MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b76efd5481457c3cc47629fbb3a406b85cbbdf0058b295f918e73c4a0b63ae52. 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: b76efd5481457c3cc47629fbb3a406b85cbbdf0058b295f918e73c4a0b63ae52
SHA3-384 hash: b3a795a45486d5f4be30dc0e9a9fcc6add5992b71eba2621fadb282803f682e45ae3ef6671dfdfdbee557944e9cf9b2d
SHA1 hash: 46a1f6ab90bb5ec5c7ac2ea7a0655f028212496f
MD5 hash: a97b78cbd7e301bbe800fb91a09f7bce
humanhash: white-sixteen-sad-butter
File name:a97b78cbd7e301bbe800fb91a09f7bce.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:483'328 bytes
First seen:2020-10-15 13:12:24 UTC
Last seen:2020-10-15 15:42:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:kuwemNlKUl0sev6H5+Q0JUwJsSyR0ahtIQl/FyeeI11IONaDwFnj0K1Wj8DBupgb:DTbHDdiSG0ahtIQybGZ9Fnj0K1v0p
Threatray 269 similar samples on MalwareBazaar
TLSH F6A49D727D92D97FCA6A0731146584C5FAB616C63F608B0D72AE8B4CCE11B2FA713247
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
AgentTesla SMTP exfil server:
smtp.yandex.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/71423/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.13206.24414.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 file in the %AppData% subdirectories
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:
66 / 100
Link:
https://www.joesandbox.com/analysis/492519
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
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Add file from suspicious location to autostart registry
Tries to detect virtualization through RDTSC time measurements
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 298782 Sample: WPOvOpApjp.exe Startdate: 15/10/2020 Architecture: WINDOWS Score: 66 32 Multi AV Scanner detection for dropped file 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 Yara detected AgentTesla 2->36 38 4 other signatures 2->38 7 WPOvOpApjp.exe 9 2->7         started        11 pcalua.exe 1 2->11         started        13 pcalua.exe 1 2->13         started        process3 file4 24 C:\Users\user\AppData\Roaming\...\hy3n.exe, PE32 7->24 dropped 26 C:\Users\user\AppData\...\WPOvOpApjp.exe.log, ASCII 7->26 dropped 28 C:\Users\user\AppData\Local\Temp\...\Fdf.dll, PE32 7->28 dropped 30 C:\Users\user\AppData\...\InstallUtil.exe, PE32 7->30 dropped 42 Tries to detect virtualization through RDTSC time measurements 7->42 15 cmd.exe 1 7->15         started        17 hy3n.exe 2 7->17         started        signatures5 process6 process7 19 reg.exe 1 1 15->19         started        22 conhost.exe 15->22         started        signatures8 40 Creates an autostart registry key pointing to binary in C:\Windows 19->40
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b76efd5481457c3cc47629fbb3a406b85cbbdf0058b295f918e73c4a0b63ae52/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2020-10-15 04:33:29 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=w5xp2vebiv6dzrdwfh53hjagxbolxxyalczjl6iy446euc3dvzja._file
Verdict:
unknown
Similar samples:
046fd8e4a205a247d179395dd6ee877378bb4afa552ae98cfa5afd5c323b680e
AgentTesla
050daf7c3451797914a6a6a1dc62caf6e739a1177030b91a918b5686df7ec77a
AgentTesla
2a98548d44123e8fd77535fd77d107c0fb675cd269bdd82a95e8c5127c62fcc8
AgentTesla
333a258f45e7a8baaab72b1539859a00bca7309a8d641490329184977090b540
AgentTesla
53a55d9370ca3596d51b4b22a9b1808ed8f60eedf8d11bc8b81b33d068028fad
AgentTesla
5650c4cb25367d0e96c18c28c72460ea457f621840be07fc09dc2b19d05c0b88
AgentTesla
5e5dc622108b69d77e09abf99287d670c8f0249e59971ee49ef7506adb572ecf
AgentTesla
87d8ef6a4c6bf661d7957a62b9e8e9ea6627f80227f9ea88502bf601b94a960e
AgentTesla
9ac3db8027c9eefbba6e112514370a2c4b35d04380540b04deaa91dc92cc3e9b
AgentTesla
dcdf9338be399d3f441d940e06370af20cff1719876d62774f0eff3254265d1d
AgentTesla
+ 259 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence
Link:
https://tria.ge/reports/201015-basqv27d8e/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Drops file in Drivers directory
Executes dropped EXE
Unpacked files
SH256 hash:
b76efd5481457c3cc47629fbb3a406b85cbbdf0058b295f918e73c4a0b63ae52
MD5 hash:
a97b78cbd7e301bbe800fb91a09f7bce
SHA1 hash:
46a1f6ab90bb5ec5c7ac2ea7a0655f028212496f
Link:
https://www.unpac.me/results/e0c9cf1e-5eaa-4995-8eac-bafb52fab523/
SH256 hash:
19d9922060be89a70b76e5c0056e751f1baa5d41819235c92cf4f5d7668e1267
MD5 hash:
811864a0b06c529af894a7fec6ddbf47
SHA1 hash:
d35b82933eb06a6ec60e8cbbdb65eb6cdcaeb6d2
Link:
https://www.unpac.me/results/e0c9cf1e-5eaa-4995-8eac-bafb52fab523/
Parent samples :
afa2f55e149097f9b250142bbfd94d9d56d10649c96adb079fdb0dfdac7c6660
69e2ae11e1b5cbe120bf02301191a1cf05e87fc09b09d63bd782abbf3615d05d
0b778873c94f6bc89a40294c0e85a38ab82509260cd2a2e8b73d00c5c90e8757
7ddfa6f44a60f4b894321f6977f8121cfb371c3c61ac872c58ba61fd5ee13deb
SH256 hash:
cc68e3eb8bccc4a249ec5b6f7d83cb2230442040a398aa362c30bfa520987bc5
MD5 hash:
0c74f2c28837f15bd9481236e4fff068
SHA1 hash:
d6aaa270e7cde6512b8861d725556433b7da78b9
Link:
https://www.unpac.me/results/e0c9cf1e-5eaa-4995-8eac-bafb52fab523/
SH256 hash:
cbc7068f78be811383c8729ab25ead5a326a1259852a2bee2bd3ba50e4b54a13
MD5 hash:
20ed81866931fec354ac5e77c69aaeea
SHA1 hash:
f27b29c27a9100d0aa67198e0ad705a168a49886
Link:
https://www.unpac.me/results/e0c9cf1e-5eaa-4995-8eac-bafb52fab523/
SH256 hash:
ee968b1aac55eeecdbc113c774c6d3bef56b79dd83cb79c07fe5721438b9131e
MD5 hash:
8819a00b1e0338268405b28c1a552360
SHA1 hash:
747f089da545b25cd4950722fa1c1251e2382047
Link:
https://www.unpac.me/results/e0c9cf1e-5eaa-4995-8eac-bafb52fab523/
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/b76efd5481457c3cc47629fbb3a406b85cbbdf0058b295f918e73c4a0b63ae52

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 b76efd5481457c3cc47629fbb3a406b85cbbdf0058b295f918e73c4a0b63ae52

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/71423/
  
URLhaus
https://urlhaus.abuse.ch/url/697803/
  
Delivery method
Distributed via web download

Comments