MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a06f37e10c68b0cc5a7649e161625303f6e8d6a3fe1624cbb712e7a710668c2. 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: 8

Intelligence 8 IOCs YARA 14 File information Comments

SHA256 hash:	5a06f37e10c68b0cc5a7649e161625303f6e8d6a3fe1624cbb712e7a710668c2
SHA3-384 hash:	4ecd7044245e8cb4f4af57a02952f02dd3ded6bae15e0003976d8afc9f7b4f008fe501b235e5ede30c94591032575438
SHA1 hash:	8fc95aec3715c8f94431f1e7abcf2957c3c8493f
MD5 hash:	a84c703806946a0fd13e1748d4ade37c
humanhash:	magnesium-mississippi-fish-fifteen
File name:	a84c703806946a0fd13e1748d4ade37c.exe
Download:	download sample
Signature	QuasarRAT Create hunting rule
File size:	4'154'880 bytes
First seen:	2021-06-02 11:12:04 UTC
Last seen:	2021-06-02 11:59:52 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep	768:8xn+qBpF3BUHCjzmLGU4OQ79w5My8wPmGYmW0XsN3rBy9VYdyzm9UHLmksmZ3JmH:8oq
Threatray	4 similar samples on MalwareBazaar
TLSH	6016E0450AA0356AB52B37D1FE4F03DE5F82E9B410B7E41E3A21974BCE24F452E92376
Reporter	abuse_ch
Tags:	exe QuasarRAT RAT

Intelligence

File Origin

# of uploads :

# of downloads :

161

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

wqeifj.exe

Verdict:

Malicious activity

Analysis date:

2021-05-31 23:14:45 UTC

Tags:

evasion opendir loader trojan rat redline stealer grandsteal phishing

Link:

https://app.any.run/tasks/d51bdef8-8ea6-4e0f-bb70-2e23ff8277a7

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/164015/

Detection(s):

SecuriteInfo.com.Trojan.GenericKD.37011145.28706.29586.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a UDP request

Running batch commands

Creating a process with a hidden window

Launching a process

Unauthorized injection to a recently created process

Adding an access-denied ACE

Creating a file

Connecting to a non-recommended domain

Sending an HTTP GET request

Creating a file in the %temp% directory

Reading critical registry keys

DNS request

Using the Windows Management Instrumentation requests

Creating a window

Searching for the window

Stealing user critical data

Launching a tool to kill processes

Result

Verdict:

MALICIOUS

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Result

Threat name:

Grandsteal

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/795806

Signature

.NET source code contains potential unpacker

.NET source code contains very large strings

Found many strings related to Crypto-Wallets (likely being stolen)

Hides threads from debuggers

Injects a PE file into a foreign processes

Machine Learning detection for sample

May check the online IP address of the machine

Multi AV Scanner detection for submitted file

Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)

Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)

Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)

Tries to harvest and steal browser information (history, passwords, etc)

Uses known network protocols on non-standard ports

Yara detected Grandsteal

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/5a06f37e10c68b0cc5a7649e161625303f6e8d6a3fe1624cbb712e7a710668c2/

Threat name:

ByteCode-MSIL.Trojan.Quasar

Status:

Malicious

First seen:

2021-05-31 20:59:51 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

13 of 29 (44.83%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=lidpg7qqy2fqzrnhmspbmfrfga7w5dlkh7qwetf3oexhu4igndba._file

Verdict:

unknown

QuasarRAT

1e17f40e9221c60fa2516f0c59806053a35cf826a1f305502425bf7349e120f4

QuasarRAT

2b88932519ef22b207260661f4ad426da0c40544f786d0748c7cfbbee32d6853

QuasarRAT

7dce107f03eaeb9834f9c1a822dd42ef01a058500dfc275fc595f2a3f83e4198

QuasarRAT

Result

Malware family:

n/a

Score:

7/10

Tags:

discovery spyware stealer

Link:

https://tria.ge/reports/210602-djbccr9dxn/

Behaviour

Delays execution with timeout.exe

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Program crash

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

Checks installed software on the system

Looks up external IP address via web service

Reads user/profile data of web browsers

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Glupteba

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/5a06f37e10c68b0cc5a7649e161625303f6e8d6a3fe1624cbb712e7a710668c2

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:	Choice_Del_method_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	cmd ping IP nul del

Rule name:	Cryptocoin_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	Steam in files like avemaria

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_CryptoWallets Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu Create hunting rule
Author:	ditekSHen
Description:	Detect executables with stomped PE compilation timestamp that is greater than local current time

Rule name:	INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture Create hunting rule
Author:	ditekSHen
Description:	Detect executables with stomped PE compilation timestamp that is greater than local current time

Rule name:	IPPort_combo_mem Create hunting rule
Author:	James_inthe_box
Description:	IP and port combo

Rule name:	pe_imphash Create hunting rule

Rule name:	Ping_Del_method_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	cmd ping IP nul del

Rule name:	Select_from_enumeration Create hunting rule
Author:	James_inthe_box
Description:	IP and port combo

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	Telegram_stealer_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	Telegram in files like avemaria

Rule name:	win_grandsteal_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator