MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4f6528ed4920421f4e4b8685fb35e1bb573af090bdd1fccab34f3f2bd269cc2. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4f6528ed4920421f4e4b8685fb35e1bb573af090bdd1fccab34f3f2bd269cc2
SHA3-384 hash: c2132ec39aca3f155e5eb135fc5175f62c317fc2fbf75ee809a3b7fdc09f43200f995927ca511870715c8fe8eb0a4394
SHA1 hash: 7fb3f0d9fe2ba4fadb3b937e7e34e7f040c0a808
MD5 hash: d0c35cf63ea01d192024c54f676ab3bf
humanhash: victor-jersey-ink-hawaii
File name:d0c35cf63ea01d192024c54f676ab3bf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:692'736 bytes
First seen:2021-03-19 15:13:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:ieaOvMFDuqVQ0P2eKC6LTR/BWd9IQ2OCqbvCO8vHiRlP8sFsTSWtPy:iaMFDuqVQ0JKC6/R/BAIQ2OXCOwHKPUQ
Threatray 3'903 similar samples on MalwareBazaar
TLSH 70E4D0A93301AF4ECE398E79D4523800E7E0DAF6C117E7875DE214DA4A4D7AD8DEA1C1
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
AgentTesla SMTP exfil server:
us2.smtp.mailhostbox.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
218
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INVC AND PACKN LIST.xlsx
Verdict:
Malicious activity
Analysis date:
2021-03-19 14:11:21 UTC
Tags:
encrypted exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/e7f09195-40dc-4981-9371-df3a8ecaa388

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/125673/
Detection(s):
SecuriteInfo.com.Variant.Bulz.400665.6593.20005.UNOFFICIAL
Create hunting rule

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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d95ed801-2bd1-43e4-88a8-6c352899a783
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/646312
Signature
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
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 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 schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 372123 Sample: 1AeGPmeGy3.exe Startdate: 19/03/2021 Architecture: WINDOWS Score: 100 39 Found malware configuration 2->39 41 Multi AV Scanner detection for dropped file 2->41 43 Sigma detected: Scheduled temp file as task from temp location 2->43 45 7 other signatures 2->45 7 1AeGPmeGy3.exe 7 2->7         started        process3 file4 27 C:\Users\user\AppData\Roaming\RZgUaQ.exe, PE32 7->27 dropped 29 C:\Users\user\...\RZgUaQ.exe:Zone.Identifier, ASCII 7->29 dropped 31 C:\Users\user\AppData\Local\...\tmpC492.tmp, XML 7->31 dropped 33 C:\Users\user\AppData\...\1AeGPmeGy3.exe.log, ASCII 7->33 dropped 47 Uses schtasks.exe or at.exe to add and modify task schedules 7->47 49 Writes to foreign memory regions 7->49 51 Allocates memory in foreign processes 7->51 53 2 other signatures 7->53 11 RegSvcs.exe 4 7->11         started        15 powershell.exe 24 7->15         started        17 powershell.exe 26 7->17         started        19 schtasks.exe 1 7->19         started        signatures5 process6 dnsIp7 35 us2.smtp.mailhostbox.com 208.91.199.225, 49740, 587 PUBLIC-DOMAIN-REGISTRYUS United States 11->35 37 192.168.2.1 unknown unknown 11->37 55 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->55 57 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->57 59 Tries to steal Mail credentials (via file access) 11->59 61 4 other signatures 11->61 21 conhost.exe 15->21         started        23 conhost.exe 17->23         started        25 conhost.exe 19->25         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a4f6528ed4920421f4e4b8685fb35e1bb573af090bdd1fccab34f3f2bd269cc2/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-03-19 11:32:19 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ut3ffdwusiccd5hexbuf7m26do2xhlyjbpor7tflgtz7fpjgttba._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
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94b3e37a5c039221040999418b83ab8338b165db38255ec81bc41f3a8ad2e6df
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9f8eb6ad902381309cc7c6ec879569cbe597d4744e36f12688de5a9d3d7c93d5
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af805b85496d42871d49fe7e96eb45560977df45bd9e052fac8e6ccc1bf1ef1b
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d6fb2cc76af0dcfa70d3d5fc195584fc5eaae14520e30b8d2a624e75af5627d4
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e2fe2d1e75e2a0f6e9607f0983b71ab13dacfb2e62e5877bb7a6309463250b77
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ead0f6ef88c149f4318129ed6e3ef5fb30bd2ab03afef3625ca08d1b2f6f180e
AgentTesla
+ 3'893 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210319-558m4ynt8a/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
2b43013edb5706a946f4e523a1a219b31fe2a7e05c48884c048882b3c1327655
MD5 hash:
b7159eb14fe565d4e233604b629bbd8a
SHA1 hash:
64f82c67e6c7cbc078141162a49bffcee3d9ebb9
Link:
https://www.unpac.me/results/3714c440-885f-4228-831a-0826dbe36ced/
SH256 hash:
a4f6528ed4920421f4e4b8685fb35e1bb573af090bdd1fccab34f3f2bd269cc2
MD5 hash:
d0c35cf63ea01d192024c54f676ab3bf
SHA1 hash:
7fb3f0d9fe2ba4fadb3b937e7e34e7f040c0a808
Link:
https://www.unpac.me/results/3714c440-885f-4228-831a-0826dbe36ced/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a4f6528ed4920421f4e4b8685fb35e1bb573af090bdd1fccab34f3f2bd269cc2

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
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:win_agent_tesla_v1
Create hunting rule
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

AgentTesla

Executable exe a4f6528ed4920421f4e4b8685fb35e1bb573af090bdd1fccab34f3f2bd269cc2

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1077414/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/125673/

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