MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 880bba3fa9d2e255ad00cc35d53aa361bcdf739d16064d669a4b21b9a8034f73. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 880bba3fa9d2e255ad00cc35d53aa361bcdf739d16064d669a4b21b9a8034f73
SHA3-384 hash: 5bbb685905aef4c65795f9a3bd4bee97f9f4c700fcb737e2b8812aac6a7c2d5b18ef3c8451e3f3c4ae52d871c5774983
SHA1 hash: 99bd2e4c940544705dd6c58425700595e2da1dce
MD5 hash: 56b2a6ea6417ccbe07af04a5c5e7f87f
humanhash: skylark-lima-queen-thirteen
File name:56b2a6ea6417ccbe07af04a5c5e7f87f.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:830'976 bytes
First seen:2020-08-03 07:40:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:yOFTudWYrE3oDFfjBRDm4cRpnjC+tba/:LTu/ruoF9RDBcRDE/
Threatray 10'681 similar samples on MalwareBazaar
TLSH 6505F1C956A05410CAEDBFF58EA28AB04B35AC45F5F2D34F0BC0AC9F297A793D454362
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
AgentTesla SMTP exfil server:
bh-58.webhostbox.net:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
71
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/37479/
Detection(s):
Win.Packed.Nanocore-9023920-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %temp% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/407633
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
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)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 256105 Sample: QF1myKPmkX.exe Startdate: 03/08/2020 Architecture: WINDOWS Score: 100 35 Found malware configuration 2->35 37 Yara detected AgentTesla 2->37 39 Machine Learning detection for sample 2->39 6 nwama.exe 3 2->6         started        9 QF1myKPmkX.exe 3 2->9         started        12 nwama.exe 2 2->12         started        process3 file4 41 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->41 43 Machine Learning detection for dropped file 6->43 45 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->45 14 nwama.exe 4 6->14         started        18 nwama.exe 6->18         started        29 C:\Users\user\AppData\...\QF1myKPmkX.exe.log, ASCII 9->29 dropped 47 Injects a PE file into a foreign processes 9->47 20 QF1myKPmkX.exe 2 7 9->20         started        23 nwama.exe 4 12->23         started        signatures5 process6 dnsIp7 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->49 51 Tries to steal Mail credentials (via file access) 14->51 53 Tries to harvest and steal ftp login credentials 14->53 55 Tries to harvest and steal browser information (history, passwords, etc) 14->55 31 bh-58.webhostbox.net 199.79.63.24, 49736, 49739, 49748 PUBLIC-DOMAIN-REGISTRYUS United States 20->31 33 192.168.2.1 unknown unknown 20->33 25 C:\Users\user\AppData\Local\...\nwama.exe, PE32 20->25 dropped 27 C:\Users\user\...\nwama.exe:Zone.Identifier, ASCII 20->27 dropped 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->57 59 Installs a global keyboard hook 20->59 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/880bba3fa9d2e255ad00cc35d53aa361bcdf739d16064d669a4b21b9a8034f73/
Threat name:
ByteCode-MSIL.Trojan.Masslogger
Create hunting rule
Status:
Malicious
First seen:
2020-07-21 01:52:00 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=raf3up5j2lrflliazq25kovdmg6n6445cyde2zu2jmq3tkadj5zq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'671 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200803-mea5dvwghx/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Reads data files stored by FTP clients
AgentTesla Payload
AgentTesla
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/880bba3fa9d2e255ad00cc35d53aa361bcdf739d16064d669a4b21b9a8034f73

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

AgentTesla

Executable exe 880bba3fa9d2e255ad00cc35d53aa361bcdf739d16064d669a4b21b9a8034f73

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/37479/
  
URLhaus
https://urlhaus.abuse.ch/url/423371/
  
Delivery method
Distributed via web download

Comments