MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ddc8771c8289570c7409f94a657f06b68d6df2b80293f83f0d635b83b2f14dda. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ddc8771c8289570c7409f94a657f06b68d6df2b80293f83f0d635b83b2f14dda
SHA3-384 hash: 38d229c7d3df72946235fafdef6920aa22ae3d26b010b9882ebce3aaaacf2d84339be5d879dca8844f81f5899630f795
SHA1 hash: 93162e9c2635f795345c361bfbbbacfab3fd48cf
MD5 hash: e066010a900a3c6d8643f2c9a11c0d6e
humanhash: cup-indigo-yankee-illinois
File name:Document.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:979'968 bytes
First seen:2020-10-06 06:03:30 UTC
Last seen:2020-10-06 07:22:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:dTgMZiHvfFpuIE6Us0qnvA6sxo8GUP6U7kNCUwrd50ZklC9V72lWnx8U8Wy3n4eL:58HvzfE6M6ioZGtkN7gOeU9B2lcx8U
Threatray 10'294 similar samples on MalwareBazaar
TLSH 33259DAD3A507ADFC957CD3ACA585C64EB2065A7930BD203A01315ECAE1DA97DF102F3
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail.365serverhost.com
Sending IP: 103.24.203.190
From: JITENDRA MISRA <info@cafsystems.in>
Subject: NEW PURCHASE ORDER !!
Attachment: Document.pdf (contains "Document.exe")

AgentTesla SMTP exfil server:
us2.smtp.mailhostbox.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
90
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/68433/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
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
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Moving of the original file
Stealing user critical data
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/482357
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
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 dnsIp2 2 Behavior Graph ID: 293618 Sample: Document.exe Startdate: 06/10/2020 Architecture: WINDOWS Score: 100 47 us2.smtp.mailhostbox.com 2->47 63 Found malware configuration 2->63 65 Antivirus detection for dropped file 2->65 67 Antivirus / Scanner detection for submitted sample 2->67 69 10 other signatures 2->69 8 YYtJku.exe 5 2->8         started        11 Document.exe 6 2->11         started        14 YYtJku.exe 4 2->14         started        signatures3 process4 file5 71 Antivirus detection for dropped file 8->71 73 Multi AV Scanner detection for dropped file 8->73 75 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->75 79 2 other signatures 8->79 16 YYtJku.exe 8->16         started        19 schtasks.exe 8->19         started        41 C:\Users\user\AppData\Roaming\bCxgOmuvW.exe, PE32 11->41 dropped 43 C:\Users\user\AppData\Local\...\tmpBECC.tmp, XML 11->43 dropped 45 C:\Users\user\AppData\...\Document.exe.log, ASCII 11->45 dropped 77 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 11->77 21 Document.exe 2 5 11->21         started        25 schtasks.exe 1 11->25         started        27 schtasks.exe 14->27         started        29 YYtJku.exe 14->29         started        signatures6 process7 dnsIp8 51 Tries to harvest and steal ftp login credentials 16->51 53 Tries to harvest and steal browser information (history, passwords, etc) 16->53 31 conhost.exe 19->31         started        49 us2.smtp.mailhostbox.com 208.91.198.143, 49747, 587 PUBLIC-DOMAIN-REGISTRYUS United States 21->49 37 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 21->37 dropped 39 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 21->39 dropped 55 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->55 57 Moves itself to temp directory 21->57 59 Tries to steal Mail credentials (via file access) 21->59 61 Hides that the sample has been downloaded from the Internet (zone.identifier) 21->61 33 conhost.exe 25->33         started        35 conhost.exe 27->35         started        file9 signatures10 process11
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ddc8771c8289570c7409f94a657f06b68d6df2b80293f83f0d635b83b2f14dda/
Threat name:
ByteCode-MSIL.Infostealer.Stelega
Create hunting rule
Status:
Malicious
First seen:
2020-10-06 01:49:59 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=3xehohecrflqy5aj7ffgk7ygw2gw34vyakj7qpynmnnyhmxrjxna._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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35912ff3b78d0699082450202cc16cec5c11447c39ec0e4db7738c188662f0c5
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AgentTesla
+ 10'284 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/201006-338em61ege/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
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 Payload
AgentTesla
Unpacked files
SH256 hash:
ddc8771c8289570c7409f94a657f06b68d6df2b80293f83f0d635b83b2f14dda
MD5 hash:
e066010a900a3c6d8643f2c9a11c0d6e
SHA1 hash:
93162e9c2635f795345c361bfbbbacfab3fd48cf
Link:
https://www.unpac.me/results/e617d45e-a64d-4b04-a9a0-1e200e761780/
SH256 hash:
607f04646c9f16f7c23fa69d4b8f660fc7c44d40e4f73a0c70a2b315debdaa8b
MD5 hash:
a90baadadf904455325f7bc787185c7b
SHA1 hash:
7d833bb819d638008c98be469b05db2feaf201cd
Link:
https://www.unpac.me/results/e617d45e-a64d-4b04-a9a0-1e200e761780/
SH256 hash:
82e4dc702a9b4cd2c888e8f4b7184113ba1ff81a7a2454c1774ab7116c101759
MD5 hash:
0535f8e1dd1f937bcde1571d9e77bac7
SHA1 hash:
e9a4ea7c8317cc85ab0020d9fc2a048dd1f13e77
Detections:
win_agent_tesla_w1
Create hunting rule
Link:
https://www.unpac.me/results/e617d45e-a64d-4b04-a9a0-1e200e761780/
Parent samples :
5bacbd868eaf2c767eaa3fd3b01b21495709944700228d0d5925eeb6824e2c01
ddc8771c8289570c7409f94a657f06b68d6df2b80293f83f0d635b83b2f14dda
46cbce7f98c8f8b3755ec0130f4372c9d604badc46c3d2acd406c1845ed744a1
a5cab0a179d83d27c7cddb804f83325d5c47825b09150dd80c1ec55033d25b74
SH256 hash:
6aecf826937cb432e7bf0857ed76fcbaf7b91dd32767e67436737059425b5b48
MD5 hash:
9e9f44ee88ac813c13200e0ed97f3c1f
SHA1 hash:
fa69b5c9239026286272b9fd209cb45a4b149dd0
Link:
https://www.unpac.me/results/e617d45e-a64d-4b04-a9a0-1e200e761780/
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/ddc8771c8289570c7409f94a657f06b68d6df2b80293f83f0d635b83b2f14dda

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_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla
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

rar b33eadf0737755ae0af489d4a465cf4387fd50ddcb7cb6ccafe41748051b44e1

AgentTesla

Executable exe ddc8771c8289570c7409f94a657f06b68d6df2b80293f83f0d635b83b2f14dda

(this sample)

  
Dropped by
MD5 ebe5819032e7f4373995f05c906210c7
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 b33eadf0737755ae0af489d4a465cf4387fd50ddcb7cb6ccafe41748051b44e1
Cape
Cape
https://www.capesandbox.com/analysis/68433/

Comments