MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b49068a198e8dcc90d1ae5d623c2cf669c93e067573b26c880b56b14e550e3a. 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: 18


Intelligence 18 IOCs YARA 21 File information Comments 1
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SHA256 hash: 4b49068a198e8dcc90d1ae5d623c2cf669c93e067573b26c880b56b14e550e3a
SHA3-384 hash: 78d1812d8fd030b06edd99d6481e3cf9bd395088569459b070234c2e6879acbe7360774d47ba7b03fe7181f0d0002e04
SHA1 hash: ffbf50f019be8426868b616960713fa4f596905c
MD5 hash: b05ef4b68b309f9aefa705d3c0ab50e1
humanhash: hamper-early-equal-football
File name:b05ef4b68b309f9aefa705d3c0ab50e1
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:3'266'048 bytes
First seen:2024-03-29 21:26:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 49152:2vPI22SsaNYfdPBldt698dBcjHKyRJ68bR3LoGdJJTHHB72eh2NT:2vA22SsaNYfdPBldt6+dBcjHKyRJ6GZ
Threatray 582 similar samples on MalwareBazaar
TLSH T18CE56B143BF85E27E1BBE277A5B0041267F0FC1AF363EB0B6581677A1C53B5098426A7
TrID 37.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
29.5% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
8.4% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
6.7% (.SCR) Windows screen saver (13097/50/3)
5.3% (.EXE) Win64 Executable (generic) (10523/12/4)
Reporter zbetcheckin
Tags:32 exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
330
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
4b49068a198e8dcc90d1ae5d623c2cf669c93e067573b26c880b56b14e550e3a.exe
Verdict:
Malicious activity
Analysis date:
2024-03-29 21:32:31 UTC
Tags:
rat asyncrat remote quasar
Link:
https://app.any.run/tasks/c3f28906-d3ac-449d-9d89-7662c7ae7a67

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

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Moving a file to the Program Files subdirectory
Replacing files
Sending an HTTP GET request
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm certreq crypto expand explorer hook infostealer keylogger lolbin quasarrat rat remote schtasks stealer stealer
Link:
https://www.filescan.io/uploads/66073227391c61c4790ec28b/reports/de40a383-75c4-47b9-a607-05538d906469/overview
Verdict:
Malicious
Labled as:
MSIL.PasswordStealerA.Generic
Link:
https://www.hybrid-analysis.com/sample/4b49068a198e8dcc90d1ae5d623c2cf669c93e067573b26c880b56b14e550e3a
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.
Malware family:
Quasar RAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fd7cd2a3-ed9f-42ac-be3a-4bcc4682d5d6
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1417663
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1417663 Sample: IrGn5MzTrO.exe Startdate: 29/03/2024 Architecture: WINDOWS Score: 100 29 ipwho.is 2->29 43 Snort IDS alert for network traffic 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 6 other signatures 2->49 9 IrGn5MzTrO.exe 4 2->9         started        13 softgui.exe 2 2->13         started        signatures3 process4 file5 27 C:\Users\user\AppData\Roaming\...\softgui.exe, PE32 9->27 dropped 51 Uses schtasks.exe or at.exe to add and modify task schedules 9->51 53 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->53 15 softgui.exe 14 8 9->15         started        19 schtasks.exe 1 9->19         started        signatures6 process7 dnsIp8 31 94.156.8.44, 4787, 49709 NET1-ASBG Bulgaria 15->31 33 ipwho.is 15.204.213.5, 443, 49711 HP-INTERNET-ASUS United States 15->33 35 Antivirus detection for dropped file 15->35 37 Multi AV Scanner detection for dropped file 15->37 39 Machine Learning detection for dropped file 15->39 41 2 other signatures 15->41 21 schtasks.exe 1 15->21         started        23 conhost.exe 19->23         started        signatures9 process10 process11 25 conhost.exe 21->25         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4b49068a198e8dcc90d1ae5d623c2cf669c93e067573b26c880b56b14e550e3a
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4b49068a198e8dcc90d1ae5d623c2cf669c93e067573b26c880b56b14e550e3a/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2024-03-29 21:27:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jneqncqzr2g4zegrvzowepbm6zu4spqgovz3e3eibnllctsvby5a._file
Verdict:
malicious
Similar samples:
15931de8e192e8932d881c6d450d52090f92f9b5e9f0f0b903cc5ec033b58b54
QuasarRAT
3ad07a1878c8b77f9fc0143d8f88c240d8d0b986d015d4c0cd881ad9c0d572e1
QuasarRAT
9eefa45ebc884b3b6fa4349d140963700c9f2c2543840d965b11c7f815346ab9
QuasarRAT
ced760664a7c5580e324d99d695b119c1f3ec94d1d9c56d1d3882347f0c6eb10
QuasarRAT
eddd85fd74df2ee82c700de8e49284a5043d3e69913c97e66385abcbab75bf49
QuasarRAT
+ 572 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:1st spyware trojan
Link:
https://tria.ge/reports/240329-1aqv5sah43/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Executes dropped EXE
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
94.156.8.44:4787
94.156.8.44:6606
Unpacked files
SH256 hash:
4b49068a198e8dcc90d1ae5d623c2cf669c93e067573b26c880b56b14e550e3a
MD5 hash:
b05ef4b68b309f9aefa705d3c0ab50e1
SHA1 hash:
ffbf50f019be8426868b616960713fa4f596905c
Detections:
QuasarRAT
Create hunting rule
malware_windows_xrat_quasarrat
Create hunting rule
win_quasarrat_j2
Create hunting rule
MALWARE_Win_QuasarStealer
Create hunting rule
cn_utf8_windows_terminal
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MAL_QuasarRAT_May19_1
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Link:
https://www.unpac.me/results/e4afde19-2538-49e2-a5a0-edaa4e950fa1/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4b49068a198e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4b49068a198e8dcc90d1ae5d623c2cf669c93e067573b26c880b56b14e550e3a

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:Diff_QuasarRAT_01
Create hunting rule
Author:schmidtsz
Description:Identify QuasarRAT samples
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Author:ditekSHen
Description:Detects executables containing common artifacts observed in infostealers
Rule name:MALWARE_Win_QuasarStealer
Create hunting rule
Author:ditekshen
Description:Detects Quasar infostealer
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Description:Detects QuasarRAT malware
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MAL_QuasarRAT_May19_1_RID2E1E
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:RC6_Constants
Create hunting rule
Author:chort (@chort0)
Description:Look for RC6 magic constants in binary
Reference:https://twitter.com/mikko/status/417620511397400576
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Generic_Threat_803feff4
Create hunting rule
Author:Elastic Security
Rule name:win_quasar_rat_client
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in Quasar Rat Samples.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

QuasarRAT

Executable exe 4b49068a198e8dcc90d1ae5d623c2cf669c93e067573b26c880b56b14e550e3a

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2795955/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments


Avatar
zbet commented on 2024-03-29 21:26:41 UTC

url : hxxp://185.196.10.233/fuufdfs.exe