Overview

overview

10

Static

static

1

Ref. #EXQ-...37.exe

windows7_x64

10

Ref. #EXQ-...37.exe

windows10_x64

10

Analysis

  • max time kernel
    300s
  • max time network
    300s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    02-12-2021 13:08

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General

  • Target

    Ref. #EXQ-21-2911 zip 325637.exe

  • Size

    371KB

  • MD5

    ece9b6b1f88aee486ce02418c53a1b17

  • SHA1

    1e489c4d332257712d95ba2d6ff93329962c46bd

  • SHA256

    70c4072f4f52adc69c331fa7cf5d22bef0da2661a4d2d9b3efe18dd19c8388a2

  • SHA512

    63e97fc74d7d9088bc9ad9b9d458455c5f7949bfb44efb344590968b09a7d77f3b6ef58f56ad8d65092aaff5098a20125b3be7646739ea547c84234269b9d8a6

Score
10/10
agentteslacollectionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot2142399843:AAEIp_i4m3MsSw_cMxsjWVR6wiMUP2LDrvg/sendDocument

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 4 IoCs
  • Loads dropped DLL 1 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.

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

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

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ref. #EXQ-21-2911 zip 325637.exe
    "C:\Users\Admin\AppData\Local\Temp\Ref. #EXQ-21-2911 zip 325637.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1472
    • C:\Users\Admin\AppData\Local\Temp\Ref. #EXQ-21-2911 zip 325637.exe
      "C:\Users\Admin\AppData\Local\Temp\Ref. #EXQ-21-2911 zip 325637.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1508

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2
T1081

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\nsdEA50.tmp\yjofgptf.dll
    MD5

    8911cfdf4752442c03817ac3bb5f703d

    SHA1

    9cc0e96308c4c37b119de7e85d1813b94ae2c5f9

    SHA256

    e07a6c2f60d80e853cfc1b8156b3990ba90fc1b1c30a0f7e144f8f97be1e8ec4

    SHA512

    26c308ffdf3a1e7b19e8f89aa2a2bbd85f9cd20da77eca0d51456ea9c6946f10cd7bc80bdc47a32b21003f9deeff9abe0f00b3478564e8dcfdd143febdd279f3

    Download Submit
  • memory/1472-55-0x0000000074E51000-0x0000000074E53000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1508-57-0x0000000000400000-0x000000000044B000-memory.dmp
    Filesize

    300KB

    Download
  • memory/1508-58-0x000000000040188B-mapping.dmp
    Download
  • memory/1508-60-0x0000000000400000-0x000000000044B000-memory.dmp
    Filesize

    300KB

    Download
  • memory/1508-61-0x0000000001F00000-0x0000000001F36000-memory.dmp
    Filesize

    216KB

    Download
  • memory/1508-64-0x0000000004602000-0x0000000004603000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1508-63-0x0000000004601000-0x0000000004602000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1508-66-0x0000000004604000-0x0000000004605000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1508-65-0x0000000004603000-0x0000000004604000-memory.dmp
    Filesize

    4KB

    Download