Analysis

  • max time kernel
    146s
  • max time network
    113s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    27-07-2021 16:02

General

  • Target

    494edbe20027214460af19f45f052f9ccc54db18f438572ce41d607bffc227c2.exe

  • Size

    1017KB

  • MD5

    e2e3079ac8c5cbbcc7073ca306ab42ac

  • SHA1

    5236549f1fbe0f93f4bde89e6e96a34ff98894c3

  • SHA256

    494edbe20027214460af19f45f052f9ccc54db18f438572ce41d607bffc227c2

  • SHA512

    84743366be0864382a0e6ad02a0c6440a31686d50ce1c40f5014e2456c0daaca6a74f8fd28373bd0bb739dacf1f4b8932fad5f18f3554fac67f46bff5c2d9d6c

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://fashionandsorucing.com/
  • Port:
    21
  • Username:
    Farmlogs@fashionandsorucing.com
  • Password:
    MNZsxGLNtfYc

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • 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 5 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\494edbe20027214460af19f45f052f9ccc54db18f438572ce41d607bffc227c2.exe
    "C:\Users\Admin\AppData\Local\Temp\494edbe20027214460af19f45f052f9ccc54db18f438572ce41d607bffc227c2.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3156
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\naddtc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBC6B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3364
    • C:\Users\Admin\AppData\Local\Temp\494edbe20027214460af19f45f052f9ccc54db18f438572ce41d607bffc227c2.exe
      "C:\Users\Admin\AppData\Local\Temp\494edbe20027214460af19f45f052f9ccc54db18f438572ce41d607bffc227c2.exe"
      2⤵
        PID:3268
      • C:\Users\Admin\AppData\Local\Temp\494edbe20027214460af19f45f052f9ccc54db18f438572ce41d607bffc227c2.exe
        "C:\Users\Admin\AppData\Local\Temp\494edbe20027214460af19f45f052f9ccc54db18f438572ce41d607bffc227c2.exe"
        2⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: RenamesItself
        • Suspicious use of AdjustPrivilegeToken
        PID:748

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\494edbe20027214460af19f45f052f9ccc54db18f438572ce41d607bffc227c2.exe.log
      MD5

      90acfd72f14a512712b1a7380c0faf60

      SHA1

      40ba4accb8faa75887e84fb8e38d598dc8cf0f12

      SHA256

      20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

      SHA512

      29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

    • C:\Users\Admin\AppData\Local\Temp\tmpBC6B.tmp
      MD5

      0e2f5bf4696e49f04b8b23963165f438

      SHA1

      ba05a1eba0d70e7bf07050bbb38a804439e3c3c0

      SHA256

      08db537660467962f0f1e49e6e00fa576024b215bb79cb13fa7b16c5a4a836c6

      SHA512

      088dc4b1656b2f5f699479afbcca1a3f9aa86c58169ee8f42c3990fb62c923da92b456e6dfecfd6d2f6ebef73a87ba04f89505439097e6f50be17776462fd80a

    • memory/748-136-0x0000000006420000-0x0000000006421000-memory.dmp
      Filesize

      4KB

    • memory/748-135-0x0000000005D30000-0x0000000005D31000-memory.dmp
      Filesize

      4KB

    • memory/748-134-0x00000000030C0000-0x00000000030C1000-memory.dmp
      Filesize

      4KB

    • memory/748-127-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/748-128-0x00000000004375EE-mapping.dmp
    • memory/3156-119-0x0000000004BE0000-0x0000000004BE1000-memory.dmp
      Filesize

      4KB

    • memory/3156-123-0x0000000006F10000-0x0000000006F89000-memory.dmp
      Filesize

      484KB

    • memory/3156-124-0x0000000006FD0000-0x0000000007012000-memory.dmp
      Filesize

      264KB

    • memory/3156-122-0x0000000004CD0000-0x00000000051CE000-memory.dmp
      Filesize

      5.0MB

    • memory/3156-121-0x0000000005040000-0x000000000505B000-memory.dmp
      Filesize

      108KB

    • memory/3156-120-0x0000000004EC0000-0x0000000004EC1000-memory.dmp
      Filesize

      4KB

    • memory/3156-114-0x00000000002D0000-0x00000000002D1000-memory.dmp
      Filesize

      4KB

    • memory/3156-118-0x0000000004CD0000-0x0000000004CD1000-memory.dmp
      Filesize

      4KB

    • memory/3156-117-0x00000000051D0000-0x00000000051D1000-memory.dmp
      Filesize

      4KB

    • memory/3156-116-0x0000000004C30000-0x0000000004C31000-memory.dmp
      Filesize

      4KB

    • memory/3364-125-0x0000000000000000-mapping.dmp