6647473163108352.zip

General
Target

3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe

Filesize

300MB

Completed

31-12-2021 10:29

Score
10/10
MD5

02991d493aedc4e3b544cf5b9ee57499

SHA1

1de6c330b46ac1de2ec149cdc5c3c4f3da979863

SHA256

3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a

Malware Config

Extracted

Family agenttesla
C2

https://api.telegram.org/bot2049439171:AAHTF-OzMCy9i3S0b0hmaVc_mUsY0h6Ue_w/sendDocument

Signatures 12

Filter: none

Collection
Credential Access
  • AgentTesla

    Description

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

  • AgentTesla Payload

    Reported IOCs

    resourceyara_rule
    behavioral1/memory/1656-59-0x0000000000070000-0x00000000000AC000-memory.dmpfamily_agenttesla
    behavioral1/memory/1656-60-0x0000000000070000-0x00000000000AC000-memory.dmpfamily_agenttesla
    behavioral1/memory/1656-62-0x000000000043772E-mapping.dmpfamily_agenttesla
    behavioral1/memory/1656-63-0x0000000000070000-0x00000000000AC000-memory.dmpfamily_agenttesla
    behavioral1/memory/1656-66-0x0000000000070000-0x00000000000AC000-memory.dmpfamily_agenttesla
    behavioral1/memory/1656-69-0x0000000000070000-0x00000000000AC000-memory.dmpfamily_agenttesla
    behavioral1/memory/1656-70-0x0000000000070000-0x00000000000AC000-memory.dmpfamily_agenttesla
    behavioral1/memory/1656-71-0x0000000000070000-0x00000000000AC000-memory.dmpfamily_agenttesla
  • Reads data files stored by FTP clients

    Description

    Tries to access configuration files associated with programs like FileZilla.

    TTPs

    Data from Local SystemCredentials in Files
  • Reads user/profile data of local email clients

    Description

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

    TTPs

    Data from Local SystemCredentials in Files
  • Reads user/profile data of web browsers

    Description

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

    TTPs

    Data from Local SystemCredentials in Files
  • Accesses Microsoft Outlook profiles
    3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe

    Tags

    TTPs

    Email Collection

    Reported IOCs

    descriptioniocprocess
    Key opened\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A66763a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
    Key opened\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A66763a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
    Key opened\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A66763a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
  • Suspicious use of SetThreadContext
    3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 1084 set thread context of 165610843a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
  • Suspicious behavior: EnumeratesProcesses
    3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe

    Reported IOCs

    pidprocess
    16563a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
    16563a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
  • Suspicious use of AdjustPrivilegeToken
    3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe

    Reported IOCs

    descriptionpidprocess
    Token: SeDebugPrivilege10843a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
    Token: SeDebugPrivilege16563a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
  • Suspicious use of WriteProcessMemory
    3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 1084 wrote to memory of 165610843a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
    PID 1084 wrote to memory of 165610843a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
    PID 1084 wrote to memory of 165610843a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
    PID 1084 wrote to memory of 165610843a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
    PID 1084 wrote to memory of 165610843a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
    PID 1084 wrote to memory of 165610843a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
    PID 1084 wrote to memory of 165610843a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
    PID 1084 wrote to memory of 165610843a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
    PID 1084 wrote to memory of 165610843a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
  • outlook_office_path
    3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe

    Reported IOCs

    descriptioniocprocess
    Key opened\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A66763a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
  • outlook_win_path
    3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe

    Reported IOCs

    descriptioniocprocess
    Key opened\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A66763a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
Processes 2
  • C:\Users\Admin\AppData\Local\Temp\3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
    "C:\Users\Admin\AppData\Local\Temp\3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe"
    Suspicious use of SetThreadContext
    Suspicious use of AdjustPrivilegeToken
    Suspicious use of WriteProcessMemory
    PID:1084
    • C:\Users\Admin\AppData\Local\Temp\3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
      "C:\Users\Admin\AppData\Local\Temp\3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe"
      Accesses Microsoft Outlook profiles
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      outlook_office_path
      outlook_win_path
      PID:1656
Network
MITRE ATT&CK Matrix
Command and Control
    Credential Access
    Defense Evasion
      Discovery
        Execution
          Exfiltration
            Impact
              Initial Access
                Lateral Movement
                  Persistence
                    Privilege Escalation
                      Replay Monitor
                      00:00 00:00
                      Downloads
                      • memory/1084-54-0x0000000001180000-0x000000000122A000-memory.dmp

                      • memory/1084-55-0x0000000001180000-0x000000000122A000-memory.dmp

                      • memory/1084-56-0x0000000000360000-0x0000000000361000-memory.dmp

                      • memory/1656-62-0x000000000043772E-mapping.dmp

                      • memory/1656-58-0x0000000000070000-0x00000000000AC000-memory.dmp

                      • memory/1656-59-0x0000000000070000-0x00000000000AC000-memory.dmp

                      • memory/1656-60-0x0000000000070000-0x00000000000AC000-memory.dmp

                      • memory/1656-57-0x0000000000070000-0x00000000000AC000-memory.dmp

                      • memory/1656-63-0x0000000000070000-0x00000000000AC000-memory.dmp

                      • memory/1656-66-0x0000000000070000-0x00000000000AC000-memory.dmp

                      • memory/1656-69-0x0000000000070000-0x00000000000AC000-memory.dmp

                      • memory/1656-70-0x0000000000070000-0x00000000000AC000-memory.dmp

                      • memory/1656-71-0x0000000000070000-0x00000000000AC000-memory.dmp

                      • memory/1656-72-0x0000000000580000-0x0000000000581000-memory.dmp

                      • memory/1656-73-0x0000000000581000-0x0000000000582000-memory.dmp