MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 188b806e1f68912656bb5156317e03ee2927658f4879edeabb6a2bae0406f1f9. 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

Intelligence 9 IOCs YARA 4 File information Comments

SHA256 hash:	188b806e1f68912656bb5156317e03ee2927658f4879edeabb6a2bae0406f1f9
SHA3-384 hash:	6eef017ce957c5b8f112250c5014df0a8f042cf5e9c79a1bcf8539b9a625dd8a3536d79f694a168e25b5e285aa35cc2d
SHA1 hash:	9cbaf0d5794c0c09f0e54591524815d7c3661e75
MD5 hash:	021f4f60f06791179da41cb49ef75b20
humanhash:	rugby-fix-spring-hot
File name:	QUOTE B1020403.pdf.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	583'680 bytes
First seen:	2020-08-19 05:11:37 UTC
Last seen:	2020-08-22 21:26:40 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep	12288:Qq2bhx0sIfNlzSTFa2MU37nicYFkP1vW9UEfmtVPW2SYUk0CB:lshxgeTUU0FkIPet
Threatray	10'597 similar samples on MalwareBazaar
TLSH	53C4BF9A7110329EC42BF8F685100CA29AA2AC7B531BE253507336FD5A7D593CF251BF
Reporter	cocaman
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/48199/

Detection(s):

Sanesecurity.Rogue.0hr.20200819-1905.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

Launching a process

Creating a file

Using the Windows Management Instrumentation requests

Forced shutdown of a system process

Unauthorized injection to a system process

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/436505

Signature

Found malware configuration

Initial sample is a PE file and has a suspicious name

Injects a PE file into a foreign processes

Machine Learning detection for sample

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 harvest and steal ftp login credentials

Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)

Tries to steal Mail credentials (via file access)

Uses an obfuscated file name to hide its real file extension (double extension)

Writes to foreign memory regions

Yara detected AgentTesla

Yara detected AntiVM_3

Behaviour

Behavior Graph:

Download SVG

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/188b806e1f68912656bb5156317e03ee2927658f4879edeabb6a2bae0406f1f9/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2020-08-19 02:36:01 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

24 of 29 (82.76%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=dcfya3q7ncismvv3kfldc7qd5yusozmpjb4632v3niv24bag6h4q._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

32dbfe6f42c146969736602b95b0886e6c66e68c36d24e97c45ac6b9f9d490b1

AgentTesla

3d009dd1124fdf76e4a5284fa421d54a0ec663abc1517bbf95c809bb36dd8863

AgentTesla

4b6a3f081e8c3446ceda38794bf4922dff17d04cd79759b4bd543b0c5df7a4a3

AgentTesla

51868d20e4a12a9c843de2e2265cd8fc72577d511d73a5451e8b891654e546bf

AgentTesla

551ef049bccb7a04aded3d024be74e299bbd9c39b4ede5eff98606f89b9ae44e

AgentTesla

6592c22fa9ba295820bfa259711ec8592417ba1048e3b8baea6a39cc0e95bca3

AgentTesla

7dc944bd0d2dafb252d4388f45a7d624ac5b6cf79ddfe72e3b5fb2db08ab1850

AgentTesla

82fed36e33e28ea2575e1d8e17ab4b34f03f72903f7b48ddaec1e2d021bb2c6d

AgentTesla

fb3509272ff65cf1f3521d230d912afde3af02dcf203ad045e020a4fd86ddca0

AgentTesla

+ 10'587 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer spyware trojan family:agenttesla

Link:

https://tria.ge/reports/200819-176qy4ptgj/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Reads data files stored by FTP clients

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:

Trojan

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/188b806e1f68912656bb5156317e03ee2927658f4879edeabb6a2bae0406f1f9

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 Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Agenttesla in memory
Reference:	internal research

Rule name:	CAP_HookExKeylogger Create hunting rule
Author:	Brian C. Bell -- @biebsmalwareguy
Reference:	https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar