MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 081dc7af98fe601e09d81a4698f0df119ac612be1984f1d365b4cd9c21f550a1. 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: 081dc7af98fe601e09d81a4698f0df119ac612be1984f1d365b4cd9c21f550a1
SHA3-384 hash: 0a11c49ef484789ee3da29641b4d3e0afa48acd3e9e163c9da9efd589b57937221a30e2ff9f8babd6b4f06b9bddf1908
SHA1 hash: f448f6ae0f2d239dcdcbdf091b5bf33badea539d
MD5 hash: b93b3060e307336a9ebfc45611ced91d
humanhash: ink-comet-freddie-orange
File name:purchase order.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:287'744 bytes
First seen:2020-09-23 06:51:21 UTC
Last seen:2020-09-23 13:31:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:CajsMKEEc+Qu7fKvQ/vEKsNOk+XkkW7PsNejYr0NrvbUp:Cp3Eb9K5sElXkkW7+r
Threatray 10'630 similar samples on MalwareBazaar
TLSH C1541B5DABC8BD02F1BE1D3645D2522007B1E5834D12C31F7FC85EED6E627CA298B296
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
100
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/64741/
Detection(s):
Win.Malware.AgentTesla-7660762-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Launching a process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Changing the hosts file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/473043
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Executable has a suspicious name (potential lure to open the executable)
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
Modifies the hosts file
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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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: 288965 Sample: purchase order.exe Startdate: 23/09/2020 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Found malware configuration 2->38 40 Antivirus / Scanner detection for submitted sample 2->40 42 7 other signatures 2->42 7 gKWBf.exe 2 2->7         started        12 purchase order.exe 2 5 2->12         started        14 gKWBf.exe 2 2->14         started        process3 dnsIp4 30 mail.yitaipackaging.com 7->30 24 C:\Windows\System32\drivers\etc\hosts, ASCII 7->24 dropped 44 Antivirus detection for dropped file 7->44 46 Multi AV Scanner detection for dropped file 7->46 48 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 7->48 56 5 other signatures 7->56 16 reg.exe 1 7->16         started        32 yitaipackaging.com 35.213.167.237, 49726, 49738, 587 GOOGLEUS United States 12->32 34 mail.yitaipackaging.com 12->34 26 C:\Users\user\AppData\Roaming\...\gKWBf.exe, PE32 12->26 dropped 28 C:\Users\user\...\gKWBf.exe:Zone.Identifier, ASCII 12->28 dropped 50 Tries to steal Mail credentials (via file access) 12->50 52 Modifies the hosts file 12->52 54 Hides that the sample has been downloaded from the Internet (zone.identifier) 12->54 18 reg.exe 1 12->18         started        file5 signatures6 process7 process8 20 conhost.exe 16->20         started        22 conhost.exe 18->22         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/081dc7af98fe601e09d81a4698f0df119ac612be1984f1d365b4cd9c21f550a1/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2020-09-23 00:11:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
27 of 29 (93.10%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=bao4pl4y7zqb4coydjdjr4g7cgnmmev6dgcpdu3fwtgzyipvkcqq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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1e41a4bc1146c02cf7e2e5f2a040ad3835f4852b675bfef98eeaed0c16d8bee3
AgentTesla
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683363107924a8ad11a40a756236eb3462252e6325aed4f550fb29a364619be1
AgentTesla
69fd7fce357ff849a34d669c808cd75adbd9bdbe8999bc035d353a7f235c6169
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aa556dde1f62e5e897bf5db6980f8202febe626f2e9840190f1f2695eec3c065
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ad7db1393e62d89dcb0039aa5ba64a897e88d3f6b76d146ccf419e952e57c317
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c8564d7442516aff130813091fdb261c4e77bbc019a4f8adce1cbad02f6b3b5d
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f458911cad980b38b8c73ec5b8755b9b5d0d1ff6906ed78da4d5f6ec79b5acf8
AgentTesla
+ 10'620 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer family:agenttesla
Link:
https://tria.ge/reports/200923-bagn9cdqnn/
Behaviour
AgentTesla Payload
Agenttesla family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/081dc7af98fe601e09d81a4698f0df119ac612be1984f1d365b4cd9c21f550a1

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

rar 8cf8c4334bb087f68bbf63bdf864a5d4ec370d3d5e3c076fa747412036dc8bf7

AgentTesla

Executable exe 081dc7af98fe601e09d81a4698f0df119ac612be1984f1d365b4cd9c21f550a1

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 8cf8c4334bb087f68bbf63bdf864a5d4ec370d3d5e3c076fa747412036dc8bf7
Cape
Cape
https://www.capesandbox.com/analysis/64741/
  
Dropped by
SHA256 b8fbc007220966f77b4b8af76390d5880a791157e484f7ab7760b7e0ed0163b0

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