MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 666a4176c94d59dd14ed91c81258e2bb1c6deeb2bb9f39c0e92ece21ca4d0613. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 666a4176c94d59dd14ed91c81258e2bb1c6deeb2bb9f39c0e92ece21ca4d0613
SHA3-384 hash: 7f3adf30907b1045b7ca1e12437802b9d7d36f7d71aace265b589fc1a76ee86c13f94e0efba35d7090744ab877a093ee
SHA1 hash: 62bb827d4dee02a5f13589199c6404bc7b2d69b6
MD5 hash: af80bb491caadee2aab36f673656d4d0
humanhash: eight-princess-virginia-robert
File name:sale order.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:642'048 bytes
First seen:2021-10-05 05:24:40 UTC
Last seen:2021-10-05 13:37:42 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:f6YI046Mnq0UnsO5lJkKzUvoPUu9Yd+QCpScEZTn2r9pm8L0QXgKI:R7pQ5n2r902gK
Threatray 10'715 similar samples on MalwareBazaar
TLSH T123D4C5D053CB99C4B57B2139B0222CEBB47D630DF3AECF1151A77A938CBA750561DA88
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
120
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
sale order.exe
Verdict:
Malicious activity
Analysis date:
2021-10-05 05:30:18 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b9065ae3-c4a3-450d-945c-5f30f5ee0f1f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/194832/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.30323.3047.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/615c0628b95458900cdc5f0d/reports/45f4d653-29eb-40ec-8d93-1c2ddda1d24c/overview
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/07b22a75-b01e-4175-9a46-35d0ebe41783
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/864421
Signature
.NET source code contains very large array initializations
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
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)
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: 496847 Sample: sale order.exe Startdate: 05/10/2021 Architecture: WINDOWS Score: 100 48 Found malware configuration 2->48 50 Multi AV Scanner detection for dropped file 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 8 other signatures 2->54 7 sale order.exe 6 2->7         started        11 ZAYOk.exe 5 2->11         started        13 ZAYOk.exe 2 2->13         started        process3 file4 34 C:\Users\user\AppData\...\YJFDwQDXjSBBrH.exe, PE32 7->34 dropped 36 C:\Users\user\AppData\Local\Temp\tmp623.tmp, XML 7->36 dropped 38 C:\Users\user\AppData\...\sale order.exe.log, ASCII 7->38 dropped 56 Injects a PE file into a foreign processes 7->56 15 sale order.exe 2 5 7->15         started        19 schtasks.exe 1 7->19         started        58 Multi AV Scanner detection for dropped file 11->58 60 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->60 62 Machine Learning detection for dropped file 11->62 64 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 11->64 21 schtasks.exe 1 11->21         started        23 ZAYOk.exe 11->23         started        signatures5 process6 file7 42 C:\Users\user\AppData\Roaming\...\ZAYOk.exe, PE32 15->42 dropped 44 C:\Users\user\...\ZAYOk.exe:Zone.Identifier, ASCII 15->44 dropped 46 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->46 25 WerFault.exe 23 9 15->25         started        28 WerFault.exe 15->28         started        30 conhost.exe 19->30         started        32 conhost.exe 21->32         started        signatures8 process9 file10 40 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 25->40 dropped
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/666a4176c94d59dd14ed91c81258e2bb1c6deeb2bb9f39c0e92ece21ca4d0613/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2021-10-05 03:02:28 UTC
AV detection:
11 of 45 (24.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mzvec5wjjvm52fhnshebewhcxmog33vsxopttqhjf3hcdssnayjq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
07d74ebad5281efc8b39570b0c86fe8c5ca84c2b1d2d21c5d101da2ad758f068
AgentTesla
3467998f0e537762dae5c53816d9bded62f7592c4564da9b34dab17d256451a2
AgentTesla
39d6538d17f4e0983148dde9c80565090d7eb512ad3ea31d9fecc3c9d1530208
AgentTesla
61e359792e38f76dfd2bb9378e8679403344449f0f40946042f8a285f4ea0548
AgentTesla
86324507b99eaddd23e1c94340269fc33d8a9cf64c6df71822d4b0cf59078535
AgentTesla
a0cd0f193a5752c3697002dd05815c9913a8770d7dce6914646342f1a2f56e5d
AgentTesla
c5fd8f5ba73bd61a0c0ef2990e1edc48017492b45cc056ec13e33d8c6f8e79ad
AgentTesla
cd1021cd2a05b85705422bfa7345af95d23c928807e33befb43ebe0313209f08
AgentTesla
e5c32739c115f51b0d7bf70fe1c50ca8253ee7ce97ef53d97582417e4bc093cb
AgentTesla
+ 10'705 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/211005-f4bm4ahcb8/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
AgentTesla Payload
AgentTesla
Contains code to disable Windows Defender
Unpacked files
SH256 hash:
e67ab7acbfd8e2699ae9ac274247026aad97f513c36c1beb3bedc3b682c66f32
MD5 hash:
87e78f1ce9a93f5f9894746dbd04c69b
SHA1 hash:
bbf4a263a588f26c1e551bb8a9e64fe35ad11cc7
Link:
https://www.unpac.me/results/8d1287a1-1e61-40f1-84bb-7d5096d8db79/
SH256 hash:
a3ec4a68a5d94adeaa177bf004093928d3c555d2feed5b637824ff39c7170708
MD5 hash:
499091ca4a038387ec3e4dfb152c56f7
SHA1 hash:
7280b623247732f08b2f6ca6ea756de7d4fb755f
Link:
https://www.unpac.me/results/8d1287a1-1e61-40f1-84bb-7d5096d8db79/
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
Link:
https://www.unpac.me/results/8d1287a1-1e61-40f1-84bb-7d5096d8db79/
SH256 hash:
666a4176c94d59dd14ed91c81258e2bb1c6deeb2bb9f39c0e92ece21ca4d0613
MD5 hash:
af80bb491caadee2aab36f673656d4d0
SHA1 hash:
62bb827d4dee02a5f13589199c6404bc7b2d69b6
Link:
https://www.unpac.me/results/8d1287a1-1e61-40f1-84bb-7d5096d8db79/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/666a4176c94d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/666a4176c94d59dd14ed91c81258e2bb1c6deeb2bb9f39c0e92ece21ca4d0613

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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

Executable exe 666a4176c94d59dd14ed91c81258e2bb1c6deeb2bb9f39c0e92ece21ca4d0613

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/194832/

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