Analysis

  • max time kernel
    146s
  • max time network
    65s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    26-02-2021 18:47

General

  • Target

    e464a2d9934812818fc4f5e410399ae3.exe

  • Size

    526KB

  • MD5

    e464a2d9934812818fc4f5e410399ae3

  • SHA1

    30ff845d5d2475bd3cabd77bf3f07abad8e2ea21

  • SHA256

    102b0bdae4e027e3e115490a1fe904b1a9f4fd9e4e52243719ee1167ec4ed62a

  • SHA512

    60534f80fddf03bf092fbcfef59586c035417be579be201a21586520e94f13a0393bdd6d4d1ccfed0634d458919e99058537fb93c1f00aad991c5dafdf4ab305

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @Mexico1.,

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e464a2d9934812818fc4f5e410399ae3.exe
    "C:\Users\Admin\AppData\Local\Temp\e464a2d9934812818fc4f5e410399ae3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:896
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\oAxolApGetjL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8D57.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2468
    • C:\Users\Admin\AppData\Local\Temp\e464a2d9934812818fc4f5e410399ae3.exe
      "C:\Users\Admin\AppData\Local\Temp\e464a2d9934812818fc4f5e410399ae3.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2088

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\e464a2d9934812818fc4f5e410399ae3.exe.log
    MD5

    90acfd72f14a512712b1a7380c0faf60

    SHA1

    40ba4accb8faa75887e84fb8e38d598dc8cf0f12

    SHA256

    20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

    SHA512

    29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

  • C:\Users\Admin\AppData\Local\Temp\tmp8D57.tmp
    MD5

    531e96731338267398902ff1b610e501

    SHA1

    e4053f33ce9f00022f98e7b7882d89e8ae29315d

    SHA256

    0d79eaf4d3878b9038681a41cc9698cc6c6f7d4a7cfd001b8babf5801375ec45

    SHA512

    0d880347c9e70151ee68017fc9c3144b0604d01bf6df406f212d2a9bd61ddab92819ec7572fb1cdeb0a81a4139b32a1d004ee94527e3da53686e1058c0c8c594

  • memory/896-11-0x00000000081B0000-0x00000000081B3000-memory.dmp
    Filesize

    12KB

  • memory/896-12-0x0000000006940000-0x000000000699D000-memory.dmp
    Filesize

    372KB

  • memory/896-7-0x0000000004C60000-0x0000000004C61000-memory.dmp
    Filesize

    4KB

  • memory/896-8-0x0000000004E20000-0x0000000004E21000-memory.dmp
    Filesize

    4KB

  • memory/896-9-0x0000000004B00000-0x0000000004B01000-memory.dmp
    Filesize

    4KB

  • memory/896-10-0x0000000004DC0000-0x0000000004DC1000-memory.dmp
    Filesize

    4KB

  • memory/896-2-0x00000000739E0000-0x00000000740CE000-memory.dmp
    Filesize

    6.9MB

  • memory/896-6-0x0000000005160000-0x0000000005161000-memory.dmp
    Filesize

    4KB

  • memory/896-3-0x0000000000270000-0x0000000000271000-memory.dmp
    Filesize

    4KB

  • memory/896-5-0x0000000004BC0000-0x0000000004BC1000-memory.dmp
    Filesize

    4KB

  • memory/2088-15-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2088-16-0x000000000043746E-mapping.dmp
  • memory/2088-18-0x00000000739E0000-0x00000000740CE000-memory.dmp
    Filesize

    6.9MB

  • memory/2088-23-0x0000000005050000-0x0000000005051000-memory.dmp
    Filesize

    4KB

  • memory/2468-13-0x0000000000000000-mapping.dmp