MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7721ec8a960e682c4f22349c931755e7feac2ab6ecf04dd25ad3dc7d6faef298. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7721ec8a960e682c4f22349c931755e7feac2ab6ecf04dd25ad3dc7d6faef298
SHA3-384 hash: 487b8b2bb0d9bcc85a2353340eeb9aba3baedba0d531037d3748cbde5e87722471b896768ed8e6d68413173a24ae2f1a
SHA1 hash: d00c4b9df0849382a7f1662c86c716bcb44a0126
MD5 hash: 6e1c9d0dce5cfa842ef273dc4883a11f
humanhash: vermont-whiskey-fourteen-march
File name:KLL.SZX 202110 D27365.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:550'400 bytes
First seen:2021-11-29 04:51:47 UTC
Last seen:2021-11-29 18:06:42 UTC
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:vdpYcrq3cPCjQ7AlpIHD7+VzzLSgnpqZ7afPBH:VpYcrbSQ7JHuUgC7aHBH
Threatray 13'065 similar samples on MalwareBazaar
TLSH T181C42310323CD236C77E49B5502907882AB8710A2D61C35EF7A5718F5DD3B8BBB89A4B
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
153
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
KLL.SZX 202110 D27365.exe
Verdict:
Malicious activity
Analysis date:
2021-11-29 04:52:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/012994be-c3a5-48af-8176-7b24b5af6996

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Inject4.21003.29120.5671.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61a45c75effcae2254f421b4/reports/9f298fd7-ed61-473d-aa92-f6bb57abc3ed/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2db5f57d-682b-4677-b7bf-bf4c8f534841
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/897688
Signature
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Modifies the hosts file
Multi AV Scanner detection for domain / URL
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: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 530166 Sample: KLL.SZX 202110 D27365.exe Startdate: 29/11/2021 Architecture: WINDOWS Score: 100 60 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->60 62 Multi AV Scanner detection for domain / URL 2->62 64 Multi AV Scanner detection for dropped file 2->64 66 11 other signatures 2->66 7 KLL.SZX 202110 D27365.exe 7 2->7         started        11 kprUEGC.exe 4 2->11         started        13 kprUEGC.exe 2->13         started        process3 file4 44 C:\Users\user\AppData\...\zSnawJRngLure.exe, PE32 7->44 dropped 46 C:\Users\user\AppData\Local\...\tmp7745.tmp, XML 7->46 dropped 48 C:\Users\...\KLL.SZX 202110 D27365.exe.log, ASCII 7->48 dropped 68 Adds a directory exclusion to Windows Defender 7->68 15 KLL.SZX 202110 D27365.exe 2 5 7->15         started        20 powershell.exe 25 7->20         started        22 schtasks.exe 1 7->22         started        70 Multi AV Scanner detection for dropped file 11->70 72 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->72 74 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 11->74 24 powershell.exe 11->24         started        26 schtasks.exe 11->26         started        28 kprUEGC.exe 11->28         started        signatures5 process6 dnsIp7 50 mail.sautiyapwanifm.com 198.187.31.108, 49841, 587 NAMECHEAP-NETUS United States 15->50 38 C:\Users\user\AppData\Roaming\...\kprUEGC.exe, PE32 15->38 dropped 40 C:\Windows\System32\drivers\etc\hosts, ASCII 15->40 dropped 42 C:\Users\user\...\kprUEGC.exe:Zone.Identifier, ASCII 15->42 dropped 52 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->52 54 Tries to steal Mail credentials (via file / registry access) 15->54 56 Tries to harvest and steal ftp login credentials 15->56 58 4 other signatures 15->58 30 conhost.exe 20->30         started        32 conhost.exe 22->32         started        34 conhost.exe 24->34         started        36 conhost.exe 26->36         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7721ec8a960e682c4f22349c931755e7feac2ab6ecf04dd25ad3dc7d6faef298/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2021-11-29 00:47:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o4q6zcuwbzucytzcgsojgf2v477kykvw5tye3us22poh235o6kma._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
263b3150d2f7df08c60b0c7e677dc36e286aa987bc0852a8ebb64b96414cc809
AgentTesla
268bc95ab6377e7adf53807b9f11f41fab21e4ee82a8e6e7ed2cde84de605ff6
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371793ef15c6e1d0b0ab0edf326d4ab60ba5ce8cf26676fcc1ebd6329a23e914
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45c22ef191a04d054c8a9e4f873c8ccfe34527944da8c9f60dbb656c7a1dd30e
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5e922ebd226625e778e389b73f24b5e0a876139697b2dcb2e93b060303b81471
AgentTesla
7c49ac4366eb07c5e5a146356908ba9e2e7e1bb2630422821f93530f0e2ec2ed
AgentTesla
88d6342ccae8c8af4195bcb8c8d41230821ff2d1d5d559e074e240d903af840d
AgentTesla
a0fc7a3730fb9125bd92aa5f06e1942ae159a2030e228bc718fefac556a81a5c
AgentTesla
b4c4042d015ad6b2d72685db71fb526ba53df98dfd609d25b70e6186835ecd6f
AgentTesla
f2551f02675f06efffbc9dd02a40d7ad1e21f8d6229cf47b1725ced9887ab706
AgentTesla
+ 13'055 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/211129-fhesmaeeg3/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
69746cebb5b829280be1c95ea35b1dd119251ac685695d46d14de97b06ae1a6d
MD5 hash:
5e1eee13724877eb3c98b15ff6238e9e
SHA1 hash:
f864445bc39b087db4b25ae32152c46601bad3b6
Link:
https://www.unpac.me/results/0c7315a3-6a29-447d-9714-da2a6e1a9cc5/
SH256 hash:
e510e18e72648a1de42d4dea1a41cc5927e7a53b5c2beb4ecdb52c2dbc630455
MD5 hash:
f3e52a67b6ad322f0edd8adc82548884
SHA1 hash:
adb2a8d84bb90b2dc0bb58422296311c9a226e45
Link:
https://www.unpac.me/results/0c7315a3-6a29-447d-9714-da2a6e1a9cc5/
SH256 hash:
b19104b568ca3ddccc2a8d3d10ecddb1ea240171e798dc3a486292cfa14b6365
MD5 hash:
7b0900da932f4ed9630d65b04422736d
SHA1 hash:
6fa340436e3a8e73ae2b3e911f861483183c68ef
Link:
https://www.unpac.me/results/0c7315a3-6a29-447d-9714-da2a6e1a9cc5/
SH256 hash:
7721ec8a960e682c4f22349c931755e7feac2ab6ecf04dd25ad3dc7d6faef298
MD5 hash:
6e1c9d0dce5cfa842ef273dc4883a11f
SHA1 hash:
d00c4b9df0849382a7f1662c86c716bcb44a0126
Link:
https://www.unpac.me/results/0c7315a3-6a29-447d-9714-da2a6e1a9cc5/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/7721ec8a960e/report/overview.html
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/7721ec8a960e682c4f22349c931755e7feac2ab6ecf04dd25ad3dc7d6faef298

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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

Executable exe 7721ec8a960e682c4f22349c931755e7feac2ab6ecf04dd25ad3dc7d6faef298

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments