MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c497868e5a9937c78390d29eddba97c400c13f49b1286e70393012fb7e16878. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8c497868e5a9937c78390d29eddba97c400c13f49b1286e70393012fb7e16878
SHA3-384 hash: 56c61053eaa497dedf86855b974444f5899761e1676e82219d811ea42ec7e3c1db393b27bb5f6944cf80de80083d9cec
SHA1 hash: 6944cad9cebc876ff6e8d200f9023192dee87126
MD5 hash: 72f865acc2da63a059e7f86795f23acb
humanhash: lamp-massachusetts-fifteen-wisconsin
File name:Psan_order Pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:462'848 bytes
First seen:2020-08-05 09:18:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:5OEHtKRaojstDO26qR9Vn4iEIX32toa4C9H8l2wZf:5OEH4RaoC9Rn4to8902
Threatray 10'615 similar samples on MalwareBazaar
TLSH 9BA4F01C36A45A4EF5BA0E3F9C3001839E2AF41FDE66D75B6A751279043E68DBC20F61
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: xa0.09.msllownpl.cf
Sending IP: 68.183.91.178
From: PSAN Ltd<km@avbteknosolves.com>
Subject: Attachment was Filtered - Inquiry of following products
Attachment: Psan_order Pdf.gz (contains "Psan_order Pdf.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
65
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/39319/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Launching a process
Creating a process with a hidden window
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/410775
Signature
Allocates memory in foreign processes
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
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
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 access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 257698 Sample: Psan_order Pdf.exe Startdate: 05/08/2020 Architecture: WINDOWS Score: 100 33 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->33 35 Found malware configuration 2->35 37 Sigma detected: Scheduled temp file as task from temp location 2->37 39 8 other signatures 2->39 7 Psan_order Pdf.exe 5 2->7         started        process3 file4 21 C:\Users\user\AppData\...\yPbxCnvYiq.exe, PE32 7->21 dropped 23 C:\Users\...\yPbxCnvYiq.exe:Zone.Identifier, ASCII 7->23 dropped 25 C:\Users\user\AppData\Local\...\tmp2822.tmp, XML 7->25 dropped 27 C:\Users\user\...\Psan_order Pdf.exe.log, ASCII 7->27 dropped 41 Writes to foreign memory regions 7->41 43 Allocates memory in foreign processes 7->43 45 Injects a PE file into a foreign processes 7->45 11 RegSvcs.exe 2 7->11         started        15 RegSvcs.exe 7->15         started        17 schtasks.exe 1 7->17         started        signatures5 process6 dnsIp7 29 smtp.mosiactex.com 11->29 31 us2.smtp.mailhostbox.com 208.91.198.143, 49727, 587 PUBLIC-DOMAIN-REGISTRYUS United States 11->31 47 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->47 49 Tries to steal Mail credentials (via file access) 11->49 51 Tries to harvest and steal ftp login credentials 11->51 53 Tries to harvest and steal browser information (history, passwords, etc) 11->53 55 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->55 57 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 15->57 19 conhost.exe 17->19         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8c497868e5a9937c78390d29eddba97c400c13f49b1286e70393012fb7e16878/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2020-08-05 07:59:32 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rrexq2hfvgjxy6bzbuu63w5jpraaye7utmjinzydsmas7n7bnb4a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
14a74c801c53b6e9b4a5d6ea8534af37a40a510374e0d330790557b2bd9444c0
AgentTesla
1ea691cde0cd283254ce774323d909715af26b3baa41acae58455fdd79e12dc4
AgentTesla
3ec3af4549c4eb614c0adbe80eea39646e7b0de97e6ff1fa52c43e0fb2249560
AgentTesla
653f9230a0dfc61996a0213363c938cc629fe374f877febd3df485369d1f476a
AgentTesla
6b289f4c862c4205a7debaa7217dfad7e66b56dcd3274e9b4ee530aa0e380037
AgentTesla
7be323fedb7e61592a97676ff71f8db5f55c98d6dfdfd1845b11ad087e55bc57
AgentTesla
94a423fe460dd70d28cfa65a5c192377c289343a87f3b46c2378b2b28edf3336
AgentTesla
a221aea48e4c8450ffde297704231b8023ee99a1e98892c3958dc3072bb33f16
AgentTesla
d169af713aac6178816694e1006b2e9f6411687fb13ed0402792222d380624f1
AgentTesla
e1cb4a0d3813ad837a8a170bdc6674d860d053e4be87562f1808657f57066dd1
AgentTesla
+ 10'605 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200805-n261qlrkvn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Creates scheduled task(s)
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email 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/8c497868e5a9937c78390d29eddba97c400c13f49b1286e70393012fb7e16878

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.

Malspam

AgentTesla

gz 2a5ac63a2c8945064417cb61b274902e3c9733718d6421231f59107083f4996f

AgentTesla

Executable exe 8c497868e5a9937c78390d29eddba97c400c13f49b1286e70393012fb7e16878

(this sample)

  
Dropped by
MD5 f798d22c8d5650ad4691382027f56a4a
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/39319/
  
Dropped by
SHA256 2a5ac63a2c8945064417cb61b274902e3c9733718d6421231f59107083f4996f

Comments