47305.exe

  • Size

    248KB

  • MD5

    d1e6e01d8c2621072feaf1ac125e7d8f

  • SHA1

    b37aa7269775413d7de0e52a102b91502ec75c0d

  • SHA256

    d84fbf42018329d0bf2f0045e15aa3b5c4c102e09b6853b3041944ea9f0b1a25

  • SHA512

    6399d554fb566e0928a753cda545569a6681a50d0ccc728029879a9873c4ea141967863de9fcf7d39adb9ed92d6f58fb9f243d181f1b8d329c3362028e4955a0

  • SSDEEP

    6144:WynXAf95NVvmYqY4ONgcfzORSc2RRhvHI:7Cqjcfy2RRhvHI

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.merlinmotorworks.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Merlin1080S

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect ZGRat V1 34 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • 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
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Invoice #47305.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice #47305.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1768
    • C:\Users\Admin\AppData\Local\Temp\Invoice #47305.exe
      "C:\Users\Admin\AppData\Local\Temp\Invoice #47305.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Invoice #47305.exe.log

    Filesize

    1KB

    MD5

    489c7565f9b029ba9fadff774073cc98

    SHA1

    56c05089b33ee7e7dfa9e6a2d098164efd8e1150

    SHA256

    10bf6242da02dad8b2e1208b9dab9a7303cf986320e05e5ef20b99c9b71326d4

    SHA512

    ddea09c011a8d4f85905842c2f34c98add0110a0b6b3b2709718c3614a2c42dec5f4f5d5b9442cfd3c6c23e9a90c8c0b25c14c3dbd42faea9cc8dd232cace1ac

  • memory/1768-0-0x0000000000640000-0x000000000067E000-memory.dmp

    Filesize

    248KB

  • memory/1768-1-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/1768-2-0x0000000005160000-0x0000000005170000-memory.dmp

    Filesize

    64KB

  • memory/1768-3-0x0000000006440000-0x00000000064E8000-memory.dmp

    Filesize

    672KB

  • memory/1768-4-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-5-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-7-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-9-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-11-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-13-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-15-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-17-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-19-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-21-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-29-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-27-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-25-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-31-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-23-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-33-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-35-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-37-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-39-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-41-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-43-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-49-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-51-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-53-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-55-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-57-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-65-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-67-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-63-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-61-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-59-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-47-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-45-0x0000000006440000-0x00000000064E3000-memory.dmp

    Filesize

    652KB

  • memory/1768-926-0x00000000059A0000-0x00000000059A1000-memory.dmp

    Filesize

    4KB

  • memory/1768-927-0x0000000006690000-0x00000000066D2000-memory.dmp

    Filesize

    264KB

  • memory/1768-928-0x00000000066E0000-0x000000000672C000-memory.dmp

    Filesize

    304KB

  • memory/1768-929-0x0000000007040000-0x00000000075E4000-memory.dmp

    Filesize

    5.6MB

  • memory/1768-934-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/3788-935-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/3788-936-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3788-938-0x00000000059A0000-0x0000000005A06000-memory.dmp

    Filesize

    408KB

  • memory/3788-937-0x0000000005A80000-0x0000000005A90000-memory.dmp

    Filesize

    64KB

  • memory/3788-939-0x0000000006DC0000-0x0000000006E10000-memory.dmp

    Filesize

    320KB

  • memory/3788-940-0x0000000006EB0000-0x0000000006F4C000-memory.dmp

    Filesize

    624KB

  • memory/3788-941-0x0000000006FF0000-0x0000000007082000-memory.dmp

    Filesize

    584KB

  • memory/3788-942-0x0000000006F70000-0x0000000006F7A000-memory.dmp

    Filesize

    40KB

  • memory/3788-943-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/3788-944-0x0000000005A80000-0x0000000005A90000-memory.dmp

    Filesize

    64KB