Analysis

  • max time kernel
    138s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 23:51

General

  • Target

    PO#68732.png.exe

  • Size

    2.8MB

  • MD5

    8f12c0c6c1854dae382473bfe77019f7

  • SHA1

    44d776b496ba926e48d5b5def8eeaaab6d64feb8

  • SHA256

    7998ac3e684a8b86abc784ecfbce4a23a54166ef3a08d497a0288dc667c6f510

  • SHA512

    53b97b8f079f558dc26422ee9369c01aedc83ed79d5926594a520c9f719ddbba2add6b5e97c844aaf818beac33510d5e4e74ec4eb175e10d52e9404a846a671c

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\79FE0CC911\Log.txt

Family

masslogger

Ransom Note
<|| v2.2.0.0 ||> User Name: Admin IP: 154.61.71.51 Location: United States Windows OS: Microsoft Windows 7 Ultimate 64bit Windows Serial Key: D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 6:03:09 AM MassLogger Started: 5/21/2022 6:03:02 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\MassLoggerBin.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| USB Spread ||> Disabled <|| Downloader ||> Disabled <|| Window Searcher ||> Disabled <|| Bot Killer ||> Disabled <|| Search And Upload ||> Disabled <|| Telegram Desktop ||> Not Installed <|| Pidgin ||> Not Installed <|| FileZilla ||> Not Installed <|| Discord Tokken ||> Not Installed <|| NordVPN ||> Not Installed <|| Outlook ||> Not Installed <|| FoxMail ||> Not Installed <|| Thunderbird ||> Not Installed <|| FireFox ||> Not Found <|| QQ Browser ||> Not Installed <|| Chromium Recovery ||> Not Installed or Not Found <|| Keylogger And Clipboard ||> NA

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.kaysarplastik.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    abdullah123

Signatures

  • AgentTesla

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

  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

  • MassLogger Main Payload 4 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • AgentTesla Payload 4 IoCs
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 4 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.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 35 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO#68732.png.exe
    "C:\Users\Admin\AppData\Local\Temp\PO#68732.png.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1668
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v foxy /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\foxy.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2032
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v foxy /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\foxy.exe"
        3⤵
        • Adds Run key to start application
        PID:1196
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\foxy.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\foxy.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1732
      • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
        "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:928
        • C:\Users\Admin\AppData\Local\Temp\origiiiy.exe
          "C:\Users\Admin\AppData\Local\Temp\origiiiy.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1548
        • C:\Users\Admin\AppData\Local\Temp\MassLoggerBin.exe
          "C:\Users\Admin\AppData\Local\Temp\MassLoggerBin.exe"
          4⤵
          • Executes dropped EXE
          • Checks computer location settings
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          • outlook_win_path
          PID:1892

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

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

    40KB

    MD5

    91c9ae9c9a17a9db5e08b120e668c74c

    SHA1

    50770954c1ceb0bb6f1d5d3f2de2a0a065773723

    SHA256

    e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

    SHA512

    ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

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

    40KB

    MD5

    91c9ae9c9a17a9db5e08b120e668c74c

    SHA1

    50770954c1ceb0bb6f1d5d3f2de2a0a065773723

    SHA256

    e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

    SHA512

    ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

  • C:\Users\Admin\AppData\Local\Temp\MassLoggerBin.exe
    Filesize

    760KB

    MD5

    e360b31265999e9d600c2b98ba69ad83

    SHA1

    48060da28268736d572d26ba635c0d52539390d8

    SHA256

    457c0cd53307232f629bcf3a18030d36cc053b6f096e647cf49334630710c1f9

    SHA512

    b2bdd4e8f180c55428bdb698ed79244d69ca4b9b50c9be04f59103a78e763f834586339d59ef9af42dd2e3aacf2d38068cdc7e6a211d12c3c250774c45152b99

  • C:\Users\Admin\AppData\Local\Temp\MassLoggerBin.exe
    Filesize

    760KB

    MD5

    e360b31265999e9d600c2b98ba69ad83

    SHA1

    48060da28268736d572d26ba635c0d52539390d8

    SHA256

    457c0cd53307232f629bcf3a18030d36cc053b6f096e647cf49334630710c1f9

    SHA512

    b2bdd4e8f180c55428bdb698ed79244d69ca4b9b50c9be04f59103a78e763f834586339d59ef9af42dd2e3aacf2d38068cdc7e6a211d12c3c250774c45152b99

  • C:\Users\Admin\AppData\Local\Temp\origiiiy.exe
    Filesize

    279KB

    MD5

    f8e56f59f5035e7c8ab16ca9ca382db3

    SHA1

    f4fbca78fe28cf0bd0d38b77f33a7960e94536fe

    SHA256

    e38dd14d76dcca37f9bc11ba99f971087b4880c4ec286efbd577976e0ac38eed

    SHA512

    8125db512042f7bdccc9a70e4e4d80afcaab5a3194e20063fbaaac41768f9ea2ddc03b4f7b3aa13fb7edb948a917e31de353cdf428393cb5ff4dac2274c0b9c0

  • C:\Users\Admin\AppData\Local\Temp\origiiiy.exe
    Filesize

    279KB

    MD5

    f8e56f59f5035e7c8ab16ca9ca382db3

    SHA1

    f4fbca78fe28cf0bd0d38b77f33a7960e94536fe

    SHA256

    e38dd14d76dcca37f9bc11ba99f971087b4880c4ec286efbd577976e0ac38eed

    SHA512

    8125db512042f7bdccc9a70e4e4d80afcaab5a3194e20063fbaaac41768f9ea2ddc03b4f7b3aa13fb7edb948a917e31de353cdf428393cb5ff4dac2274c0b9c0

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\foxy.exe
    Filesize

    2.8MB

    MD5

    8f12c0c6c1854dae382473bfe77019f7

    SHA1

    44d776b496ba926e48d5b5def8eeaaab6d64feb8

    SHA256

    7998ac3e684a8b86abc784ecfbce4a23a54166ef3a08d497a0288dc667c6f510

    SHA512

    53b97b8f079f558dc26422ee9369c01aedc83ed79d5926594a520c9f719ddbba2add6b5e97c844aaf818beac33510d5e4e74ec4eb175e10d52e9404a846a671c

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\foxy.exe
    Filesize

    2.8MB

    MD5

    8f12c0c6c1854dae382473bfe77019f7

    SHA1

    44d776b496ba926e48d5b5def8eeaaab6d64feb8

    SHA256

    7998ac3e684a8b86abc784ecfbce4a23a54166ef3a08d497a0288dc667c6f510

    SHA512

    53b97b8f079f558dc26422ee9369c01aedc83ed79d5926594a520c9f719ddbba2add6b5e97c844aaf818beac33510d5e4e74ec4eb175e10d52e9404a846a671c

  • \Users\Admin\AppData\Local\Temp\InstallUtil.exe
    Filesize

    40KB

    MD5

    91c9ae9c9a17a9db5e08b120e668c74c

    SHA1

    50770954c1ceb0bb6f1d5d3f2de2a0a065773723

    SHA256

    e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

    SHA512

    ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

  • \Users\Admin\AppData\Local\Temp\MassLoggerBin.exe
    Filesize

    760KB

    MD5

    e360b31265999e9d600c2b98ba69ad83

    SHA1

    48060da28268736d572d26ba635c0d52539390d8

    SHA256

    457c0cd53307232f629bcf3a18030d36cc053b6f096e647cf49334630710c1f9

    SHA512

    b2bdd4e8f180c55428bdb698ed79244d69ca4b9b50c9be04f59103a78e763f834586339d59ef9af42dd2e3aacf2d38068cdc7e6a211d12c3c250774c45152b99

  • \Users\Admin\AppData\Local\Temp\origiiiy.exe
    Filesize

    279KB

    MD5

    f8e56f59f5035e7c8ab16ca9ca382db3

    SHA1

    f4fbca78fe28cf0bd0d38b77f33a7960e94536fe

    SHA256

    e38dd14d76dcca37f9bc11ba99f971087b4880c4ec286efbd577976e0ac38eed

    SHA512

    8125db512042f7bdccc9a70e4e4d80afcaab5a3194e20063fbaaac41768f9ea2ddc03b4f7b3aa13fb7edb948a917e31de353cdf428393cb5ff4dac2274c0b9c0

  • \Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\foxy.exe
    Filesize

    2.8MB

    MD5

    8f12c0c6c1854dae382473bfe77019f7

    SHA1

    44d776b496ba926e48d5b5def8eeaaab6d64feb8

    SHA256

    7998ac3e684a8b86abc784ecfbce4a23a54166ef3a08d497a0288dc667c6f510

    SHA512

    53b97b8f079f558dc26422ee9369c01aedc83ed79d5926594a520c9f719ddbba2add6b5e97c844aaf818beac33510d5e4e74ec4eb175e10d52e9404a846a671c

  • memory/928-73-0x000000000055DA1E-mapping.dmp
  • memory/928-79-0x0000000075BA1000-0x0000000075BA3000-memory.dmp
    Filesize

    8KB

  • memory/928-68-0x0000000000400000-0x0000000000562000-memory.dmp
    Filesize

    1.4MB

  • memory/928-70-0x0000000000400000-0x0000000000562000-memory.dmp
    Filesize

    1.4MB

  • memory/928-71-0x0000000000400000-0x0000000000562000-memory.dmp
    Filesize

    1.4MB

  • memory/928-72-0x0000000000400000-0x0000000000562000-memory.dmp
    Filesize

    1.4MB

  • memory/928-67-0x0000000000400000-0x0000000000562000-memory.dmp
    Filesize

    1.4MB

  • memory/928-78-0x0000000000400000-0x0000000000562000-memory.dmp
    Filesize

    1.4MB

  • memory/928-76-0x0000000000400000-0x0000000000562000-memory.dmp
    Filesize

    1.4MB

  • memory/1196-58-0x0000000000000000-mapping.dmp
  • memory/1548-81-0x0000000000000000-mapping.dmp
  • memory/1548-84-0x00000000013A0000-0x00000000013EC000-memory.dmp
    Filesize

    304KB

  • memory/1668-55-0x0000000000200000-0x000000000021E000-memory.dmp
    Filesize

    120KB

  • memory/1668-54-0x0000000000AA0000-0x0000000000D68000-memory.dmp
    Filesize

    2.8MB

  • memory/1668-56-0x0000000000280000-0x000000000028A000-memory.dmp
    Filesize

    40KB

  • memory/1732-63-0x00000000011F0000-0x00000000014B8000-memory.dmp
    Filesize

    2.8MB

  • memory/1732-60-0x0000000000000000-mapping.dmp
  • memory/1732-64-0x00000000003C0000-0x00000000003CA000-memory.dmp
    Filesize

    40KB

  • memory/1892-86-0x0000000000000000-mapping.dmp
  • memory/1892-90-0x0000000000AC0000-0x0000000000B84000-memory.dmp
    Filesize

    784KB

  • memory/1892-91-0x00000000020D0000-0x0000000002148000-memory.dmp
    Filesize

    480KB

  • memory/1892-93-0x00000000004A5000-0x00000000004B6000-memory.dmp
    Filesize

    68KB

  • memory/1892-94-0x00000000009C0000-0x00000000009D4000-memory.dmp
    Filesize

    80KB

  • memory/2032-57-0x0000000000000000-mapping.dmp