MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc7ebe6c552a74ca5ad5f273e569c81b3c8aa18e69a70dbb18e8b3a0105888b1. 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: 8


Intelligence 8 IOCs YARA 6 File information Comments
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SHA256 hash: fc7ebe6c552a74ca5ad5f273e569c81b3c8aa18e69a70dbb18e8b3a0105888b1
SHA3-384 hash: 041c37200efdf8e1fd10493c7ff8ce39fd6120133ea4045ce2f36a9d2c0eeab12038c642a031131e92e09a09f51c0d8a
SHA1 hash: c15e20fc43db4132c1cf96f15992898756228692
MD5 hash: 46779f8d789154280b04e588fa7597b1
humanhash: monkey-fruit-triple-montana
File name:Purchase Order PO#208158.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:878'592 bytes
First seen:2020-10-14 14:16:46 UTC
Last seen:2020-10-14 14:56:41 UTC
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:md4EA57ogk/oEu9thtW8KwLfGiwCjXH43ye6ljiWeAMESh1l4aA50Db4UJg/yzSW:mdZy7oFe97tW8XfGixbH43gM1BI0P4x
Threatray 10'070 similar samples on MalwareBazaar
TLSH 6C15D09D365075EFC41BCD768A981C24EA207477970BD217A06326ACDA0EADBCF245F3
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
86
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/70789/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.23953.26703.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/491022
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
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Queries sensitive video device information (via WMI, Win32_VideoController, 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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 297959 Sample: Purchase Order PO#208158.exe Startdate: 14/10/2020 Architecture: WINDOWS Score: 100 64 Found malware configuration 2->64 66 Multi AV Scanner detection for dropped file 2->66 68 Sigma detected: Scheduled temp file as task from temp location 2->68 70 11 other signatures 2->70 7 zvVbs.exe 5 2->7         started        10 Purchase Order PO#208158.exe 6 2->10         started        13 zvVbs.exe 2 2->13         started        process3 file4 72 Multi AV Scanner detection for dropped file 7->72 74 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->74 76 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->76 80 2 other signatures 7->80 15 zvVbs.exe 4 7->15         started        19 schtasks.exe 1 7->19         started        21 zvVbs.exe 7->21         started        23 zvVbs.exe 7->23         started        38 C:\Users\user\AppData\Roaming\idAWOrYv.exe, PE32 10->38 dropped 40 C:\Users\user\AppData\Local\...\tmp97D0.tmp, XML 10->40 dropped 42 C:\Users\...\Purchase Order PO#208158.exe.log, ASCII 10->42 dropped 78 Injects a PE file into a foreign processes 10->78 25 Purchase Order PO#208158.exe 2 7 10->25         started        28 schtasks.exe 1 10->28         started        signatures5 process6 dnsIp7 44 mail.anartem.pt 15->44 52 Tries to harvest and steal ftp login credentials 15->52 54 Tries to harvest and steal browser information (history, passwords, etc) 15->54 56 Installs a global keyboard hook 15->56 30 conhost.exe 19->30         started        46 anartem.pt 188.93.230.198, 49734, 49748, 49757 CLARANET-ASClaraNETLTDGB Portugal 25->46 48 mail.anartem.pt 25->48 50 192.168.2.1 unknown unknown 25->50 34 C:\Users\user\AppData\Roaming\...\zvVbs.exe, PE32 25->34 dropped 36 C:\Users\user\...\zvVbs.exe:Zone.Identifier, ASCII 25->36 dropped 58 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 25->58 60 Tries to steal Mail credentials (via file access) 25->60 62 Hides that the sample has been downloaded from the Internet (zone.identifier) 25->62 32 conhost.exe 28->32         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fc7ebe6c552a74ca5ad5f273e569c81b3c8aa18e69a70dbb18e8b3a0105888b1/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2020-10-14 09:10:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7r7l43cvfj2muwwv6jz6k2oidm6ivimongtq3oyy5cz2aecyrcyq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
1122833e85cc56463f880d6951e7c1a7066b67722b0771de0e0f1088c336a23c
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8cb14b0233584540a257d1189f2fc36f44c34847778476d1be5bd6441353a7d1
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a1579595bc8439774307b941ef20cbcd1e6f3e767859debd8e5e448eda09a0f2
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a66ca1e1d94dfbe3e0fe92afd519f9a00b102438f6be1786a988fca58fa19bc6
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c299c360a59db588d26e7063cfbafb5327ebb191e3f4bfb3611cadbcfa5aff25
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d925299f981b6b3be43538c373606c8560bbac6a5929f568eaaa45acb7170215
AgentTesla
+ 10'060 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer persistence spyware evasion trojan family:agenttesla
Link:
https://tria.ge/reports/201014-7zfsfb11t2/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Maps connected drives based on registry
Checks BIOS information in registry
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
AgentTesla
Unpacked files
SH256 hash:
fc7ebe6c552a74ca5ad5f273e569c81b3c8aa18e69a70dbb18e8b3a0105888b1
MD5 hash:
46779f8d789154280b04e588fa7597b1
SHA1 hash:
c15e20fc43db4132c1cf96f15992898756228692
Link:
https://www.unpac.me/results/af4fc51a-5a08-4021-abef-e4cb9b3f9306/
SH256 hash:
3ccd895814a130384649350e5cc65c2f45f0ea9a1681577e1f4467cc7022e869
MD5 hash:
b9eb3afb5afd5af0727e23231bc116ee
SHA1 hash:
609358a5278949d9010f914bdcfa6ec42550067a
Link:
https://www.unpac.me/results/af4fc51a-5a08-4021-abef-e4cb9b3f9306/
SH256 hash:
607f04646c9f16f7c23fa69d4b8f660fc7c44d40e4f73a0c70a2b315debdaa8b
MD5 hash:
a90baadadf904455325f7bc787185c7b
SHA1 hash:
7d833bb819d638008c98be469b05db2feaf201cd
Link:
https://www.unpac.me/results/af4fc51a-5a08-4021-abef-e4cb9b3f9306/
SH256 hash:
18ddaeca056f34f3b4dbfd0c01f9f05e3d99b2520752068b8ee9ccc092d122ef
MD5 hash:
50c1708d11effda04c91b4ee1dde4225
SHA1 hash:
bf1067bfeb017c94fde6fb710c8d8edafb0c20e5
Detections:
win_agent_tesla_w1
Create hunting rule
Link:
https://www.unpac.me/results/af4fc51a-5a08-4021-abef-e4cb9b3f9306/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/fc7ebe6c552a74ca5ad5f273e569c81b3c8aa18e69a70dbb18e8b3a0105888b1

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_extracted_bin
Create hunting rule
Author:James_inthe_box
Description:AgentTesla extracted
Rule name:AgentTesla_mod_tough_bin
Create hunting rule
Author:James_inthe_box
Reference:https://app.any.run/tasks/3b5d409c-978b-4a95-a5f1-399f0216873d/
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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/70789/

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