Resubmissions

23-01-2023 02:29

230123-cyn5fsbe76 10

Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-01-2023 02:29

General

  • Target

    Purchase Order No. BCM190282Project.exe

  • Size

    552KB

  • MD5

    085621949a07bb1b819fe5c6894e7381

  • SHA1

    01137a34ab984239fc8517dd79635aaabbfa27b2

  • SHA256

    e183f9caf4ab50798816cb2619cbae642d0952df6cf0820524ef2ca631728b3d

  • SHA512

    2c622c8b1d5d22957bd03be3fd3271c3eb592aff40b7ef5bbe47cfd484f5305e8aab907befdf5a356200f69bfd887843abb3d94a5c00668601f4b9782ab0ad96

  • SSDEEP

    6144:SDgK3Jc/yQeIBLXKvZm5BnZhFY+X550ykb6w5jZSZFMIWJaO74kr2BMRIbhQFu+K:0d5c66BLX/PZjpQNCAaOEkuTEo3

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    Smtp.ionos.es
  • Port:
    587
  • Username:
    mgonzalez@inkor.es
  • Password:
    Random1@@##

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    Smtp.ionos.es
  • Port:
    587
  • Username:
    mgonzalez@inkor.es
  • Password:
    Random1@@##
  • Email To:
    fresh.italian@yandex.com

Signatures

  • AgentTesla

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

  • 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.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 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 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.

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase Order No. BCM190282Project.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order No. BCM190282Project.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2096
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Purchase Order No. BCM190282Project.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1432
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qWncfecZ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2932
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qWncfecZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2AF8.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4228
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order No. BCM190282Project.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase Order No. BCM190282Project.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:64

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
    Filesize

    18KB

    MD5

    1abe17d8c190daa8ac3c339326bb8283

    SHA1

    827c57ca219d2e41d63e6413b346f5130d6f4b6e

    SHA256

    46c0322a8833c83dfd7a8cb22c1e4868be824ccd69d3bb61673c7ef1754edac7

    SHA512

    6f664cd411692fbd7adbfd7873fd08817180f332384ebf4d7070e2357b53512662de0589a38d46e9ee94facfc48b0ca67c2f0150ceafae9f6107d628b12a4ca6

  • C:\Users\Admin\AppData\Local\Temp\tmp2AF8.tmp
    Filesize

    1KB

    MD5

    9f25f786bbf9366f38393f775f988a6b

    SHA1

    05803a8f1764cc9b2bd0b5c71001aeefea24faf8

    SHA256

    82612f546c6addfc7d99c2510bbb2620e7dda650b37871ef6fb9cd76d33e7b76

    SHA512

    eab888341680a6342ef036fb30237d1d56cf01914b34094a9f553146b96d3c192cde7d189955105a780969105f78240f2b6909f25ffce4a209e15a56fe7081c8

  • memory/64-161-0x00000000074D0000-0x0000000007520000-memory.dmp
    Filesize

    320KB

  • memory/64-147-0x0000000000400000-0x000000000042E000-memory.dmp
    Filesize

    184KB

  • memory/64-146-0x0000000000000000-mapping.dmp
  • memory/1432-158-0x0000000007110000-0x000000000712A000-memory.dmp
    Filesize

    104KB

  • memory/1432-151-0x0000000071730000-0x000000007177C000-memory.dmp
    Filesize

    304KB

  • memory/1432-149-0x0000000006A80000-0x0000000006AB2000-memory.dmp
    Filesize

    200KB

  • memory/1432-140-0x00000000021A0000-0x00000000021D6000-memory.dmp
    Filesize

    216KB

  • memory/1432-141-0x0000000004D10000-0x0000000005338000-memory.dmp
    Filesize

    6.2MB

  • memory/1432-142-0x0000000004B00000-0x0000000004B22000-memory.dmp
    Filesize

    136KB

  • memory/1432-156-0x0000000007050000-0x00000000070E6000-memory.dmp
    Filesize

    600KB

  • memory/1432-137-0x0000000000000000-mapping.dmp
  • memory/1432-144-0x0000000004C20000-0x0000000004C86000-memory.dmp
    Filesize

    408KB

  • memory/2096-134-0x0000000005120000-0x00000000051B2000-memory.dmp
    Filesize

    584KB

  • memory/2096-133-0x0000000005630000-0x0000000005BD4000-memory.dmp
    Filesize

    5.6MB

  • memory/2096-135-0x00000000050A0000-0x00000000050AA000-memory.dmp
    Filesize

    40KB

  • memory/2096-136-0x0000000007720000-0x00000000077BC000-memory.dmp
    Filesize

    624KB

  • memory/2096-132-0x0000000000670000-0x00000000006FE000-memory.dmp
    Filesize

    568KB

  • memory/2932-153-0x0000000007CE0000-0x000000000835A000-memory.dmp
    Filesize

    6.5MB

  • memory/2932-152-0x0000000006930000-0x000000000694E000-memory.dmp
    Filesize

    120KB

  • memory/2932-150-0x0000000071730000-0x000000007177C000-memory.dmp
    Filesize

    304KB

  • memory/2932-154-0x0000000007690000-0x00000000076AA000-memory.dmp
    Filesize

    104KB

  • memory/2932-155-0x0000000007710000-0x000000000771A000-memory.dmp
    Filesize

    40KB

  • memory/2932-148-0x0000000006390000-0x00000000063AE000-memory.dmp
    Filesize

    120KB

  • memory/2932-157-0x00000000078C0000-0x00000000078CE000-memory.dmp
    Filesize

    56KB

  • memory/2932-145-0x0000000005D10000-0x0000000005D76000-memory.dmp
    Filesize

    408KB

  • memory/2932-159-0x00000000079B0000-0x00000000079B8000-memory.dmp
    Filesize

    32KB

  • memory/2932-138-0x0000000000000000-mapping.dmp
  • memory/4228-139-0x0000000000000000-mapping.dmp