MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b721ad1095cc2da03c67056a937f57372d28029bc5556d037364fd9c77bae3fb. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b721ad1095cc2da03c67056a937f57372d28029bc5556d037364fd9c77bae3fb
SHA3-384 hash: e00d11e1382b4e7b11d61c4d4b4798f5a8a5fd012f3801c4b040f4995956d6820b6f8592a93b4ef8b275cd8839d43430
SHA1 hash: d371bc0a04f80b08f38ed36f923861b81bc31c2e
MD5 hash: d30790baf18c2afa2ae2078e7172e03e
humanhash: zulu-red-illinois-oklahoma
File name:e-dekont.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:45'056 bytes
First seen:2023-08-17 18:25:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:Xn3Y16f8mtBVgu8S9An8YkLASCmulZ6YHB3UZI/D6MzDvkZ:33V8mtBVgu8XnoLHCZ6IEZS68DvU
Threatray 5'634 similar samples on MalwareBazaar
TLSH T1AB134C046B8CA626C76C25BECDB524880BF492F73D13D38B8DC562A83D537E95501FAB
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter abuse_ch
Tags:AgentTesla exe geo TUR

Intelligence

File Origin
# of uploads :
1
# of downloads :
269
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
e-dekont.exe
Verdict:
Malicious activity
Analysis date:
2023-08-17 18:43:37 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/6fa4ea33-cafb-40b7-8d0e-ab5655eae5e3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/443324/
Detection(s):
SecuriteInfo.com.Trojan.DownLoaderNET.721.28039.20233.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
DNS request
Launching a process
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b721ad1095cc2da03c67056a937f57372d28029bc5556d037364fd9c77bae3fb
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/859b3a47-ffa6-4dfb-aab1-746a9100901d
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1293062
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops VBS files to the startup folder
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Drops script at startup location
Snort IDS alert for network traffic
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 / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1293062 Sample: e-dekont.exe Startdate: 17/08/2023 Architecture: WINDOWS Score: 100 44 Snort IDS alert for network traffic 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 10 other signatures 2->50 7 wscript.exe 1 2->7         started        9 e-dekont.exe 15 5 2->9         started        process3 dnsIp4 14 Yraqxjykw.exe 14 5 7->14         started        30 web.fe.1drv.com 9->30 32 onedrive.live.com 9->32 34 2 other IPs or domains 9->34 24 C:\Users\user\AppData\Roaming\Yraqxjykw.exe, PE32 9->24 dropped 26 C:\Users\user\AppData\...\Yraqxjykw.vbs, ASCII 9->26 dropped 56 Drops VBS files to the startup folder 9->56 58 Writes to foreign memory regions 9->58 60 Injects a PE file into a foreign processes 9->60 18 MSBuild.exe 14 2 9->18         started        file5 signatures6 process7 dnsIp8 36 web.fe.1drv.com 14->36 38 onedrive.live.com 14->38 42 2 other IPs or domains 14->42 62 Antivirus detection for dropped file 14->62 64 Multi AV Scanner detection for dropped file 14->64 66 Machine Learning detection for dropped file 14->66 72 2 other signatures 14->72 20 MSBuild.exe 14->20         started        40 discord.com 162.159.136.232, 443, 49740, 49743 CLOUDFLARENETUS United States 18->40 68 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->68 70 Tries to steal Mail credentials (via file / registry access) 18->70 signatures9 process10 dnsIp11 28 discord.com 20->28 52 Tries to steal Mail credentials (via file / registry access) 20->52 54 Tries to harvest and steal browser information (history, passwords, etc) 20->54 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b721ad1095cc2da03c67056a937f57372d28029bc5556d037364fd9c77bae3fb/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-08-16 12:03:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w4q22eevzqw2apdhavvjg72xg4wsqau3yvkw2a3tmt6zy5524p5q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1fd14ee51fa3f0523672ac0a47423d06c76cf88960c11dd42c65dbc2ffdb3e4d
AgentTesla
41cc436ff239f814a313cea6f211b9bd91e8aff835f5f3bf2ed0ccefbd324149
AgentTesla
5f4896ab53539a862055102c4433ae9ba78220915a2358552ab7d5ec081a68d0
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6e85ae5489a02c4209e4eb062b52e6dece076e12663e7aaa2e8e497664643a8d
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9f67e7fe9d42fd8fdb38ad26d81b93a2d6bf143e3ca5b7ca72733605b2dc2f5b
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a04182cb18b9bba60134d31518fef14b138c40a631bd09c098a7cdd875f7daa2
AgentTesla
a37c009a14513400e1703af1bd68355a4f9174898eb1af7e1e51bd9acdc0f55d
AgentTesla
d8ed3fb0de9b294adf3d48b7149010d51b01a9f9b262581aff015f1318999671
AgentTesla
f063fd1548945689a8b519daf454193e128bfca6c8b3b061f0ce7185b71412a8
AgentTesla
+ 5'624 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230817-w27whsca82/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Drops startup file
Unpacked files
SH256 hash:
b721ad1095cc2da03c67056a937f57372d28029bc5556d037364fd9c77bae3fb
MD5 hash:
d30790baf18c2afa2ae2078e7172e03e
SHA1 hash:
d371bc0a04f80b08f38ed36f923861b81bc31c2e
Link:
https://www.unpac.me/results/d39dfa80-2a1a-411e-949f-6743f1af8aee/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b721ad1095cc/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/b721ad1095cc2da03c67056a937f57372d28029bc5556d037364fd9c77bae3fb

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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 b721ad1095cc2da03c67056a937f57372d28029bc5556d037364fd9c77bae3fb

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/443324/

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