MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21553a3434749569bbb6dbf77da2d47a16828a09fdbbb93108b9cf314fb42add. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 21553a3434749569bbb6dbf77da2d47a16828a09fdbbb93108b9cf314fb42add
SHA3-384 hash: 89a640223a4391502e86848ab468b545fc8b534e671e106d56eec9abe75496b36fca3a557a48ebb965d1cf1af895a527
SHA1 hash: 085915cc9d5fae22d24e9451228f305ab8345d44
MD5 hash: ebd23085bae2a8453314f15e526ecc50
humanhash: single-friend-tango-fifteen
File name:RFQ#00439811.exe
Download: download sample
Signature XpertRAT
Create hunting rule
File size:463'360 bytes
First seen:2021-11-23 07:07:21 UTC
Last seen:2021-11-23 08:54:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:PcC36Ot2scIqF24WtBq95HpUal0yxoXxDpgvGESitD00:Es6Orcv24V99W0oBnriC0
TLSH T113A402A033A4A396CCA94FB50C20D0E52331B2563D14D75EEDC9628F1E767265B23BB7
Reporter lowmal3
Tags:exe XpertRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
136
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ#00439811.exe
Verdict:
Malicious activity
Analysis date:
2021-11-23 07:09:55 UTC
Tags:
trojan rat xpertrat stealer
Link:
https://app.any.run/tasks/f2f6a768-2050-4b78-8a77-1bc56d119440

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Detection(s):
SecuriteInfo.com.IL.Trojan.MSILZilla.11065.31295.23596.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
DNS request
Using the Windows Management Instrumentation requests
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/619c9355f36138de3f368420/reports/841f3f67-406a-4856-9f38-e63235d96444/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ed18469a-d1ff-497e-a09f-e18101fefcd8
Result
Threat name:
MailPassView XpertRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/894456
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 user account control notifications
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AntiVM3
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: 526934 Sample: RFQ#00439811.exe Startdate: 23/11/2021 Architecture: WINDOWS Score: 100 62 Found malware configuration 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 Antivirus detection for URL or domain 2->66 68 8 other signatures 2->68 9 RFQ#00439811.exe 3 2->9         started        13 R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6.exe 3 2->13         started        15 R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6.exe 2->15         started        17 R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6.exe 2 2->17         started        process3 file4 56 C:\Users\user\...\RFQ#00439811.exe.log, ASCII 9->56 dropped 82 Detected unpacking (creates a PE file in dynamic memory) 9->82 84 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 9->84 19 RFQ#00439811.exe 1 1 9->19         started        22 RFQ#00439811.exe 9->22         started        86 Multi AV Scanner detection for dropped file 13->86 24 R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6.exe 1 13->24         started        26 R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6.exe 15->26         started        28 R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6.exe 15->28         started        30 R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6.exe 15->30         started        32 R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6.exe 17->32         started        signatures5 process6 signatures7 70 Changes security center settings (notifications, updates, antivirus, firewall) 19->70 72 Disables user account control notifications 19->72 74 Writes to foreign memory regions 19->74 76 2 other signatures 19->76 34 iexplore.exe 3 8 19->34         started        39 iexplore.exe 19->39         started        process8 dnsIp9 58 accessgran.ydns.eu 45.144.225.147, 49763, 49764, 49765 DEDIPATH-LLCUS Netherlands 34->58 54 R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6.exe, PE32 34->54 dropped 78 Creates an undocumented autostart registry key 34->78 80 Creates autostart registry keys with suspicious names 34->80 41 iexplore.exe 34->41         started        43 iexplore.exe 1 34->43         started        45 iexplore.exe 34->45         started        49 3 other processes 34->49 47 WerFault.exe 39->47         started        file10 signatures11 process12 process13 51 WerFault.exe 23 11 41->51         started        dnsIp14 60 192.168.2.1 unknown unknown 51->60
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/21553a3434749569bbb6dbf77da2d47a16828a09fdbbb93108b9cf314fb42add/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-23 07:08:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
28 of 45 (62.22%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=efktunbuoskwto5w3p3x3iwupilifcqj7w53smiixhhtct5ufloq._file
Verdict:
malicious
Result
Malware family:
xpertrat
Create hunting rule
Score:
  10/10
Tags:
family:xpertrat collection evasion persistence rat trojan
Link:
https://tria.ge/reports/211123-hx815acef6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System policy modification
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Checks whether UAC is enabled
Maps connected drives based on registry
Program crash
Checks BIOS information in registry
Windows security modification
Adds policy Run key to start application
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
UAC bypass
Windows security bypass
XpertRAT
Unpacked files
SH256 hash:
044076940d833e9b61b6ca8016f6d9270a55946cdd7aae3efa4739cd571d5873
MD5 hash:
b41f25f009eacdec7e4b9893e1bedbab
SHA1 hash:
1f7d2139d208f8d851531ceb1267c484775c1dbd
Detections:
win_xpertrat_a0
Create hunting rule
win_xpertrat_auto
Create hunting rule
Link:
https://www.unpac.me/results/bd6b3d0c-d945-40b8-9169-313fc95920c2/
Parent samples :
8ffc84f1b1316cbcf2e68048631900210632b86e14307c3835ad7a4286bf18d5
6bf55bc421fadfd6e0ffc426390796b1a9dc4afd1e53ec9b36395951f0f539eb
c5add9cb099cfea7574003d74a2f4ef075362ed2c70ade79aad6af0286115cb4
21553a3434749569bbb6dbf77da2d47a16828a09fdbbb93108b9cf314fb42add
a399cf91b76479c1dd9381dfffb1521b69822894d8862ef00273878546b2a9d7
SH256 hash:
08a2d4adf27ab56781163c381036212c822365b67c58e3bfdc92ed57738e886b
MD5 hash:
db682419f4f190e84beaf42951dd74a1
SHA1 hash:
cdeaf7d8d1284d18f2c36c5d7d11a29dbd344870
Link:
https://www.unpac.me/results/bd6b3d0c-d945-40b8-9169-313fc95920c2/
SH256 hash:
396d4611208f02f7b7d38406bb1898d030f3845160af149d35ff92c4647cae94
MD5 hash:
25fd63f59af50a4d7a24c104ba8cc7d0
SHA1 hash:
b58a1f28443a96a007c832d1aa31185ce547160e
Link:
https://www.unpac.me/results/bd6b3d0c-d945-40b8-9169-313fc95920c2/
SH256 hash:
f30ca642597c059f9dbcc6cfea27687245fbcaf5456be0b7a4528d946f3a0a05
MD5 hash:
0f6349011cf5446131faf0cadbace87b
SHA1 hash:
0cd48b5cb5a0ca095043c333c9002ba5273e92e8
Link:
https://www.unpac.me/results/bd6b3d0c-d945-40b8-9169-313fc95920c2/
SH256 hash:
6543e1618e3da69871046e225451b00deaa5c368bce39d5434ef70082ca68d65
MD5 hash:
c13c1d5a86d3e06eb9836b4c3206ba6d
SHA1 hash:
4edd3522cfca3609ce881faebede1966ebf5e733
Detections:
win_xpertrat_a0
Create hunting rule
win_xpertrat_auto
Create hunting rule
Link:
https://www.unpac.me/results/bd6b3d0c-d945-40b8-9169-313fc95920c2/
SH256 hash:
21553a3434749569bbb6dbf77da2d47a16828a09fdbbb93108b9cf314fb42add
MD5 hash:
ebd23085bae2a8453314f15e526ecc50
SHA1 hash:
085915cc9d5fae22d24e9451228f305ab8345d44
Link:
https://www.unpac.me/results/bd6b3d0c-d945-40b8-9169-313fc95920c2/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/21553a343474/report/overview.html
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/21553a3434749569bbb6dbf77da2d47a16828a09fdbbb93108b9cf314fb42add

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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

XpertRAT

Executable exe 21553a3434749569bbb6dbf77da2d47a16828a09fdbbb93108b9cf314fb42add

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/208527/

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