MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21d8f3869dae855f7ddb202eca9bc170074ab405c7741cbd4ffb48960494234f. 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 1 YARA 4 File information Comments

SHA256 hash: 21d8f3869dae855f7ddb202eca9bc170074ab405c7741cbd4ffb48960494234f
SHA3-384 hash: 1c08b0e80ae7c2953b4ee70493b58fc58a3980b87202983ce4ef6e9fc8729b17746fa39348f1bcbb023ea549f51be44c
SHA1 hash: 629afe08ffe9d3660e7fd3918122af70fa49a5fd
MD5 hash: bde5cc055efbc8779784a94811e3e5a5
humanhash: ink-fix-video-music
File name:gunzipped.exe
Download: download sample
Signature XpertRAT
File size:1'551'872 bytes
First seen:2021-04-15 17:51:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:OA6uymey+IUTw+ucXBK5I+FUf5GTbRUjyKqyrQxsX1HDr4MIhq6jgck+:yN5G6ZqyECppc3
Threatray 5'131 similar samples on MalwareBazaar
TLSH D1757CCE3270BE9FC497CD3385553CD0A6A9BC66870BD217A09316DCAE1D946DF086E2
Reporter abuse_ch
Tags:exe XpertRAT


Avatar
abuse_ch
XpertRAT C2:
79.134.225.117:5935

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
79.134.225.117:5935 https://threatfox.abuse.ch/ioc/8628/

Intelligence


File Origin
# of uploads :
1
# of downloads :
126
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
gunzipped.exe
Verdict:
Suspicious activity
Analysis date:
2021-04-15 18:34:54 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
XpertRAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Changes security center settings (notifications, updates, antivirus, firewall)
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 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
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM3
Yara detected Generic Dropper
Yara detected XpertRAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 388477 Sample: gunzipped.exe Startdate: 16/04/2021 Architecture: WINDOWS Score: 100 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 Yara detected XpertRAT 2->52 54 4 other signatures 2->54 8 gunzipped.exe 3 2->8         started        12 V8V5U6A3-F774-P2N8-M6H6-L4M443J6G7A1.exe 3 2->12         started        14 V8V5U6A3-F774-P2N8-M6H6-L4M443J6G7A1.exe 2 2->14         started        16 V8V5U6A3-F774-P2N8-M6H6-L4M443J6G7A1.exe 2 2->16         started        process3 file4 40 C:\Users\user\AppData\...\gunzipped.exe.log, ASCII 8->40 dropped 60 Detected unpacking (changes PE section rights) 8->60 62 Detected unpacking (creates a PE file in dynamic memory) 8->62 64 Detected unpacking (overwrites its own PE header) 8->64 18 gunzipped.exe 1 1 8->18         started        66 Multi AV Scanner detection for dropped file 12->66 68 Machine Learning detection for dropped file 12->68 70 Injects a PE file into a foreign processes 12->70 21 V8V5U6A3-F774-P2N8-M6H6-L4M443J6G7A1.exe 1 12->21         started        23 V8V5U6A3-F774-P2N8-M6H6-L4M443J6G7A1.exe 1 14->23         started        25 V8V5U6A3-F774-P2N8-M6H6-L4M443J6G7A1.exe 16->25         started        signatures5 process6 signatures7 56 Changes security center settings (notifications, updates, antivirus, firewall) 18->56 58 Disables user account control notifications 18->58 27 gunzipped.exe 3 7 18->27         started        32 gunzipped.exe 18->32         started        34 gunzipped.exe 18->34         started        36 3 other processes 18->36 process8 dnsIp9 46 79.134.225.117, 49715, 49720, 49721 FINK-TELECOM-SERVICESCH Switzerland 27->46 42 V8V5U6A3-F774-P2N8-M6H6-L4M443J6G7A1.exe, PE32 27->42 dropped 44 C:\...\V8V5U6A3-F774-P2N8-M6H6-L4M443J6G7A1, data 27->44 dropped 72 Creates an undocumented autostart registry key 27->72 74 Creates autostart registry keys with suspicious names 27->74 38 WerFault.exe 32->38         started        file10 signatures11 process12
Threat name:
ByteCode-MSIL.Infostealer.Coins
Status:
Malicious
First seen:
2021-04-15 17:52:21 UTC
AV detection:
11 of 29 (37.93%)
Threat level:
  5/5
Result
Malware family:
xpertrat
Score:
  10/10
Tags:
family:xpertrat evasion persistence rat spyware stealer trojan upx
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
Reads user/profile data of web browsers
Windows security modification
Adds policy Run key to start application
UPX packed file
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
UAC bypass
Windows security bypass
XpertRAT
XpertRAT Core Payload
Unpacked files
SH256 hash:
5e0f3da625a479a5e7e807b5f09c889d95474139410b312ba3a39bcb05976729
MD5 hash:
3d20c2ea9ac04e1707f853bb1780bc18
SHA1 hash:
805e90b023eb92d44bbe11daefce6edbe872cb74
SH256 hash:
21d8f3869dae855f7ddb202eca9bc170074ab405c7741cbd4ffb48960494234f
MD5 hash:
bde5cc055efbc8779784a94811e3e5a5
SHA1 hash:
629afe08ffe9d3660e7fd3918122af70fa49a5fd
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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:Keylog_bin_mem
Author:James_inthe_box
Description:Contains Keylog
Rule name:MALWARE_Win_XpertRAT
Author:ditekSHen
Description:XpertRAT payload
Rule name:win_xpertrat_auto
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.

Comments