Analysis

  • max time kernel
    96s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    24-07-2021 07:06

General

  • Target

    Required Order Details 0099299.exe

  • Size

    1.1MB

  • MD5

    3bcae8c41a076a0803c99fea75f2aa87

  • SHA1

    f2c1b01afcc3a3af6d947b39419bb4531daa8945

  • SHA256

    42ff1648e53d0054bc7c4a5c8a5db648c2a3405415d441c7d5801e52f56bf7a7

  • SHA512

    220880b1422811db1d9cd79030ea8005a7921ecabb580a3ed537d68bb068005f98b14a87e1f90f796d0d506ccd37675c9153a84e2ea0096bc45d55534f5e4113

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.thts.vn
  • Port:
    25
  • Username:
    [email protected]
  • Password:
    123luongngan1989

Extracted

Family

matiex

Credentials

  • Protocol:
    smtp
  • Host:
    mail.thts.vn
  • Port:
    25
  • Username:
    [email protected]
  • Password:
    123luongngan1989

Signatures

  • Matiex

    Matiex is a keylogger and infostealer first seen in July 2020.

  • Matiex Main Payload 3 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.

  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\Required Order Details 0099299.exe
    "C:\Users\Admin\AppData\Local\Temp\Required Order Details 0099299.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3260
    • C:\Users\Admin\AppData\Local\Temp\Required Order Details 0099299.exe
      "C:\Users\Admin\AppData\Local\Temp\Required Order Details 0099299.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2268

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Required Order Details 0099299.exe.log

    MD5

    90acfd72f14a512712b1a7380c0faf60

    SHA1

    40ba4accb8faa75887e84fb8e38d598dc8cf0f12

    SHA256

    20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

    SHA512

    29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

  • memory/2268-125-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/2268-134-0x0000000006820000-0x0000000006821000-memory.dmp

    Filesize

    4KB

  • memory/2268-133-0x0000000005050000-0x00000000050EC000-memory.dmp

    Filesize

    624KB

  • memory/2268-132-0x0000000005190000-0x0000000005191000-memory.dmp

    Filesize

    4KB

  • memory/2268-126-0x000000000046D95E-mapping.dmp

  • memory/3260-119-0x00000000057D0000-0x00000000057D1000-memory.dmp

    Filesize

    4KB

  • memory/3260-122-0x0000000007320000-0x000000000734D000-memory.dmp

    Filesize

    180KB

  • memory/3260-123-0x0000000009EE0000-0x0000000009F67000-memory.dmp

    Filesize

    540KB

  • memory/3260-124-0x0000000009F70000-0x0000000009FE3000-memory.dmp

    Filesize

    460KB

  • memory/3260-121-0x0000000005720000-0x0000000005C1E000-memory.dmp

    Filesize

    5.0MB

  • memory/3260-120-0x0000000005870000-0x0000000005871000-memory.dmp

    Filesize

    4KB

  • memory/3260-114-0x0000000000CA0000-0x0000000000CA1000-memory.dmp

    Filesize

    4KB

  • memory/3260-118-0x0000000005720000-0x0000000005721000-memory.dmp

    Filesize

    4KB

  • memory/3260-117-0x0000000005C20000-0x0000000005C21000-memory.dmp

    Filesize

    4KB

  • memory/3260-116-0x0000000005680000-0x0000000005681000-memory.dmp

    Filesize

    4KB