MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ef91cdf4d2ae2a3dd427b89bf9a2e057ec1f6308aba537b7d808e999bb9815f8. 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: 8
| SHA256 hash: | ef91cdf4d2ae2a3dd427b89bf9a2e057ec1f6308aba537b7d808e999bb9815f8 |
|---|---|
| SHA3-384 hash: | ca5bab603896b683f7caa581b0920a1103ee2def16442406b27b1b80e7d40b42420f47a3cae02e9f4a823731c7885160 |
| SHA1 hash: | 536dbdee9f21aae4dab48ff3fc49524bd9d631f7 |
| MD5 hash: | b4dab072f40f251df2fdb3012e40b237 |
| humanhash: | connecticut-eighteen-black-jupiter |
| File name: | SecuriteInfo.com.Trojan.Packed2.41837.28065.29169 |
| Download: | download sample |
| Signature | AgentTesla |
| File size: | 296'960 bytes |
| First seen: | 2020-11-02 20:48:41 UTC |
| Last seen: | 2020-11-08 14:19:17 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'202 x SnakeKeylogger) |
| ssdeep | 3072:mdtCFxAq4lH3ByrYTRf+KYzHm4h3BJ1bmpAaSAA2hH3ZxkA3azVW0364Ls8soQWj:cJNHVWKgRogqjMI03645QW8f4HcFa |
| Threatray | 899 similar samples on MalwareBazaar |
| TLSH | 505422967EB667A7CE1B09B945C383C0573CE4727A40D3BC2C9832645E75BB089A1F36 |
| Reporter |  SecuriteInfoCom |
| Tags: | AgentTesla |
Intelligence
File Origin
# of uploads :
2
# of downloads :
99
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Adding an access-denied ACE
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Unauthorized injection to a recently created process
Using the Windows Management Instrumentation requests
Enabling autorun
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.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Contains functionality to register a low level keyboard hook
Creates an undocumented autostart registry key
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
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)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Heracles
Status:
Malicious
First seen:
2020-11-02 13:00:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
26 of 29 (89.66%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
agenttesla
Similar samples:
+ 889 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
10/10
Tags:
persistence spyware
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Modifies WinLogon for persistence
Unpacked files
SH256 hash:
ec57d422c6f5e105592772fca64c944c1d169bce8bc20338d0373ae572d0175f
MD5 hash:
0bd167d1e620eed0b2abf827b9f81e21
SHA1 hash:
a380848141fbacd1508b5f1b358a62f644c4b444
SH256 hash:
ef91cdf4d2ae2a3dd427b89bf9a2e057ec1f6308aba537b7d808e999bb9815f8
MD5 hash:
b4dab072f40f251df2fdb3012e40b237
SHA1 hash:
536dbdee9f21aae4dab48ff3fc49524bd9d631f7
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: | 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.
Web download
Delivery method
Distributed via web download
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