MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fd81870ea6455334808d4a13d1f061c24391fd607bf5a4b40f9b35ead1ab4050. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.
Database Entry
AgentTesla
Vendor detections: 12
| SHA256 hash: | fd81870ea6455334808d4a13d1f061c24391fd607bf5a4b40f9b35ead1ab4050 |
|---|---|
| SHA3-384 hash: | ea5c10c8f8f5016c4df433fb304ca6bc458a5b85b350e14ef9ac354df5b760ba55b62c409e54e858537b322a53100ee3 |
| SHA1 hash: | 5db6749c9456f9f38842d2fc9107e764b71af57d |
| MD5 hash: | 0b72dc674ac3ebd74f610011b934be3f |
| humanhash: | kilo-summer-speaker-carolina |
| File name: | Contrato firmado.exe |
| Download: | download sample |
| Signature | AgentTesla |
| File size: | 1'050'624 bytes |
| First seen: | 2021-04-02 09:04:49 UTC |
| Last seen: | 2021-04-02 09:55:21 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 12288:8ctxTz5mEgRiV/v640MF41CtI+dR+m+owFPKHR0Z:8cvTzcPQ/l0v8tJmowG |
| Threatray | 3'917 similar samples on MalwareBazaar |
| TLSH | 79259D293F64658CC0AB07399464D10C9FE67DA9A9D2C2837EEE37DB6073F1307A4652 |
| Reporter |  GovCERT_CH |
| Tags: | AgentTesla |
Intelligence
File Origin
# of uploads :
2
# of downloads :
125
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Contrato firmado.exe
Verdict:
Malicious activity
Analysis date:
2021-04-02 09:09:17 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Agent Tesla
Verdict:
Malicious
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Found malware configuration
Injects a PE file into a foreign processes
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Detection:
agenttesla
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-04-01 11:05:51 UTC
AV detection:
16 of 29 (55.17%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
agenttesla
Similar samples:
+ 3'907 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Score:
10/10
Tags:
family:agenttesla evasion keylogger spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
AgentTesla
Unpacked files
SH256 hash:
276a1a0800999b80d42105000217a70fb36f6ec451518c0fc179498c6700f389
MD5 hash:
a596b0e8f6f938943653dfa448a03bb1
SHA1 hash:
12508a85cdd84419e7122be37547fef716f0c40e
SH256 hash:
fd81870ea6455334808d4a13d1f061c24391fd607bf5a4b40f9b35ead1ab4050
MD5 hash:
0b72dc674ac3ebd74f610011b934be3f
SHA1 hash:
5db6749c9456f9f38842d2fc9107e764b71af57d
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
YARA Signatures
MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.
| Rule name: | ach_AgentTesla_20200929 |
|---|---|
| Author: | abuse.ch |
| Description: | Detects AgentTesla PE |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables containing URLs to raw contents of a Github gist |
| Rule name: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | MALWARE_Win_AgentTeslaV3 |
|---|---|
| Author: | ditekSHen |
| Description: | AgentTeslaV3 infostealer payload |
| Rule name: | win_agent_tesla_v1 |
|---|---|
| Author: | Johannes Bader @viql |
| Description: | detects Agent Tesla |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Dropped by
AgentTesla
Delivery method
Distributed via e-mail attachment
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