MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf8af2f1ae9d243e207e34fffd7aefc629645d729fa4a4e76f93535fa036d92e. 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: 14


Intelligence 14 IOCs YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bf8af2f1ae9d243e207e34fffd7aefc629645d729fa4a4e76f93535fa036d92e
SHA3-384 hash: 09b196d14bfbea6a4a7f112a20fb5db89829bd41384a06b65e1087fa00042d49de4db27dfb9a5e0f135b76d4a2f26822
SHA1 hash: 571cb759145ec2abb098b5a29c75f2460a732eb9
MD5 hash: a200d1bc11f3a46dba3f2e521f901415
humanhash: carbon-eight-bravo-monkey
File name:Solara.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:2'280'960 bytes
First seen:2025-07-28 11:09:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 49152:H07fRbirmGNn4+KK8U7Lbwa+bXaCjjmdze:H8QhNnWK8U7LbwbrBjj
Threatray 64 similar samples on MalwareBazaar
TLSH T13BB5BF243DEA501AF1B7AF75DBD074DB8E6EF223770A965D149103860E23A41EDC723A
TrID 58.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
13.2% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
8.4% (.EXE) Win64 Executable (generic) (10522/11/4)
5.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter burger
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
36
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Solara.exe
Verdict:
No threats detected
Analysis date:
2025-07-28 11:09:03 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b115900c-cc47-4f00-b59e-4d8266da48d2

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/17343/
Detection(s):
Win.Malware.Generic-9883083-0
Create hunting rule

Win.Malware.Bulz-9933026-0
Create hunting rule

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

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68875a660b4775fb2132a1d7
Tags:
autorun emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the system32 subdirectories
Launching a process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 hacktool packed privilege reconnaissance
Link:
https://www.filescan.io/uploads/68875a60a16348d835f1217d/reports/fa21affa-97ed-4a62-9091-de2df7081fd6/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/bf8af2f1ae9d243e207e34fffd7aefc629645d729fa4a4e76f93535fa036d92e
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2c97a0f2-1937-4951-ae4c-7b8e86f29d61
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1745482
Signature
.NET source code contains potential unpacker
Connects to many ports of the same IP (likely port scanning)
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)
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1745482 Sample: Solara.exe Startdate: 28/07/2025 Architecture: WINDOWS Score: 100 31 Sk1dded-21654.portmap.host 2->31 33 ipwho.is 2->33 45 Found malware configuration 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 Yara detected Quasar RAT 2->49 51 4 other signatures 2->51 9 Solara.exe 5 2->9         started        13 Client.exe 3 2->13         started        signatures3 process4 file5 27 C:\Windows\System32\SubDir\Client.exe, PE32 9->27 dropped 29 C:\Users\user\AppData\...\Solara.exe.log, CSV 9->29 dropped 53 Drops executables to the windows directory (C:\Windows) and starts them 9->53 55 Uses schtasks.exe or at.exe to add and modify task schedules 9->55 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->57 15 Client.exe 14 10 9->15         started        19 schtasks.exe 1 9->19         started        signatures6 process7 dnsIp8 35 Sk1dded-21654.portmap.host 193.161.193.99, 21654, 49691 BITREE-ASRU Russian Federation 15->35 37 ipwho.is 15.204.213.5, 443, 49693 HP-INTERNET-ASUS United States 15->37 39 Multi AV Scanner detection for dropped file 15->39 41 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->41 43 Installs a global keyboard hook 15->43 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/bf8af2f1ae9d243e207e34fffd7aefc629645d729fa4a4e76f93535fa036d92e
Verdict:
inconclusive
YARA:
11 match(es)
Tags:
.Net Executable Fody/Costura Packer PDB Path PE (Portable Executable) SOS: 0.14 SOS: 0.15 SOS: 0.18 SOS: 0.19 SOS: 0.20 SOS: 0.22 SOS: 0.23 SOS: 0.24 SOS: 0.25 SOS: 0.26 SOS: 0.27 SOS: 0.29 SOS: 0.32 SOS: 0.34 SOS: 0.35 SOS: 0.60 Win 32 Exe x86
Link:
https://app.malva.re/file/a200d1bc11f3a46dba3f2e521f901415
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bf8af2f1ae9d243e207e34fffd7aefc629645d729fa4a4e76f93535fa036d92e/
Verdict:
Malicious
Threat:
HEUR:Trojan.MSIL.Quasar
Link:
https://tip.neiki.dev/file/bf8af2f1ae9d243e207e34fffd7aefc629645d729fa4a4e76f93535fa036d92e
Threat name:
Win32.Trojan.Egairtigado
Create hunting rule
Status:
Malicious
First seen:
2025-07-28 11:09:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x6fpf4notusd4id6gt7726xpyyuwixlst6skjz3psnjv7ibw3exa._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
4ffb29bf50ade68db76b3ce13f8a4dfad2c1d72276af19abd6f62f2fd540be89
QuasarRAT
6ce2462286dc687b1ccab7592a3a68c0504b2639e28cfb8a849e0cd12763fea0
QuasarRAT
7607946bbdeb75cfa95d20ad272299405c86df13f17426fca36e4dfa6264d252
QuasarRAT
9019276cf50b5e8397a04c81e75faf35308f2dd7b480db9a060e1c50e66678f2
QuasarRAT
bf8af2f1ae9d243e207e34fffd7aefc629645d729fa4a4e76f93535fa036d92e
QuasarRAT
c7cfa4eb2cce54eae7d5af7025931c424e48c3dd28dcdb76399e4ab23a4c1f6e
QuasarRAT
error
QuasarRAT
+ 54 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
execution persistence
Link:
https://tria.ge/reports/250728-m895sadn3x/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Drops file in System32 directory
Executes dropped EXE
Verdict:
Malicious
Tags:
Win.Malware.Generic-9883083-0
YARA:
n/a
Link:
https://app.threat.zone/submission/e1babcb6-4ddc-4b7f-8cbb-e4446db1a043
Unpacked files
SH256 hash:
bf8af2f1ae9d243e207e34fffd7aefc629645d729fa4a4e76f93535fa036d92e
MD5 hash:
a200d1bc11f3a46dba3f2e521f901415
SHA1 hash:
571cb759145ec2abb098b5a29c75f2460a732eb9
Link:
https://www.unpac.me/results/e12fe321-4b8f-4da4-8016-56e8eed52135/
SH256 hash:
e54b3f90f18efaba3b4e714533d5e1f0aaf2f656b9166d6498e15b659cc41b8c
MD5 hash:
4a3c2b2b73407e79a9ebc6caece6c144
SHA1 hash:
70f64ab70fdc0c484da6f914d2742115c7a97141
Detections:
SUSP_NET_Large_Static_Array_In_Small_File_Jan24
Create hunting rule
HKTL_NET_GUID_Quasar
Create hunting rule
Link:
https://www.unpac.me/results/e12fe321-4b8f-4da4-8016-56e8eed52135/
Parent samples :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 hash:
c9257da3c8f84975156869806556088cdba57c8623624b4aa2f5e24fa387eb4f
MD5 hash:
d5a8e5fe73f67e7d6e723d1f41850282
SHA1 hash:
0211e61da7a6421fcd02a432315d134d17e74126
Link:
https://www.unpac.me/results/e12fe321-4b8f-4da4-8016-56e8eed52135/
SH256 hash:
afeb41649fae454f18b0b466ca0e889066918240523027f2b677e2c2645e37b3
MD5 hash:
5b8915abfc523103d3348429941b2592
SHA1 hash:
123c5435669a1a0a5115bce176218fe0c873925f
Link:
https://www.unpac.me/results/e12fe321-4b8f-4da4-8016-56e8eed52135/
SH256 hash:
d5235265564f0bfd23b7279d7bdccc9ea6383ed07c5d0bfdf6c99029af9a2c0c
MD5 hash:
1d3dd9fcc077e6b4f88c05b9aef53ee6
SHA1 hash:
12b33858bc84f54b8aa8dbcb5a0ec2da043a6f66
Link:
https://www.unpac.me/results/e12fe321-4b8f-4da4-8016-56e8eed52135/
SH256 hash:
168dca21847b9ff50929029a8347f6e12308ef170cb131060653cddc9dbbcc11
MD5 hash:
45b0111f19e7196b6cd6f1f3ca787021
SHA1 hash:
31826626560a4c5dbe6336a35894455b159c4f0f
Link:
https://www.unpac.me/results/e12fe321-4b8f-4da4-8016-56e8eed52135/
SH256 hash:
c9736bed57d137a0bd4a454a70436020312db5a365bdd243037e766695c18ccd
MD5 hash:
41b34eab1585d5381c56730b93dd1310
SHA1 hash:
510b640517342dbcc40c81b63db23fa1444a71ed
Link:
https://www.unpac.me/results/e12fe321-4b8f-4da4-8016-56e8eed52135/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bf8af2f1ae9d/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/bf8af2f1ae9d243e207e34fffd7aefc629645d729fa4a4e76f93535fa036d92e

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:Costura_Protobuf
Create hunting rule
Author:@bartblaze
Description:Identifies Costura and Protobuf in .NET assemblies, respectively for storing resources and (de)serialization. Seen together might indicate a suspect binary.
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_EXE_Packed_Fody
Create hunting rule
Author:ditekSHen
Description:Detects executables manipulated with Fody
Rule name:Indicator_MiniDumpWriteDump
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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/17343/

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 (GUARD_CF)high

Comments