MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 293bf5eeec6d5d30ee3b3d26f73d6cb81f4e080a449774fc8d2c3a724454f521. 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: 7


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

SHA256 hash: 293bf5eeec6d5d30ee3b3d26f73d6cb81f4e080a449774fc8d2c3a724454f521
SHA3-384 hash: 0312998dba18dde3faa980fb028f192490301c6908b431c080d35883e471cbd2d27881d039fa7dad92652d4a04e320ba
SHA1 hash: ebc70668346f27b9c31759b335c3f6cb619c71b5
MD5 hash: b93e8fe38d0df20ba517b9d531660a4e
humanhash: uncle-spaghetti-arizona-crazy
File name:Specification 788919754.pdf img ind.exe
Download: download sample
Signature XpertRAT
Create hunting rule
File size:421'376 bytes
First seen:2020-08-17 18:55:01 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 12288:PzQ4EcmZHAFaxmVmie9bngPDwOVw52HeuBfnJvM6r5qDg/U:04EcmZHAFaxmVmie9bngPDwOVDfJv
Threatray 528 similar samples on MalwareBazaar
TLSH 15946A5A38D0E3DED1E54FB948149C1627FA2F2E0616A90FCC6B39D763E8BC1BD24056
Reporter abuse_ch
Tags:exe Hostwinds RAT XpertRAT


Avatar
abuse_ch
Malspam distributing XpertRAT:

HELO: hwsrv-762234.hostwindsdns.com
Sending IP: 104.168.219.213
From: PROCUREMENT <procurement@powersolutionrne.com>
Subject: RFQ: QUOTATION REQUEST 2776865
Attachment: RFQ_PO_5638828111.zip (contains "Specification 788919754.pdf img ind.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
85
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/47298/
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
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
Connection attempt to an infection source
Enabling autorun
Result
Threat name:
XpertRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/434664
Signature
Changes security center settings (notifications, updates, antivirus, firewall)
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Detected unpacking (creates a PE file in dynamic memory)
Disables UAC (registry)
Disables user account control notifications
Initial sample is a PE file and has a suspicious name
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)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses an obfuscated file name to hide its real file extension (a lot of spaces)
Yara detected AntiVM_3
Yara detected Generic Dropper
Yara detected XpertRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 269705 Sample: Specification 788919754.pdf... Startdate: 18/08/2020 Architecture: WINDOWS Score: 100 49 sandshoe.myfirewall.org 2->49 53 Malicious sample detected (through community Yara rule) 2->53 55 Detected unpacking (creates a PE file in dynamic memory) 2->55 57 Yara detected XpertRAT 2->57 59 6 other signatures 2->59 9 Specification 788919754.pdf                                   img ind.exe 3 2->9         started        13 F4S7P6J0-V116-K8H5-A6F1-U1L8V8A4B6R5.exe 3 2->13         started        15 F4S7P6J0-V116-K8H5-A6F1-U1L8V8A4B6R5.exe 2 2->15         started        17 F4S7P6J0-V116-K8H5-A6F1-U1L8V8A4B6R5.exe 2 2->17         started        signatures3 process4 file5 47 Specification 7889...    img ind.exe.log, ASCII 9->47 dropped 71 Injects a PE file into a foreign processes 9->71 19 Specification 788919754.pdf                                   img ind.exe 1 1 9->19         started        73 Machine Learning detection for dropped file 13->73 22 F4S7P6J0-V116-K8H5-A6F1-U1L8V8A4B6R5.exe 1 13->22         started        24 F4S7P6J0-V116-K8H5-A6F1-U1L8V8A4B6R5.exe 13->24         started        26 F4S7P6J0-V116-K8H5-A6F1-U1L8V8A4B6R5.exe 13->26         started        28 F4S7P6J0-V116-K8H5-A6F1-U1L8V8A4B6R5.exe 1 15->28         started        30 F4S7P6J0-V116-K8H5-A6F1-U1L8V8A4B6R5.exe 15->30         started        32 F4S7P6J0-V116-K8H5-A6F1-U1L8V8A4B6R5.exe 1 17->32         started        signatures6 process7 signatures8 61 Changes security center settings (notifications, updates, antivirus, firewall) 19->61 63 Disables user account control notifications 19->63 65 Disables UAC (registry) 19->65 34 iexplore.exe 3 7 19->34         started        39 iexplore.exe 19->39         started        process9 dnsIp10 51 sandshoe.myfirewall.org 79.134.225.85, 4000, 49713, 49714 FINK-TELECOM-SERVICESCH Switzerland 34->51 43 F4S7P6J0-V116-K8H5-A6F1-U1L8V8A4B6R5.exe, PE32 34->43 dropped 45 C:\...\F4S7P6J0-V116-K8H5-A6F1-U1L8V8A4B6R5, data 34->45 dropped 67 Creates an undocumented autostart registry key 34->67 69 Creates autostart registry keys with suspicious names 34->69 41 WerFault.exe 39->41         started        file11 signatures12 process13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/293bf5eeec6d5d30ee3b3d26f73d6cb81f4e080a449774fc8d2c3a724454f521/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2020-08-17 07:15:05 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=fe57l3xmnvotb3r3hutpoplmxapu4cakislxj7enfq5hercu6uqq._file
Verdict:
malicious
Similar samples:
25f0420d3551985569fb57497301c7d2f691083d7318d28db5bab2e8a6a0bb85
XpertRAT
26d61d43d05dddf996e499f7bda123770b11f7ba3dcf1f2cb9cd27e507778b78
XpertRAT
363755d7a78e52ae1314c7c4a485048269a9680e93bc4cb82098ca6139bfd912
XpertRAT
5a979bc05628a8a31ba4e8b2a476b2741ff53c278e0b6eb14a179486e26ee8e8
XpertRAT
5bd645a7783a25d2caa48ee448ad1e47c00ae25e5a7fd9b304ad9422e9e79fd5
XpertRAT
6ad1ca30615fb9469d7b0d254d14964f4dabf786f2f9096d77c0e2e5dbf600b9
XpertRAT
a01d4a1b86c5cef8726cc8f8c26a93739f10d1f68d101f9d2d94302dc248704e
XpertRAT
af504337b51f5fb5bcc3c779afc95bf5b167431660ebd8b71fcfdff1ec9e227a
XpertRAT
eec64be092d3bd6ac2f32cbbc1bb4f50b373200d8431ae7f62a02834afbe7aef
XpertRAT
fffef10b9e3db99c874f8b9dd3bb8bd7adaf829b75d4e6f28ebacd5755b633d7
XpertRAT
+ 518 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
persistence evasion trojan
Link:
https://tria.ge/reports/200817-h4pjdtget2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System policy modification
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System policy modification
Suspicious use of SetThreadContext
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Adds Run key to start application
Checks whether UAC is enabled
Windows security modification
Windows security modification
Adds policy Run key to start application
Adds policy Run key to start application
UAC bypass
Windows security bypass
UAC bypass
Windows security bypass
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Backdoor
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/293bf5eeec6d5d30ee3b3d26f73d6cb81f4e080a449774fc8d2c3a724454f521

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: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.

Malspam

NanoCore

zip 1caa0c0cf4ebf43877c706c82a15ef218e09063e1e5d6a806b625f8a0e5e3b0d

XpertRAT

Executable exe 293bf5eeec6d5d30ee3b3d26f73d6cb81f4e080a449774fc8d2c3a724454f521

(this sample)

  
Dropped by
MD5 4793a9229d11749bc8ea30f375ee2809
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/47298/
  
Dropped by
SHA256 1caa0c0cf4ebf43877c706c82a15ef218e09063e1e5d6a806b625f8a0e5e3b0d

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