MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c5c37b03c253c7900b1c810ea10c03f89951d2558743f885ab2d0a8113d7a29f. 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


OrcusRAT


Vendor detections: 10


Intelligence 10 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c5c37b03c253c7900b1c810ea10c03f89951d2558743f885ab2d0a8113d7a29f
SHA3-384 hash: fb078567f75be317c6f5eb3c8ead9c0439054d311cf8f4ac2481ebb7d3e3245b23f22c399e41628c6a4587746c5e8853
SHA1 hash: c565d2a0e0de4f52d08318dc9c8541048989783e
MD5 hash: 0655ad2eaeb288ecf96c4801c02be851
humanhash: red-solar-winner-white
File name:task.dll
Download: download sample
Signature OrcusRAT
Create hunting rule
File size:1'129'592 bytes
First seen:2026-02-12 09:20:19 UTC
Last seen:2026-02-12 10:25:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash c65ed3a99850b1c3dea70f50ea322588 (6 x OrcusRAT)
ssdeep 24576:8yKtT7g4FwxPPATyiq7hvTxNOTMRyqUn9Cin:2T1+aTStTTIqUn9Xn
Threatray 6 similar samples on MalwareBazaar
TLSH T137359E1DADA900BAE077D139CA930546FBB278222720AEDF13D1035D5E67BF57A39318
TrID 48.7% (.EXE) Win64 Executable (generic) (10522/11/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter abuse_ch
Tags:dll exe OrcusRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
99
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Malware family:
orcus
Create hunting rule
ID:
1
File name:
task.dll
Verdict:
Malicious activity
Analysis date:
2026-02-12 09:29:56 UTC
Tags:
etherhiding rat orcus evasion loader arch-doc donutloader
Link:
https://app.any.run/tasks/1c46fa80-9ba9-4713-828c-1b592fac2d11

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/53106/
Detection(s):
SecuriteInfo.com.Win64.MalwareX-gen.29398634.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
84.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=698d9b812afa47e5c6463d6d
Tags:
n/a
Result
Verdict:
Clean
Maliciousness:

Behaviour
Sending a custom TCP request
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c5c37b03c253c7900b1c810ea10c03f89951d2558743f885ab2d0a8113d7a29f
Result
Gathering data
Verdict:
Malicious
File Type:
dll x64
First seen:
2026-02-11T18:29:00Z UTC
Last seen:
2026-02-11T18:55:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/c5c37b03c253c7900b1c810ea10c03f89951d2558743f885ab2d0a8113d7a29f/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/3e133b88-b7a9-479b-9ae1-5131b201c9d7
Result
Threat name:
Orcus
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1868268
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
Benign windows process drops PE files
Changes memory attributes in foreign processes to executable or writable
Creates a thread in another existing process (thread injection)
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sets debug register (to hijack the execution of another thread)
Sigma detected: RunDLL32 Spawning Explorer
Sigma detected: Suspect Svchost Activity
Suricata IDS alerts for network traffic
System process connects to network (likely due to code injection or exploit)
Unusual module load detection (module proxying)
Writes to foreign memory regions
Yara detected Orcus RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1868268 Sample: task.dll.exe Startdate: 12/02/2026 Architecture: WINDOWS Score: 100 82 polygon-rpc.com 2->82 84 ip-api.com 2->84 86 bg.microsoft.map.fastly.net 2->86 110 Suricata IDS alerts for network traffic 2->110 112 Malicious sample detected (through community Yara rule) 2->112 114 Antivirus detection for URL or domain 2->114 116 7 other signatures 2->116 12 loaddll64.exe 1 2->12         started        14 rundll32.exe 2->14         started        signatures3 process4 process5 16 rundll32.exe 1 12->16         started        19 cmd.exe 1 12->19         started        21 rundll32.exe 12->21         started        23 conhost.exe 12->23         started        25 WerFault.exe 14->25         started        signatures6 98 Changes memory attributes in foreign processes to executable or writable 16->98 100 Injects code into the Windows Explorer (explorer.exe) 16->100 102 Writes to foreign memory regions 16->102 27 explorer.exe 40 5 16->27 injected 32 rundll32.exe 19->32         started        104 Allocates memory in foreign processes 21->104 106 Creates a thread in another existing process (thread injection) 21->106 108 Injects a PE file into a foreign processes 21->108 process7 dnsIp8 94 31.172.80.212, 443, 49700, 49701 DE-FIRSTCOLOwwwfirst-colonetDE Germany 27->94 96 polygon-rpc.com 208.65.176.248, 443, 49699, 49702 SHOREHAMTELUS United States 27->96 80 0c9b98e2-2931-4873-adf1-5c5f65e4908b.dll, PE32+ 27->80 dropped 126 System process connects to network (likely due to code injection or exploit) 27->126 128 Benign windows process drops PE files 27->128 130 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 27->130 138 2 other signatures 27->138 34 svchost.exe 12 27->34         started        39 svchost.exe 12 27->39         started        41 svchost.exe 1 12 27->41         started        43 6 other processes 27->43 132 Changes memory attributes in foreign processes to executable or writable 32->132 134 Injects code into the Windows Explorer (explorer.exe) 32->134 136 Writes to foreign memory regions 32->136 140 3 other signatures 32->140 file9 signatures10 process11 dnsIp12 88 ip-api.com 208.95.112.1, 49719, 49720, 49721 TUT-ASUS United States 34->88 74 C:\ProgramData\1htkiy0m.2qk\app.dll, PE32+ 34->74 dropped 118 Sets debug register (to hijack the execution of another thread) 34->118 120 Modifies the context of a thread in another process (thread injection) 34->120 122 Unusual module load detection (module proxying) 34->122 45 rundll32.exe 34->45         started        90 91.92.240.114, 20000, 49752, 49754 THEZONEBG Bulgaria 39->90 76 C:\ProgramData\04csv2ik.e3r\app.dll, PE32+ 39->76 dropped 48 rundll32.exe 39->48         started        78 C:\ProgramData\wzanvuea.qxr\app.dll, PE32+ 41->78 dropped 50 rundll32.exe 41->50         started        92 91.92.240.204, 10000, 49722 THEZONEBG Bulgaria 43->92 124 Installs a global keyboard hook 43->124 file13 signatures14 process15 signatures16 142 Writes to foreign memory regions 45->142 144 Allocates memory in foreign processes 45->144 146 Creates a thread in another existing process (thread injection) 45->146 52 chrome.exe 45->52         started        54 msedge.exe 45->54         started        148 Injects a PE file into a foreign processes 48->148 56 chrome.exe 48->56         started        58 msedge.exe 48->58         started        60 chrome.exe 50->60         started        62 msedge.exe 50->62         started        process17 process18 64 WerFault.exe 52->64         started        66 WerFault.exe 54->66         started        68 WerFault.exe 56->68         started        70 WerFault.exe 58->70         started        72 WerFault.exe 60->72         started       
Score:
29%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/c5c37b03c253c7900b1c810ea10c03f89951d2558743f885ab2d0a8113d7a29f
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c5c37b03c253c7900b1c810ea10c03f89951d2558743f885ab2d0a8113d7a29f/
Verdict:
Malicious
Threat:
Family.ORCUS
Link:
https://tip.neiki.dev/file/c5c37b03c253c7900b1c810ea10c03f89951d2558743f885ab2d0a8113d7a29f
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yxbxwa6ckpdzacy4qehkcdad7cmvdusvq5b7rbnlfufice6xukpq._file
Verdict:
malicious
Label(s):
donutloader
Create hunting rule
Similar samples:
2dc1310a2a0eb9b773d07ff527972aea4b150c3beae2a9cfa3e938cf122b1343
OrcusRAT
2ed1e219132beb9f057dfa6c27c83d094a886331d224215ce597bbb3e3b6f84a
OrcusRAT
46ac2ac73b0d42cacb46b0bdc9f2c359973d3dc2e20afe37576f611ce54550e8
OrcusRAT
4ad9bf9e3c39e377636a2391510f41f562122fad82aebfb18ae7923cfb932c9b
OrcusRAT
c0c5bf845f1f796ca8d8f414206d501c36145d023e99c655567d44bcf96407ab
OrcusRAT
error
OrcusRAT
Result
Malware family:
orcus
Create hunting rule
Score:
  10/10
Tags:
family:donutloader family:orcus discovery loader persistence rat spyware stealer
Link:
https://tria.ge/reports/260212-la4dxae14f/
Behaviour
Modifies registry class
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
cURL User-Agent
Browser Information Discovery
Looks up external IP address via web service
Loads dropped DLL
Downloads MZ/PE file
Orcurs Rat Executable
Detects DonutLoader
DonutLoader
Donutloader family
Orcus
Orcus family
Malware Config
C2 Extraction:
91.92.240.204:10000
Unpacked files
SH256 hash:
c5c37b03c253c7900b1c810ea10c03f89951d2558743f885ab2d0a8113d7a29f
MD5 hash:
0655ad2eaeb288ecf96c4801c02be851
SHA1 hash:
c565d2a0e0de4f52d08318dc9c8541048989783e
Link:
https://www.unpac.me/results/2c3d7e15-8d53-4514-850a-efa9ba970949/
Please note that we are no longer able to provide a coverage score for Virus Total.

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: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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:ReflectiveLoader
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a unspecified hack tool, crack or malware using a reflective loader - no hard match - further investigation recommended
Reference:Internal Research
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

File information

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

Web download

OrcusRAT

Executable exe c5c37b03c253c7900b1c810ea10c03f89951d2558743f885ab2d0a8113d7a29f

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/53106/
  
URLhaus
https://urlhaus.abuse.ch/url/3691003/
  
Delivery method
Distributed via web download

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