MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c656b80ba545c37b4a4e5db63784bc119354d728d7bedbfa10a8ae6631f5d165. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c656b80ba545c37b4a4e5db63784bc119354d728d7bedbfa10a8ae6631f5d165
SHA3-384 hash: 10b63e0eff7568562fe39d635805bd8e133d5dd4ba002127086c559112cd0d7ebeac892c35afd6b6546e49d5391e4701
SHA1 hash: 5860062006f850e8e86af07ce2b8640d77c7301b
MD5 hash: e133cfa2403247675216c8f317951b10
humanhash: lithium-washington-kentucky-ack
File name:cs2.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:1'042'944 bytes
First seen:2026-02-28 11:25:41 UTC
Last seen:2026-02-28 14:44:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash a9c887a4f18a3fede2cc29ceea138ed3 (36 x CoinMiner, 18 x AsyncRAT, 17 x QuasarRAT)
ssdeep 24576:fCtzZo1iwJpFTnoLqxYXgEu1e4jkw6Hfm8+a:6bolsmxYw71fkP+81
Threatray 2 similar samples on MalwareBazaar
TLSH T19725E097BC729EFCE1448DB79454E2DE0DBAA3AEC7D21DD2D1B61890826AD30D171B0C
TrID 33.4% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
13.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
13.2% (.EXE) Win64 Executable (generic) (6522/11/2)
10.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter burger
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
125
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
PS2EXE UnamBinder
Details
PS2EXE
an extracted PowerShell script
UnamBinder
XOR decrypted component(s)
Link:
https://research.acce.ciphertechsolutions.com/results/3c701c46-662f-45ca-853a-4355b93d0121/
Malware family:
quasar
Create hunting rule
ID:
1
File name:
cs2external.exe
Verdict:
Malicious activity
Analysis date:
2026-02-28 11:23:16 UTC
Tags:
rat quasar remote evasion
Link:
https://app.any.run/tasks/4dae2b2f-9d91-4346-9e93-182dc9c4a393

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/54997/
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69a2d09f8fffa866e3b33eea
Tags:
infosteal autorun quasar emotet
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/69a2d0d410e80629d4f67f33/reports/3f0d4a64-ca10-4c53-a850-7258e1c850b8/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c656b80ba545c37b4a4e5db63784bc119354d728d7bedbfa10a8ae6631f5d165
Result
Gathering data
Verdict:
Malicious
File Type:
exe x32
Detections:
HEUR:Trojan.Win32.Generic HEUR:Trojan-Dropper.Win32.Agent.gen
Link:
https://opentip.kaspersky.com/c656b80ba545c37b4a4e5db63784bc119354d728d7bedbfa10a8ae6631f5d165/results?tab=lookup
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a5ee1c45-33f3-4a71-8c26-773eac55ba34
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1876344
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
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
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Reads the Security eventlog
Reads the System eventlog
Sample uses string decryption to hide its real strings
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: Schedule system process
Sigma detected: Suspicious Scheduled Task Creation Involving Temp Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Suricata IDS alerts for network traffic
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: 1876344 Sample: cs2.exe Startdate: 28/02/2026 Architecture: WINDOWS Score: 100 48 ipwho.is 2->48 62 Suricata IDS alerts for network traffic 2->62 64 Found malware configuration 2->64 66 Malicious sample detected (through community Yara rule) 2->66 68 13 other signatures 2->68 10 cs2.exe 3 2->10         started        13 powershell.exe 2->13         started        15 fontdrvhost.exe 2->15         started        signatures3 process4 file5 44 C:\Users\user\AppData\...\cs2external.exe, PE32+ 10->44 dropped 46 C:\Users\user\AppData\Local\Temp\1nd .exe, PE32 10->46 dropped 17 1nd .exe 31 10->17         started        20 cs2external.exe 1 10->20         started        22 conhost.exe 13->22         started        process6 signatures7 54 Loading BitLocker PowerShell Module 17->54 56 Reads the Security eventlog 17->56 58 Reads the System eventlog 17->58 24 fontdrvhost.exe 14 2 17->24         started        28 powershell.exe 14 16 17->28         started        30 WmiPrvSE.exe 17->30         started        36 4 other processes 17->36 60 Multi AV Scanner detection for dropped file 20->60 32 conhost.exe 20->32         started        34 cmd.exe 1 20->34         started        process8 dnsIp9 50 ipwho.is 104.20.44.133, 443, 49700 CLOUDFLARENETUS United States 24->50 70 Uses schtasks.exe or at.exe to add and modify task schedules 24->70 72 Hides that the sample has been downloaded from the Internet (zone.identifier) 24->72 74 Installs a global keyboard hook 24->74 38 schtasks.exe 24->38         started        52 91.232.103.250, 3250, 49693, 49695 AVENA-PL unknown 28->52 40 conhost.exe 28->40         started        signatures10 process11 process12 42 conhost.exe 38->42         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c656b80ba545c37b4a4e5db63784bc119354d728d7bedbfa10a8ae6631f5d165
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c656b80ba545c37b4a4e5db63784bc119354d728d7bedbfa10a8ae6631f5d165/
Verdict:
Malicious
Threat:
Family.QUASAR
Link:
https://tip.neiki.dev/file/c656b80ba545c37b4a4e5db63784bc119354d728d7bedbfa10a8ae6631f5d165
Threat name:
Win32.Dropper.Dapato
Create hunting rule
Status:
Malicious
First seen:
2026-02-28 11:25:26 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
29 of 36 (80.56%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yzllqc5fixbxwssolw3dpbf4cgjvjvzi267nx6qqvcxgmmpv2fsq._file
Verdict:
malicious
Label(s):
admintool_ps2exe
Create hunting rule
Similar samples:
36604beade276848704a2d980d46402eb2bd3e2465eb9ee3a3bf93dd3bbc905a
QuasarRAT
c656b80ba545c37b4a4e5db63784bc119354d728d7bedbfa10a8ae6631f5d165
QuasarRAT
error
QuasarRAT
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:office04 defense_evasion discovery execution persistence spyware trojan
Link:
https://tria.ge/reports/260228-njxntsdv4a/
Behaviour
Modifies data under HKEY_USERS
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in System32 directory
Indicator Removal: File Deletion
Checks computer location settings
Executes dropped EXE
Badlisted process makes network request
Downloads MZ/PE file
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
91.232.103.250:3250
Unpacked files
SH256 hash:
c656b80ba545c37b4a4e5db63784bc119354d728d7bedbfa10a8ae6631f5d165
MD5 hash:
e133cfa2403247675216c8f317951b10
SHA1 hash:
5860062006f850e8e86af07ce2b8640d77c7301b
Link:
https://www.unpac.me/results/b7849a77-e935-4f02-bf4a-12af8c2bd988/
SH256 hash:
0f088adb4cbddf7dabb576c9a88b21a73ee4940c6091961f15d9a5d4b7e183e5
MD5 hash:
fe9c2dff0f130aff18a1a03656035c2b
SHA1 hash:
8d0d8eddd59b52c875b366cb14938276c436930d
Link:
https://www.unpac.me/results/b7849a77-e935-4f02-bf4a-12af8c2bd988/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c656b80ba545/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.60
Link:
https://yomi.yoroi.company/submissions/c656b80ba545c37b4a4e5db63784bc119354d728d7bedbfa10a8ae6631f5d165

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:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.

File information

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

QuasarRAT

Executable exe 36604beade276848704a2d980d46402eb2bd3e2465eb9ee3a3bf93dd3bbc905a

QuasarRAT

Executable exe c656b80ba545c37b4a4e5db63784bc119354d728d7bedbfa10a8ae6631f5d165

(this sample)

  
Delivery method
Distributed via web download
  
Dropped by
SHA256 36604beade276848704a2d980d46402eb2bd3e2465eb9ee3a3bf93dd3bbc905a
  
Dropped by
MD5 6cdc1131f1f4de668c93dbda6d946428
Cape
Cape
https://www.capesandbox.com/analysis/54997/
  
URLhaus
https://urlhaus.abuse.ch/url/3787467/

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