Analysis

  • max time kernel
    149s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-09-2024 06:28

General

  • Target

    DEMURRAGE INVOICE.exe

  • Size

    697KB

  • MD5

    26592310cd0668310fd082bdcbe67a34

  • SHA1

    ec06a6a20f0c2f21d44639915d415ad010cdd74f

  • SHA256

    09ff4bcebea6598159b1341704093ab1ff7e2a1eecd0cdc38cb865edb5a35b62

  • SHA512

    914437329e40b531f4f9d231cba77fff5549d724ef72c2788ebac3cfd3560b17c63cbd0e2018bfdb27d3e32eb509bbf767b8a2f1aeb833fd59568b86f6a3119a

  • SSDEEP

    12288:Gr2+Ub83qcHT4ix3dzjLx1F97kv/pg1Rac9Viwt5XHkB:MUbQ4ix3dzjLx1r7U/GWcniw5U

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5862304010:AAGELNW7Uh-qnFDDQucOIsNATlN1Btw8R-8/

Signatures

  • AgentTesla

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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.

  • Looks up external IP address via web service 2 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).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DEMURRAGE INVOICE.exe
    "C:\Users\Admin\AppData\Local\Temp\DEMURRAGE INVOICE.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3788
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\DEMURRAGE INVOICE.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4128
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\rljoKaPjKnocuL.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1488
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rljoKaPjKnocuL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFC32.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3588
    • C:\Users\Admin\AppData\Local\Temp\DEMURRAGE INVOICE.exe
      "C:\Users\Admin\AppData\Local\Temp\DEMURRAGE INVOICE.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1956

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\DEMURRAGE INVOICE.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    5afd52164fa4de4803039146f27163ea

    SHA1

    39498298b2c45ccbd9934d2fc33ba9b092487c55

    SHA256

    ec661531020f59ddd8ffca13add6cefe9a7bf7b2bea6494c4b614c36a53c1fcf

    SHA512

    d3029a1c2f4baab5483ae84130590b8ab4e15006b3da136706834d91a445a16b8f8d64abda41522e208b80131058da9d16f71acecc0a0c24dcd50a295b54f5cb

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_eck2ijlu.tne.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpFC32.tmp

    Filesize

    1KB

    MD5

    0b1445dfa8f45995e560c4d0fe033195

    SHA1

    1efe5a5347a200b5c0cd97518b6a5c43e75dcc0f

    SHA256

    0f8a9badcb42751033f3e217831a3e3fb79de7423a3e9ffdf7d69b8c2e8153e0

    SHA512

    b70ec3d36f5c70a4cc89d91ea8f66d0de68a7025b5259e06b872eb93e5947b2daafdfa9abbc3b279a5f644b38b1c4574ee5fa192cc1324c8094f8925a9df0d0e

  • memory/1488-82-0x00000000079E0000-0x00000000079FA000-memory.dmp

    Filesize

    104KB

  • memory/1488-50-0x0000000006380000-0x000000000639E000-memory.dmp

    Filesize

    120KB

  • memory/1488-75-0x0000000007CE0000-0x000000000835A000-memory.dmp

    Filesize

    6.5MB

  • memory/1488-73-0x0000000007330000-0x000000000734E000-memory.dmp

    Filesize

    120KB

  • memory/1488-59-0x0000000074D40000-0x0000000074D8C000-memory.dmp

    Filesize

    304KB

  • memory/1488-51-0x00000000063B0000-0x00000000063FC000-memory.dmp

    Filesize

    304KB

  • memory/1488-44-0x00000000744D0000-0x0000000074C80000-memory.dmp

    Filesize

    7.7MB

  • memory/1488-83-0x00000000079C0000-0x00000000079C8000-memory.dmp

    Filesize

    32KB

  • memory/1488-89-0x00000000744D0000-0x0000000074C80000-memory.dmp

    Filesize

    7.7MB

  • memory/1488-76-0x00000000076A0000-0x00000000076BA000-memory.dmp

    Filesize

    104KB

  • memory/1488-77-0x0000000007710000-0x000000000771A000-memory.dmp

    Filesize

    40KB

  • memory/1488-74-0x0000000007360000-0x0000000007403000-memory.dmp

    Filesize

    652KB

  • memory/1488-20-0x00000000744D0000-0x0000000074C80000-memory.dmp

    Filesize

    7.7MB

  • memory/1488-34-0x00000000744D0000-0x0000000074C80000-memory.dmp

    Filesize

    7.7MB

  • memory/1956-35-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1956-91-0x00000000070D0000-0x0000000007120000-memory.dmp

    Filesize

    320KB

  • memory/3788-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

    Filesize

    4KB

  • memory/3788-1-0x0000000000D90000-0x0000000000E44000-memory.dmp

    Filesize

    720KB

  • memory/3788-2-0x0000000005DB0000-0x0000000006354000-memory.dmp

    Filesize

    5.6MB

  • memory/3788-3-0x00000000056B0000-0x0000000005742000-memory.dmp

    Filesize

    584KB

  • memory/3788-5-0x0000000005750000-0x000000000575A000-memory.dmp

    Filesize

    40KB

  • memory/3788-4-0x00000000744D0000-0x0000000074C80000-memory.dmp

    Filesize

    7.7MB

  • memory/3788-49-0x00000000744D0000-0x0000000074C80000-memory.dmp

    Filesize

    7.7MB

  • memory/3788-6-0x0000000005960000-0x0000000005970000-memory.dmp

    Filesize

    64KB

  • memory/3788-10-0x00000000096A0000-0x000000000973C000-memory.dmp

    Filesize

    624KB

  • memory/3788-9-0x0000000006C00000-0x0000000006C82000-memory.dmp

    Filesize

    520KB

  • memory/3788-8-0x00000000744D0000-0x0000000074C80000-memory.dmp

    Filesize

    7.7MB

  • memory/3788-7-0x00000000744DE000-0x00000000744DF000-memory.dmp

    Filesize

    4KB

  • memory/4128-16-0x00000000744D0000-0x0000000074C80000-memory.dmp

    Filesize

    7.7MB

  • memory/4128-52-0x0000000007110000-0x0000000007142000-memory.dmp

    Filesize

    200KB

  • memory/4128-53-0x0000000074D40000-0x0000000074D8C000-memory.dmp

    Filesize

    304KB

  • memory/4128-22-0x00000000050A0000-0x00000000050C2000-memory.dmp

    Filesize

    136KB

  • memory/4128-23-0x0000000005790000-0x00000000057F6000-memory.dmp

    Filesize

    408KB

  • memory/4128-78-0x0000000007510000-0x00000000075A6000-memory.dmp

    Filesize

    600KB

  • memory/4128-79-0x0000000007490000-0x00000000074A1000-memory.dmp

    Filesize

    68KB

  • memory/4128-80-0x00000000074C0000-0x00000000074CE000-memory.dmp

    Filesize

    56KB

  • memory/4128-81-0x00000000074D0000-0x00000000074E4000-memory.dmp

    Filesize

    80KB

  • memory/4128-24-0x0000000005870000-0x00000000058D6000-memory.dmp

    Filesize

    408KB

  • memory/4128-36-0x0000000005920000-0x0000000005C74000-memory.dmp

    Filesize

    3.3MB

  • memory/4128-19-0x00000000744D0000-0x0000000074C80000-memory.dmp

    Filesize

    7.7MB

  • memory/4128-18-0x00000000744D0000-0x0000000074C80000-memory.dmp

    Filesize

    7.7MB

  • memory/4128-17-0x0000000005160000-0x0000000005788000-memory.dmp

    Filesize

    6.2MB

  • memory/4128-90-0x00000000744D0000-0x0000000074C80000-memory.dmp

    Filesize

    7.7MB

  • memory/4128-15-0x0000000004990000-0x00000000049C6000-memory.dmp

    Filesize

    216KB