Overview

overview

10

Static

static

proforma i...sx.exe

windows7_x64

10

proforma i...sx.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 11:53

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General

  • Target

    proforma invoice.xlsx.exe

  • Size

    444KB

  • MD5

    3c631db82599efa6af78c04361cc90d6

  • SHA1

    987c847bd243e8cbd92f7394853e8a07e1b75a62

  • SHA256

    01c471329aeb0abda663f25bd5d0cf03cf0fd7d50bdbf31598c2ad47189289d1

  • SHA512

    59ce2fdb745c0e9ac89166a3972bfeb1eefe6d14ec4b26c66282961b7663e3f34152e4f0d1d65f45b2b90758d1199de957b8ba59747b8f3550bbb5143bea9f97

Score
10/10
agentteslacollectionkeyloggerspywarestealertrojan

Malware Config

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    mail.sna-peru.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    7U11*m3r3

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    mail.sna-peru.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    7U11*m3r3

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 1 IoCs
  • 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
  • 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 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\proforma invoice.xlsx.exe
    "C:\Users\Admin\AppData\Local\Temp\proforma invoice.xlsx.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2920
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qTxqBvkkbwSC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp59F7.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2604
    • C:\Users\Admin\AppData\Local\Temp\proforma invoice.xlsx.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:5092

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\proforma invoice.xlsx.exe.log
    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\tmp59F7.tmp
    Filesize

    1KB

    MD5

    bfaab18f32b6532f2e00a581aeb37857

    SHA1

    595f518dc97c90dfe69d10f673e6be97c80e9f0e

    SHA256

    9ce7fcfd402a8dd8441738c4d12f17a8526f3d9f8ee825955ce08f04ed3a58c7

    SHA512

    7c1710cc685192e020693bb9e319641173065283f6a1bb0a54da5792fa8d925860fbb96358ff9695bd7d004a12538de3e3cba875717fa451052c3d448e013eff

    Download Submit
  • memory/2604-135-0x0000000000000000-mapping.dmp
    Download
  • memory/2920-130-0x0000000000920000-0x0000000000996000-memory.dmp
    Filesize

    472KB

    Download
  • memory/2920-131-0x0000000005820000-0x0000000005DC4000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/2920-132-0x0000000005350000-0x00000000053E2000-memory.dmp
    Filesize

    584KB

    Download
  • memory/2920-133-0x0000000005340000-0x000000000534A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/2920-134-0x0000000007DD0000-0x0000000007E6C000-memory.dmp
    Filesize

    624KB

    Download
  • memory/5092-137-0x0000000000000000-mapping.dmp
    Download
  • memory/5092-138-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

    Download
  • memory/5092-140-0x0000000005590000-0x00000000055F6000-memory.dmp
    Filesize

    408KB

    Download
  • memory/5092-141-0x0000000006490000-0x00000000064E0000-memory.dmp
    Filesize

    320KB

    Download