MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5e91a8c8d4fee4b4d8236b1b545906842b85d6c60c89d6fce70c94ec14ad6e6. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f5e91a8c8d4fee4b4d8236b1b545906842b85d6c60c89d6fce70c94ec14ad6e6
SHA3-384 hash: 64839d4f367d617c7b827fe0274691be656ff38662c02a37b113e4371945ac325aeef409b89a6bad2547fb458ec8418b
SHA1 hash: 90543ac8f22527fffc251845de95ecdd60f12c65
MD5 hash: 91b90ae0a0ba8c5091bfc9f12c52a453
humanhash: victor-equal-monkey-mango
File name:SecuriteInfo.com.BackDoor.SpyBotNET.25.15894.9267
Download: download sample
Signature AgentTesla
Create hunting rule
File size:483'328 bytes
First seen:2020-10-15 21:47:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:9gD/3Jrpq+AKa21mAubmpH/X9wh2CLoo:eD/3dD7Z1mOpfX99Ch
Threatray 274 similar samples on MalwareBazaar
TLSH EEA4BFB27D92547ECA6F0B7550AA85C1FAB616C73F608B0D719F430C0E01A2BEB5725B
Reporter SecuriteInfoCom
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
1
# of downloads :
83
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/71616/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.15894.9267.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Sending a UDP request
Creating a window
Creating a file
Running batch commands
Launching a process
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/493050
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Creates an autostart registry key pointing to binary in C:\Windows
Drops PE files to the user root directory
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
Tries to detect virtualization through RDTSC time measurements
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 298974 Sample: SecuriteInfo.com.BackDoor.S... Startdate: 15/10/2020 Architecture: WINDOWS Score: 92 35 Multi AV Scanner detection for submitted file 2->35 37 Yara detected AgentTesla 2->37 39 .NET source code contains potential unpacker 2->39 41 2 other signatures 2->41 7 SecuriteInfo.com.BackDoor.SpyBotNET.25.15894.exe 9 2->7         started        11 pcalua.exe 1 2->11         started        13 pcalua.exe 1 1 2->13         started        process3 file4 27 C:\Users\user\uobdsg.exe, PE32 7->27 dropped 29 C:\Users\user\uobdsg.exe:Zone.Identifier, ASCII 7->29 dropped 31 SecuriteInfo.com.B...ET.25.15894.exe.log, ASCII 7->31 dropped 33 2 other files (none is malicious) 7->33 dropped 51 Drops PE files to the user root directory 7->51 53 Tries to detect virtualization through RDTSC time measurements 7->53 15 cmd.exe 1 7->15         started        17 uobdsg.exe 2 7->17         started        19 uobdsg.exe 3 11->19         started        signatures5 process6 signatures7 22 reg.exe 1 1 15->22         started        25 conhost.exe 15->25         started        43 Multi AV Scanner detection for dropped file 19->43 45 Machine Learning detection for dropped file 19->45 47 Tries to detect virtualization through RDTSC time measurements 19->47 process8 signatures9 49 Creates an autostart registry key pointing to binary in C:\Windows 22->49
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f5e91a8c8d4fee4b4d8236b1b545906842b85d6c60c89d6fce70c94ec14ad6e6/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-15 20:56:09 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6xurvdenj7xewtmcg2y3krmqnbblqxlmmdej236oodeu5qkk23ta._file
Verdict:
unknown
Similar samples:
050daf7c3451797914a6a6a1dc62caf6e739a1177030b91a918b5686df7ec77a
AgentTesla
2a98548d44123e8fd77535fd77d107c0fb675cd269bdd82a95e8c5127c62fcc8
AgentTesla
333a258f45e7a8baaab72b1539859a00bca7309a8d641490329184977090b540
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4f9f51057147aed7f7d89b6261557fc2cc27c60ef13d0eab5b054aec2e658b29
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53a55d9370ca3596d51b4b22a9b1808ed8f60eedf8d11bc8b81b33d068028fad
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87d8ef6a4c6bf661d7957a62b9e8e9ea6627f80227f9ea88502bf601b94a960e
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9a0f13aaacc9774750adc92ab35b8e9abbc7eeba12b62a3ef3197a88fad675fb
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9ac3db8027c9eefbba6e112514370a2c4b35d04380540b04deaa91dc92cc3e9b
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b76efd5481457c3cc47629fbb3a406b85cbbdf0058b295f918e73c4a0b63ae52
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dcdf9338be399d3f441d940e06370af20cff1719876d62774f0eff3254265d1d
AgentTesla
+ 264 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla persistence
Link:
https://tria.ge/reports/201015-tzawtn5592/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Executes dropped EXE
AgentTesla
Unpacked files
SH256 hash:
f5e91a8c8d4fee4b4d8236b1b545906842b85d6c60c89d6fce70c94ec14ad6e6
MD5 hash:
91b90ae0a0ba8c5091bfc9f12c52a453
SHA1 hash:
90543ac8f22527fffc251845de95ecdd60f12c65
Link:
https://www.unpac.me/results/7a7b9458-03d4-4772-8a1e-a68b5c3e21f0/
SH256 hash:
19d9922060be89a70b76e5c0056e751f1baa5d41819235c92cf4f5d7668e1267
MD5 hash:
811864a0b06c529af894a7fec6ddbf47
SHA1 hash:
d35b82933eb06a6ec60e8cbbdb65eb6cdcaeb6d2
Link:
https://www.unpac.me/results/7a7b9458-03d4-4772-8a1e-a68b5c3e21f0/
Parent samples :
afa2f55e149097f9b250142bbfd94d9d56d10649c96adb079fdb0dfdac7c6660
69e2ae11e1b5cbe120bf02301191a1cf05e87fc09b09d63bd782abbf3615d05d
0b778873c94f6bc89a40294c0e85a38ab82509260cd2a2e8b73d00c5c90e8757
7ddfa6f44a60f4b894321f6977f8121cfb371c3c61ac872c58ba61fd5ee13deb
SH256 hash:
4e75bd013a161021eed54c309b94fd7f198088cf5c11aa71feba233e3de11546
MD5 hash:
cf2f4249dbd83dcfc3e6f7ad696a88fa
SHA1 hash:
eb057423adbd5daa73046d3b820f6017a04913ff
Link:
https://www.unpac.me/results/7a7b9458-03d4-4772-8a1e-a68b5c3e21f0/
SH256 hash:
dc5ef79cd2dde12973ad3cae37a3395b449975031bb421f3a80d759fa1b34c82
MD5 hash:
ffb50e3a6ce80bea9b6446d6df34a48b
SHA1 hash:
ab41616935d2fc408dc057192b20a4474598835b
Link:
https://www.unpac.me/results/7a7b9458-03d4-4772-8a1e-a68b5c3e21f0/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f5e91a8c8d4fee4b4d8236b1b545906842b85d6c60c89d6fce70c94ec14ad6e6

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: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 f5e91a8c8d4fee4b4d8236b1b545906842b85d6c60c89d6fce70c94ec14ad6e6

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/71616/
  
URLhaus
https://urlhaus.abuse.ch/url/698347/
  
Delivery method
Distributed via web download

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