MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 36f7bb3f776e1b4d97a2cf8cd65aac04593a797a8d46936d0900041995020465. 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


QuasarRAT


Vendor detections: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 36f7bb3f776e1b4d97a2cf8cd65aac04593a797a8d46936d0900041995020465
SHA3-384 hash: 93e690d931e6070a69630e72bbc3ef16e5ce84096ec10b93b5ad3346a70abf22749aac38f7ff50bf03aedf1e930cf67f
SHA1 hash: 300bcbbfd56740f21e1af62f0a4b67df4bdfffd3
MD5 hash: 71d8f70fcd46f5d2a88a2f9d40cebf38
humanhash: artist-gee-golf-twelve
File name:Build111.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:1'227'264 bytes
First seen:2020-08-04 21:45:21 UTC
Last seen:2020-08-04 22:29:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:DAyTKgMMBK0wM4o1WOPcHvMq36mG+QT9JQAXaA2hLXz/jxJVlmpODSwCvmb02xs/:DAyTp0tyCQT7RXCXz/jmpOvb02x5gv
Threatray 10 similar samples on MalwareBazaar
TLSH 52455B057BE8C607E1AEABB1E4B2460807F4E089F776EB8F498451E92C573409D563BF
Reporter James_inthe_box
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
97
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/38921/
Detection(s):
SecuriteInfo.com.Trojan.PWS.StealerNET.52.7592.6806.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
DNS request
Sending a custom TCP request
Sending a UDP request
Creating a file in the %temp% directory
Deleting a recently created file
Replacing files
Reading critical registry keys
Creating a file in the %AppData% subdirectories
Creating a window
Sending an HTTP GET request
Moving a file to the %AppData% subdirectory
Stealing user critical data
Result
Threat name:
Echelon Stealer
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Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/409991
Signature
.NET source code contains very large array initializations
Contains functionality to capture screen (.Net source)
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Modifies existing user documents (likely ransomware behavior)
Queries memory information (via WMI often done to detect virtual machines)
Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to steal Mail credentials (via file access)
Yara detected Echelon Stealer
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/36f7bb3f776e1b4d97a2cf8cd65aac04593a797a8d46936d0900041995020465/
Threat name:
ByteCode-MSIL.Trojan.EchelonStealer
Create hunting rule
Status:
Malicious
First seen:
2020-08-04 21:44:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=g333wp3xnynu3f5cz6gnmwvmarmtu6l2rvdjg3ijaacbtficarsq._file
Verdict:
unknown
Similar samples:
22c3a95888a885a0120c5e991ca0dda76239b5c92a1a416465edfe67d4d0a160
QuasarRAT
264662e60005a099f9aaaa88e1dcee1381a3a187a158fdfbc40bbd5024407cb1
QuasarRAT
417d90bf7d85a12dd9b199f97a0f7315532a71e0c09c124d50258dda532e0b20
QuasarRAT
422761ce807ba569d378b3130493e84a531d310d1ed8e0559d6313fdf91cd5b0
QuasarRAT
4e14841c96a09f5850d1cf5fcb3526714c22d7174e3f75c8a309d8db36ecef93
QuasarRAT
517e1659c9d9ee4de266b3ade2d06965b670d17082ae2c2c97b4c694bb29152a
QuasarRAT
861878b319e66fd632f7d7623f0b56028f18d1e315680a15fc161a451ac9c788
QuasarRAT
9a3b89ea2396b22020fc8e3bde1b832ca70d8b875b088f451f54e85f359380df
QuasarRAT
b60f00c8d27d8282118e085eb407d706388186487ff014b1dcf238efe1ed940f
QuasarRAT
e892e7f5b3919e1c3d92ee26e7b4313e753cad797e3397138a1ccef2b1289b1d
QuasarRAT
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer family:agenttesla
Link:
https://tria.ge/reports/200804-b3v9rnfjde/
Behaviour
Agenttesla family
AgentTesla Payload
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/36f7bb3f776e1b4d97a2cf8cd65aac04593a797a8d46936d0900041995020465

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:Quasar_RAT_1
Create hunting rule
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf

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/38921/

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