MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bc98013c1d9475dc3bf7eaeae5a74270da0f9d7fe433b4f00a910d93e567450d. 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 33 File information Comments
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SHA256 hash: bc98013c1d9475dc3bf7eaeae5a74270da0f9d7fe433b4f00a910d93e567450d
SHA3-384 hash: afa24eb730e5c9852fc112b21f8569d44f350a2754e6e19c7f5ec719a34d8cba4ee13d73113cc90976740c19979ba561
SHA1 hash: c1b4b2cc192dc6698424f12f5edbe428476c93ab
MD5 hash: 1d2ded396e145566305afaacce9b8e17
humanhash: echo-romeo-one-south
File name:Client.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:376'844 bytes
First seen:2025-11-23 00:05:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'854 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep 6144:grNHXf500MGO3nVg3P+24LbQhSFnvX9JkdQfQWELBq:Kd50zF2m24QhWnvEWfQWELBq
Threatray 749 similar samples on MalwareBazaar
TLSH T1FC849D137798D97BD1FE173AE432061407B0DA9BB612F38B5A5C56B82D133868E513B3
TrID 46.3% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
19.7% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
10.4% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
6.6% (.EXE) Win64 Executable (generic) (10522/11/4)
4.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Magika pebin
Reporter Hexastrike
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
42
Origin country :
IE IE
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
Client.exe
Verdict:
Malicious activity
Analysis date:
2025-11-23 08:34:13 UTC
Tags:
quasar
Link:
https://app.any.run/tasks/dd71172c-64af-4a70-829f-902f6028981d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
QuasarRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/39793/
Detection(s):
Win.Packed.Generic-9829635-0
Create hunting rule

Win.Trojan.Generic-9829636-0
Create hunting rule

Win.Packed.Generic-9830106-0
Create hunting rule

Win.Packed.QuasarRAT-10012744-0
Create hunting rule

Win.Trojan.Generic-6295765-0
Create hunting rule

Win.Malware.Generic-6623004-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=692260ea140de26f6c2c6882
Tags:
dropper quasar virus micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 byteguard fingerprint infostealer keylogger lolbin obfuscated obfuscated packed quasar rat reconnaissance runonce stealer vbnet vermin xrat
Link:
https://www.filescan.io/uploads/69225b19eecb08e4aa452be1/reports/6f0580c9-dec0-42cb-ad5a-de635dca633c/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/bc98013c1d9475dc3bf7eaeae5a74270da0f9d7fe433b4f00a910d93e567450d
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-08T03:59:00Z UTC
Last seen:
2025-11-23T14:53:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/bc98013c1d9475dc3bf7eaeae5a74270da0f9d7fe433b4f00a910d93e567450d/results?tab=lookup
Gathering data
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/bc98013c1d9475dc3bf7eaeae5a74270da0f9d7fe433b4f00a910d93e567450d
Verdict:
QuasarRat
YARA:
16 match(es)
Tags:
.Net Executable Malicious Managed .NET PE (Portable Executable) PE Memory-Mapped (Dump) QuasarRat RAT
Malware Config
C2 Extraction:
PORT:
CNC: 193.106.196.220
PORT:
CNC: 193.106.196.220
Link:
https://app.malva.re/file/1d2ded396e145566305afaacce9b8e17
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bc98013c1d9475dc3bf7eaeae5a74270da0f9d7fe433b4f00a910d93e567450d/
Threat name:
ByteCode-MSIL.Backdoor.Quasar
Create hunting rule
Status:
Malicious
First seen:
2025-11-07 11:00:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
30 of 36 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xsmacpa5sr25yo7x5lvolj2codna7hl74qz3j4aksegzhzlhiugq._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
268501cbc4704142a83673aab0b20dc7b8bf9221b70f0e7bbb42f072ed341e7a
QuasarRAT
4090ddde1d1ffb846bd2acf0e0f6b355ea151e0b38c33f029049ac6e93919043
QuasarRAT
d42ac4e3da7e1aa7ae41d0547c0cdcf1e30300fb2ea96cea42bb1d43a5000b27
QuasarRAT
error
QuasarRAT
f4a0a365e6f6abe9956cf2f52ee5527b215774968e14fb9e2a02f015bc9bda50
QuasarRAT
+ 739 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:office04 discovery
Link:
https://tria.ge/reports/251123-a862xawlcs/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Malware Config
C2 Extraction:
193.106.196.220:1604
Verdict:
Unknown
Tags:
rat quasar_rat vermin
YARA:
JPCERTCC_Quasar MALWARE_Win_QuasarRAT MAL_QuasarRAT_May19_1 Quasar_RAT_1 Quasar_RAT_2 Vermin_Keylogger_Jan18_1 Windows_Trojan_Quasarrat_e52df647 malware_Quasar_strings malware_windows_quasarrat win_quasar_rat_client
Link:
https://app.threat.zone/submission/65f8d8b5-d73a-4c85-9147-dbfe18ea75c8
Unpacked files
SH256 hash:
bc98013c1d9475dc3bf7eaeae5a74270da0f9d7fe433b4f00a910d93e567450d
MD5 hash:
1d2ded396e145566305afaacce9b8e17
SHA1 hash:
c1b4b2cc192dc6698424f12f5edbe428476c93ab
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/9ed8e5a2-77a1-46ac-bf5a-a6f5ef3abae4/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.42
Link:
https://yomi.yoroi.company/submissions/bc98013c1d9475dc3bf7eaeae5a74270da0f9d7fe433b4f00a910d93e567450d

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
Create hunting rule
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:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
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
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:Quasar
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
Rule name:quasarrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:QuasarRAT
Create hunting rule
Author:ditekshen
Description:QuasarRAT payload
Rule name:quasarrat_kingrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:Quasar_RAT_1
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_1
Create hunting rule
Author:@SOCRadar
Description:Detects Quasar RAT
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
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
Create hunting rule
Description:Detects Quasar RAT
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:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:Vermin_Keylogger_Jan18_1
Create hunting rule
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
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in Quasar Rat Samples.
Rule name:xRAT_1
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/39793/

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