Analysis

  • max time kernel
    116s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-03-2024 01:42

General

  • Target

    051293df4e318fa67f3075d0a258283885b1c8cf04a32d028de131903d049e97.exe

  • Size

    723KB

  • MD5

    27f2073815cbd3a3cf5f398f91d8a681

  • SHA1

    c2ee2f719d3669758321b8f173e6fb90a70cd939

  • SHA256

    051293df4e318fa67f3075d0a258283885b1c8cf04a32d028de131903d049e97

  • SHA512

    7380f0dd668528ecc65d84bdd8f6375210fa0ed7ea726da1e5f48c5322c66d9c67e69a45d72db74a01a3eeb9908c0ed88fe0efbe80553b77b33f95207580a2b9

  • SSDEEP

    12288:HCpiAa5WQTcmVJUp4WKiZh8ea0cklBo/pLD4UhO+:ipiAtHZy+Bo/N4O

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6199620468:AAFwa9UqxhltZEilbb7Spqja5qgYWeoM_is/

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 3 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\051293df4e318fa67f3075d0a258283885b1c8cf04a32d028de131903d049e97.exe
    "C:\Users\Admin\AppData\Local\Temp\051293df4e318fa67f3075d0a258283885b1c8cf04a32d028de131903d049e97.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:644
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vtwRaGlPJiPG.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4056
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vtwRaGlPJiPG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp859B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3936
    • C:\Users\Admin\AppData\Local\Temp\051293df4e318fa67f3075d0a258283885b1c8cf04a32d028de131903d049e97.exe
      "C:\Users\Admin\AppData\Local\Temp\051293df4e318fa67f3075d0a258283885b1c8cf04a32d028de131903d049e97.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4276

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ccrl3uzm.f0g.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

    723KB

    MD5

    27f2073815cbd3a3cf5f398f91d8a681

    SHA1

    c2ee2f719d3669758321b8f173e6fb90a70cd939

    SHA256

    051293df4e318fa67f3075d0a258283885b1c8cf04a32d028de131903d049e97

    SHA512

    7380f0dd668528ecc65d84bdd8f6375210fa0ed7ea726da1e5f48c5322c66d9c67e69a45d72db74a01a3eeb9908c0ed88fe0efbe80553b77b33f95207580a2b9

  • C:\Users\Admin\AppData\Local\Temp\tmp859B.tmp
    Filesize

    1KB

    MD5

    73249d46ea9afde3bf18b6e456b62a45

    SHA1

    b31acec0c6166a11b67ddc2e9cd77ba3d92862e9

    SHA256

    ef1d0b887235f2e029976c5bbbfa970d2a6f5078d69a0af28c25a34d75f664c5

    SHA512

    20f52f734f55adc6f32c10013db4e60249d83a7f17a1890118e4e4e10bc4f2c08f5cbbc853fe9153ed5712b2d6f18bfecba53fb3699aac78b4e72e5fd08bd245

  • memory/644-6-0x0000000005160000-0x0000000005172000-memory.dmp
    Filesize

    72KB

  • memory/644-4-0x0000000005190000-0x00000000051A0000-memory.dmp
    Filesize

    64KB

  • memory/644-5-0x0000000004EF0000-0x0000000004EFA000-memory.dmp
    Filesize

    40KB

  • memory/644-24-0x0000000075160000-0x0000000075910000-memory.dmp
    Filesize

    7.7MB

  • memory/644-7-0x0000000005180000-0x000000000518C000-memory.dmp
    Filesize

    48KB

  • memory/644-8-0x0000000006BF0000-0x0000000006C76000-memory.dmp
    Filesize

    536KB

  • memory/644-9-0x0000000009290000-0x000000000932C000-memory.dmp
    Filesize

    624KB

  • memory/644-3-0x0000000004F70000-0x0000000005002000-memory.dmp
    Filesize

    584KB

  • memory/644-0-0x0000000000440000-0x00000000004FA000-memory.dmp
    Filesize

    744KB

  • memory/644-2-0x0000000005480000-0x0000000005A24000-memory.dmp
    Filesize

    5.6MB

  • memory/644-1-0x0000000075160000-0x0000000075910000-memory.dmp
    Filesize

    7.7MB

  • memory/4056-58-0x0000000006EC0000-0x0000000006ECA000-memory.dmp
    Filesize

    40KB

  • memory/4056-14-0x0000000002200000-0x0000000002236000-memory.dmp
    Filesize

    216KB

  • memory/4056-69-0x0000000075160000-0x0000000075910000-memory.dmp
    Filesize

    7.7MB

  • memory/4056-21-0x0000000004B60000-0x0000000004B82000-memory.dmp
    Filesize

    136KB

  • memory/4056-19-0x00000000047E0000-0x00000000047F0000-memory.dmp
    Filesize

    64KB

  • memory/4056-25-0x00000000054C0000-0x0000000005526000-memory.dmp
    Filesize

    408KB

  • memory/4056-23-0x0000000005450000-0x00000000054B6000-memory.dmp
    Filesize

    408KB

  • memory/4056-18-0x0000000004E20000-0x0000000005448000-memory.dmp
    Filesize

    6.2MB

  • memory/4056-36-0x0000000005630000-0x0000000005984000-memory.dmp
    Filesize

    3.3MB

  • memory/4056-66-0x0000000007170000-0x0000000007178000-memory.dmp
    Filesize

    32KB

  • memory/4056-65-0x0000000007190000-0x00000000071AA000-memory.dmp
    Filesize

    104KB

  • memory/4056-38-0x0000000005B20000-0x0000000005B3E000-memory.dmp
    Filesize

    120KB

  • memory/4056-39-0x0000000005BD0000-0x0000000005C1C000-memory.dmp
    Filesize

    304KB

  • memory/4056-40-0x000000007F4C0000-0x000000007F4D0000-memory.dmp
    Filesize

    64KB

  • memory/4056-41-0x0000000006100000-0x0000000006132000-memory.dmp
    Filesize

    200KB

  • memory/4056-42-0x0000000070E90000-0x0000000070EDC000-memory.dmp
    Filesize

    304KB

  • memory/4056-52-0x0000000006CF0000-0x0000000006D0E000-memory.dmp
    Filesize

    120KB

  • memory/4056-53-0x00000000047E0000-0x00000000047F0000-memory.dmp
    Filesize

    64KB

  • memory/4056-54-0x00000000047E0000-0x00000000047F0000-memory.dmp
    Filesize

    64KB

  • memory/4056-55-0x0000000006D20000-0x0000000006DC3000-memory.dmp
    Filesize

    652KB

  • memory/4056-56-0x00000000074A0000-0x0000000007B1A000-memory.dmp
    Filesize

    6.5MB

  • memory/4056-57-0x0000000006E50000-0x0000000006E6A000-memory.dmp
    Filesize

    104KB

  • memory/4056-15-0x0000000075160000-0x0000000075910000-memory.dmp
    Filesize

    7.7MB

  • memory/4056-59-0x00000000070D0000-0x0000000007166000-memory.dmp
    Filesize

    600KB

  • memory/4056-60-0x0000000007050000-0x0000000007061000-memory.dmp
    Filesize

    68KB

  • memory/4056-17-0x00000000047E0000-0x00000000047F0000-memory.dmp
    Filesize

    64KB

  • memory/4056-63-0x0000000007080000-0x000000000708E000-memory.dmp
    Filesize

    56KB

  • memory/4056-64-0x0000000007090000-0x00000000070A4000-memory.dmp
    Filesize

    80KB

  • memory/4276-37-0x00000000054C0000-0x00000000054D0000-memory.dmp
    Filesize

    64KB

  • memory/4276-31-0x0000000075160000-0x0000000075910000-memory.dmp
    Filesize

    7.7MB

  • memory/4276-20-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/4276-70-0x0000000006D80000-0x0000000006DD0000-memory.dmp
    Filesize

    320KB

  • memory/4276-71-0x0000000075160000-0x0000000075910000-memory.dmp
    Filesize

    7.7MB

  • memory/4276-72-0x00000000054C0000-0x00000000054D0000-memory.dmp
    Filesize

    64KB