Analysis
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max time kernel
121s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
15-01-2025 01:23
General
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Target
NEW SIGNED CONTRACTS.exe
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Size
719KB
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MD5
c8c2b93f8b79377e5d346edfbf9504b3
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SHA1
0e38e95f3cdba184363c9b2930a5f4d7d84895c2
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SHA256
58800a690eb8217cf31f262261c856ceb8b73a580b1daab25f1cdac61394f918
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SHA512
1d1dc875502359ee460fe6ad3437cfe3c511b9a18916a95f21ce3d5eae389b32029dc5f943d64f115cafaeb58d140b965a51bb5f6b837aadf0f1243c7d7fc571
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SSDEEP
12288:ufZYRxA4Y5lyA/BxSPCn2m9ugFv4ji7X6RejFjb4+Z8ZLe9MQcIneW1caCoLXz4E:DRa2mAqUijSej9b4K+LccOeN4Xz4H1
Malware Config
Extracted
Protocol: smtp- Host:
mail.stilbo.eu - Port:
587 - Username:
[email protected] - Password:
StilBO_#1
Extracted
agenttesla
Protocol: smtp- Host:
mail.stilbo.eu - Port:
587 - Username:
[email protected] - Password:
StilBO_#1 - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Agenttesla family
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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.
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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 WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
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Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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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 5 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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Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 6 IoCs
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Suspicious use of AdjustPrivilegeToken 3 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\NEW SIGNED CONTRACTS.exe"C:\Users\Admin\AppData\Local\Temp\NEW SIGNED CONTRACTS.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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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\NEW SIGNED CONTRACTS.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DPgPZhZIZ.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DPgPZhZIZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFF5F.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Local\Temp\NEW SIGNED CONTRACTS.exe"C:\Users\Admin\AppData\Local\Temp\NEW SIGNED CONTRACTS.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
3Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD55f6cdbf35f731eac050accc8b06bc6e8
SHA1fa082a7f5d14827d377ab283fcc667476e5d7abb
SHA25650577374a640156ff9e7397223bcf15e9e6815c776a8eaf07cac560e363d445c
SHA512e18fd6149edc4e3eaadbab95d7e1f499a0d3719c1d64d737b648730f0775618b0b3e8a1a323deb96b9fdf70f0f68f7f71dcd8b6ea3b53b5f3b0dfb58319422c0
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5c7b167ed690816c8aa00170bc82d2729
SHA10b2ac47efd70f5cc972c1cf1c3b45ac7a9c2d996
SHA256e7248209b624d9e7923dac70560fd0f2ac320ca90486aff25d071fc27a22b90b
SHA512e369bc359ad1d449d338f7b7c4d5f32dbcadcdc7bc07e583bea245ce1877b67e06343bb66252aa6928685fe4693af7f06d1917eb8451cb2a0ca697d8e25c6dd3
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Filesize
320KB
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Filesize
256KB
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Filesize
7.7MB
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Filesize
80KB
-
Filesize
304KB
-
Filesize
120KB
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Filesize
652KB
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Filesize
7.7MB
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Filesize
6.5MB
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Filesize
7.7MB
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Filesize
68KB
-
Filesize
200KB
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Filesize
7.7MB
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Filesize
3.3MB
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Filesize
4KB
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Filesize
584KB
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Filesize
5.6MB
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Filesize
40KB
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Filesize
7.7MB
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Filesize
4KB
-
Filesize
744KB
-
Filesize
104KB
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Filesize
7.7MB
-
Filesize
624KB
-
Filesize
536KB
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Filesize
7.7MB
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Filesize
7.7MB
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Filesize
304KB
-
Filesize
304KB
-
Filesize
120KB
-
Filesize
136KB
-
Filesize
104KB
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Filesize
40KB
-
Filesize
600KB
-
Filesize
408KB
-
Filesize
56KB
-
Filesize
408KB
-
Filesize
104KB
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Filesize
32KB
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Filesize
7.7MB
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Filesize
7.7MB
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Filesize
6.2MB
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Filesize
7.7MB
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Filesize
216KB