Analysis

  • max time kernel
    147s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    21-01-2021 06:34

General

  • Target

    Kopie des Zahlungsauftrags.exe

  • Size

    817KB

  • MD5

    6322e64fc9245840623b2ad8b2cf115d

  • SHA1

    327571882a86e473634a34f21864aa4134464418

  • SHA256

    761811472e4ceecd2c1f6473eaac9d98a940b47ada70d9bd387df09a68c7f7c8

  • SHA512

    fa3fd3b453cb02cf17da4a3fa8554c2515b001ecdd24d06dfa03010bbdf997ebe5dc50dd0ba29785b7bf1b9099384410df24d7fe16fee70d0ada3f6693c49ed5

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.1and1.es
  • Port:
    587
  • Username:
    info@cristaleriagandia.com
  • Password:
    qWa8u9_2

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Kopie des Zahlungsauftrags.exe
    "C:\Users\Admin\AppData\Local\Temp\Kopie des Zahlungsauftrags.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:580
    • C:\Users\Admin\AppData\Local\Temp\Kopie des Zahlungsauftrags.exe
      "C:\Users\Admin\AppData\Local\Temp\Kopie des Zahlungsauftrags.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1520

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Kopie des Zahlungsauftrags.exe.log
    MD5

    90acfd72f14a512712b1a7380c0faf60

    SHA1

    40ba4accb8faa75887e84fb8e38d598dc8cf0f12

    SHA256

    20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

    SHA512

    29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

  • memory/580-7-0x0000000005790000-0x0000000005791000-memory.dmp
    Filesize

    4KB

  • memory/580-10-0x00000000059D0000-0x00000000059D1000-memory.dmp
    Filesize

    4KB

  • memory/580-6-0x0000000005D50000-0x0000000005D51000-memory.dmp
    Filesize

    4KB

  • memory/580-2-0x0000000073F80000-0x000000007466E000-memory.dmp
    Filesize

    6.9MB

  • memory/580-12-0x00000000065D0000-0x0000000006649000-memory.dmp
    Filesize

    484KB

  • memory/580-9-0x0000000003270000-0x0000000003271000-memory.dmp
    Filesize

    4KB

  • memory/580-5-0x00000000056F0000-0x00000000056F1000-memory.dmp
    Filesize

    4KB

  • memory/580-11-0x00000000058C0000-0x00000000058E3000-memory.dmp
    Filesize

    140KB

  • memory/580-8-0x0000000003230000-0x0000000003231000-memory.dmp
    Filesize

    4KB

  • memory/580-3-0x0000000000DD0000-0x0000000000DD1000-memory.dmp
    Filesize

    4KB

  • memory/1520-14-0x00000000004375DE-mapping.dmp
  • memory/1520-13-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1520-16-0x0000000073F80000-0x000000007466E000-memory.dmp
    Filesize

    6.9MB

  • memory/1520-21-0x00000000054B0000-0x00000000054B1000-memory.dmp
    Filesize

    4KB

  • memory/1520-22-0x0000000005630000-0x0000000005631000-memory.dmp
    Filesize

    4KB

  • memory/1520-23-0x0000000006170000-0x0000000006171000-memory.dmp
    Filesize

    4KB