MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ac91a92482a83fc39b66e0e3f6c46839fd77d16316c38830a9921ca707e824af. 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: 9
| SHA256 hash: | ac91a92482a83fc39b66e0e3f6c46839fd77d16316c38830a9921ca707e824af |
|---|---|
| SHA3-384 hash: | 210dc1056974e5c9ba5f3a5304f3a7acc54333379a07451b0fce64f45b56931409f95e0f96cc8a29ffed9a18e29000ab |
| SHA1 hash: | 10cc46bddfba53ee47579252672470f84a3e3853 |
| MD5 hash: | 07c4b11a9ae9fa3e3aaf32d4573ed3d0 |
| humanhash: | iowa-nitrogen-golf-two |
| File name: | Swift copy.exe |
| Download: | download sample |
| Signature | AgentTesla |
| File size: | 772'608 bytes |
| First seen: | 2020-08-14 08:22:03 UTC |
| Last seen: | 2020-08-14 09:02:25 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:RYeLcXpWxBt03+h03+gLweexLfgY78OBycLlqeLxrdCCYzwOH4Q25Dvh:LcXp+/03+h03+gLLexjgY7xy28sRe0OG |
| Threatray | 9'812 similar samples on MalwareBazaar |
| TLSH | 03F4E05063A59573E57A7E305632161007B7BCA77A3EC30E0BDE72CF98217AC8A11B76 |
| Reporter |  abuse_ch |
| Tags: | AgentTesla exe |
abuse_ch
Malspam distributing AgentTesla:HELO: m30.nskorea.com
Sending IP: 110.45.231.30
From: Citi Newyork<Peter.Zeller@citibk.com>
Reply-To: <Peter.Zeller@citibk.com>
Subject: Swift/TT copy in your favour.
Attachment: Swift copy.zip (contains "Swift copy.exe")
AgentTesla SMTP exfil server:
mail.dicera.com:587
Intelligence
File Origin
# of uploads :
2
# of downloads :
66
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Binary contains a suspicious time stamp
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Sigma detected: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-08-14 08:23:08 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
agenttesla
Similar samples:
+ 9'802 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Score:
10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Starter
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: | Agenttesla_type2 |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Agenttesla in memory |
| Reference: | internal research |
| Rule name: | CAP_HookExKeylogger |
|---|---|
| Author: | Brian C. Bell -- @biebsmalwareguy |
| Reference: | https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar |
| Rule name: | RSharedStrings |
|---|---|
| Author: | Katie Kleemola |
| Description: | identifiers for remote and gmremote |
| Rule name: | win_agent_tesla_w1 |
|---|---|
| Author: | govcert_ch |
| Description: | Detect Agent Tesla based on common .NET code sequences |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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