MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7aa6ba1ed3e72514eac19d8b9ee4f95a17e33b63159bc75bd57ad8b38ce6361e. 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


XpertRAT


Vendor detections: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7aa6ba1ed3e72514eac19d8b9ee4f95a17e33b63159bc75bd57ad8b38ce6361e
SHA3-384 hash: 5184b86877afa33f66ede6f8b0f61f907a16288e135bfb15f7603413800988b267265fe8611f0e60f293630531d54350
SHA1 hash: 5faee553c8dc1cc0492d7b8b78329ac56100c040
MD5 hash: 40e678e7d38a1541c06d16895d75f856
humanhash: louisiana-two-sad-massachusetts
File name:40e678e7d38a1541c06d16895d75f856.exe
Download: download sample
Signature XpertRAT
Create hunting rule
File size:792'576 bytes
First seen:2021-04-21 13:35:05 UTC
Last seen:2021-04-21 15:00:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'604 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:xF1KNlx7/sqDV5d79cgCDeaLCts7pDEH89:xrQx7/TDVv3CDeaL6s7OHw
TLSH D3F4239137E88B26CA9E4BB8061223023BB4BF6F1122E21D6E4671CF5D7B7453751B63
Reporter abuse_ch
Tags:exe RAT XpertRAT


Avatar
abuse_ch
XpertRAT C2:
kapasky-antivirus.firewall-gateway.net

Intelligence

File Origin
# of uploads :
2
# of downloads :
121
Origin country :
n/a
Vendor Threat Intelligence
Detection:
XpertRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/142137/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.26573.22560.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Launching a process
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
DNS request
Connection attempt
Unauthorized injection to a recently created process
Blocking the User Account Control
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun
Result
Verdict:
UNKNOWN
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:
XpertRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/691040
Signature
Allocates memory in foreign processes
Changes security center settings (notifications, updates, antivirus, firewall)
Connects to many ports of the same IP (likely port scanning)
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Detected unpacking (creates a PE file in dynamic memory)
Disables user account control notifications
Injects a PE file into a foreign processes
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Generic Dropper
Yara detected XpertRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 394457 Sample: 16j7nmOOPS.exe Startdate: 21/04/2021 Architecture: WINDOWS Score: 100 45 kapasky-antivirus.firewall-gateway.net 2->45 53 Malicious sample detected (through community Yara rule) 2->53 55 Multi AV Scanner detection for submitted file 2->55 57 Yara detected XpertRAT 2->57 59 5 other signatures 2->59 9 16j7nmOOPS.exe 3 2->9         started        13 U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7.exe 3 2->13         started        15 U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7.exe 2 2->15         started        17 U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7.exe 2 2->17         started        signatures3 process4 file5 39 C:\Users\user\AppData\...\16j7nmOOPS.exe.log, ASCII 9->39 dropped 69 Detected unpacking (creates a PE file in dynamic memory) 9->69 71 Injects a PE file into a foreign processes 9->71 19 16j7nmOOPS.exe 1 1 9->19         started        73 Multi AV Scanner detection for dropped file 13->73 75 Machine Learning detection for dropped file 13->75 22 U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7.exe 1 13->22         started        24 U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7.exe 1 15->24         started        26 U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7.exe 1 17->26         started        28 U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7.exe 17->28         started        signatures6 process7 signatures8 61 Changes security center settings (notifications, updates, antivirus, firewall) 19->61 63 Disables user account control notifications 19->63 65 Writes to foreign memory regions 19->65 67 2 other signatures 19->67 30 iexplore.exe 3 7 19->30         started        35 iexplore.exe 19->35         started        process9 dnsIp10 47 kapasky-antivirus.firewall-gateway.net 45.154.4.64, 2054, 4000 COMBAHTONcombahtonGmbHDE Netherlands 30->47 41 U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7.exe, PE32 30->41 dropped 43 C:\...\U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7, data 30->43 dropped 49 Creates an undocumented autostart registry key 30->49 51 Creates autostart registry keys with suspicious names 30->51 37 WerFault.exe 35->37         started        file11 signatures12 process13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7aa6ba1ed3e72514eac19d8b9ee4f95a17e33b63159bc75bd57ad8b38ce6361e/
Threat name:
Win32.PUA.Wacapew
Create hunting rule
Status:
Malicious
First seen:
2021-04-21 13:36:30 UTC
AV detection:
17 of 29 (58.62%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pktluhwt44srj2wbtwfz5zhzlil6go3dcwn4ow6vplmlhdhggypa._file
Verdict:
unknown
Result
Malware family:
xpertrat
Create hunting rule
Score:
  10/10
Tags:
family:xpertrat evasion persistence rat trojan
Link:
https://tria.ge/reports/210421-egpecxpjea/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System policy modification
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Windows security modification
Adds policy Run key to start application
UAC bypass
Windows security bypass
XpertRAT
XpertRAT Core Payload
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/7aa6ba1ed3e72514eac19d8b9ee4f95a17e33b63159bc75bd57ad8b38ce6361e

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:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:MALWARE_Win_XpertRAT
Create hunting rule
Author:ditekSHen
Description:XpertRAT payload
Rule name:win_xpertrat_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Web download

XpertRAT

Executable exe 7aa6ba1ed3e72514eac19d8b9ee4f95a17e33b63159bc75bd57ad8b38ce6361e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1143865/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/142137/

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