MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6ad1ca30615fb9469d7b0d254d14964f4dabf786f2f9096d77c0e2e5dbf600b9. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6ad1ca30615fb9469d7b0d254d14964f4dabf786f2f9096d77c0e2e5dbf600b9
SHA3-384 hash: e29d5d32260e627cab945af8b1325b4db1584e9308278213450e9158fc61f40b6a419c793d97e57628c8b7a961b96507
SHA1 hash: bfd00ff65f9b6636187fcf7d4846f8d1aa27f949
MD5 hash: 9bee8e02923c4ce0d3bd0d56f6617731
humanhash: magnesium-foxtrot-wisconsin-ceiling
File name:Barta GeneralBrochureMIvBiUiGxthLYlq0UbCCfwhzA7zt_PDF.exe.exe
Download: download sample
Signature XpertRAT
Create hunting rule
File size:601'600 bytes
First seen:2020-08-19 09:24:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'207 x SnakeKeylogger)
ssdeep 12288:vR2dldLwhtTP0WZXnXQegYdOtEoEEnC8AOI+LQy6nnjqKoe:JSbsfswgRt90e6nnjqKoe
Threatray 695 similar samples on MalwareBazaar
TLSH CFD4BF4B3540C59DCE6D48F7A206486423A5DCBFC608F20A6FC623D75ED9BE24D22B5B
Reporter abuse_ch
Tags:exe XpertRAT


Avatar
abuse_ch
Malspam distributing unidentified malware:

From: Barta Yapı <info@bartayapi.com.tr>
Subject: Barta Construction Promotion
Attachment: Barta General BrochureMIvBiUiGxthLYlq0UbCCfwhzA7zt_PDF.exe.gz (contains "Barta General BrochureMIvBiUiGxthLYlq0UbCCfwhzA7zt_PDF.exe.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
87
Origin country :
n/a
Vendor Threat Intelligence
Detection:
XpertRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/48333/
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
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Deleting a recently created file
Replacing files
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process
Blocking the User Account Control
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun
Deleting of the original file
Result
Threat name:
XpertRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/437244
Signature
Changes security center settings (notifications, updates, antivirus, firewall)
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Deletes itself after installation
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)
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected Generic Dropper
Yara detected XpertRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 271098 Sample: Barta GeneralBrochureMIvBiU... Startdate: 19/08/2020 Architecture: WINDOWS Score: 100 45 Malicious sample detected (through community Yara rule) 2->45 47 Detected unpacking (creates a PE file in dynamic memory) 2->47 49 Yara detected XpertRAT 2->49 51 5 other signatures 2->51 8 Barta GeneralBrochureMIvBiUiGxthLYlq0UbCCfwhzA7zt_PDF.exe.exe 3 2->8         started        12 L7N5H8T1-D8F4-W0G0-J2H6-T8S8Y5H224P8.exe 3 2->12         started        14 L7N5H8T1-D8F4-W0G0-J2H6-T8S8Y5H224P8.exe 2 2->14         started        16 L7N5H8T1-D8F4-W0G0-J2H6-T8S8Y5H224P8.exe 2 2->16         started        process3 file4 35 Barta GeneralBroch...7zt_PDF.exe.exe.log, ASCII 8->35 dropped 59 Injects a PE file into a foreign processes 8->59 18 Barta GeneralBrochureMIvBiUiGxthLYlq0UbCCfwhzA7zt_PDF.exe.exe 1 1 8->18         started        61 Machine Learning detection for dropped file 12->61 21 L7N5H8T1-D8F4-W0G0-J2H6-T8S8Y5H224P8.exe 1 12->21         started        23 L7N5H8T1-D8F4-W0G0-J2H6-T8S8Y5H224P8.exe 1 14->23         started        25 L7N5H8T1-D8F4-W0G0-J2H6-T8S8Y5H224P8.exe 16->25         started        signatures5 process6 signatures7 53 Changes security center settings (notifications, updates, antivirus, firewall) 18->53 55 Disables user account control notifications 18->55 57 Disables UAC (registry) 18->57 27 iexplore.exe 3 9 18->27         started        process8 dnsIp9 41 185.165.153.219, 49736, 49737, 49738 DAVID_CRAIGGG Netherlands 27->41 37 L7N5H8T1-D8F4-W0G0-J2H6-T8S8Y5H224P8.exe, PE32 27->37 dropped 39 C:\...\L7N5H8T1-D8F4-W0G0-J2H6-T8S8Y5H224P8, data 27->39 dropped 63 Creates an undocumented autostart registry key 27->63 65 Creates autostart registry keys with suspicious names 27->65 67 Writes to foreign memory regions 27->67 32 notepad.exe 27->32         started        file10 signatures11 process12 signatures13 43 Deletes itself after installation 32->43
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6ad1ca30615fb9469d7b0d254d14964f4dabf786f2f9096d77c0e2e5dbf600b9/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-18 12:42:22 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nli4umdbl64unhl3busu2fewj5g2x54g6l4qs3lxydrolw7wac4q._file
Verdict:
malicious
Similar samples:
1bfdb7e4f0aadba330b6017c2608570e791bfddff789d128ecb5ca9a5a06e6fe
XpertRAT
263573ece93d13d69ed99ea6be5715ca5b15e1877ed09a274ca9cf55f4d16a22
XpertRAT
381f02195474516491ab7964f7c266d5b8dfb99e0b84b359bba583ba6fd8ff88
XpertRAT
673aa6ede02270b33f4a7058ec4e31eabd688ca4c75037ed4a7f92470a42a271
XpertRAT
7cc4e45a2448e81c638cf0a84c269d7d926135647f95d318279429587d462e9a
XpertRAT
8ae81522b85b942557d654bd85f719d2a8b539106e787c451f0d2856effc6ca4
XpertRAT
9f20023fc4c5c192804b85d3d206b9b78cbce88746d8611a69d27f40228d1f0a
XpertRAT
af27bd7180ad756460e32f2ae56db7cbdc8a79e73a36b261a96f803e5b051fd5
XpertRAT
b502f774e9192f77aa713347f2747b67df5a473be721226bf0b2d98bdff8a835
XpertRAT
c9522b2123a5c1d678125fecafc722f82d46c099f6c1cbcca6b95c2911130927
XpertRAT
+ 685 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
upx evasion trojan persistence spyware
Link:
https://tria.ge/reports/200819-kgtenh35ln/
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
Program crash
Deletes itself
Reads user/profile data of web browsers
Windows security modification
Deletes itself
Reads user/profile data of web browsers
Windows security modification
Adds policy Run key to start application
UPX packed file
Adds policy Run key to start application
UPX packed file
UAC bypass
Windows security bypass
Suspicious use of NtCreateProcessExOtherParentProcess
UAC bypass
Windows security bypass
Please note that we are no longer able to provide a coverage score for Virus Total.

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_a0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT
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

XpertRAT

gz 77312002c68044e86d6ed1d14d5741e307c96cde5541cfa05a0aff440de3bafc

XpertRAT

Executable exe 6ad1ca30615fb9469d7b0d254d14964f4dabf786f2f9096d77c0e2e5dbf600b9

(this sample)

  
Dropped by
MD5 e9bed3d90bd327396975132279714b68
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/48333/
  
Dropped by
SHA256 77312002c68044e86d6ed1d14d5741e307c96cde5541cfa05a0aff440de3bafc

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