MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a50eed5a9bcddc44549138028157307991bdfc01046e601237b8444e0631e54e. 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: a50eed5a9bcddc44549138028157307991bdfc01046e601237b8444e0631e54e
SHA3-384 hash: 5f6ca70b4640091d982f922a032f412f87d30de7e158f27dc551c7368b763ac3f797ebc9055fa7e64132c01569f79ba1
SHA1 hash: 32a46870593fa7a08b0a95fb65ce404de2d639d5
MD5 hash: c6f9570a8c7e469ee9b6f5c057a0f414
humanhash: spring-hydrogen-sixteen-bluebird
File name:PO-20856200 OLEO FLEX_ PDF.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:965'632 bytes
First seen:2020-08-19 12:57:26 UTC
Last seen:2020-08-19 13:45:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:dKNLdi9zlvaVhsOl9d402E5u3c5nv5O7/zToL0crGkNe:dKNLdi9BCAOl9d402ES4ALEQg
Threatray 10'563 similar samples on MalwareBazaar
TLSH FA25B62D26811117D93D16359068AE817330AE5F3A81CBAFF5CB335EAD3339B392355A
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
AgentTesla SMTP exfil server:
mail.nsmelectronics.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
73
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/48526/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Siggen2.53754.15064.29839.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/438042
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 271511 Sample: PO-20856200 OLEO FLEX_ PDF.exe Startdate: 20/08/2020 Architecture: WINDOWS Score: 100 37 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->37 39 Found malware configuration 2->39 41 Yara detected AgentTesla 2->41 43 .NET source code contains very large array initializations 2->43 6 PO-20856200 OLEO FLEX_ PDF.exe 4 2->6         started        10 wimdows.exe 4 2->10         started        12 wimdows.exe 3 2->12         started        process3 file4 23 C:\Users\user\AppData\...\InstallUtil.exe, PE32 6->23 dropped 45 Writes to foreign memory regions 6->45 47 Allocates memory in foreign processes 6->47 49 Injects a PE file into a foreign processes 6->49 14 InstallUtil.exe 2 4 6->14         started        19 conhost.exe 10->19         started        21 conhost.exe 12->21         started        signatures5 process6 dnsIp7 27 mail.nsmelectronics.com 103.14.97.85, 49740, 587 TRUNKOZ-INTrunkozTechnologiesPvtLtdIN India 14->27 25 C:\Users\user\AppData\Roaming\...\wimdows.exe, PE32 14->25 dropped 29 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->29 31 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->31 33 Tries to steal Mail credentials (via file access) 14->33 35 5 other signatures 14->35 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a50eed5a9bcddc44549138028157307991bdfc01046e601237b8444e0631e54e/
Threat name:
ByteCode-MSIL.Hacktool.Mimikatz
Create hunting rule
Status:
Malicious
First seen:
2020-08-19 00:21:13 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uuho2wu3zxoeiverhabicvzqpgi337abarxgaerxxbce4brr4vha._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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1f6b2c3d63d17c19df0509f3c2f9a1d3952f5e9b76ef8cf8ab00199c32fd3f3a
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50946bb2be1a9fb71dfd068710893588bfcbeacdf2cde3e0270c2f6487594a99
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735371cde40d19b56069dc9cbf5c68e138b12bf9b188ef448abb7b36be143eb4
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878770eb180f92d911dbb519c93aac3b4b63269f45d8af9500f6a144e6635b7d
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94bb69e726461f198145fac175e2e27ccc72534ae29db90cfaef683e726adec2
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9752308c7c33970c7807d4ab84664591488445e4bfc8a403410c9171918636a1
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aee0659a73d3ce6eaaeafcfe545290f95e8e52c3f640fca9fcdb984a17ee27c0
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e1d050cfa74cd7368b639094d492ff4736662690b3c3cb59e9374c4afa15f9d6
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f7e513d0306588b6a5ab536513e1ada1cc326116d0840a8fc9a029f473645b45
AgentTesla
+ 10'553 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer family:agenttesla
Link:
https://tria.ge/reports/200819-4sltralrjn/
Behaviour
AgentTesla Payload
Agenttesla family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a50eed5a9bcddc44549138028157307991bdfc01046e601237b8444e0631e54e

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.

Cape
Cape
https://www.capesandbox.com/analysis/48526/

Comments