MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c3ca6a64f95f07e7557eb0ed7968c7d7bf735b08478f517061542059930bbf32. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c3ca6a64f95f07e7557eb0ed7968c7d7bf735b08478f517061542059930bbf32
SHA3-384 hash: 17fbee457f361b5a1b376f34b6fc3f8bfe5fc53f624699d88ac69d5ecaa8da8287f860516771c8d84df7b99121e4ffee
SHA1 hash: 6bbbc3b5716f7e0d3ff4c73f849b06bcbab2680f
MD5 hash: 8a6317938cb242537f3695f224a53bbe
humanhash: failed-lemon-lamp-happy
File name:opooo.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:979'968 bytes
First seen:2020-07-22 07:41:41 UTC
Last seen:2020-07-23 13:47:23 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:+OKFTnqe2hqSCZITKdsUr6h/4mhNGkJ9BvsP+/ye03csP7r9r/+pppppppppppp9:0TnqNhqSpTiTr6mmhNlJz71s1q
Threatray 10'541 similar samples on MalwareBazaar
TLSH D7254A40E7B085C5CB5A5F75D931C4208132BD6A6BF5E24E2BC8FE6B3AB73954213E12
Reporter jarumlus
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
11
# of downloads :
74
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/30882/
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
Creating a file
Enabling autorun with Startup directory
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/394612
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 249714 Sample: opooo.exe Startdate: 23/07/2020 Architecture: WINDOWS Score: 100 54 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->54 56 Found malware configuration 2->56 58 Multi AV Scanner detection for dropped file 2->58 60 4 other signatures 2->60 8 opooo.exe 9 2->8         started        11 OVDeV.exe 2 2->11         started        13 OVDeV.exe 1 2->13         started        process3 file4 36 C:\Users\user\AppData\...\pQNaTxpeSd.exe, PE32 8->36 dropped 38 C:\Users\user\AppData\Local\...\tmp477B.tmp, XML 8->38 dropped 40 C:\Users\user\AppData\Local\...\opooo.exe.log, ASCII 8->40 dropped 15 RegSvcs.exe 2 4 8->15         started        20 schtasks.exe 1 8->20         started        22 conhost.exe 11->22         started        24 conhost.exe 13->24         started        process5 dnsIp6 42 cpanel-02.wlink.com.np 202.166.193.69, 49721, 587 WLINK-NEPAL-AS-APWorldLinkCommunicationsPvtLtdNP Nepal 15->42 44 mail.blc.com.np 15->44 32 C:\Users\user\AppData\Roaming\...\OVDeV.exe, PE32 15->32 dropped 34 C:\Windows\System32\drivers\etc\hosts, ASCII 15->34 dropped 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->46 48 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->48 50 Tries to steal Mail credentials (via file access) 15->50 52 5 other signatures 15->52 26 reg.exe 1 15->26         started        28 conhost.exe 20->28         started        file7 signatures8 process9 process10 30 conhost.exe 26->30         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c3ca6a64f95f07e7557eb0ed7968c7d7bf735b08478f517061542059930bbf32/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-22 05:16:08 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ypfguzhzl4d6ovl6wdwxs2gh267xgwyii6hvc4dbkqqfteylx4za._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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a0086dfee2dba4d6a0adab05e848cfbb9755f68be7adef3ff35ff9740e5a1c2e
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af8343cc25fb243e378897bcf5c22ff94287610ae86538862feb362e2382b456
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b8e2713744ae4bf75f6f051a88fd7cd88aa5a9d0e5707932b44a5fb47dd73057
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e51adcf99928f26014b6993369a60a9d4371759f23ddbd4d0df10105ce6de848
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eca13de65c0bea59c87ad6d8fd0d4d7083badd47dd919b5d407b77298ee36a85
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eed899d24d21a18eedea77f8f2860b70aa843e3f3757e8c53105f6eadd655d41
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f94fdbaf430c51b2d97e75c378a7e6cf66fbbe6984cc9348b9369a435fdaa2b1
AgentTesla
+ 10'531 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla persistence
Link:
https://tria.ge/reports/200722-5ghr6hglzs/
Behaviour
Modifies registry key
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Reads data files stored by FTP clients
Drops file in Drivers directory
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c3ca6a64f95f07e7557eb0ed7968c7d7bf735b08478f517061542059930bbf32

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

zip 3ca91a2e735130ab4727f875f030072a266e457e991752900f1e2cb1594cae1c

AgentTesla

Executable exe c3ca6a64f95f07e7557eb0ed7968c7d7bf735b08478f517061542059930bbf32

(this sample)

  
Dropped by
MD5 d61850729a25a566789b782ff97e6ce7
  
Dropped by
SHA256 3ca91a2e735130ab4727f875f030072a266e457e991752900f1e2cb1594cae1c
  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/30882/

Comments