MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9657cd9005b01b162ce90306ba1b7c7c3df3551fba5f008efd780086f461e72. 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: 11


Intelligence 11 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b9657cd9005b01b162ce90306ba1b7c7c3df3551fba5f008efd780086f461e72
SHA3-384 hash: 307fb6ca78d671d722fa06e9cb1ade9232b6bb8d465d2ace73bc0d4c99d6cff0e0da15ad36966f4308feba7c5e0d7bce
SHA1 hash: b8f0fb27f7a09316307e440b45638288471d2659
MD5 hash: fd85c676af614c524f6a6ccb49d67e88
humanhash: montana-queen-thirteen-william
File name:fd85c676af614c524f6a6ccb49d67e88.exe
Download: download sample
Signature OrcusRAT
Create hunting rule
File size:1'081'856 bytes
First seen:2020-12-14 20:03:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:vWtIapkocPF7BPE7dG1lFlWcYT70pxnnaaoawplBa2Ley+trZNrI0AilFEvxHvBu:Ldw4MROxnF0ay6rZlI0AilFEvxHiCH6
Threatray 33 similar samples on MalwareBazaar
TLSH E735BE017FADAD06C1BE27B8A6731AC80778EC066092F74F185475AD1CABB02BD513A7
Reporter abuse_ch
Tags:exe OrcusRAT RAT


Avatar
abuse_ch
OrcusRAT C2:
104.248.32.109:22998

Intelligence

File Origin
# of uploads :
1
# of downloads :
1'555
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
fd85c676af614c524f6a6ccb49d67e88.exe
Verdict:
Malicious activity
Analysis date:
2020-12-14 20:11:25 UTC
Tags:
rat orcus
Link:
https://app.any.run/tasks/eeec42d6-f2fc-4309-b38a-10cb77cc7398

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/108040/
Detection(s):
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 Program Files subdirectories
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a file
Sending a UDP request
Setting a keyboard event handler
Creating a window
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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.
Result
Threat name:
Orcus
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/562621
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
Contains functionality to disable the Task Manager (.Net Source)
Detected unpacking (overwrites its own PE header)
Drops PE files with benign system names
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
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Suspicious Csc.exe Source File Folder
Sigma detected: Suspicious Svchost Process
Sigma detected: System File Execution Location Anomaly
System process connects to network (likely due to code injection or exploit)
Yara detected Costura Assembly Loader
Yara detected Orcus RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 330402 Sample: Z5IxzCxz8i.exe Startdate: 14/12/2020 Architecture: WINDOWS Score: 100 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for dropped file 2->47 49 Antivirus / Scanner detection for submitted sample 2->49 51 15 other signatures 2->51 7 Z5IxzCxz8i.exe 18 2->7         started        11 svchost.exe 1 2->11         started        14 svchost.exe 2->14         started        16 5 other processes 2->16 process3 dnsIp4 31 C:\Program Files\Microsoft\svchost.exe, PE32 7->31 dropped 33 C:\Users\user\AppData\...\pl0ehec_.cmdline, UTF-8 7->33 dropped 35 C:\Users\user\AppData\...\Z5IxzCxz8i.exe.log, ASCII 7->35 dropped 37 2 other malicious files 7->37 dropped 57 Detected unpacking (overwrites its own PE header) 7->57 59 Drops PE files with benign system names 7->59 18 svchost.exe 1 2 7->18         started        22 csc.exe 3 7->22         started        41 192.168.2.1 unknown unknown 11->41 43 127.0.0.1 unknown unknown 14->43 file5 signatures6 process7 dnsIp8 39 104.248.32.109, 22998, 49730, 49731 DIGITALOCEAN-ASNUS United States 18->39 53 System process connects to network (likely due to code injection or exploit) 18->53 55 Installs a global keyboard hook 18->55 29 C:\Users\user\AppData\Local\...\pl0ehec_.dll, PE32 22->29 dropped 25 conhost.exe 22->25         started        27 cvtres.exe 1 22->27         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b9657cd9005b01b162ce90306ba1b7c7c3df3551fba5f008efd780086f461e72/
Threat name:
ByteCode-MSIL.Trojan.Sorcurat
Create hunting rule
Status:
Malicious
First seen:
2020-12-14 05:59:17 UTC
AV detection:
25 of 28 (89.29%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xfsxzwialma3cywosaygxinxy7b56nkr7os7achp26aaq32gdzza._file
Verdict:
malicious
Similar samples:
05bb212dd186eaa7c2fa17ad094fd56f55fa203f488f1e150532aa23c86c9bf8
OrcusRAT
0a724325d6c34ee680d393db2ab074eb37c5c9c1cd5985e51382d275d97daa10
OrcusRAT
4e963b9768467dcf18787fe4b197a1b9efe76a2108cdf0f73c6f81407c6dca95
OrcusRAT
53e4f5df0428b043d69593a2875bace25b99e5f2b9f7fc7630a4f8ef5b75251f
OrcusRAT
74d6d0213855d53e4edad91ee620009558a9df2f6f925be9e81ba54df4b3b11d
OrcusRAT
85b315f053164c0910b88178383f3271d8faef791d4cb35442f246c91bd80225
OrcusRAT
8a80a506f1a921b1af4b1b3fd6d37737622a3fd75e10efb44da9956b590cd185
OrcusRAT
966aa9010dcd3fdd35f00b995066013f1a686c4b8364cd5037b5eaed6f1140df
OrcusRAT
9efca9fb9aadcdec3f3e23fda67899c67dda0d7178636a5691e15d6b62e01649
OrcusRAT
e199b52c6e53f641ac035a22bc75963d32bfb70dfb8a64a2cbf7d3efc9c1358a
OrcusRAT
+ 23 additional samples on MalwareBazaar
Result
Malware family:
orcus
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:orcus keylogger persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/201214-g55wr3fa8s/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Drops file in Windows directory
Adds Run key to start application
JavaScript code in executable
Drops desktop.ini file(s)
Executes dropped EXE
AgentTesla Payload
AgentTesla
Orcus
Orcus Main Payload
Unpacked files
SH256 hash:
b9657cd9005b01b162ce90306ba1b7c7c3df3551fba5f008efd780086f461e72
MD5 hash:
fd85c676af614c524f6a6ccb49d67e88
SHA1 hash:
b8f0fb27f7a09316307e440b45638288471d2659
Link:
https://www.unpac.me/results/13b11902-b56e-4979-a9ed-c701487b58b2/
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/b9657cd9005b01b162ce90306ba1b7c7c3df3551fba5f008efd780086f461e72

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:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:MAL_BackNet_Nov18_1
Create hunting rule
Author:Florian Roth
Description:Detects BackNet samples
Reference:https://github.com/valsov/BackNet
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo

File information

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

Web download

OrcusRAT

Executable exe b9657cd9005b01b162ce90306ba1b7c7c3df3551fba5f008efd780086f461e72

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/917419/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/108040/

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