Analysis
- max time kernel
149s - max time network
165s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
24/04/2026, 04:40
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3.exe
Resource
win10v2004-20260130-en
10 signatures
150 seconds
General
- Target 99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3.exe
- Size 912KB
- Sample260424-faxcpse18t
- SHA256 99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3
- MD5 d59c1d8398ba61756a9865d96a502b1c
- SHA1 d1d8821bb9f5b97dc12904e58e040337ef8a58d0
- SHA512 a25fd472936d17741d2f6a1996b054c958bb6e3411ad8364625040598ef50457dc68ead596d82e1ac4a01584d78a6f686e9b801a5788bb863020ec15e125bf4c
- SSDEEP 24576:z3Ub4MnHc3b5YI4Tz4OyTUnhSu0EewGc:bUsMHcFBgz4OyTu0jc
- TLSH T18C1522746A58E892D8C723720EB6E3B241E19EDCA491C366DDEEECDB756A071750C3C0
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
ftp
-
Host
ftp://ftp.transotraval.cl
-
Port
21
-
Username
-
Password
vIZ2P]dt&a!d
Signatures
- Family: AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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.
- 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 - SmartAssembly .NET packer 1 IoCs
Detects SmartAssembly .NET packer.
resource yara_rule behavioral2/memory/3300-6-0x0000000005680000-0x0000000005692000-memory.dmp SmartAssembly - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3300 set thread context of 5208 3300 99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3.exe 81 - System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 5208 99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3.exe 5208 99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 5208 99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3.exe - Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 3300 wrote to memory of 5208 3300 99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3.exe 81 PID 3300 wrote to memory of 5208 3300 99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3.exe 81 PID 3300 wrote to memory of 5208 3300 99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3.exe 81 PID 3300 wrote to memory of 5208 3300 99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3.exe 81 PID 3300 wrote to memory of 5208 3300 99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3.exe 81
Processes
-
C:\Users\Admin\AppData\Local\Temp\99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3.exe"C:\Users\Admin\AppData\Local\Temp\99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3300 -
C:\Users\Admin\AppData\Local\Temp\99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3.exe"C:\Users\Admin\AppData\Local\Temp\99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5208
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\99bf83bab6b3fa1205eb86a8c9ed9332a006fe63ff6d263847de7d53ee932de3.exe.log
- Size 1KB
- SHA256 4c17576f64dea465c45a50573ee41771f7be9962ab2d07f961af4df5589bdcce
- MD5 7e1ed0055c3eaa0bbc4a29ec1ef15a6a
- SHA1 765b954c1adbb6a6ecc4fe912fdaa6d0fba0ae7d
- SHA512 de7c784c37d18c43820908add88f08ab4864c0ef3f9d158cc2c9d1bab120613cb093dd4bfc5d7ed0c289414956cfe0b213c386f8e6b5753847dec915566297c8
- TLSH T102216B303231B5D84D422F5308586AC566FF0745BAB8DF6CB659235EDD2A047AF222F3
- MD5 SHA1 SHA512 TLSH