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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 587dbf7f25e6078a552505be43c9013c5be3ce454ecc5c64edd5a3598325aebf. 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


WSHRAT


Vendor detections: 14


Intelligence 14 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 587dbf7f25e6078a552505be43c9013c5be3ce454ecc5c64edd5a3598325aebf
SHA3-384 hash: 93706c1d8601c399877285f09e799fecfeec1c4107fcca85a2b75c8bc14c4f49ac1f7e4724d12401f2becd072901b3e9
SHA1 hash: 847986dce6acc5da7c5bab853ab9317035114024
MD5 hash: 24970aab6d2f2388a1bb986fbc16f56b
humanhash: papa-london-michigan-lake
File name:24970aab6d2f2388a1bb986fbc16f56b.exe
Download: download sample
Signature WSHRAT
Create hunting rule
File size:460'474 bytes
First seen:2023-03-31 00:25:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 744 x AgentTesla, 443 x GuLoader)
ssdeep 12288:vYxDYzoG3JGoShnxu5uwo3HzZkniGBZwzm0CK2F:vYxd4S9xufezZhGBZwzm9P
TLSH T152A4225433A9D073E6DB0A31653B435537D39F2610AC9F8D43F56FAD78A2A52C60E322
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe RAT wshrat


Avatar
abuse_ch
WSHRAT C2:
185.29.9.30:3369

Intelligence

File Origin
# of uploads :
1
# of downloads :
296
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
wshrat
Create hunting rule
ID:
1
File name:
24970aab6d2f2388a1bb986fbc16f56b.exe
Verdict:
Malicious activity
Analysis date:
2023-03-31 00:28:21 UTC
Tags:
evasion wshrat
Link:
https://app.any.run/tasks/26275bdb-e5cd-4000-af54-3cf7753b4451

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/378949/
Detection(s):
Sanesecurity.Malware.28885.BadCo.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Creating a file in the %AppData% directory
Сreating synchronization primitives
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Using the Windows Management Instrumentation requests
Enabling the 'hidden' option for recently created files
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Creating a file in the mass storage device
Query of malicious DNS domain
Enabling autorun by creating a file
Enabling threat expansion on mass storage devices
Sending an HTTP POST request to an infection source
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/75813/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
comodo formbook nemesis overlay packed remcos shell32.dll
Link:
https://www.filescan.io/uploads/6426289b84fe7631c3030648/reports/76542079-a01e-49f4-a714-47d9c3c8a746/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/587dbf7f25e6078a552505be43c9013c5be3ce454ecc5c64edd5a3598325aebf
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fa0dffdc-1955-4eed-83ca-41ec14cfcb5b
Result
Threat name:
WSHRAT
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1205598
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Drops VBS files to the startup folder
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Machine Learning detection for sample
Maps a DLL or memory area into another process
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Potential evasive VBS script found (sleep loop)
Potential malicious VBS script found (has network functionality)
Potential malicious VBS script found (suspicious strings)
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Sigma detected: Drops script at startup location
Sigma detected: Register Wscript In Run Key
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Uses dynamic DNS services
Uses known network protocols on non-standard ports
Windows Shell Script Host drops VBS files
Wscript called in batch mode (surpress errors)
Yara detected WSHRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 838509 Sample: BXlbuKmRDg.exe Startdate: 31/03/2023 Architecture: WINDOWS Score: 100 43 Sigma detected: Register Wscript In Run Key 2->43 45 Snort IDS alert for network traffic 2->45 47 Multi AV Scanner detection for domain / URL 2->47 49 9 other signatures 2->49 8 BXlbuKmRDg.exe 19 2->8         started        11 wscript.exe 2->11         started        14 wscript.exe 1 2->14         started        16 2 other processes 2->16 process3 file4 35 C:\Users\user\AppData\Local\...\dgscfpj.exe, PE32 8->35 dropped 18 dgscfpj.exe 8->18         started        59 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 11->59 61 Wscript called in batch mode (surpress errors) 11->61 21 wscript.exe 14->21         started        signatures5 process6 signatures7 51 Multi AV Scanner detection for dropped file 18->51 53 Detected unpacking (changes PE section rights) 18->53 55 Detected unpacking (overwrites its own PE header) 18->55 57 5 other signatures 18->57 23 dgscfpj.exe 2 18->23         started        process8 file9 33 C:\Users\user\AppData\Roaming\CcxGQ.vbs, assembler 23->33 dropped 26 wscript.exe 3 15 23->26         started        31 WerFault.exe 24 9 23->31         started        process10 dnsIp11 39 snkcyp.duckdns.org 185.29.9.30, 3369, 49699, 49706 DATACLUB-SE European Union 26->39 41 ip-api.com 208.95.112.1, 49698, 80 TUT-ASUS United States 26->41 37 C:\Users\user\AppData\Roaming\...\CcxGQ.vbs, assembler 26->37 dropped 63 System process connects to network (likely due to code injection or exploit) 26->63 65 Potential malicious VBS script found (suspicious strings) 26->65 67 Potential malicious VBS script found (has network functionality) 26->67 69 5 other signatures 26->69 file12 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/587dbf7f25e6078a552505be43c9013c5be3ce454ecc5c64edd5a3598325aebf/
Threat name:
Win32.Worm.Jenxcus
Create hunting rule
Status:
Malicious
First seen:
2023-03-28 15:41:55 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lb6367zf4ydyuvjfaw7ehsibhrn6htsfj3gfyzhn2wrvtazfv27q._file
Verdict:
malicious
Result
Malware family:
wshrat
Create hunting rule
Score:
  10/10
Tags:
family:wshrat persistence trojan
Link:
https://tria.ge/reports/230331-aq69ysga23/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
WSHRAT
WSHRAT payload
Malware Config
C2 Extraction:
http://snkcyp.duckdns.org:3369
Unpacked files
SH256 hash:
65108574ced9c109aef12e2b91d5a1519e5bc451740125cd1aaac4b018bc2f01
MD5 hash:
9e6ea6d4822bd04f8e051a1cabb7bcca
SHA1 hash:
d5e3b2f70e9523371bb1fcc671088e58b08221be
Link:
https://www.unpac.me/results/ec93e0e8-59e6-439e-9dcd-2e6df294165b/
SH256 hash:
991484676f5f42a75b1d688d90fb9f2f3bcf1233b78d9ed132dd059b1e02108d
MD5 hash:
c1cc74bb0ab7759ec5d300fc2ee8a622
SHA1 hash:
081e307402f3c489de124600406e873b23c29444
Link:
https://www.unpac.me/results/ec93e0e8-59e6-439e-9dcd-2e6df294165b/
SH256 hash:
0d81cab9f7ca5ac7c201c4917dfc7beee2ea6ea5fd9f0b23e7b088f084cda92c
MD5 hash:
cfcfb003ef2e911bab5915217beb2e6f
SHA1 hash:
c623bbdd0d4e34c9a4229fa5c29293e56c1f61c9
Link:
https://www.unpac.me/results/ec93e0e8-59e6-439e-9dcd-2e6df294165b/
SH256 hash:
587dbf7f25e6078a552505be43c9013c5be3ce454ecc5c64edd5a3598325aebf
MD5 hash:
24970aab6d2f2388a1bb986fbc16f56b
SHA1 hash:
847986dce6acc5da7c5bab853ab9317035114024
Link:
https://www.unpac.me/results/ec93e0e8-59e6-439e-9dcd-2e6df294165b/
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/587dbf7f25e6078a552505be43c9013c5be3ce454ecc5c64edd5a3598325aebf

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
Create hunting rule
Author:ditekSHen
Description:Detects executables containing base64 encoded User Agent
Rule name:pe_imphash
Create hunting rule
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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/378949/

Comments