Resubmissions

24-07-2023 06:32

230724-haylwaag65 10

16-07-2023 18:15

230716-wwbacshb7z 10

Analysis

  • max time kernel
    121s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    24-07-2023 06:32

General

  • Target

    1ed6220c4999b159446756990086fc270642dcba035ed1ea45126e3dd081c0b1.exe

  • Size

    788KB

  • MD5

    ca6d30a939bf00eaf7a43f4934a0ab6f

  • SHA1

    11fa35bc832f707f2dfd9474a1ca6fe129510a91

  • SHA256

    1ed6220c4999b159446756990086fc270642dcba035ed1ea45126e3dd081c0b1

  • SHA512

    c719cd814849fe4b1da5d3ae5f04c002b8f100a6923a880bd71a8c4e5ae4d02faac99f8ed33e02de8199858bf3b016463b8bfcc4b774fd37533e73ddbd35ad85

  • SSDEEP

    12288:bOLg1O1q9I6/kldSCGDysmYN/1uXaj63uANpyqHsbwod+ik4g8y3SoD:bOE1OOPWsmYxutXusrEloD

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.qnm.sg
  • Port:
    587
  • Username:
    shuqing@qnm.sg
  • Password:
    qandmshuqing1!

Signatures

  • AgentTesla

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

  • AgentTesla payload 5 IoCs
  • 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
  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1ed6220c4999b159446756990086fc270642dcba035ed1ea45126e3dd081c0b1.exe
    "C:\Users\Admin\AppData\Local\Temp\1ed6220c4999b159446756990086fc270642dcba035ed1ea45126e3dd081c0b1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2812
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gOSdvw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8F64.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2508
    • C:\Users\Admin\AppData\Local\Temp\1ed6220c4999b159446756990086fc270642dcba035ed1ea45126e3dd081c0b1.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2724

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

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

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp8F64.tmp
    Filesize

    1KB

    MD5

    1bcd6da4d0f679daddbfb42b6321465f

    SHA1

    bf4aa223f4821ac35433d50c513b80aa6aab03f8

    SHA256

    fa5d00bab46df2e386a8471f842dc1d716c495a6e72db8a319c615b1ffe4a053

    SHA512

    3bd016ad5329459e5ecdce0fe16b31b312f57ed6e2e476357598a5f3da6f223f5ae3d09ab7b658f84e7f1187aef1de18f915b574960c8a5369b855240945c4f0

  • memory/2724-76-0x0000000000400000-0x000000000044A000-memory.dmp
    Filesize

    296KB

  • memory/2724-74-0x0000000000400000-0x000000000044A000-memory.dmp
    Filesize

    296KB

  • memory/2724-67-0x0000000000400000-0x000000000044A000-memory.dmp
    Filesize

    296KB

  • memory/2724-69-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2724-79-0x0000000073A20000-0x000000007410E000-memory.dmp
    Filesize

    6MB

  • memory/2724-78-0x0000000000480000-0x00000000004C0000-memory.dmp
    Filesize

    256KB

  • memory/2724-63-0x0000000000400000-0x000000000044A000-memory.dmp
    Filesize

    296KB

  • memory/2724-65-0x0000000000400000-0x000000000044A000-memory.dmp
    Filesize

    296KB

  • memory/2724-77-0x0000000073A20000-0x000000007410E000-memory.dmp
    Filesize

    6MB

  • memory/2724-80-0x0000000000480000-0x00000000004C0000-memory.dmp
    Filesize

    256KB

  • memory/2724-71-0x0000000000400000-0x000000000044A000-memory.dmp
    Filesize

    296KB

  • memory/2724-68-0x0000000000400000-0x000000000044A000-memory.dmp
    Filesize

    296KB

  • memory/2812-73-0x0000000074110000-0x00000000747FE000-memory.dmp
    Filesize

    6MB

  • memory/2812-56-0x00000000002B0000-0x00000000002BA000-memory.dmp
    Filesize

    40KB

  • memory/2812-54-0x0000000000F40000-0x000000000100C000-memory.dmp
    Filesize

    816KB

  • memory/2812-57-0x0000000074110000-0x00000000747FE000-memory.dmp
    Filesize

    6MB

  • memory/2812-55-0x0000000074110000-0x00000000747FE000-memory.dmp
    Filesize

    6MB

  • memory/2812-59-0x0000000000660000-0x00000000006B2000-memory.dmp
    Filesize

    328KB

  • memory/2812-58-0x0000000004CE0000-0x0000000004D20000-memory.dmp
    Filesize

    256KB