MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 30c381a042e571d4d749f7aff6e1b17d77100ad35368c9a67136c1b5436c79cb. 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 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 30c381a042e571d4d749f7aff6e1b17d77100ad35368c9a67136c1b5436c79cb
SHA3-384 hash: 020801e82283002c2025e81a87b339aa03fb6b14896072a15086eaf251cd108625fc11f47074d878e1dffdbb9ffd7c56
SHA1 hash: aac8386cbce54562957aadb0dc7fe8e6e231cae3
MD5 hash: 9167d3b0a23d7297adec5765d95085e8
humanhash: spaghetti-butter-vegan-pennsylvania
File name:setup.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:3'266'048 bytes
First seen:2024-07-20 05:49:48 UTC
Last seen:2024-07-20 14:02:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 49152:XvGhBYjCO4Dt2d5aKCuVPzlEmVQL0wvwkaCO1TqMartToGd3THHB72eh2NT:Xvot2d5aKCuVPzlEmVQ0wvwfvxqb
TLSH T195E54A1437F85E23E1ABE373D5B0041767F1F82AB363EB0B6191677A5C53B504882AA7
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 Chainskilabs
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
383
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
30c381a042e571d4d749f7aff6e1b17d77100ad35368c9a67136c1b5436c79cb.zip
Verdict:
Malicious activity
Analysis date:
2024-07-20 13:22:45 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4803cc1d-88ad-4b0f-a3ba-f75a0290c187

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Malware.Generic-9883083-0
Create hunting rule

Win.Malware.Msilheracles-9900242-0
Create hunting rule

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL
Create hunting rule

Win.Packed.Downeks-6898097-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=669b500d2f6eaff4b90ef214
Tags:
Execution Generic Network Stealth Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the system32 subdirectories
Launching a process
Creating a process from a recently created file
Creating a file
DNS request
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/30c381a042e571d4d749f7aff6e1b17d77100ad35368c9a67136c1b5436c79cb
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/4f3a6cb8-6bfb-4cc2-9397-280b29e10f62
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1477160
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Drops executables to the windows directory (C:\Windows) and starts them
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
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: 1477160 Sample: setup.exe Startdate: 20/07/2024 Architecture: WINDOWS Score: 100 164 Jamalhacker-55716.portmap.host 2->164 194 Multi AV Scanner detection for domain / URL 2->194 196 Found malware configuration 2->196 198 Malicious sample detected (through community Yara rule) 2->198 200 11 other signatures 2->200 15 setup.exe 5 2->15         started        19 Windows defender.exe 9 2->19         started        signatures3 process4 file5 158 C:\Windows\System32\...\Windows defender.exe, PE32 15->158 dropped 160 C:\Users\user\AppData\Local\...\setup.exe.log, CSV 15->160 dropped 166 Uses schtasks.exe or at.exe to add and modify task schedules 15->166 168 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->168 21 Windows defender.exe 10 15->21         started        25 schtasks.exe 1 15->25         started        162 C:\Users\user\AppData\...\ijkaPK07wr5o.bat, DOS 19->162 dropped 27 cmd.exe 1 19->27         started        29 schtasks.exe 1 19->29         started        signatures6 process7 file8 150 C:\Users\user\AppData\...\0eI0b6usHqUt.bat, DOS 21->150 dropped 202 Hides that the sample has been downloaded from the Internet (zone.identifier) 21->202 31 cmd.exe 1 21->31         started        34 schtasks.exe 1 21->34         started        36 conhost.exe 25->36         started        204 Uses ping.exe to sleep 27->204 38 Windows defender.exe 27->38         started        41 conhost.exe 27->41         started        43 PING.EXE 1 27->43         started        45 chcp.com 1 27->45         started        47 conhost.exe 29->47         started        signatures9 process10 file11 206 Uses ping.exe to sleep 31->206 208 Uses ping.exe to check the status of other devices and networks 31->208 49 Windows defender.exe 9 31->49         started        53 conhost.exe 31->53         started        55 PING.EXE 1 31->55         started        57 chcp.com 1 31->57         started        59 conhost.exe 34->59         started        152 C:\Users\user\AppData\...\rsMXUlvgKtiW.bat, DOS 38->152 dropped 210 Hides that the sample has been downloaded from the Internet (zone.identifier) 38->210 61 cmd.exe 38->61         started        63 schtasks.exe 38->63         started        signatures12 process13 file14 144 C:\Users\user\AppData\...\bGLzl7XghfXO.bat, DOS 49->144 dropped 182 Hides that the sample has been downloaded from the Internet (zone.identifier) 49->182 65 cmd.exe 49->65         started        68 schtasks.exe 49->68         started        184 Uses ping.exe to sleep 61->184 70 Windows defender.exe 61->70         started        73 conhost.exe 61->73         started        75 chcp.com 61->75         started        77 PING.EXE 61->77         started        79 conhost.exe 63->79         started        signatures15 process16 file17 170 Uses ping.exe to sleep 65->170 81 Windows defender.exe 65->81         started        85 conhost.exe 65->85         started        87 chcp.com 65->87         started        89 PING.EXE 65->89         started        91 conhost.exe 68->91         started        154 C:\Users\user\AppData\...\uhRH0WLohJRa.bat, DOS 70->154 dropped 172 Hides that the sample has been downloaded from the Internet (zone.identifier) 70->172 93 cmd.exe 70->93         started        95 schtasks.exe 70->95         started        signatures18 process19 file20 146 C:\Users\user\AppData\...\g3QDNqMl0cww.bat, DOS 81->146 dropped 186 Hides that the sample has been downloaded from the Internet (zone.identifier) 81->186 97 cmd.exe 81->97         started        100 schtasks.exe 81->100         started        188 Uses ping.exe to sleep 93->188 102 Windows defender.exe 93->102         started        105 conhost.exe 93->105         started        107 chcp.com 93->107         started        109 PING.EXE 93->109         started        111 conhost.exe 95->111         started        signatures21 process22 file23 174 Uses ping.exe to sleep 97->174 113 Windows defender.exe 97->113         started        117 conhost.exe 97->117         started        119 chcp.com 97->119         started        121 PING.EXE 97->121         started        123 conhost.exe 100->123         started        156 C:\Users\user\AppData\...\U3iC4qNo6kXG.bat, DOS 102->156 dropped 176 Hides that the sample has been downloaded from the Internet (zone.identifier) 102->176 125 cmd.exe 102->125         started        127 schtasks.exe 102->127         started        signatures24 process25 file26 148 C:\Users\user\AppData\...\0tFwOaxZAItk.bat, DOS 113->148 dropped 190 Hides that the sample has been downloaded from the Internet (zone.identifier) 113->190 129 cmd.exe 113->129         started        132 schtasks.exe 113->132         started        192 Uses ping.exe to sleep 125->192 134 conhost.exe 125->134         started        136 chcp.com 125->136         started        138 PING.EXE 125->138         started        140 conhost.exe 127->140         started        signatures27 process28 signatures29 178 Uses ping.exe to sleep 129->178 180 Drops executables to the windows directory (C:\Windows) and starts them 129->180 142 conhost.exe 132->142         started        process30
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/30c381a042e571d4d749f7aff6e1b17d77100ad35368c9a67136c1b5436c79cb
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/30c381a042e571d4d749f7aff6e1b17d77100ad35368c9a67136c1b5436c79cb/
Threat name:
ByteCode-MSIL.Backdoor.Quasar
Create hunting rule
Status:
Malicious
First seen:
2024-07-20 05:50:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gdbydicc4vy5jv2j66x7nynrpv3racwtknumtjtrg3a3kq3mphfq._file
Verdict:
malicious
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:office04 spyware trojan
Link:
https://tria.ge/reports/240720-gjk7gayfpk/
Behaviour
Runs ping.exe
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in System32 directory
Checks computer location settings
Executes dropped EXE
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
Jamalhacker-55716.portmap.host:55716
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d3a6c552-52ee-434f-ab15-169669234c2a
Unpacked files
SH256 hash:
30c381a042e571d4d749f7aff6e1b17d77100ad35368c9a67136c1b5436c79cb
MD5 hash:
9167d3b0a23d7297adec5765d95085e8
SHA1 hash:
aac8386cbce54562957aadb0dc7fe8e6e231cae3
Detections:
QuasarRAT
Create hunting rule
malware_windows_xrat_quasarrat
Create hunting rule
win_quasarrat_j2
Create hunting rule
cn_utf8_windows_terminal
Create hunting rule
MAL_QuasarRAT_May19_1
Create hunting rule
Link:
https://www.unpac.me/results/bb6c86fb-1a9c-44ba-943d-5cd5cc8fc9e4/
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/30c381a042e571d4d749f7aff6e1b17d77100ad35368c9a67136c1b5436c79cb

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: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.

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