MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b48e3904cbc6baf14e9236f1bab2aec12e3dd35587d842757159e1a4903ea7ca. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b48e3904cbc6baf14e9236f1bab2aec12e3dd35587d842757159e1a4903ea7ca
SHA3-384 hash: d25aeff49590e9c57b23d2b860f1a49093dbe95a60e055152fd6a77a604389b8d2025b4b4fb5280122373898cd8befa3
SHA1 hash: ce4fd0c07f7a3a0b009fd98cf02f3e9cb23870d2
MD5 hash: ad45e32bc143d1046a829d37ca3efe1e
humanhash: failed-london-yellow-pennsylvania
File name:documents.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'161'728 bytes
First seen:2022-03-27 10:09:42 UTC
Last seen:2024-07-24 20:34:17 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 24576:Lw5q9txIUEq6DciPF1FgJU/nluSmqiwTHEXAp2:c5q9nhCci7F8+mQbDE
Threatray 16'107 similar samples on MalwareBazaar
TLSH T19935129D3250B5DEC9ABCE3289640C50A670797BA35BC11FA40B528D9E1E7C7CF206B3
Reporter cocaman
Tags:AgentTesla exe Shipping

Intelligence

File Origin
# of uploads :
4
# of downloads :
243
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/258154/
Detection(s):
SecuriteInfo.com.Variant.MSILHeracles.36723.13247.5087.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/624038009253b276b7825a8c/reports/5857fd32-56bd-4a65-932d-61b8d32fac47/overview
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/9063f5ac-84a0-4098-a9bb-f4c600558043
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/965266
Signature
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Modifies the hosts file
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: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Add Scheduled 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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 597747 Sample: documents.exe Startdate: 27/03/2022 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 11 other signatures 2->44 7 documents.exe 7 2->7         started        process3 file4 24 C:\Users\user\AppData\...\FaxUOfetdI.exe, PE32 7->24 dropped 26 C:\Users\...\FaxUOfetdI.exe:Zone.Identifier, ASCII 7->26 dropped 28 C:\Users\user\AppData\Local\...\tmp99BB.tmp, XML 7->28 dropped 30 C:\Users\user\AppData\...\documents.exe.log, ASCII 7->30 dropped 46 Uses schtasks.exe or at.exe to add and modify task schedules 7->46 48 Writes to foreign memory regions 7->48 50 Allocates memory in foreign processes 7->50 52 2 other signatures 7->52 11 RegSvcs.exe 2 7->11         started        16 powershell.exe 23 7->16         started        18 schtasks.exe 1 7->18         started        signatures5 process6 dnsIp7 34 atifnazar.com 212.8.242.106, 49773, 587 WORLDSTREAMNL Netherlands 11->34 36 mail.atifnazar.com 11->36 32 C:\Windows\System32\drivers\etc\hosts, ASCII 11->32 dropped 54 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->54 56 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->56 58 Tries to steal Mail credentials (via file / registry access) 11->58 60 4 other signatures 11->60 20 conhost.exe 16->20         started        22 conhost.exe 18->22         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b48e3904cbc6baf14e9236f1bab2aec12e3dd35587d842757159e1a4903ea7ca/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-03-27 10:10:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
26
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wshdsbgly25pctusg3y3vmvoyexd3u2vq7mee5lrlhq2jeb6u7fa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
284fde44f4c88b3f8794bc3f441b89d50920468974a95744ee693e8676bd4280
AgentTesla
2b6dc29f30e2eff3e66e00e564d00e271de592d587fce610f758ca11a8b09227
AgentTesla
76bfbb524e921f7639ecbb2c7d40e072d5b45aa4b8521a45d82d85f96743afeb
AgentTesla
7cd1bb647fff3c340e2eae0532318bde99947b6bc91e3fabe286bd3fb0a1658e
AgentTesla
8e084a9927786a2339ed41e3c1b416d763e72fa052e62760ead5c2d15e1db278
AgentTesla
+ 16'097 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer suricata trojan
Link:
https://tria.ge/reports/220327-l7cmfscfcn/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks computer location settings
Drops file in Drivers directory
AgentTesla
suricata: ET MALWARE AgentTesla Exfil Via SMTP
Unpacked files
SH256 hash:
c8ac88096843f6eac3067fc92a6d8e09be8fb6f6d35baf2ade8e495333a23317
MD5 hash:
6a4946c2c6ffa167bf8139b890c3a999
SHA1 hash:
d930954c14fae3a3f0c6e20d3fda401365803253
Link:
https://www.unpac.me/results/9ced9cc5-99cc-477e-9aea-81e90489346c/
SH256 hash:
dc5c057b0ee1eb079cf189762aac69f0d86338ea18795dc4fbf7ed9b5a45c2eb
MD5 hash:
4103ed94f4747b30e166cf3c25416f47
SHA1 hash:
d553a67056e94f60d621ca42dcecd6d93f9ef1ad
Link:
https://www.unpac.me/results/9ced9cc5-99cc-477e-9aea-81e90489346c/
SH256 hash:
51620455d2b5fb186d15da040a436fffd52960a28661156d97f16138338585f1
MD5 hash:
0fc264f8c18eed60126b39e0afd5f957
SHA1 hash:
cf14584430f18a94b201d72ab1ab49c344a84d2f
Link:
https://www.unpac.me/results/9ced9cc5-99cc-477e-9aea-81e90489346c/
SH256 hash:
4daabe1d02e61dfa0c8bfe2c1646993888e82ed8b4483c201d97f593e184fcd3
MD5 hash:
dc238847deddd69c76b087bdbf77b140
SHA1 hash:
9296cd25464a57faed9aeea404bb0fa67d59cefc
Link:
https://www.unpac.me/results/9ced9cc5-99cc-477e-9aea-81e90489346c/
SH256 hash:
b48e3904cbc6baf14e9236f1bab2aec12e3dd35587d842757159e1a4903ea7ca
MD5 hash:
ad45e32bc143d1046a829d37ca3efe1e
SHA1 hash:
ce4fd0c07f7a3a0b009fd98cf02f3e9cb23870d2
Link:
https://www.unpac.me/results/9ced9cc5-99cc-477e-9aea-81e90489346c/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b48e3904cbc6/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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: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

zip bdb483bac00b70250e7b3b77ace905ff023674e5e451cd7061e9d92bf702c412

AgentTesla

Executable exe b48e3904cbc6baf14e9236f1bab2aec12e3dd35587d842757159e1a4903ea7ca

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 bdb483bac00b70250e7b3b77ace905ff023674e5e451cd7061e9d92bf702c412
Cape
Cape
https://www.capesandbox.com/analysis/258154/

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