Overview

overview

10

Static

static

4409RI1000...XT.exe

windows7_x64

9

4409RI1000...XT.exe

windows10_x64

10

Analysis

  • max time kernel
    139s
  • max time network
    128s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    02-12-2021 11:36

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General

  • Target

    4409RI100080 SWIFTMSG.TXT.exe

  • Size

    458KB

  • MD5

    ee8a0fc4071663b4c7f8524a896b302a

  • SHA1

    27b2da6630e2a684379ef8c16568857070a2a15c

  • SHA256

    f07fc5f31e955fb3c7fc9d9c5a7eff013b987916aa18c60c1b3ff80db344c9ab

  • SHA512

    a6c17a2f0046c4c8a36613f345a881c1692caec5e39b23f0aa4f8de0759cf4184a47a51d70e215021e90db64fb568c02cd9bd56961a5b390cbd56fcb8c410e58

Score
10/10
agentteslacollectionevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1338829993:AAGkgJ80sLaIYwBfp79Ps5EtdSP1XH6jBV8/sendDocument

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 3 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
    evasion
  • Looks for VMWare Tools registry key 2 TTPs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4409RI100080 SWIFTMSG.TXT.exe
    "C:\Users\Admin\AppData\Local\Temp\4409RI100080 SWIFTMSG.TXT.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3652
    • C:\Users\Admin\AppData\Local\Temp\4409RI100080 SWIFTMSG.TXT.exe
      "C:\Users\Admin\AppData\Local\Temp\4409RI100080 SWIFTMSG.TXT.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:696

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

2
T1082

Peripheral Device Discovery

1
T1120

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

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4409RI100080 SWIFTMSG.TXT.exe.log
    MD5

    08c99c62efb4c55287f7e109f3f73898

    SHA1

    014fc140a2281b1b1d6624e107501aa37d044e30

    SHA256

    e396974e7b4e46f23ce4b3db8bee3bcb8b16a8fdd98b8277540d359e47cd7c03

    SHA512

    30e28a60e00bcab92e23be98b5d5cf428c136d0819223f20bd82a44cac31fa1c9a43b80371293f5d74db057c3187fe5782dbcfcd1310a15655d3c72b08451719

    Download Submit
  • memory/696-130-0x0000000000436D7E-mapping.dmp
    Download
  • memory/696-137-0x0000000005090000-0x0000000005091000-memory.dmp
    Filesize

    4KB

    Download
  • memory/696-136-0x00000000050C0000-0x00000000055BE000-memory.dmp
    Filesize

    5.0MB

    Download
  • memory/696-129-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

    Download
  • memory/3652-125-0x0000000005030000-0x0000000005031000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3652-118-0x0000000000590000-0x0000000000591000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3652-126-0x0000000005D30000-0x0000000005D31000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3652-127-0x0000000005C90000-0x0000000005CF8000-memory.dmp
    Filesize

    416KB

    Download
  • memory/3652-128-0x0000000005F40000-0x0000000005F41000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3652-124-0x0000000004F60000-0x0000000004F68000-memory.dmp
    Filesize

    32KB

    Download
  • memory/3652-123-0x0000000001140000-0x0000000001141000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3652-122-0x0000000005090000-0x000000000558E000-memory.dmp
    Filesize

    5.0MB

    Download
  • memory/3652-121-0x0000000004F90000-0x0000000004F91000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3652-120-0x0000000005590000-0x0000000005591000-memory.dmp
    Filesize

    4KB

    Download