Analysis

  • max time kernel
    117s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    29-03-2024 01:18

General

  • Target

    c6ca71a6099738f784dd5d98284f0cbaabfd9c869edcd40f5a307ab937f2a7bb.exe

  • Size

    694KB

  • MD5

    93e133deca5851daeb805df4179f3f7d

  • SHA1

    db3af172e21f93dde8cd1041ac4db458e79120b2

  • SHA256

    c6ca71a6099738f784dd5d98284f0cbaabfd9c869edcd40f5a307ab937f2a7bb

  • SHA512

    6c7c5c90e8add004f1f7971992707027954ca2ba14970c3fcc24b35130782b2303d18d98b1bcea988935d53a877963a636c4d241d6c63c670b4f19ea871bb49b

  • SSDEEP

    12288:l/oc0YOwqOpJkxR17TCR+RVDueQr9w3rFV2fC/S253Kkk5nq7Sdt/A0gvhrdkbza:ygO7SeP7A+vPa63rFVUCT25nq2dgvhZu

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c6ca71a6099738f784dd5d98284f0cbaabfd9c869edcd40f5a307ab937f2a7bb.exe
    "C:\Users\Admin\AppData\Local\Temp\c6ca71a6099738f784dd5d98284f0cbaabfd9c869edcd40f5a307ab937f2a7bb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2692
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\htptCRQZ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2684
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\htptCRQZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9B07.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2756
    • C:\Users\Admin\AppData\Local\Temp\c6ca71a6099738f784dd5d98284f0cbaabfd9c869edcd40f5a307ab937f2a7bb.exe
      "C:\Users\Admin\AppData\Local\Temp\c6ca71a6099738f784dd5d98284f0cbaabfd9c869edcd40f5a307ab937f2a7bb.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2256

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp9B07.tmp
    Filesize

    1KB

    MD5

    575e8ced20a800c51f06d6959b32db9d

    SHA1

    badf8649c47d370b41a0be6ded3b34fc2402e782

    SHA256

    c0be624193a06f30647a6cdec0205415b9b78f6640cd10fa53198e5ca2e6afab

    SHA512

    a94bd6543be7f0dd6d114846a8b418d41fcaca9bc0fccc82b5d94e39efdff389358b2e80095bee270e30224dc47c4381dd5978a1281456ba07e9644c08a8833f

  • memory/2256-18-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2256-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2256-27-0x0000000004780000-0x00000000047C0000-memory.dmp
    Filesize

    256KB

  • memory/2256-22-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2256-20-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2256-33-0x0000000074C00000-0x00000000752EE000-memory.dmp
    Filesize

    6.9MB

  • memory/2256-24-0x0000000074C00000-0x00000000752EE000-memory.dmp
    Filesize

    6.9MB

  • memory/2256-13-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2256-11-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2256-14-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2256-12-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2684-31-0x000000006FC50000-0x00000000701FB000-memory.dmp
    Filesize

    5.7MB

  • memory/2684-28-0x000000006FC50000-0x00000000701FB000-memory.dmp
    Filesize

    5.7MB

  • memory/2684-30-0x0000000002490000-0x00000000024D0000-memory.dmp
    Filesize

    256KB

  • memory/2684-29-0x000000006FC50000-0x00000000701FB000-memory.dmp
    Filesize

    5.7MB

  • memory/2692-5-0x0000000004A30000-0x0000000004AB4000-memory.dmp
    Filesize

    528KB

  • memory/2692-23-0x0000000074C00000-0x00000000752EE000-memory.dmp
    Filesize

    6.9MB

  • memory/2692-0-0x0000000000B90000-0x0000000000C44000-memory.dmp
    Filesize

    720KB

  • memory/2692-4-0x0000000000440000-0x000000000044C000-memory.dmp
    Filesize

    48KB

  • memory/2692-3-0x0000000000490000-0x00000000004AA000-memory.dmp
    Filesize

    104KB

  • memory/2692-2-0x0000000004F70000-0x0000000004FB0000-memory.dmp
    Filesize

    256KB

  • memory/2692-1-0x0000000074C00000-0x00000000752EE000-memory.dmp
    Filesize

    6.9MB