MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 13c555d2bc29bc384b7c496c0aefadfbe38d7b415e11c43bdbcfdf702062d1f3. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 13c555d2bc29bc384b7c496c0aefadfbe38d7b415e11c43bdbcfdf702062d1f3
SHA3-384 hash: d68a351a1ace72378047c46a86b7b3f2bb5c037475059f1915d2df39f49e864a58de4d15f4b8c25fb4c5ce775548d0ac
SHA1 hash: a911fb8e9f323561f202f58cb26f177a5b7eef72
MD5 hash: 7789215ed9d6d730fb242791151786ea
humanhash: equal-october-two-tennessee
File name:Fa-200000345.exe
Download: download sample
Signature XpertRAT
Create hunting rule
File size:997'376 bytes
First seen:2020-08-10 11:39:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ce9dc34dcdc6dcac1abc92d3ec049de7 (11 x AgentTesla, 4 x MassLogger, 2 x FormBook)
ssdeep 24576:C4UOaeCWal93GVRL2N29Cjdfjs2ZreLBGp9l:CnWM9kRL/9Crs2Z6LBAl
Threatray 4'984 similar samples on MalwareBazaar
TLSH E525C016E1E00833C367D53F9D0B56A7992BBD523A2469CA6BE45C484F397B03C252BF
Reporter abuse_ch
Tags:exe RAT XpertRAT


Avatar
abuse_ch
Malspam distributing XpertRAT:

HELO: bcsconsultores.es
Sending IP: 217.116.8.54
From: Contabilidad <info@fedizseguros.com>
Subject: CONSULTA TRANSFERENCIA FRA. Nº 345 y Fr. Nº 346.
Attachment: Fa-200000345.zip (contains "Fa-200000345.exe")

XpertRAT C2:
103.141.138.121:4567

Intelligence

File Origin
# of uploads :
1
# of downloads :
89
Origin country :
n/a
Vendor Threat Intelligence
Detection:
XpertRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/42733/
Detection(s):
Win.Trojan.004be7cd-6760703-0
Create hunting rule

Win.Trojan.Generic-6760707-0
Create hunting rule

PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

SecuriteInfo.com.BScope.Adware.Kraddare.1524.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Deleting a recently created file
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Sending a UDP request
Replacing files
Reading critical registry keys
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
Stealing user critical data
Enabling autorun
Result
Threat name:
AgentTesla MailPassView XpertRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/416812
Signature
.NET source code contains potential unpacker
Changes security center settings (notifications, updates, antivirus, firewall)
Contains functionality to detect sleep reduction / modifications
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Disables UAC (registry)
Disables user account control notifications
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses process hollowing technique
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected AgentTesla
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: 260808 Sample: Fa-200000345.exe Startdate: 10/08/2020 Architecture: WINDOWS Score: 100 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Yara detected MailPassView 2->56 58 6 other signatures 2->58 9 Fa-200000345.exe 3 2->9         started        13 Q0V4O1A8-O5N3-X331-D1M0-A2W3Q6D8C2R6.exe 1 2->13         started        15 Q0V4O1A8-O5N3-X331-D1M0-A2W3Q6D8C2R6.exe 1 2->15         started        17 Q0V4O1A8-O5N3-X331-D1M0-A2W3Q6D8C2R6.exe 1 2->17         started        process3 file4 42 C:\Users\user\AppData\Local\Temp\ATT&T.exe, PE32 9->42 dropped 76 Detected unpacking (changes PE section rights) 9->76 78 Detected unpacking (creates a PE file in dynamic memory) 9->78 80 Detected unpacking (overwrites its own PE header) 9->80 84 4 other signatures 9->84 19 ATT&T.exe 1 1 9->19         started        22 Fa-200000345.exe 4 9->22         started        25 Fa-200000345.exe 9->25         started        82 Machine Learning detection for dropped file 13->82 signatures5 process6 dnsIp7 60 Changes security center settings (notifications, updates, antivirus, firewall) 19->60 62 Machine Learning detection for dropped file 19->62 64 Disables user account control notifications 19->64 74 2 other signatures 19->74 27 iexplore.exe 3 9 19->27         started        46 salsabile.com 149.202.81.65, 49733, 587 OVHFR France 22->46 48 mail.salsabile.com 22->48 66 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->66 68 Tries to steal Mail credentials (via file access) 22->68 70 Tries to harvest and steal ftp login credentials 22->70 72 Tries to harvest and steal browser information (history, passwords, etc) 22->72 signatures8 process9 dnsIp10 50 103.141.138.121, 4567, 49721, 49722 VNPT-AS-VNVIETNAMPOSTSANDTELECOMMUNICATIONSGROUPVN Viet Nam 27->50 44 Q0V4O1A8-O5N3-X331-D1M0-A2W3Q6D8C2R6.exe, PE32 27->44 dropped 86 Creates an undocumented autostart registry key 27->86 88 Creates autostart registry keys with suspicious names 27->88 90 Writes to foreign memory regions 27->90 32 iexplore.exe 27->32         started        34 iexplore.exe 13 27->34         started        36 iexplore.exe 1 27->36         started        38 4 other processes 27->38 file11 signatures12 process13 process14 40 WerFault.exe 32->40         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/13c555d2bc29bc384b7c496c0aefadfbe38d7b415e11c43bdbcfdf702062d1f3/
Threat name:
Win32.Trojan.LokiBot
Create hunting rule
Status:
Malicious
First seen:
2020-08-10 11:41:07 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=cpcvluv4fg6dqs34jfwav35n7pry262blyi4io63z7pxaidc2hzq._file
Verdict:
malicious
Label(s):
hawkeyekeylogger
Create hunting rule
emotet
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
006c01ecec6a14ad6038b988764b9cebc4f75cdccd4ccedc5b962bdd3cc994bd
XpertRAT
12f341bc0f65e96848b4dd440afc7f653e883e740adcb677fc4f8b5ba5c38ef2
XpertRAT
2b8072cf7b0c14a4f9c662d66cf5f6a64c7defb73fb6b0fcc9cd5d32ff004101
XpertRAT
4aff31bec64048fdf3913ac6ac61d5670cc351a3054500e6dcf25779b1a2e54b
XpertRAT
9666c06b6da42bc3cc7ae265a46cd4d137c74a1be711151efe9a44c31a894a78
XpertRAT
ada06fa53bcebf55db1efd74571846489efb56f71f3e8283e157e78c69da8ee4
XpertRAT
bd2bf7c79dda8208f9ec0c2199d1ec61058aa43bbe6f8548623444fc143a3aec
XpertRAT
d87c321887e33a1f90a29b21be81459835a725d9a056916b1cafaaacc06169f5
XpertRAT
efa7f245a35c85568d26690f149f992e77c007fa1fbb7c2f4f050cea7fcca930
XpertRAT
fd54073286010523ef59ce428c3ae8b92f87abce1027ed232befe46499bf5e53
XpertRAT
+ 4'974 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
upx keylogger stealer trojan spyware family:agenttesla evasion persistence
Link:
https://tria.ge/reports/200810-g2efb1a2s6/
Behaviour
System policy modification
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Loads dropped DLL
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Windows security modification
Adds policy Run key to start application
Executes dropped EXE
UPX packed file
AgentTesla Payload
UAC bypass
AgentTesla
Windows security bypass
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/13c555d2bc29bc384b7c496c0aefadfbe38d7b415e11c43bdbcfdf702062d1f3

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences
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

zip d2d8470a451c5d183f4e337417397fca0c75e00e51f9ddfffbbaf9b2f675edc1

XpertRAT

Executable exe 13c555d2bc29bc384b7c496c0aefadfbe38d7b415e11c43bdbcfdf702062d1f3

(this sample)

  
Dropped by
MD5 740ae2984b6dcab569df5530f6f52b82
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 d2d8470a451c5d183f4e337417397fca0c75e00e51f9ddfffbbaf9b2f675edc1
Cape
Cape
https://www.capesandbox.com/analysis/42733/

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