Overview

overview

10

Static

static

Offer#129733.exe

windows7-x64

10

Offer#129733.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 08:25

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General

  • Target

    Offer#129733.exe

  • Size

    500KB

  • MD5

    66025ac6fd60f45bbeac781a6dd87b0d

  • SHA1

    c18b50db3c100d0adbc7a60530e515eb35483389

  • SHA256

    788c228ea56724227e6eb18a04d36fa4eda9dcfd5a90f1131a54f01ce7445a48

  • SHA512

    14aacfd10e247eca000671364a37de573ec9dc98cd18758a7809a0adb0a9d96df1ebb2d5fd54695cd48fcaed9388eff33a8a50c539cc0576baf734a0a96e6b53

  • SSDEEP

    12288:EW9ABfUnsuZbSSPcLRy70P5+7xsQRTK05+UL/QT3Z7i:EW9uUfZ/cLRy70PU7xsQRK05o7l

Score
10/10
agentteslacollectionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spywarestealer
  • 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
  • Looks up external IP address via web service 1 IoCs

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

  • 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.

    persistence
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 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\Offer#129733.exe
    "C:\Users\Admin\AppData\Local\Temp\Offer#129733.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1764
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iZHaPFhbQYqK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp494.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2688
    • C:\Users\Admin\AppData\Local\Temp\Offer#129733.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4504

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Offer#129733.exe.log
    Filesize

    1KB

    MD5

    84e77a587d94307c0ac1357eb4d3d46f

    SHA1

    83cc900f9401f43d181207d64c5adba7a85edc1e

    SHA256

    e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99

    SHA512

    aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\tmp494.tmp
    Filesize

    1KB

    MD5

    acb247bc6d331b3dba372dab61f0d411

    SHA1

    efa8fb0d85bc19ccf7200ddfb7edd8f838287e37

    SHA256

    47bc72cf4010f2a20c6c014bc0ac46475fe8f2edd35ef3a62ec99d2d65b180f4

    SHA512

    532ad32910c9fb9dfa328f65e1567a1e1ccf1eb3e39ddbd57e089656d1fa8ff73202dfa66edfe921ae3209847b71d04a9572fd0ce13bc83cb332b49b4be72d10

    Download Submit
  • memory/1764-132-0x0000000000940000-0x00000000009C4000-memory.dmp
    Filesize

    528KB

    Download
  • memory/1764-133-0x0000000005990000-0x0000000005F34000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/1764-134-0x00000000053E0000-0x0000000005472000-memory.dmp
    Filesize

    584KB

    Download
  • memory/1764-135-0x0000000005520000-0x00000000055BC000-memory.dmp
    Filesize

    624KB

    Download
  • memory/1764-136-0x0000000005490000-0x000000000549A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/2688-137-0x0000000000000000-mapping.dmp
    Download
  • memory/4504-139-0x0000000000000000-mapping.dmp
    Download
  • memory/4504-140-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

    Download
  • memory/4504-142-0x0000000005BC0000-0x0000000005C26000-memory.dmp
    Filesize

    408KB

    Download
  • memory/4504-143-0x0000000006E40000-0x0000000006E90000-memory.dmp
    Filesize

    320KB

    Download