Analysis
- max time kernel
149s - max time network
154s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
09/06/2026, 12:55
Static task
static1
Behavioral task
behavioral1
Sample
請求書.js
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
請求書.js
Resource
win11-20260513-en
General
- Target 請求書.js
- Size 6.9MB
- Sample260609-p52eksaw7t
- SHA256 b87f7b38f087592979ec3a441c54dc45d31e8071736050c40aa31aa5d85a3275
- MD5 1c56aca36f2350698d745e2a7f088873
- SHA1 53a8c2384512efe911a3c151eb3d8603291d64e6
- SHA512 e63cde54397caa17f7523ed63171035b8f45b335aa063edfe3d9684394afb1d6de2e01b1475b6ec80b6a688702867398b85b4039d6767d304970b7c0292dc9d2
- SSDEEP 98304:EgbQz9aTVoKcJaKgCNobPn5hQxTU3gJhmLgJZTctqv32+anj9hx:zf5o28NobP5GxTUQGLgJxQhx
- TLSH T1187641310354C631E3545FAB26A9B128640D5DCA98F9EB067A5EC7B0127E833E37B7B1
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://ftp.enogcaen-br.com
-
Port
21
-
Username
-
Password
)%8D{RiwKcGI;U$D
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/5872-54-0x0000000015AA0000-0x0000000016AA0000-memory.dmp family_donutloader behavioral2/memory/5872-55-0x0000000015AA0000-0x0000000015AE4000-memory.dmp family_donutloader - Executes dropped EXE 1 IoCs
pid Process 5872 MSBOUMDGOAYWTNIO.exe - 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-1-5-21-2746394149-3500112804-1243524366-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBOUMDGOAYWTNIO.exe - Looks up external IP address via web service 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).
- Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 5872 MSBOUMDGOAYWTNIO.exe 5872 MSBOUMDGOAYWTNIO.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 5872 MSBOUMDGOAYWTNIO.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4912 wrote to memory of 5872 4912 wscript.exe 79 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBOUMDGOAYWTNIO.exe
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\請求書.js1⤵
- Suspicious use of WriteProcessMemory
PID:4912 -
C:\Users\Public\Libraries\MSBOUMDGOAYWTNIO.exe"C:\Users\Public\Libraries\MSBOUMDGOAYWTNIO.exe" C:\Users\Public\Libraries\MSBOUMDGOAYWTNIO.ttf2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
PID:5872
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Public\Libraries\MSBOUMDGOAYWTNIO.exe
- 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\Public\Libraries\MSBOUMDGOAYWTNIO.ttf
- Size 563KB
- SHA256 39fbcc35e0da478f78e3620e8594b142c998aa2c8a9a83cd0e94ae5c482abac6
- MD5 3e56a87dc7853abfbc14ebf58b0b59f6
- SHA1 4e5d56352443b89ae0bc15a48034cdf718f41e7f
- SHA512 c34759b05e47be907d180939b9ed45c1ec6f4c09dada212d2d6fb5a63ec2b6dee4dd922eb0b595031fbcc104b77b44c94c76d77e68fa348d94f2d6aae93dfdc9
- SSDEEP 12288:9x43VT05/smKTeYLr/DUIfCYjFEqKoFSnuijIiPF0qmgzzk:9xmmceE7DUPlToFSnuijIiPF0qmgzzk
- TLSH T19FC44C8BB28F785C52F763E1CC3F4A9A70B589D5634D05270E84D0A5BE3132CCBE9A65
- MD5 SHA1 SHA512 SSDEEP TLSH