MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 daf3291e47f8659d58a505b5ed585987018001e08827f3aff1ab0bb860bd5c80. 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: daf3291e47f8659d58a505b5ed585987018001e08827f3aff1ab0bb860bd5c80
SHA3-384 hash: c68f05c4366a808e9bca65975354ab4ace11358df81af9e6b991904c30d4b3ecb7b2b17dd8e0901335a9de67223d42f1
SHA1 hash: b5eb42feb127898ef72ad78ac039dd2e80dc0ab6
MD5 hash: a7433aeec10caba2de9978e0de200cc3
humanhash: happy-chicken-moon-uranus
File name:ES174028911-035110-sanlccjavap0004-1_pdf.exe
Download: download sample
Signature XpertRAT
Create hunting rule
File size:1'345'536 bytes
First seen:2020-11-09 16:13:23 UTC
Last seen:2020-11-09 17:47:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:TfMot2M1IhHXjQjsGySvIN+erevOikeKa9q9IhzY73bVEZQw9ethMH6FpfMH5y6T:Tdwzo/u9+Y7m7L4fa06nnjqKoe9
Threatray 1'486 similar samples on MalwareBazaar
TLSH 3355634854A9638AD43733BE57743481C3B4DA6772E8C9D3029CBBB2EE8DC365B71A05
Reporter abuse_ch
Tags:ESP exe geo XpertRAT


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: lnx002.plus4web.com
Sending IP: 80.93.214.55
From: Grupo Santander <fycout@gruposantander.es>
Subject: Notificación de demora de remesas.
Attachment: ES174028911-035110-sanlccjavap0004-1_pdf.gz (contains "ES174028911-035110-sanlccjavap0004-1_pdf.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
123
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.ArtemisA7433AEEC10C.6124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Using the Windows Management Instrumentation requests
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
Deleting a recently created file
Replacing files
Reading critical registry keys
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
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:
MailPassView XpertRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/526645
Signature
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
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)
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 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: 312414 Sample: ES174028911-035110-sanlccja... Startdate: 09/11/2020 Architecture: WINDOWS Score: 100 55 Malicious sample detected (through community Yara rule) 2->55 57 Multi AV Scanner detection for submitted file 2->57 59 Yara detected MailPassView 2->59 61 6 other signatures 2->61 8 ES174028911-035110-sanlccjavap0004-1_pdf.exe 3 2->8         started        12 Y550W6I4-W1O8-Y8D6-E6U5-B8X0R3E4K7S2.exe 3 2->12         started        14 Y550W6I4-W1O8-Y8D6-E6U5-B8X0R3E4K7S2.exe 2 2->14         started        16 Y550W6I4-W1O8-Y8D6-E6U5-B8X0R3E4K7S2.exe 2->16         started        process3 file4 51 ES174028911-035110...p0004-1_pdf.exe.log, ASCII 8->51 dropped 79 Detected unpacking (creates a PE file in dynamic memory) 8->79 81 Injects a PE file into a foreign processes 8->81 18 ES174028911-035110-sanlccjavap0004-1_pdf.exe 1 1 8->18         started        21 ES174028911-035110-sanlccjavap0004-1_pdf.exe 8->21         started        23 ES174028911-035110-sanlccjavap0004-1_pdf.exe 8->23         started        25 ES174028911-035110-sanlccjavap0004-1_pdf.exe 8->25         started        83 Multi AV Scanner detection for dropped file 12->83 85 Machine Learning detection for dropped file 12->85 27 Y550W6I4-W1O8-Y8D6-E6U5-B8X0R3E4K7S2.exe 12->27         started        29 Y550W6I4-W1O8-Y8D6-E6U5-B8X0R3E4K7S2.exe 14->29         started        31 Y550W6I4-W1O8-Y8D6-E6U5-B8X0R3E4K7S2.exe 16->31         started        signatures5 process6 signatures7 63 Changes security center settings (notifications, updates, antivirus, firewall) 18->63 65 Disables user account control notifications 18->65 67 Writes to foreign memory regions 18->67 69 2 other signatures 18->69 33 iexplore.exe 3 9 18->33         started        process8 dnsIp9 53 79.134.225.99, 49730, 49731, 49732 FINK-TELECOM-SERVICESCH Switzerland 33->53 47 Y550W6I4-W1O8-Y8D6-E6U5-B8X0R3E4K7S2.exe, PE32 33->47 dropped 49 C:\...\Y550W6I4-W1O8-Y8D6-E6U5-B8X0R3E4K7S2, data 33->49 dropped 71 Creates an undocumented autostart registry key 33->71 73 Creates autostart registry keys with suspicious names 33->73 75 Writes to foreign memory regions 33->75 38 notepad.exe 33->38         started        41 iexplore.exe 1 33->41         started        43 iexplore.exe 13 33->43         started        45 3 other processes 33->45 file10 signatures11 process12 signatures13 77 Deletes itself after installation 38->77
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/daf3291e47f8659d58a505b5ed585987018001e08827f3aff1ab0bb860bd5c80/
Threat name:
ByteCode-MSIL.Trojan.Azorult
Create hunting rule
Status:
Malicious
First seen:
2020-11-09 12:38:27 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3lzsshsh7bsz2wffaw262wczq4ayaaparat7hl7rvmf3qyf5lsaa._file
Verdict:
malicious
Similar samples:
08927d7955b1be7fd05d81a73057242117540094dda7cca1c162f3aea18c2854
XpertRAT
12f341bc0f65e96848b4dd440afc7f653e883e740adcb677fc4f8b5ba5c38ef2
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13c555d2bc29bc384b7c496c0aefadfbe38d7b415e11c43bdbcfdf702062d1f3
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276963ec4efb403c18a96f94786c7b9f775a1bb22169636d8f594241288df9d3
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4aff31bec64048fdf3913ac6ac61d5670cc351a3054500e6dcf25779b1a2e54b
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59b88d9a9cc0b316b6cb94cae1e639933685da63bbbfe6c384acfbc11d430aae
XpertRAT
7d90dd1c7420b9b1300ffc653c2465fa6c602f664b2cd0fdf1644a5cdef4954a
XpertRAT
a36735377d731d16330587a190a99acbd5a1d9556e066d771268f8b4b6cd3821
XpertRAT
c675725093fc52813ef776f4c04acb080bcc017691987fd2c8db555911f6ab13
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f79b985c1bf0b6708864ec45d12917c2e130dc53408b648b893179874f8e4b97
XpertRAT
+ 1'476 additional samples on MalwareBazaar
Result
Malware family:
xpertrat
Create hunting rule
Score:
  10/10
Tags:
family:xpertrat evasion persistence rat spyware trojan upx
Link:
https://tria.ge/reports/201109-m22ephta2s/
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
Program crash
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
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/daf3291e47f8659d58a505b5ed585987018001e08827f3aff1ab0bb860bd5c80

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_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 c9d248df48f74f94727027117400b04ee9feafc6fc4ad0bb206d0b52fb2172d9

XpertRAT

Executable exe daf3291e47f8659d58a505b5ed585987018001e08827f3aff1ab0bb860bd5c80

(this sample)

  
Dropped by
MD5 2a07e6b07892e979c0660cf5fa8c25a2
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 c9d248df48f74f94727027117400b04ee9feafc6fc4ad0bb206d0b52fb2172d9

Comments