Analysis

  • max time kernel
    176s
  • max time network
    188s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    08-02-2022 01:07

General

  • Target

    1NV.exe

  • Size

    333KB

  • MD5

    9a39543f79eefc3f3d8f6b077bde9dd1

  • SHA1

    c0945ef3b12e95dfaace1e20e504b69c02405cb4

  • SHA256

    f91e8935593d3dd5132ddd5986d32f1c6e290922f7fe63245e0eba034b23c283

  • SHA512

    156971dd80dcf0e2b80f0de33ede5a2e67db633e31f018250b26a7076def08e5c22f9a8d9b7affcd3f580e1d56aa077356298692a547a9799c18508892a5d7ef

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    MARYolanmauluogwo@ever

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 8 IoCs
  • Modifies data under HKEY_USERS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1NV.exe
    "C:\Users\Admin\AppData\Local\Temp\1NV.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4164
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
      "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\1NV.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\I$s#$lT3ssl.exe'
      2⤵
      • Drops startup file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4344
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:912
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
    1⤵
    • Modifies data under HKEY_USERS
    PID:4064
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:724
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:3340

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/724-515-0x0000016DC0BE0000-0x0000016DC0BE4000-memory.dmp
    Filesize

    16KB

  • memory/912-186-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/912-193-0x0000000074690000-0x0000000074E40000-memory.dmp
    Filesize

    7.7MB

  • memory/912-194-0x0000000004E90000-0x0000000005434000-memory.dmp
    Filesize

    5.6MB

  • memory/4064-233-0x0000028E445F0000-0x0000028E445F4000-memory.dmp
    Filesize

    16KB

  • memory/4064-222-0x0000028E43970000-0x0000028E43980000-memory.dmp
    Filesize

    64KB

  • memory/4164-132-0x00000000050A0000-0x0000000005644000-memory.dmp
    Filesize

    5.6MB

  • memory/4164-133-0x0000000004BD0000-0x0000000004C62000-memory.dmp
    Filesize

    584KB

  • memory/4164-164-0x0000000004AF0000-0x0000000005094000-memory.dmp
    Filesize

    5.6MB

  • memory/4164-179-0x0000000004D60000-0x0000000004DFC000-memory.dmp
    Filesize

    624KB

  • memory/4164-131-0x00000000001A0000-0x00000000001FA000-memory.dmp
    Filesize

    360KB

  • memory/4164-280-0x0000000004AF0000-0x0000000005094000-memory.dmp
    Filesize

    5.6MB

  • memory/4164-205-0x0000000004E40000-0x0000000004E4A000-memory.dmp
    Filesize

    40KB

  • memory/4164-130-0x0000000074690000-0x0000000074E40000-memory.dmp
    Filesize

    7.7MB

  • memory/4344-189-0x0000000005F20000-0x0000000005F86000-memory.dmp
    Filesize

    408KB

  • memory/4344-192-0x0000000006600000-0x000000000661E000-memory.dmp
    Filesize

    120KB

  • memory/4344-191-0x0000000005212000-0x0000000005213000-memory.dmp
    Filesize

    4KB

  • memory/4344-190-0x0000000006000000-0x0000000006066000-memory.dmp
    Filesize

    408KB

  • memory/4344-195-0x0000000007640000-0x00000000076D6000-memory.dmp
    Filesize

    600KB

  • memory/4344-196-0x0000000006A80000-0x0000000006A9A000-memory.dmp
    Filesize

    104KB

  • memory/4344-197-0x0000000006BB0000-0x0000000006BD2000-memory.dmp
    Filesize

    136KB

  • memory/4344-188-0x0000000005E80000-0x0000000005EA2000-memory.dmp
    Filesize

    136KB

  • memory/4344-187-0x0000000005850000-0x0000000005E78000-memory.dmp
    Filesize

    6.2MB

  • memory/4344-185-0x0000000005210000-0x0000000005211000-memory.dmp
    Filesize

    4KB

  • memory/4344-184-0x0000000005080000-0x00000000050B6000-memory.dmp
    Filesize

    216KB

  • memory/4344-181-0x0000000074690000-0x0000000074E40000-memory.dmp
    Filesize

    7.7MB