MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 861878b319e66fd632f7d7623f0b56028f18d1e315680a15fc161a451ac9c788. 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

SHA256 hash: 861878b319e66fd632f7d7623f0b56028f18d1e315680a15fc161a451ac9c788
SHA3-384 hash: 5ff9abbfb22d0f567eddbafee666d2186c9ef451ab30e072dfb302ead1d45998f55ecae7ad1c66a940b30c477ad97e27
SHA1 hash: f538fe80f76330e7d548e4f9b5171a56116d8e5e
MD5 hash: 7dba2e8ecbad5b33646e03a4af78967a
humanhash: beer-bacon-sink-cold
File name:DataStealer from 1_2
Download: download sample
Signature QuasarRAT
File size:1'219'584 bytes
First seen:2020-07-17 08:57:24 UTC
Last seen:2020-07-17 09:37:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:LntHgG2FtTvZBpYOhhANdAAXQAXWQzhLP32jsXT7rlLiCJNTaaipq:Lntw/7ouAXRXBP32jGpHDlipq
Threatray 11 similar samples on MalwareBazaar
TLSH 7A455B017BE8DB07E0AF17B2E4B24A1807F9F485F6A7EB4F058855EA2C523406D417AF
Reporter JAMESWT_WT
Tags:DataStealer QuasarRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
118
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Sending an HTTP GET request
Launching the default Windows debugger (dwwin.exe)
Sending a TCP request to an infection source
Result
Threat name:
Unknown
Detection:
malicious
Classification:
troj.spyw.evad
Score:
96 / 100
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
Multi AV Scanner detection for submitted file
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)
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.DarkStealer
Status:
Malicious
First seen:
2020-06-29 08:51:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Result
Malware family:
echelon
Score:
  10/10
Tags:
spyware discovery stealer family:echelon
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Modifies system certificate store
Suspicious use of NtSetInformationThreadHideFromDebugger
Looks up external IP address via web service
Checks installed software on the system
Reads user/profile data of web browsers
Echelon log file
Echelon
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:Quasar_RAT_1
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.

Comments