MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 5b13588741f33a75c4e277d1e38b875e3b495c31980a2a41d7c25a2fde3d398d. 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: | 5b13588741f33a75c4e277d1e38b875e3b495c31980a2a41d7c25a2fde3d398d |
|---|---|
| SHA3-384 hash: | 3b80317380f2aca3990f5cc6fa7da99e86b9bc1790e483aaff83d908a78b2a1a5b4f64000edfdbc6b31bae772204ce77 |
| SHA1 hash: | 2679c14011458aabd22df2f19e3e97f51fff69c9 |
| MD5 hash: | 961d3e5df9d3bf24a22e86fe7bfaf529 |
| humanhash: | jig-delaware-undress-earth |
| File name: | viporigin file.exe |
| Download: | download sample |
| Signature | AgentTesla |
| File size: | 423'635 bytes |
| First seen: | 2020-08-10 09:58:20 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 24f4223e271413c25abad52fd456a9bc (21 x GuLoader, 15 x Loki, 10 x AgentTesla) |
| ssdeep | 12288:jclD49gXSs2WjMT/lAZRuZTjzzpAkaqhZOs:jmDh5xATN28Nz9Akaq5 |
| Threatray | 664 similar samples on MalwareBazaar |
| TLSH | F39412E4E390C03BF9B60D355C351E957FEFAC1EA4861A0A9B50395974F2261C60FA8F |
| Reporter |  abuse_ch |
| Tags: | AgentTesla exe |
abuse_ch
Malspam distributing AgentTesla:HELO: box.nichtech.eu
Sending IP: 192.236.146.224
From: Linda Lim <info@dirllquest.com>
Subject: Over Due Payments
Attachment: doc009082020.img (contains "viporigin file.exe")
Intelligence
File Origin
# of uploads :
1
# of downloads :
75
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file in the %temp% directory
Creating a file
Creating a file in the %AppData% subdirectories
Launching a process
Sending a UDP request
Creating a window
Transferring files using the Background Intelligent Transfer Service (BITS)
Enabling the 'hidden' option for recently created files
Moving a file to the %AppData% subdirectory
Using the Windows Management Instrumentation requests
Reading critical registry keys
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
88 / 100
Signature
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Hijacks the control flow in another process
Installs a global keyboard hook
Machine Learning detection for sample
Maps a DLL or memory area into another process
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
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 harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Strictor
Status:
Malicious
First seen:
2020-08-10 06:04:54 UTC
AV detection:
28 of 48 (58.33%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 654 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Score:
10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Loads dropped DLL
Reads user/profile data of local email clients
Loads dropped DLL
Reads user/profile data of web browsers
AgentTesla Payload
ServiceHost packer
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
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: | 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
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.