MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3573aef05e6255e2579fc47d55765871702a351b9d7362a9d855ee92ed28aadb. 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 4 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3573aef05e6255e2579fc47d55765871702a351b9d7362a9d855ee92ed28aadb
SHA3-384 hash: 33c0b84264ce5aa319253384f8cfefcd00f1b910424c149e2e132dd40c01bb4da86b64d880bdb505b5c5d5af01a70e79
SHA1 hash: 3afcf17f346ee961b80c259fcafa5eff2c28bd48
MD5 hash: 7c888de9b393501e4491a88da9ce06f4
humanhash: moon-lithium-fruit-finch
File name:7c888de9b393501e4491a88da9ce06f4
Download: download sample
Signature OrcusRAT
Create hunting rule
File size:81'104 bytes
First seen:2022-01-07 18:12:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 1536:iFI/fbJht+erqcotGnvlyr+CwaMYONe+b3SFu1AFNGaX9cbc:iFI/fbJhtHoIntK+C7VieM3SFZNt9cbc
Threatray 168 similar samples on MalwareBazaar
TLSH T1EE83DFA84FA940EAC493E839A95DC257CF307F0A110486B7B675F984FF1B6D32389616
File icon (PE):PE icon
dhash icon 182b4d5d84f0f0b2 (9 x Formbook, 8 x AgentTesla, 6 x RemcosRAT)
Reporter zbetcheckin
Tags:32 exe OrcusRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
754
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
7c888de9b393501e4491a88da9ce06f4
Verdict:
Malicious activity
Analysis date:
2022-01-07 18:22:24 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7c3c2735-51f3-4693-b35f-d65af4bd4747

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
OrcusRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/217758/
Detection(s):
SecuriteInfo.com.MSIL.Downloadergen8.20259.16372.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
DNS request
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated overlay packed remcos
Link:
https://www.filescan.io/uploads/61d882b21c0d769df9d63ac0/reports/af7115e3-182c-4c0a-a518-1bd950b9b71a/overview
Result
Verdict:
SUSPICIOUS
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/6c5f23f4-7dd6-4937-b094-8b1e27dd93fa
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/916963
Signature
Encrypted powershell cmdline option found
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Sigma detected: Suspicious Encoded PowerShell Command Line
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 549441 Sample: YRpGZ5tqci Startdate: 07/01/2022 Architecture: WINDOWS Score: 60 35 Multi AV Scanner detection for submitted file 2->35 37 Machine Learning detection for sample 2->37 39 Sigma detected: Suspicious Encoded PowerShell Command Line 2->39 7 YRpGZ5tqci.exe 15 3 2->7         started        process3 dnsIp4 33 cdn.discordapp.com 162.159.130.233, 443, 49812 CLOUDFLARENETUS United States 7->33 41 Encrypted powershell cmdline option found 7->41 11 powershell.exe 16 7->11         started        13 powershell.exe 15 7->13         started        15 powershell.exe 15 7->15         started        17 7 other processes 7->17 signatures5 process6 process7 19 conhost.exe 11->19         started        21 conhost.exe 13->21         started        23 conhost.exe 15->23         started        25 conhost.exe 17->25         started        27 conhost.exe 17->27         started        29 conhost.exe 17->29         started        31 4 other processes 17->31
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3573aef05e6255e2579fc47d55765871702a351b9d7362a9d855ee92ed28aadb/
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Create hunting rule
Status:
Malicious
First seen:
2022-01-07 18:13:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
17 of 43 (39.53%)
Threat level:
  5/5
Verdict:
malicious
Similar samples:
0a724325d6c34ee680d393db2ab074eb37c5c9c1cd5985e51382d275d97daa10
OrcusRAT
4e963b9768467dcf18787fe4b197a1b9efe76a2108cdf0f73c6f81407c6dca95
OrcusRAT
50c1c541f9daea24b578ac94fd709b1214207a38cbc2ba3b36b2b0e81d0e4ee1
OrcusRAT
6a95a31549b0ce73fc61664173ebab87da541094d8749894f05c707e543cbe1e
OrcusRAT
966aa9010dcd3fdd35f00b995066013f1a686c4b8364cd5037b5eaed6f1140df
OrcusRAT
b5fa05263e53d8fee01ac12bb9dac350164d9594e0131f58a66baefa6f5ae0c9
OrcusRAT
e467fbf52c4dc6e1b5cd1fa9a60dd230672581884b05381378a0a953d81f533b
OrcusRAT
+ 158 additional samples on MalwareBazaar
Result
Malware family:
orcus
Create hunting rule
Score:
  10/10
Tags:
family:orcus persistence rat spyware stealer
Link:
https://tria.ge/reports/220107-wtq8sscef2/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Orcurs Rat Executable
Orcus
Malware Config
C2 Extraction:
92.240.245.63:10134
Unpacked files
SH256 hash:
3573aef05e6255e2579fc47d55765871702a351b9d7362a9d855ee92ed28aadb
MD5 hash:
7c888de9b393501e4491a88da9ce06f4
SHA1 hash:
3afcf17f346ee961b80c259fcafa5eff2c28bd48
Link:
https://www.unpac.me/results/ef785ede-d22e-4585-95d0-7cca1d816833/
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/3573aef05e6255e2579fc47d55765871702a351b9d7362a9d855ee92ed28aadb

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_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Create hunting rule
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

File information

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

Web download

OrcusRAT

Executable exe 3573aef05e6255e2579fc47d55765871702a351b9d7362a9d855ee92ed28aadb

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1955872/
Cape
Cape
https://www.capesandbox.com/analysis/217758/

Comments


Avatar
zbet commented on 2022-01-07 18:12:45 UTC

url : hxxp://camster.tv/FirefoxInstaller.exe