MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3641770670faf667b289df978513c46c31b2074cd5504cbd73dccc510e394ace. 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: 16


Intelligence 16 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3641770670faf667b289df978513c46c31b2074cd5504cbd73dccc510e394ace
SHA3-384 hash: a9f53cdd88d0580182829496907566f9605c772f28d5e7ea31cada0652a689d454cf30a86269ca4f4d1d2fd25e4eea1a
SHA1 hash: 7ca280a1dc7102c3f371b748b8e9b6a13cf09b29
MD5 hash: 00535440a40587b5b08ba0b98dfeb4b3
humanhash: butter-fourteen-romeo-maine
File name:Orcuido.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:3'266'048 bytes
First seen:2023-03-30 01:08:16 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:DvCI22SsaNYfdPBldt698dBcjHqxDE/Avk/JxPoGdIfhTHHB72eh2NT:DvP22SsaNYfdPBldt6+dBcjHqxQNi
TLSH T1AAE55B143BF85F23E1BBE27395B0041667F0EC2AB3A3EB1B5191677E1C53B5058426AB
TrID 53.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
12.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
9.5% (.SCR) Windows screen saver (13097/50/3)
7.6% (.EXE) Win64 Executable (generic) (10523/12/4)
4.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Reporter Chainskilabs
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
451
Origin country :
US US
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
Orcuido.exe
Verdict:
Malicious activity
Analysis date:
2023-03-29 16:35:34 UTC
Tags:
asyncrat quasar
Link:
https://app.any.run/tasks/391933a5-7902-424a-af53-889ea793c291

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
QuasarStealer
Create hunting rule
Link:
https://www.capesandbox.com/analysis/378642/
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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Launching a process
Setting a keyboard event handler
DNS request
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Creating a file
Sending a custom TCP request
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
86%
Tags:
anti-vm keylogger quasarrat rat stealer
Link:
https://www.filescan.io/uploads/6424e12fca865a884348d615/reports/024faefc-e1b4-4194-a382-dad2557831e7/overview
Verdict:
Malicious
Labled as:
Trojan.MSIL.Quasar
Link:
https://www.hybrid-analysis.com/sample/3641770670faf667b289df978513c46c31b2074cd5504cbd73dccc510e394ace
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ec766fdc-e792-420a-a810-3171b581bde3
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1204810
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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: 837726 Sample: Orcuido.exe Startdate: 30/03/2023 Architecture: WINDOWS Score: 100 92 Rares14023-51676.portmap.host 2->92 110 Malicious sample detected (through community Yara rule) 2->110 112 Antivirus / Scanner detection for submitted sample 2->112 114 Multi AV Scanner detection for submitted file 2->114 116 4 other signatures 2->116 15 Orcuido.exe 5 2->15         started        signatures3 process4 dnsIp5 102 Rares14023-51676.portmap.host 15->102 90 C:\Users\user\AppData\...\Orcuido.exe.log, CSV 15->90 dropped 104 Uses schtasks.exe or at.exe to add and modify task schedules 15->104 106 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->106 108 Installs a global keyboard hook 15->108 20 cmd.exe 1 15->20         started        23 schtasks.exe 1 15->23         started        file6 signatures7 process8 signatures9 118 Uses ping.exe to sleep 20->118 120 Uses ping.exe to check the status of other devices and networks 20->120 25 Orcuido.exe 4 20->25         started        29 conhost.exe 20->29         started        31 PING.EXE 1 20->31         started        33 chcp.com 1 20->33         started        35 conhost.exe 23->35         started        process10 dnsIp11 94 Rares14023-51676.portmap.host 25->94 128 Hides that the sample has been downloaded from the Internet (zone.identifier) 25->128 130 Installs a global keyboard hook 25->130 37 cmd.exe 1 25->37         started        40 schtasks.exe 1 25->40         started        signatures12 process13 signatures14 122 Uses ping.exe to sleep 37->122 42 Orcuido.exe 4 37->42         started        46 conhost.exe 37->46         started        48 PING.EXE 1 37->48         started        50 chcp.com 1 37->50         started        52 conhost.exe 40->52         started        process15 dnsIp16 96 Rares14023-51676.portmap.host 42->96 132 Hides that the sample has been downloaded from the Internet (zone.identifier) 42->132 134 Installs a global keyboard hook 42->134 54 cmd.exe 1 42->54         started        57 schtasks.exe 1 42->57         started        signatures17 process18 signatures19 124 Uses ping.exe to sleep 54->124 59 Orcuido.exe 4 54->59         started        63 conhost.exe 54->63         started        65 PING.EXE 1 54->65         started        67 chcp.com 1 54->67         started        69 conhost.exe 57->69         started        process20 dnsIp21 98 Rares14023-51676.portmap.host 59->98 136 Hides that the sample has been downloaded from the Internet (zone.identifier) 59->136 138 Installs a global keyboard hook 59->138 71 cmd.exe 59->71         started        74 schtasks.exe 59->74         started        signatures22 process23 signatures24 126 Uses ping.exe to sleep 71->126 76 Orcuido.exe 71->76         started        80 conhost.exe 71->80         started        82 chcp.com 71->82         started        84 PING.EXE 71->84         started        86 conhost.exe 74->86         started        process25 dnsIp26 100 Rares14023-51676.portmap.host 76->100 140 Hides that the sample has been downloaded from the Internet (zone.identifier) 76->140 142 Installs a global keyboard hook 76->142 88 schtasks.exe 76->88         started        signatures27 process28
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3641770670faf667b289df978513c46c31b2074cd5504cbd73dccc510e394ace/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2023-03-30 01:09:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gzaxobtq7l3gpmuj36lyke6enqy3eb2m2viezplt3tgfcdrzjlha._file
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:orcus spyware trojan
Link:
https://tria.ge/reports/230330-bhsl9sae52/
Behaviour
Creates scheduled task(s)
Runs ping.exe
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Checks computer location settings
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
Rares14023-51676.portmap.host:51676
Unpacked files
SH256 hash:
3641770670faf667b289df978513c46c31b2074cd5504cbd73dccc510e394ace
MD5 hash:
00535440a40587b5b08ba0b98dfeb4b3
SHA1 hash:
7ca280a1dc7102c3f371b748b8e9b6a13cf09b29
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/d68e7d6c-3742-4572-bc69-f488cb0a32f9/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3641770670fa/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/3641770670faf667b289df978513c46c31b2074cd5504cbd73dccc510e394ace

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: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 artifcats 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
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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

anyrun
any.run
https://app.any.run/tasks/b1f49a45-2707-45e6-a506-315bd9c5333e/
Cape
Cape
https://www.capesandbox.com/analysis/378642/

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