MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 78b898d8c0c3d4f01b36507c63d69892574c6c5a9e002a957721cdd703d31796. 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: 12


Intelligence 12 IOCs 1 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 78b898d8c0c3d4f01b36507c63d69892574c6c5a9e002a957721cdd703d31796
SHA3-384 hash: ecf6a9b76c21781d067088f9e9612dcd54121cc0deaf9efabec11fadc87446b59961309cca33736acfa46695ddc9f3b8
SHA1 hash: bd3398225e6a55c61595ada15d7c44cf72ac0ce0
MD5 hash: 76f99ba1ba37dacb01e61a67131f727c
humanhash: oregon-sad-aspen-butter
File name:76f99ba1ba37dacb01e61a67131f727c.exe
Download: download sample
Signature OrcusRAT
Create hunting rule
File size:941'056 bytes
First seen:2021-08-31 08:22:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:Ygg4MROxnFH3mkTZkrZlI0AilFEvxHiCM:YgDMihWrZlI0AilFEvxHi
Threatray 75 similar samples on MalwareBazaar
TLSH T13115BF013FACBD0BC1BF26B8B2B31AC907B8E90A6452FB4E185851AD1D9F701BD55367
Reporter abuse_ch
Tags:exe OrcusRAT RAT

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
61.69.245.176:42069 https://threatfox.abuse.ch/ioc/203865/

Intelligence

File Origin
# of uploads :
1
# of downloads :
866
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
76f99ba1ba37dacb01e61a67131f727c.exe
Verdict:
Malicious activity
Analysis date:
2021-08-31 08:24:19 UTC
Tags:
rat orcus trojan
Link:
https://app.any.run/tasks/a0d81aa9-8eeb-4d0c-86b2-eb70d50f3ea0

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/184066/
Detection(s):
Win.Packed.Passwordstealera-9752380-0
Create hunting rule

Win.Packed.Passwordstealera-9803747-0
Create hunting rule

Win.Packed.Generic-9805849-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file in the Windows subdirectories
Creating a process from a recently created file
Creating a service
Creating a file
Launching a service
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
DNS request
Setting a keyboard event handler
Creating a window
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Sending a UDP request
Unauthorized injection to a recently created process
Enabling autorun for a service
Enabling autorun
Enabling autorun by creating a file
Malware family:
Orcus RAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/70f8ed0e-4e0f-4c73-aca3-a8c6fa8cd9a8
Result
Threat name:
Orcus
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/842452
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Changes security center settings (notifications, updates, antivirus, firewall)
Connects to many ports of the same IP (likely port scanning)
Contains functionality to disable the Task Manager (.Net Source)
Creates an undocumented autostart registry key
Drops executables to the windows directory (C:\Windows) and starts them
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Sigma detected: Suspicious Csc.exe Source File Folder
Uses dynamic DNS services
Yara detected Costura Assembly Loader
Yara detected Orcus RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 474879 Sample: X6ljOJLLDo.exe Startdate: 31/08/2021 Architecture: WINDOWS Score: 100 61 Malicious sample detected (through community Yara rule) 2->61 63 Antivirus detection for dropped file 2->63 65 Antivirus / Scanner detection for submitted sample 2->65 67 12 other signatures 2->67 8 X6ljOJLLDo.exe 20 2->8         started        12 svchost.exe 2->12         started        14 svchost.exe 9 1 2->14         started        17 11 other processes 2->17 process3 dnsIp4 47 C:\Windows\SysWOW64\WindowsInput.exe, PE32 8->47 dropped 49 C:\Users\user\AppData\Roaming\...49et.exe, PE32 8->49 dropped 51 C:\Windows\SysWOW64\WindowsInput.exe.config, XML 8->51 dropped 53 4 other malicious files 8->53 dropped 77 Drops executables to the windows directory (C:\Windows) and starts them 8->77 19 Net.exe 1 5 8->19         started        24 WindowsInput.exe 2 4 8->24         started        26 csc.exe 3 8->26         started        79 Changes security center settings (notifications, updates, antivirus, firewall) 12->79 28 MpCmdRun.exe 12->28         started        57 127.0.0.1 unknown unknown 14->57 59 192.168.2.1 unknown unknown 17->59 file5 signatures6 process7 dnsIp8 55 texeshserver.ddns.net 61.69.245.176, 42069, 49712, 49719 TPG-INTERNET-APTPGTelecomLimitedAU Australia 19->55 41 C:\Users\user\AppData\...\_Net_Framework.exe, PE32 19->41 dropped 43 C:\Users\user\...\_Net_Framework.exe.config, XML 19->43 dropped 69 Antivirus detection for dropped file 19->69 71 Multi AV Scanner detection for dropped file 19->71 73 Protects its processes via BreakOnTermination flag 19->73 75 3 other signatures 19->75 30 _Net_Framework.exe 19->30         started        45 C:\Users\user\AppData\Local\...\3a6ryzkd.dll, PE32 26->45 dropped 33 conhost.exe 26->33         started        35 cvtres.exe 1 26->35         started        37 conhost.exe 28->37         started        file9 signatures10 process11 signatures12 81 Antivirus detection for dropped file 30->81 83 Multi AV Scanner detection for dropped file 30->83 39 _Net_Framework.exe 30->39         started        process13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/78b898d8c0c3d4f01b36507c63d69892574c6c5a9e002a957721cdd703d31796/
Threat name:
ByteCode-MSIL.Trojan.Orcusrat
Create hunting rule
Status:
Malicious
First seen:
2021-08-29 12:50:21 UTC
AV detection:
26 of 28 (92.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pc4jrwgaypkpagzwkb6ghvuysjluy3c2tyacvflxehg5oa6tc6la._file
Verdict:
malicious
Similar samples:
0c3a1e4598b32bfcdf0226964c07af858c56e22c112fc4719f833738733958b8
OrcusRAT
3e4ef7b0224b4601e28838ec6319634315025d824c1404a2a9e114139dbdbe21
OrcusRAT
4e963b9768467dcf18787fe4b197a1b9efe76a2108cdf0f73c6f81407c6dca95
OrcusRAT
53ae916a34b6c3efcc82000236ebb36bb175584319211f1f6c2f612f2b0b4472
OrcusRAT
74d6d0213855d53e4edad91ee620009558a9df2f6f925be9e81ba54df4b3b11d
OrcusRAT
862d18c8f4e84350761fcf176e144b73b90667cc64fe62f0e0b40e97f02125ae
OrcusRAT
b5fa05263e53d8fee01ac12bb9dac350164d9594e0131f58a66baefa6f5ae0c9
OrcusRAT
f7e7dfe0a2e59a746679694100b4549408a7e5513d3b1cf4bee0ba981f5e1703
OrcusRAT
f95e19a66cb1e3a612f2c07380376196e856dfefbe1038c4e6fd7d6a03388b5d
OrcusRAT
+ 65 additional samples on MalwareBazaar
Result
Malware family:
orcus
Create hunting rule
Score:
  10/10
Tags:
family:orcus rat spyware stealer
Link:
https://tria.ge/reports/210831-v4kntzvaaj/
Behaviour
Runs net.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Drops file in System32 directory
Drops desktop.ini file(s)
Loads dropped DLL
Executes dropped EXE
Orcurs Rat Executable
Orcus
Orcus Main Payload
Malware Config
C2 Extraction:
texeshserver.ddns.net:42069
Unpacked files
SH256 hash:
78b898d8c0c3d4f01b36507c63d69892574c6c5a9e002a957721cdd703d31796
MD5 hash:
76f99ba1ba37dacb01e61a67131f727c
SHA1 hash:
bd3398225e6a55c61595ada15d7c44cf72ac0ce0
Link:
https://www.unpac.me/results/159eea93-dd0b-44ed-9cf7-a4774732f12a/
Malware family:
OrcusRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/78b898d8c0c3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/78b898d8c0c3d4f01b36507c63d69892574c6c5a9e002a957721cdd703d31796

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:INDICATOR_EXE_Packed_Fody
Create hunting rule
Author:ditekSHen
Description:Detects executables manipulated with Fody
Rule name:INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Author:ditekSHen
Description:Detects executables containing common artifcats observed in infostealers
Rule name:MAL_BackNet_Nov18_1
Create hunting rule
Author:Florian Roth
Description:Detects BackNet samples
Reference:https://github.com/valsov/BackNet
Rule name:pe_imphash
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/184066/

Comments