Analysis
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max time kernel
95s -
max time network
96s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
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submitted
16-09-2024 01:28
General
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Target
998328ecd3a13fd3287f88e37119064b3a4094d2e935786a5327d47e4ed4466b.exe
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Size
1.6MB
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MD5
6c1c6a49edcabab2dafc014937cd388d
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SHA1
03fb8fe4ecfb3f3967a6eee4edb1faf2b19c1924
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SHA256
998328ecd3a13fd3287f88e37119064b3a4094d2e935786a5327d47e4ed4466b
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SHA512
22c1e0cecfa8a7900fef22eeea9b4cd555bb3fef2b681ef464c2a6aac65990ce25acc399c17cbc57df238f26fb4bdb10da829163a78a3713994d95407d4a8b70
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SSDEEP
12288:ixEAmDzLDXtfwweWBc6IutzOBk+uynC6h/kUBPtKB/KN4+szCuVR32gWYXKP:caLDXtfwwVBPtzEJhBVKI4ZCuPmDYXKP
Malware Config
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.fosna.net - Port:
21 - Username:
[email protected] - Password:
u;4z3V.Iir1l
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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UAC bypass 3 TTPs 1 IoCs
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Windows security bypass 2 TTPs 2 IoCs
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Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Looks for VMWare Tools registry key 2 TTPs 1 IoCs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Windows security modification 2 TTPs 3 IoCs
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Checks whether UAC is enabled 1 TTPs 2 IoCs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
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Suspicious use of SetThreadContext 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of AdjustPrivilegeToken 3 IoCs
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Suspicious use of WriteProcessMemory 10 IoCs
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System policy modification 1 TTPs 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\998328ecd3a13fd3287f88e37119064b3a4094d2e935786a5327d47e4ed4466b.exe"C:\Users\Admin\AppData\Local\Temp\998328ecd3a13fd3287f88e37119064b3a4094d2e935786a5327d47e4ed4466b.exe"1⤵
- UAC bypass
- Windows security bypass
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Windows security modification
- Checks whether UAC is enabled
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\998328ecd3a13fd3287f88e37119064b3a4094d2e935786a5327d47e4ed4466b.exe" -Force2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
3Disable or Modify Tools
3Modify Registry
4Virtualization/Sandbox Evasion
2Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
5.6MB
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Filesize
40KB
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Filesize
584KB
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Filesize
320KB
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Filesize
264KB
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Filesize
408KB
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Filesize
10.8MB
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Filesize
10.8MB
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Filesize
10.8MB
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Filesize
136KB
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Filesize
10.8MB
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Filesize
8KB
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Filesize
10.8MB
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Filesize
10.8MB
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Filesize
592KB
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Filesize
96KB