MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c3b47e05f6960d1fdf233949ba2881dd32341ea84240ce3e9b59f0d29ec9fa7. 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: 17


Intelligence 17 IOCs YARA 25 File information Comments
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SHA256 hash: 3c3b47e05f6960d1fdf233949ba2881dd32341ea84240ce3e9b59f0d29ec9fa7
SHA3-384 hash: 64b94a20680cb0b79624665e622b10569bbff6a4d717eb28037c0315768c707ffc8c463a9de1073bf2781bbc4e251619
SHA1 hash: 046b3e26e91f8c261b2c4de34831a4bbeaf7fab7
MD5 hash: f07bada4320fae092a7353f47b4e3183
humanhash: coffee-alpha-berlin-diet
File name:Client.exe
Download: download sample
Signature QuasarRAT
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File size:356'352 bytes
First seen:2024-03-24 01:07:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'672 x AgentTesla, 19'489 x Formbook, 12'212 x SnakeKeylogger)
ssdeep 6144:VjNHXf500MPTrfOfVPfVdANHibPkBZDlr0ALSGxG:Zd50tr1NPrr0ALSGxG
TLSH T1F3749C577798E93BD1FE173AF03246044BB5D407BA12F38B5A6854B96D233868D823B3
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 smica83
Tags:exe POL QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
356
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
quasar
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ID:
1
File name:
3c3b47e05f6960d1fdf233949ba2881dd32341ea84240ce3e9b59f0d29ec9fa7.exe
Verdict:
Malicious activity
Analysis date:
2024-03-24 01:10:30 UTC
Tags:
rat quasar evasion
Link:
https://app.any.run/tasks/b0c1b5ae-5531-453f-a6ba-2741301c1a66

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

Behaviour
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Launching a process
Creating a process from a recently created file
Creating a file
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Gathering data
Verdict:
Malicious
Labled as:
MSIL.PasswordStealerA.Generic
Link:
https://www.hybrid-analysis.com/sample/3c3b47e05f6960d1fdf233949ba2881dd32341ea84240ce3e9b59f0d29ec9fa7
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bcff8639-b206-489e-bc81-9cd9fb69b009
Result
Threat name:
Quasar
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1414600
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Detected Quasar RAT
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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: 1414600 Sample: Client.exe Startdate: 24/03/2024 Architecture: WINDOWS Score: 100 32 ip-api.com 2->32 44 Snort IDS alert for network traffic 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 6 other signatures 2->50 9 Client.exe 15 5 2->9         started        14 Client.exe 2 2->14         started        signatures3 process4 dnsIp5 34 ip-api.com 208.95.112.1, 49729, 49730, 80 TUT-ASUS United States 9->34 28 C:\Users\user\AppData\Roaming\...\vapev4.exe, PE32 9->28 dropped 52 Detected Quasar RAT 9->52 54 Uses schtasks.exe or at.exe to add and modify task schedules 9->54 56 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->56 16 vapev4.exe 14 2 9->16         started        20 schtasks.exe 1 9->20         started        file6 signatures7 process8 dnsIp9 30 192.168.0.100, 4782 unknown unknown 16->30 36 Antivirus detection for dropped file 16->36 38 Multi AV Scanner detection for dropped file 16->38 40 Detected Quasar RAT 16->40 42 2 other signatures 16->42 22 schtasks.exe 1 16->22         started        24 conhost.exe 20->24         started        signatures10 process11 process12 26 conhost.exe 22->26         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3c3b47e05f6960d1fdf233949ba2881dd32341ea84240ce3e9b59f0d29ec9fa7
Detection:
quasar
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Link:
https://mwdb.cert.pl/sample/3c3b47e05f6960d1fdf233949ba2881dd32341ea84240ce3e9b59f0d29ec9fa7/
Threat name:
ByteCode-MSIL.Trojan.Quasar
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Status:
Malicious
First seen:
2024-03-23 18:33:34 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
31 of 37 (83.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hq5upyc7nfqnd7psgokjxiuidxjsgqpkqqsazy7jwwpq2kpmt6tq._file
Verdict:
malicious
Result
Malware family:
quasar
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Score:
  10/10
Tags:
family:quasar botnet:office04 spyware trojan
Link:
https://tria.ge/reports/240324-bg8bbsaa2s/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
192.168.0.100:4782
Unpacked files
SH256 hash:
3c3b47e05f6960d1fdf233949ba2881dd32341ea84240ce3e9b59f0d29ec9fa7
MD5 hash:
f07bada4320fae092a7353f47b4e3183
SHA1 hash:
046b3e26e91f8c261b2c4de34831a4bbeaf7fab7
Detections:
QuasarRAT
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malware_windows_xrat_quasarrat
Create hunting rule
CN_disclosed_20180208_KeyLogger_1
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cn_utf8_windows_terminal
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INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Quasar_RAT_2
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Quasar
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Vermin_Keylogger_Jan18_1
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MAL_QuasarRAT_May19_1
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MALWARE_Win_QuasarRAT
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INDICATOR_SUSPICIOUS_GENInfoStealer
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Quasar_RAT_1
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xRAT_1
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win_quasarrat_j1
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Link:
https://www.unpac.me/results/9e10cbf9-a7b6-4dae-828f-972a5e5b1f10/
Malware family:
QuasarRAT
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3c3b47e05f69/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/3c3b47e05f6960d1fdf233949ba2881dd32341ea84240ce3e9b59f0d29ec9fa7

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:CN_disclosed_20180208_KeyLogger_1
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Author:Florian Roth (Nextron Systems)
Description:Detects malware from disclosed CN malware set
Reference:https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details
Rule name:CN_disclosed_20180208_KeyLogger_1_RID3227
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details
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_Quasar_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
Rule name:MALWARE_Win_QuasarRAT
Create hunting rule
Author:ditekSHen
Description:QuasarRAT payload
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
Create hunting rule
Description:Detects QuasarRAT malware
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:Multifamily_RAT_Detection
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Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
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Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Quasar_RAT_1
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Author:@SOCRadar
Description:Detects Quasar RAT
Rule name:Quasar_RAT_1
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Author:Florian Roth (Nextron Systems)
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_1_RID2B54
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
Rule name:Quasar_RAT_2
Create hunting rule
Description:Detects Quasar RAT
Rule name:Quasar_RAT_2
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_2_RID2B55
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
Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash
Rule name:Vermin_Keylogger_Jan18_1
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Author:Florian Roth (Nextron Systems)
Description:Detects Vermin Keylogger
Reference:https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/
Rule name:Windows_Trojan_Quasarrat_e52df647
Create hunting rule
Author:Elastic Security
Rule name:win_quasar_rat_client
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Author:Matthew @ Embee_Research
Description:Detects strings present in Quasar Rat Samples.
Rule name:xRAT_1
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Author:Florian Roth (Nextron Systems)
Description:Detects Patchwork malware
Reference:https://goo.gl/Pg3P4W
Rule name:xRAT_1_RID2900
Create hunting rule
Author:Florian Roth
Description:Detects Patchwork malware
Reference:https://goo.gl/Pg3P4W

File information

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

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

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