MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1e857555be92a0e4bfa8c0e5dc5b7b91a08e6daea0036e3bf23d3d3de79e495f. 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: 10


Intelligence 10 IOCs YARA 6 File information Comments

SHA256 hash: 1e857555be92a0e4bfa8c0e5dc5b7b91a08e6daea0036e3bf23d3d3de79e495f
SHA3-384 hash: 2daedae58d46c4418ea47ff3e7211453952f9fb6d249276d1830db5007370c7f0408f61ebebf4f4d9fce68d662393bdf
SHA1 hash: 66685b623a76db33ebd58559ced84cd52c55e6d8
MD5 hash: 02131e8f0df6fe1c45e971f505f80f6f
humanhash: stairway-hotel-bulldog-nuts
File name:1e857555be92a0e4bfa8c0e5dc5b7b91a08e6daea0036e3bf23d3d3de79e495f
Download: download sample
Signature QuasarRAT
File size:1'150'976 bytes
First seen:2021-08-30 06:24:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 32c5de998b5f069b26c94c8143b13c06 (7 x DCRat, 6 x AsyncRAT, 3 x QuasarRAT)
ssdeep 24576:eo9rH2nXcEFxUcDGCLaLqdOrsblHNuoJqhxqd8fMd2/At:eoKbVDGMaQxxHNu6qhxqUMdW4
Threatray 5'138 similar samples on MalwareBazaar
TLSH T1503512C4DE281276E17719B0A02368CCE9B50DE02F7CC4BB43F6479A7E72239A576587
Reporter JAMESWT_WT
Tags:exe QuasarRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
110
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1e857555be92a0e4bfa8c0e5dc5b7b91a08e6daea0036e3bf23d3d3de79e495f
Verdict:
Malicious activity
Analysis date:
2021-08-30 06:35:49 UTC
Tags:
evasion trojan

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for analyzing tools
Searching for the window
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Creating a file in the Program Files subdirectories
Launching a process
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a file
Sending a UDP request
Setting a keyboard event handler
Creating a file in the %AppData% subdirectories
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides threads from debuggers
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
PE file has a writeable .text section
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Black
Status:
Malicious
First seen:
2021-08-23 09:53:03 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
32 of 46 (69.57%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:quasar spyware trojan
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Looks up external IP address via web service
Loads dropped DLL
Executes dropped EXE
Quasar RAT
Unpacked files
SH256 hash:
1e857555be92a0e4bfa8c0e5dc5b7b91a08e6daea0036e3bf23d3d3de79e495f
MD5 hash:
02131e8f0df6fe1c45e971f505f80f6f
SHA1 hash:
66685b623a76db33ebd58559ced84cd52c55e6d8
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:INDICATOR_SUSPICIOUS_GENInfoStealer
Author:ditekSHen
Description:Detects executables containing common artifcats observed in infostealers
Rule name:MALWARE_Win_QuasarRAT
Author:ditekSHen
Description:QuasarRAT payload
Rule name:MAL_QuasarRAT_May19_1
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:Quasar
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
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
Rule name:Quasar_RAT_2
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.

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