Analysis
- max time kernel
149s - max time network
145s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
06/08/2026, 02:32
Static task
static1
Behavioral task
behavioral1
Sample
見積請求書.js
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
見積請求書.js
Resource
win11ltsc2024-20260709-en
General
- Target 見積請求書.js
- Size 2.8MB
- Sample260806-c1bl5scl41
- SHA256 4d2d933833407d7a57ca47402808a1d79e22f5cffda0d4bd35177669e987d867
- MD5 7e4c1d09d68f95bee7fc820f12c9007a
- SHA1 e98db53888203fe6e2eac4b336252478c33148bd
- SHA512 8a72e6fe77193a26ae7b724a84b2eaf69a57bb01d991698e9589ab6ce6d6dae690b2ff53077a8f6cd00b8417e30f4976af55677cf9b76c4eed3932c484c1f842
- SSDEEP 49152:M18D/Ang6nMyIj04ZsC3yHThH7eAVU4gabpqapefHF/Fh28ePSiy5jPj9TgeGpN:M2D/Angsyj04ZsC3yHThbeAVdgabpqaT
- TLSH T19AD5E5912744D0727B21ABAC61378E319A0FA09355D2DF19316CE30877ADD4FA39CEE6
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://ftp.vilimorin.com
-
Port
21
-
Username
-
Password
17hITZgqC7!aL;z6
Signatures
- Family: AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Family: DonutLoader
DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.
- Detects DonutLoader 2 IoCs
resource yara_rule behavioral2/memory/1260-51-0x00000000152E0000-0x0000000015324000-memory.dmp family_donutloader behavioral2/memory/1260-50-0x00000000152E0000-0x00000000162E0000-memory.dmp family_donutloader - Executes dropped EXE 1 IoCs
pid Process 1260 OAAHIBRPRRYFXWNN.PIF - 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 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 OAAHIBRPRRYFXWNN.PIF - Looks up external IP address via web service 1 TTPs 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 1 ip-api.com - Command and Scripting Interpreter: JavaScript 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{d3162b92-9365-467a-956b-92703aca08af}\Instance\ wscript.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A8CDFF1C-4878-43be-B5FD-F8091C1C60D0}\Instance\ wscript.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1260 OAAHIBRPRRYFXWNN.PIF 1260 OAAHIBRPRRYFXWNN.PIF - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1260 OAAHIBRPRRYFXWNN.PIF - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4600 wrote to memory of 1260 4600 wscript.exe 89 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 OAAHIBRPRRYFXWNN.PIF
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\見積請求書.js1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4600 -
C:\Users\Admin\Documents\OAAHIBRPRRYFXWNN.PIF"C:\Users\Admin\Documents\OAAHIBRPRRYFXWNN.PIF" C:\Users\Admin\Documents\OAAHIBRPRRYFXWNN.ttf2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
PID:1260
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\Documents\OAAHIBRPRRYFXWNN.PIF
- Size 467KB
- SHA256 52f0c0230b580e2fdf53a378b5c6d0db9829af900dae43e0df8f18635cd9f0c1
- MD5 7f47d5ea49f77b99e25ca2918cea8920
- SHA1 b7b3dbcf32f3b7a78554efee75f0ad5746126c69
- SHA512 04f24c43bc290adb84d23453e3dbbbc317e2b2c9c752e4289501a9358c76116188a7d3cd9d3c44acf23254c4aa39bfaac49341e0085ed6d9e9f9eb1016325453
- SSDEEP 12288:26DGsq60U/A62U1q6CkrlA1NIcjBM4rF3/W:26DGsqEVAWhoIcO4rF3/W
- TLSH T17DA43703A2B353BDC667C1308B978BB2BA32BC9512316DBE2454FB311DB1CA1479F529
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\Documents\OAAHIBRPRRYFXWNN.ttf
- Size 482KB
- SHA256 616026c266ff1ef311333d923f2d4bf7b8bd499b7a4f21e6a1dcccc55039a2cf
- MD5 1c7bf82b3b968f1acce1eddfac880fe1
- SHA1 39ca3607b46be4cced173294c30e1abb740dc6bd
- SHA512 5bf6a8f71e39ff0e2c2bc297992ec57db408802e877773853c214460cd32d7d8112e85dee6fddc1d7997591fbfafb39f2b6e20d6060a50026ad2cbf5f15d72d9
- SSDEEP 6144:gnlOCvHkiJ/GofxvT938u9JoCvm3Xov1ByOXI7cfUjBoOKunH2ZystG/3hLWO:gcQHH3x7yu9lmYFJwKuH8yIaLWO
- TLSH T1D7B4AE8BB2C75C9462A242F0CC6B5E8F74BAD8E5074D06474F98C190AF7076CD9F992B
- MD5 SHA1 SHA512 SSDEEP TLSH