Analysis

  • max time kernel
    151s
  • max time network
    136s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    01-12-2021 17:08

General

  • Target

    1089765423012021_inquiry.exe

  • Size

    560KB

  • MD5

    b47c3006b43aff7a9c395e6ddf7d65ec

  • SHA1

    785ba2f4990bf8d8ee4a3fb8986131756338a662

  • SHA256

    c5c10a5a97d09d2545fa73ab64459b2fdaeadf3ef2a08bceadcbff26a69b65f5

  • SHA512

    8fa5c1397532acf8abab18e63b29072117fbf1b9139520be74d2d9261efe448aa9a05218ee09402085340b352f754d77dc3750af96845b425ad0fe6404088aa8

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.modularelect.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    successman12@

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1089765423012021_inquiry.exe
    "C:\Users\Admin\AppData\Local\Temp\1089765423012021_inquiry.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3392
    • C:\Users\Admin\AppData\Local\Temp\1089765423012021_inquiry.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1908

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\1089765423012021_inquiry.exe.log
    MD5

    90acfd72f14a512712b1a7380c0faf60

    SHA1

    40ba4accb8faa75887e84fb8e38d598dc8cf0f12

    SHA256

    20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

    SHA512

    29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

  • memory/1908-126-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1908-138-0x0000000005140000-0x000000000563E000-memory.dmp
    Filesize

    5.0MB

  • memory/1908-135-0x0000000005D30000-0x0000000005D31000-memory.dmp
    Filesize

    4KB

  • memory/1908-134-0x0000000005280000-0x0000000005281000-memory.dmp
    Filesize

    4KB

  • memory/1908-133-0x0000000005140000-0x000000000563E000-memory.dmp
    Filesize

    5.0MB

  • memory/1908-127-0x00000000004375FE-mapping.dmp
  • memory/3392-120-0x0000000004F20000-0x000000000541E000-memory.dmp
    Filesize

    5.0MB

  • memory/3392-124-0x0000000007960000-0x00000000079DF000-memory.dmp
    Filesize

    508KB

  • memory/3392-125-0x0000000009F30000-0x0000000009F68000-memory.dmp
    Filesize

    224KB

  • memory/3392-123-0x00000000050E0000-0x00000000050E5000-memory.dmp
    Filesize

    20KB

  • memory/3392-122-0x0000000005110000-0x0000000005111000-memory.dmp
    Filesize

    4KB

  • memory/3392-121-0x0000000004DE0000-0x0000000004DE1000-memory.dmp
    Filesize

    4KB

  • memory/3392-115-0x0000000000400000-0x0000000000401000-memory.dmp
    Filesize

    4KB

  • memory/3392-119-0x0000000004F20000-0x0000000004F21000-memory.dmp
    Filesize

    4KB

  • memory/3392-118-0x0000000005420000-0x0000000005421000-memory.dmp
    Filesize

    4KB

  • memory/3392-117-0x0000000004E80000-0x0000000004E81000-memory.dmp
    Filesize

    4KB