MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8d430b1bdab27f5308b0f3817a50718dc72c01f0a126c44c15e0959efd3f588. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b8d430b1bdab27f5308b0f3817a50718dc72c01f0a126c44c15e0959efd3f588
SHA3-384 hash: ef0ffffcf43b59930fdb7368a85c1101faa00141e0d2a151d59f4abedb575ad9b59419e8724b762439f18797b7b3cbe1
SHA1 hash: 1eff821be1890fafda7a86e0558bb5ab33e19f3c
MD5 hash: 8fe9be96087c330447fde8a3f2e48dd9
humanhash: cold-carolina-failed-missouri
File name:fattura di pagamento 0CV1-005444pdf.exe
Download: download sample
Signature XpertRAT
Create hunting rule
File size:1'127'936 bytes
First seen:2020-10-19 10:54:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 24576:nbA1GUKzodGGNxw3jMeW6Sx7n9Zc6nnjqKoe:bANKzoOA76SxzhjqKoe
Threatray 405 similar samples on MalwareBazaar
TLSH 1B357C4237F44B48E97A57F65225404097B6BAAE912DD20C7ECD32DF9FB1B010A63B27
Reporter abuse_ch
Tags:exe geo ITA RAT XpertRAT


Avatar
abuse_ch
Malspam distributing XpertRAT:

From: fatturazione@cbceurope.it
Subject: CBC (EUROPE) SRL -fatturs de pagamento 0CV1-005444
Attachment: fattura di pagamento 0CV1-005444pdf.gz (contains "fattura di pagamento 0CV1-005444pdf.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
109
Origin country :
n/a
Vendor Threat Intelligence
Detection:
XpertRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/72918/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
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
Using the Windows Management Instrumentation requests
Reading critical registry keys
Launching the default Windows debugger (dwwin.exe)
Deleting a recently created file
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
Sending a TCP request to an infection source
Stealing user critical data
Enabling autorun
Deleting of the original file
Result
Threat name:
MailPassView XpertRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/495299
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
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 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
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 MailPassView
Yara detected WebBrowserPassView password recovery tool
Yara detected XpertRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 300104 Sample: fattura di pagamento 0CV1-0... Startdate: 19/10/2020 Architecture: WINDOWS Score: 100 65 Malicious sample detected (through community Yara rule) 2->65 67 Detected unpacking (creates a PE file in dynamic memory) 2->67 69 Yara detected MailPassView 2->69 71 7 other signatures 2->71 9 fattura di pagamento 0CV1-005444pdf.exe 3 2->9         started        13 Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336.exe 3 2->13         started        15 Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336.exe 2->15         started        17 Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336.exe 2 2->17         started        process3 file4 49 fattura di pagamen...1-005444pdf.exe.log, ASCII 9->49 dropped 83 Injects a PE file into a foreign processes 9->83 19 fattura di pagamento 0CV1-005444pdf.exe 1 1 9->19         started        85 Multi AV Scanner detection for dropped file 13->85 87 Machine Learning detection for dropped file 13->87 22 Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336.exe 1 13->22         started        24 Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336.exe 15->24         started        26 Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336.exe 15->26         started        28 Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336.exe 17->28         started        signatures5 process6 signatures7 73 Changes security center settings (notifications, updates, antivirus, firewall) 19->73 75 Disables user account control notifications 19->75 77 Writes to foreign memory regions 19->77 79 2 other signatures 19->79 30 iexplore.exe 3 8 19->30         started        process8 dnsIp9 57 79.134.225.97, 4726, 49725, 49726 FINK-TELECOM-SERVICESCH Switzerland 30->57 51 Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336.exe, PE32 30->51 dropped 53 C:\...\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336, data 30->53 dropped 59 Creates an undocumented autostart registry key 30->59 61 Creates autostart registry keys with suspicious names 30->61 63 Writes to foreign memory regions 30->63 35 notepad.exe 30->35         started        38 iexplore.exe 13 30->38         started        41 iexplore.exe 30->41         started        43 5 other processes 30->43 file10 signatures11 process12 dnsIp13 81 Deletes itself after installation 35->81 55 192.168.2.1 unknown unknown 38->55 45 WerFault.exe 41->45         started        47 WerFault.exe 43->47         started        signatures14 process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b8d430b1bdab27f5308b0f3817a50718dc72c01f0a126c44c15e0959efd3f588/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-19 10:56:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
56
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xdkdbmn5vmt7kmelb44bpjihddohfqa7bijgyrgblyevt36t6wea._file
Verdict:
malicious
Similar samples:
006c01ecec6a14ad6038b988764b9cebc4f75cdccd4ccedc5b962bdd3cc994bd
XpertRAT
08927d7955b1be7fd05d81a73057242117540094dda7cca1c162f3aea18c2854
XpertRAT
12f341bc0f65e96848b4dd440afc7f653e883e740adcb677fc4f8b5ba5c38ef2
XpertRAT
13c555d2bc29bc384b7c496c0aefadfbe38d7b415e11c43bdbcfdf702062d1f3
XpertRAT
276963ec4efb403c18a96f94786c7b9f775a1bb22169636d8f594241288df9d3
XpertRAT
4aff31bec64048fdf3913ac6ac61d5670cc351a3054500e6dcf25779b1a2e54b
XpertRAT
59b88d9a9cc0b316b6cb94cae1e639933685da63bbbfe6c384acfbc11d430aae
XpertRAT
7d90dd1c7420b9b1300ffc653c2465fa6c602f664b2cd0fdf1644a5cdef4954a
XpertRAT
a36735377d731d16330587a190a99acbd5a1d9556e066d771268f8b4b6cd3821
XpertRAT
f79b985c1bf0b6708864ec45d12917c2e130dc53408b648b893179874f8e4b97
XpertRAT
+ 395 additional samples on MalwareBazaar
Result
Malware family:
xpertrat
Create hunting rule
Score:
  10/10
Tags:
upx rat family:xpertrat spyware evasion trojan persistence
Link:
https://tria.ge/reports/201019-tygmpnc7ha/
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
Deletes itself
Reads user/profile data of web browsers
Windows security modification
Adds policy Run key to start application
UPX packed file
UAC bypass
Windows security bypass
XpertRAT
XpertRAT Core Payload
Unpacked files
SH256 hash:
b8d430b1bdab27f5308b0f3817a50718dc72c01f0a126c44c15e0959efd3f588
MD5 hash:
8fe9be96087c330447fde8a3f2e48dd9
SHA1 hash:
1eff821be1890fafda7a86e0558bb5ab33e19f3c
Link:
https://www.unpac.me/results/bce500d4-d04d-4cb4-b817-38cef3c9946e/
SH256 hash:
fbf2b550297bdeea33b3f427bf3164971c34850f5739dd89d6c4fd2eef1fe6d9
MD5 hash:
259e6bbf5d83e431f313b631d210fc56
SHA1 hash:
c75ed77343fe630825b03a669bdda19e0a7a1cc7
Detections:
win_xpertrat_a0
Create hunting rule
win_xpertrat_auto
Create hunting rule
Link:
https://www.unpac.me/results/bce500d4-d04d-4cb4-b817-38cef3c9946e/
SH256 hash:
31ce938626ccfb399fe1696710caf46d7ae9eb598b9d7d2aad719b594658469b
MD5 hash:
0aebe46040ceb011e78506d4985fe3de
SHA1 hash:
218ac1e7b14a66c604ec3042f8486bed9cd4c2c1
Link:
https://www.unpac.me/results/bce500d4-d04d-4cb4-b817-38cef3c9946e/
SH256 hash:
9fba860ca8c410d23826f8693ec6f51da21b5d0504c6d980eaabd620cdadb69e
MD5 hash:
70e12918bae0b56abe4b581485a20e02
SHA1 hash:
4c53c6672dee2de60c8eb8cfdda35c25f8d13fde
Link:
https://www.unpac.me/results/bce500d4-d04d-4cb4-b817-38cef3c9946e/
SH256 hash:
33ba280f7023bdacaf1b0f38fec85bb13371e1474b540288978f6044597d3cc9
MD5 hash:
61c582ce1545ca120f29ffa666ba23c3
SHA1 hash:
ab48a587603527e3d022105227612e0b8319e291
Link:
https://www.unpac.me/results/bce500d4-d04d-4cb4-b817-38cef3c9946e/
SH256 hash:
7d0fb6c0135f6c4f2c0f2f774ea640459478eb0f086ef5bb2cbde2676c04c506
MD5 hash:
e5c44aac80bc38d4c948478ba2b1a766
SHA1 hash:
fd3f895803bdcdb675cb22546c04a5bbd0628b76
Detections:
win_xpertrat_a0
Create hunting rule
win_xpertrat_auto
Create hunting rule
Link:
https://www.unpac.me/results/bce500d4-d04d-4cb4-b817-38cef3c9946e/
Parent samples :
b8d430b1bdab27f5308b0f3817a50718dc72c01f0a126c44c15e0959efd3f588
c675725093fc52813ef776f4c04acb080bcc017691987fd2c8db555911f6ab13
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/b8d430b1bdab27f5308b0f3817a50718dc72c01f0a126c44c15e0959efd3f588

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: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 ded1c368e288aa4311863b6e7f116157ec272047db2ce79bc73f7e9e3b294254

XpertRAT

Executable exe b8d430b1bdab27f5308b0f3817a50718dc72c01f0a126c44c15e0959efd3f588

(this sample)

  
Dropped by
MD5 531c028761923cc589d3c4400475b0f7
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/72918/
  
Dropped by
SHA256 ded1c368e288aa4311863b6e7f116157ec272047db2ce79bc73f7e9e3b294254

Comments