MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5bacbd868eaf2c767eaa3fd3b01b21495709944700228d0d5925eeb6824e2c01. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5bacbd868eaf2c767eaa3fd3b01b21495709944700228d0d5925eeb6824e2c01
SHA3-384 hash: d4344fa99e3dd2e9d07c4ce40e9a74664145bc0f57134c3fcc492459900552ca2d0cab734911a1ff377d12d06228c777
SHA1 hash: e05ee849fdb7b3ab37706fdd37199eb53165ee91
MD5 hash: baf6b79583dd71cfee65be6fb1c95bdc
humanhash: quiet-xray-dakota-sierra
File name:document.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:810'496 bytes
First seen:2020-10-05 12:12:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:Z49wG41mzPWc/fLKTRc3m8Oo1VjbjlBfj59UVDEKLjk893YIHRuVePu:ZBG41UeOf2G3UejVJ8VDBLo848
Threatray 23 similar samples on MalwareBazaar
TLSH 5905011037B84F1AE4FA97F65564D04483763D593573E39D8EE2B1CE2876B004B2AA2F
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:

Intelligence

File Origin
# of uploads :
1
# of downloads :
100
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/68205/
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/481452
Signature
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
Injects a PE file into a foreign processes
Moves itself to temp directory
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: 293190 Sample: document.exe Startdate: 05/10/2020 Architecture: WINDOWS Score: 100 64 Found malware configuration 2->64 66 Sigma detected: Scheduled temp file as task from temp location 2->66 68 Yara detected AgentTesla 2->68 70 4 other signatures 2->70 7 document.exe 6 2->7         started        11 YYtJku.exe 5 2->11         started        13 YYtJku.exe 4 2->13         started        process3 file4 44 C:\Users\user\AppData\Local\...\tmpC36B.tmp, XML 7->44 dropped 46 C:\Users\user\AppData\...\tNVJyJFVXdNQ.exe, PE32 7->46 dropped 72 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->72 74 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->74 15 document.exe 2 5 7->15         started        20 schtasks.exe 1 7->20         started        76 Injects a PE file into a foreign processes 11->76 78 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->78 22 YYtJku.exe 11->22         started        24 schtasks.exe 11->24         started        26 YYtJku.exe 13->26         started        28 schtasks.exe 13->28         started        30 YYtJku.exe 13->30         started        32 YYtJku.exe 13->32         started        signatures5 process6 dnsIp7 48 us2.smtp.mailhostbox.com 208.91.199.224, 49771, 49772, 587 PUBLIC-DOMAIN-REGISTRYUS United States 15->48 40 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 15->40 dropped 42 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 15->42 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 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->58 34 conhost.exe 20->34         started        36 conhost.exe 24->36         started        50 192.168.2.1 unknown unknown 26->50 60 Tries to harvest and steal ftp login credentials 26->60 62 Tries to harvest and steal browser information (history, passwords, etc) 26->62 38 conhost.exe 28->38         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5bacbd868eaf2c767eaa3fd3b01b21495709944700228d0d5925eeb6824e2c01/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-05 06:45:07 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lowl3buov4whm7vkh7j3agzbjflqtfchaari2dkzexxlnasofqaq._file
Verdict:
unknown
Similar samples:
135b8460366d8e5da1ee0293afd0087133280f0f9084a5562b8726d13677d12d
AgentTesla
1e5fd179246b957c72ee164cbd3a0c20dd824c5af02f85b94a59a7537859a82b
AgentTesla
20c6424e353a9e436708bba102710844e52c8ada62ad91e6de65438ee233faff
AgentTesla
880a3f89941849fc46d6921a4ef7326e4b2b074a505e916cac0eb1cd0f15c45f
AgentTesla
ba7b4dfc9852ed43efb9b79e6f9586f79b1cef29c7f9d793c3026e85bd1cacb6
AgentTesla
bf56f62cbc583924d71c51afea9546cbfd6dafafe877553a3d1ca37a25d34767
AgentTesla
ccdf4a4de46d510c72b7ccd6036af45ec3782f6a683e0534eab1a294c34ffcf3
AgentTesla
e3d0c7364e4c4098ca40e5a9f117a94b475243db12416b6e3fdfc22ef2d7c92a
AgentTesla
fa28414beb5467b5f805e2a83eb76a5face95c36040bd3edd1bd791ee8ef48d1
AgentTesla
fa4ef9305ba071baf218b39bb5fd5f1438836f6e04fcb67b003a95ef1246ccfe
AgentTesla
+ 13 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/201005-ybxzlxlsbx/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: RenamesItself
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:
5bacbd868eaf2c767eaa3fd3b01b21495709944700228d0d5925eeb6824e2c01
MD5 hash:
baf6b79583dd71cfee65be6fb1c95bdc
SHA1 hash:
e05ee849fdb7b3ab37706fdd37199eb53165ee91
Link:
https://www.unpac.me/results/d8684ec2-4da2-4463-af11-854b0e6382e8/
SH256 hash:
607f04646c9f16f7c23fa69d4b8f660fc7c44d40e4f73a0c70a2b315debdaa8b
MD5 hash:
a90baadadf904455325f7bc787185c7b
SHA1 hash:
7d833bb819d638008c98be469b05db2feaf201cd
Link:
https://www.unpac.me/results/d8684ec2-4da2-4463-af11-854b0e6382e8/
SH256 hash:
479f9b60f689119312bc9a58f3f4eea7eedc858a7674c61325a402860cab4ab4
MD5 hash:
252a924faf6f0b0989198beb1497d56b
SHA1 hash:
99f5182a0ab33529d92c7cbe9ed0dd0e8dea951e
Link:
https://www.unpac.me/results/d8684ec2-4da2-4463-af11-854b0e6382e8/
SH256 hash:
82e4dc702a9b4cd2c888e8f4b7184113ba1ff81a7a2454c1774ab7116c101759
MD5 hash:
0535f8e1dd1f937bcde1571d9e77bac7
SHA1 hash:
e9a4ea7c8317cc85ab0020d9fc2a048dd1f13e77
Detections:
win_agent_tesla_w1
Create hunting rule
Link:
https://www.unpac.me/results/d8684ec2-4da2-4463-af11-854b0e6382e8/
Parent samples :
5bacbd868eaf2c767eaa3fd3b01b21495709944700228d0d5925eeb6824e2c01
ddc8771c8289570c7409f94a657f06b68d6df2b80293f83f0d635b83b2f14dda
46cbce7f98c8f8b3755ec0130f4372c9d604badc46c3d2acd406c1845ed744a1
a5cab0a179d83d27c7cddb804f83325d5c47825b09150dd80c1ec55033d25b74
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/5bacbd868eaf2c767eaa3fd3b01b21495709944700228d0d5925eeb6824e2c01

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 e2682a832aea9518dcd09f963afff41a0101122fcb9cbbc1155428a47282f40d

AgentTesla

Executable exe 5bacbd868eaf2c767eaa3fd3b01b21495709944700228d0d5925eeb6824e2c01

(this sample)

  
Dropped by
MD5 01361a9e8a707fb00bb8abcd67a9e658
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/68205/
  
Dropped by
SHA256 e2682a832aea9518dcd09f963afff41a0101122fcb9cbbc1155428a47282f40d

Comments