MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f43734203085807cedfed30238b76d87142676522a4ba35270c3da7a26d2d6f. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3f43734203085807cedfed30238b76d87142676522a4ba35270c3da7a26d2d6f
SHA3-384 hash: 813dad1c62ad77573d450347bd1ed2a1123b878b35564f752ddebb54492c9c542c1aa94bb89dfcb45514cfd1db197f63
SHA1 hash: fce9af639fdc93a30f51cc496c167152831eda88
MD5 hash: e882970d19cbfd8f22988a88691c6f7a
humanhash: bluebird-skylark-east-eighteen
File name:Scan3021352.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:614'400 bytes
First seen:2020-10-11 07:59:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:Eu6Gi27gERSxOGDnB4XwGGGB3Qzsw74rk46x0vPqTG7xfh2frNX0KBFrpbU:W5nBuB3Ksw74g4Bv3b250aU
Threatray 440 similar samples on MalwareBazaar
TLSH B0D4122633986B36C6BE9BB98224614093F1F31BC727EB1C2CE504EC46B7744C665B67
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: smtp.livemail.co.uk
Sending IP: 213.171.216.60
From: <studio@marcregas.com>
Subject: Offer No. 3021352 / Inquiry No.120...
Attachment: Scan3021352.zip (contains "Scan3021352.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
145
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/69818/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/487662
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
Moves itself to temp directory
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: Scheduled temp file as task from temp location
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 access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 296272 Sample: Scan3021352.exe Startdate: 11/10/2020 Architecture: WINDOWS Score: 100 60 Found malware configuration 2->60 62 Multi AV Scanner detection for dropped file 2->62 64 Sigma detected: Scheduled temp file as task from temp location 2->64 66 8 other signatures 2->66 7 Scan3021352.exe 7 2->7         started        11 YYtJku.exe 5 2->11         started        13 YYtJku.exe 2->13         started        process3 file4 38 C:\Users\user\AppData\Roaming\PIaXFXOG.exe, PE32 7->38 dropped 40 C:\Users\...\PIaXFXOG.exe:Zone.Identifier, ASCII 7->40 dropped 42 C:\Users\user\AppData\Local\...\tmpC08E.tmp, XML 7->42 dropped 44 C:\Users\user\AppData\...\Scan3021352.exe.log, ASCII 7->44 dropped 68 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->68 70 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->70 72 Injects a PE file into a foreign processes 7->72 15 Scan3021352.exe 17 5 7->15         started        20 schtasks.exe 1 7->20         started        22 Scan3021352.exe 7->22         started        24 Scan3021352.exe 7->24         started        74 Multi AV Scanner detection for dropped file 11->74 76 Machine Learning detection for dropped file 11->76 26 schtasks.exe 1 11->26         started        28 YYtJku.exe 2 11->28         started        signatures5 process6 dnsIp7 46 smtp.yandex.ru 77.88.21.158, 49740, 587 YANDEXRU Russian Federation 15->46 48 elb097307-934924932.us-east-1.elb.amazonaws.com 50.19.252.36, 443, 49739 AMAZON-AESUS United States 15->48 50 4 other IPs or domains 15->50 34 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 15->34 dropped 36 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 15->36 dropped 52 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->52 54 Moves itself to temp directory 15->54 56 Tries to steal Mail credentials (via file access) 15->56 58 3 other signatures 15->58 30 conhost.exe 20->30         started        32 conhost.exe 26->32         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3f43734203085807cedfed30238b76d87142676522a4ba35270c3da7a26d2d6f/
Threat name:
ByteCode-MSIL.Trojan.Ymacco
Create hunting rule
Status:
Malicious
First seen:
2020-10-10 14:03:01 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=h5bxgqqdbbmaptw75uychc3w3byuez3fekslunjhbq62pitnfvxq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 430 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
persistence spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/201011-3qvj9l2ze6/
Behaviour
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Looks up external IP address via web service
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
AgentTesla
Unpacked files
SH256 hash:
3f43734203085807cedfed30238b76d87142676522a4ba35270c3da7a26d2d6f
MD5 hash:
e882970d19cbfd8f22988a88691c6f7a
SHA1 hash:
fce9af639fdc93a30f51cc496c167152831eda88
Link:
https://www.unpac.me/results/0f373eca-d241-4589-a5cd-b87134a2c380/
SH256 hash:
1bc5084fb406c684480b35e86b19a48f4b0bd54346e08faaca08ec83b33e8cf8
MD5 hash:
412bee7e003e3d9c87015a4c12eaefb7
SHA1 hash:
1e2cebeaf270ed7c8c80312129f6ab3efd3924de
Link:
https://www.unpac.me/results/0f373eca-d241-4589-a5cd-b87134a2c380/
SH256 hash:
13b24d3a09d099dabe41cd6cd71607a77e14640b1e9b4ed2d60f6c012f191c43
MD5 hash:
109cedae3c384a1913107f1efad2b7c8
SHA1 hash:
1f7f35b0ed85fa12bb839cbce698e59a30813420
Link:
https://www.unpac.me/results/0f373eca-d241-4589-a5cd-b87134a2c380/
SH256 hash:
c97291ef968d097299c21632d333eca9c36fd05675bceff11d0e74e2e72ff3fc
MD5 hash:
8a30b4ed9a92c8d0aab8951edfda5394
SHA1 hash:
31ffb52b1f3d6c0d88565ebe2a8612791ba9a5bc
Link:
https://www.unpac.me/results/0f373eca-d241-4589-a5cd-b87134a2c380/
SH256 hash:
b2a8cc24eb8f48e7dcfa1b453f12388452dc45b29ee4f8c421b355fae47a6f56
MD5 hash:
0a6be0dbd9eba88b011da4e458ac4724
SHA1 hash:
ee155c6c3b95d95887d07019cc6563b87dc8ffa0
Link:
https://www.unpac.me/results/0f373eca-d241-4589-a5cd-b87134a2c380/
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/3f43734203085807cedfed30238b76d87142676522a4ba35270c3da7a26d2d6f

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.

Malspam

AgentTesla

zip ba5e25996b6e8a6c894efc37abb8668ce672cece03ad4defd97cc44a37e90803

AgentTesla

Executable exe 3f43734203085807cedfed30238b76d87142676522a4ba35270c3da7a26d2d6f

(this sample)

  
Dropped by
MD5 4b0c13c09f58250e18f5c154cf0dccaf
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 ba5e25996b6e8a6c894efc37abb8668ce672cece03ad4defd97cc44a37e90803
Cape
Cape
https://www.capesandbox.com/analysis/69818/

Comments