Analysis

  • max time kernel
    149s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-03-2024 13:35

General

  • Target

    kcHayiwhi.exe

  • Size

    948KB

  • MD5

    1f5d33b971e55161344c939113e5e319

  • SHA1

    da15607e443200fa55d7d0a174db42fbd3e79039

  • SHA256

    2a5f8cbeb2b1d8a0d7f99359dce92174c97aa058add33e8f42cf2aef056c8636

  • SHA512

    438ecb39c80cc618b813bef917eddcb268b9ec15f6518f7dbb50187fae37601c0ddc8d847f34a462b4628dca2db458b253171e64a723b15701397dc86f9a1139

  • SSDEEP

    24576:djdIX5Ea8gGNkPRCrYJBSTagnZ3juezrkIUhjmjbdTh7:fIPRPKauu0rYh8bdd

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.sturmsgroup.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ipvN$BhoDv7c(DqD

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect ZGRat V1 34 IoCs
  • PureLog Stealer

    PureLog Stealer is an infostealer written in C#.

  • PureLog Stealer payload 1 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • 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
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\kcHayiwhi.exe
    "C:\Users\Admin\AppData\Local\Temp\kcHayiwhi.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4744
    • C:\Users\Admin\AppData\Local\Temp\kcHayiwhi.exe
      C:\Users\Admin\AppData\Local\Temp\kcHayiwhi.exe
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1820

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\kcHayiwhi.exe.log

    Filesize

    1KB

    MD5

    af8c9fba281902e31952a5af3eaf3a86

    SHA1

    edf070b0b1cf7dc7b47a4f7dded9b0e79af5c310

    SHA256

    9645c41bff7a4cf3fff5b529c5808c4b083b002416c82d8a899fdef72189f802

    SHA512

    5a3ae9d7a7e94da720ac91f6f11d98e1d46773f576bb84ad03cea3731b9babbb61b7a7d1b96449b9bd1375a019ab0c4691ea2c6c5a452c10222460bd87a1b0dd

  • memory/1820-1130-0x0000000075290000-0x0000000075A40000-memory.dmp

    Filesize

    7.7MB

  • memory/1820-1129-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1820-1131-0x00000000054F0000-0x0000000005500000-memory.dmp

    Filesize

    64KB

  • memory/1820-1132-0x0000000005450000-0x00000000054B6000-memory.dmp

    Filesize

    408KB

  • memory/1820-1138-0x00000000054F0000-0x0000000005500000-memory.dmp

    Filesize

    64KB

  • memory/1820-1137-0x0000000075290000-0x0000000075A40000-memory.dmp

    Filesize

    7.7MB

  • memory/1820-1136-0x0000000006CB0000-0x0000000006CBA000-memory.dmp

    Filesize

    40KB

  • memory/1820-1135-0x0000000006CF0000-0x0000000006D82000-memory.dmp

    Filesize

    584KB

  • memory/1820-1134-0x0000000006AB0000-0x0000000006B4C000-memory.dmp

    Filesize

    624KB

  • memory/1820-1133-0x00000000069C0000-0x0000000006A10000-memory.dmp

    Filesize

    320KB

  • memory/4744-38-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-50-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-8-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-10-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-12-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-14-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-16-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-18-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-20-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-22-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-24-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-26-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-28-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-30-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-32-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-34-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-36-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-6-0x00000000055A0000-0x00000000056AA000-memory.dmp

    Filesize

    1.0MB

  • memory/4744-40-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-42-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-44-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-46-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-48-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-7-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-52-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-54-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-56-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-58-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-60-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-62-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-64-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-68-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-66-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-70-0x0000000005390000-0x0000000005443000-memory.dmp

    Filesize

    716KB

  • memory/4744-1121-0x00000000054F0000-0x00000000054F1000-memory.dmp

    Filesize

    4KB

  • memory/4744-5-0x0000000005A70000-0x0000000006088000-memory.dmp

    Filesize

    6.1MB

  • memory/4744-4-0x0000000005390000-0x000000000544A000-memory.dmp

    Filesize

    744KB

  • memory/4744-3-0x0000000005260000-0x000000000531A000-memory.dmp

    Filesize

    744KB

  • memory/4744-2-0x0000000005250000-0x0000000005260000-memory.dmp

    Filesize

    64KB

  • memory/4744-1-0x0000000075290000-0x0000000075A40000-memory.dmp

    Filesize

    7.7MB

  • memory/4744-0-0x0000000000810000-0x0000000000904000-memory.dmp

    Filesize

    976KB

  • memory/4744-1122-0x0000000005550000-0x0000000005592000-memory.dmp

    Filesize

    264KB

  • memory/4744-1123-0x00000000057B0000-0x00000000057FC000-memory.dmp

    Filesize

    304KB

  • memory/4744-1124-0x00000000066B0000-0x0000000006C54000-memory.dmp

    Filesize

    5.6MB

  • memory/4744-1128-0x0000000075290000-0x0000000075A40000-memory.dmp

    Filesize

    7.7MB