Overview

overview

10

Static

static

YKRAB010B_...sx.exe

windows7_x64

10

YKRAB010B_...sx.exe

windows10_x64

10

Analysis

  • max time kernel
    115s
  • max time network
    116s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    22-02-2021 07:26

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General

  • Target

    YKRAB010B_KHE_Preminary Packing List.xlsx.exe

  • Size

    1.1MB

  • MD5

    9a06197daf40639c61cc898e8db91340

  • SHA1

    ffe7c6850523c7d4c7336dee86e65662d8a228db

  • SHA256

    7a44d661f4c1ac837b0045dc28562b098cb66b5e371bda8a79ef00000fa66a65

  • SHA512

    c90c7d9d0809e266a57110681078aaec2e224a01c567d7c6c115300b046ff1ea15d3b9f37d58aaf003e24a33714caa63b765275947515d7a45228eb208b4e277

Score
10/10
agentteslaagilenetkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    smtp.hyshippingcn.com
  • Port:
    587
  • Username:
    plogs112@hyshippingcn.com
  • Password:
    e*u@qkS4

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Obfuscated with Agile.Net obfuscator 1 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    agilenet
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spyware
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spyware
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spyware
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\YKRAB010B_KHE_Preminary Packing List.xlsx.exe
    "C:\Users\Admin\AppData\Local\Temp\YKRAB010B_KHE_Preminary Packing List.xlsx.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1812
    • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
      "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:384

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3
T1081

Discovery

Lateral Movement

Collection

Data from Local System

3
T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
    MD5

    91c9ae9c9a17a9db5e08b120e668c74c

    SHA1

    50770954c1ceb0bb6f1d5d3f2de2a0a065773723

    SHA256

    e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

    SHA512

    ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
    MD5

    91c9ae9c9a17a9db5e08b120e668c74c

    SHA1

    50770954c1ceb0bb6f1d5d3f2de2a0a065773723

    SHA256

    e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

    SHA512

    ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

    Download Submit
  • \Users\Admin\AppData\Local\Temp\InstallUtil.exe
    MD5

    91c9ae9c9a17a9db5e08b120e668c74c

    SHA1

    50770954c1ceb0bb6f1d5d3f2de2a0a065773723

    SHA256

    e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

    SHA512

    ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

    Download Submit
  • memory/384-16-0x0000000073E00000-0x00000000744EE000-memory.dmp
    Filesize

    6.9MB

    Download
  • memory/384-13-0x000000000043763E-mapping.dmp
    Download
  • memory/384-12-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

    Download
  • memory/384-17-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

    Download
  • memory/384-19-0x0000000004C00000-0x0000000004C01000-memory.dmp
    Filesize

    4KB

    Download
  • memory/384-20-0x0000000004C01000-0x0000000004C02000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1812-8-0x0000000004B01000-0x0000000004B02000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1812-9-0x0000000000530000-0x000000000053B000-memory.dmp
    Filesize

    44KB

    Download
  • memory/1812-10-0x0000000000450000-0x0000000000451000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1812-7-0x00000000008B0000-0x00000000008D1000-memory.dmp
    Filesize

    132KB

    Download
  • memory/1812-5-0x0000000004B00000-0x0000000004B01000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1812-3-0x00000000008E0000-0x00000000008E1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1812-2-0x0000000073E00000-0x00000000744EE000-memory.dmp
    Filesize

    6.9MB

    Download