MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215
SHA3-384 hash: b46fcbcb951b81416bbdb78c8217f809f0e620472cdd4ac99acf843d027246692016b2ddf6f80c6fcb04744f7cff0b2c
SHA1 hash: 945e2931b4ca160f9f3025e740cc19e75db25bf6
MD5 hash: 533fe2e3602ede540e261fef7e04b711
humanhash: hydrogen-mango-wisconsin-hot
File name:533fe2e3602ede540e261fef7e04b711.exe
Download: download sample
Signature XpertRAT
Create hunting rule
File size:61'952 bytes
First seen:2021-10-06 09:32:21 UTC
Last seen:2021-10-06 11:13:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 1536:sKuOM5YwwbkZ/R9hH9BGK2osztFsEzLaURroCoU30+HG58F2g7ELBw44444HbOAW:sKuOM5Yw6kZ/R9hH9BGK2osztFsEzLaY
Threatray 5'623 similar samples on MalwareBazaar
TLSH T1BD53D893718258EDD8EA59F2E51B58201603AC3AF575886D03E9777A09F336311EBF0B
File icon (PE):PE icon
dhash icon 9ee5656565a5a585 (14 x NanoCore, 11 x XpertRAT, 5 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe XpertRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
311
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
533fe2e3602ede540e261fef7e04b711.exe
Verdict:
Malicious activity
Analysis date:
2021-10-06 09:52:06 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/1223b899-5647-42d2-b83e-8efc018245af

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
XpertRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/195436/
Detection(s):
SecuriteInfo.com.Artemis533FE2E3602E.31294.13717.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a service
Creating a window
Connection attempt to an infection source
Sending a TCP request to an infection source
Launching a process
Creating a file in the %temp% directory
Query of malicious DNS domain
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm obfuscated packed
Link:
https://www.filescan.io/uploads/615d6d4fb95458900cdd0b07/reports/0b4f5792-90ba-4bc7-a3e4-6543ad7fe020/overview
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/79edb896-38df-4550-86c1-5c1046addd8d
Result
Threat name:
XpertRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/865399
Signature
Allocates memory in foreign processes
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
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Writes to foreign memory regions
Yara detected Generic Dropper
Yara detected XpertRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 497827 Sample: ns3uyMDRlK.exe Startdate: 06/10/2021 Architecture: WINDOWS Score: 100 52 kapasky-antivirus.firewall-gateway.net 2->52 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 Yara detected XpertRAT 2->62 64 3 other signatures 2->64 9 ns3uyMDRlK.exe 15 5 2->9         started        14 L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe 14 4 2->14         started        16 L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe 2 2->16         started        18 L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe 2 2->18         started        signatures3 process4 dnsIp5 54 store2.gofile.io 31.14.69.10, 443, 49758, 49763 LINKER-ASFR Virgin Islands (BRITISH) 9->54 42 C:\Users\user\AppData\...\ns3uyMDRlK.exe, PE32 9->42 dropped 44 C:\Users\...\ns3uyMDRlK.exe:Zone.Identifier, ASCII 9->44 dropped 46 C:\Users\user\AppData\...\ns3uyMDRlK.exe.log, ASCII 9->46 dropped 80 Writes to foreign memory regions 9->80 82 Allocates memory in foreign processes 9->82 84 Injects a PE file into a foreign processes 9->84 20 ns3uyMDRlK.exe 1 1 9->20         started        86 Machine Learning detection for dropped file 14->86 23 L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe 14->23         started        56 192.168.2.1 unknown unknown 16->56 48 L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe, PE32 16->48 dropped 25 L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe 16->25         started        27 L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe 18->27         started        29 L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe 18->29         started        31 L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe 18->31         started        file6 signatures7 process8 signatures9 72 Detected unpacking (creates a PE file in dynamic memory) 20->72 74 Changes security center settings (notifications, updates, antivirus, firewall) 20->74 76 Machine Learning detection for dropped file 20->76 78 Disables user account control notifications 20->78 33 iexplore.exe 3 7 20->33         started        process10 dnsIp11 50 kapasky-antivirus.firewall-gateway.net 91.121.250.249, 4000 OVHFR France 33->50 40 L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe, PE32 33->40 dropped 66 Creates an undocumented autostart registry key 33->66 68 Creates autostart registry keys with suspicious names 33->68 70 Writes to foreign memory regions 33->70 38 notepad.exe 33->38         started        file12 signatures13 process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-10-06 09:33:09 UTC
AV detection:
9 of 45 (20.00%)
Threat level:
  5/5
Verdict:
malicious
Similar samples:
08927d7955b1be7fd05d81a73057242117540094dda7cca1c162f3aea18c2854
XpertRAT
59b88d9a9cc0b316b6cb94cae1e639933685da63bbbfe6c384acfbc11d430aae
XpertRAT
5c32fd3de4bce60a2529cebc5f47b8a1562ea9bd22549f829b22b0533b32f79b
XpertRAT
a36735377d731d16330587a190a99acbd5a1d9556e066d771268f8b4b6cd3821
XpertRAT
bc2a5e452669de43c4f4533c995b515bace2941ea5b45bb537085b204ee5d54b
XpertRAT
c830683f700f311fe3d533d849cf045b1cbed5ff76debaa6c3dd8f71c0daa535
XpertRAT
ddde7cd1d82b5dee479ac17413690cedd04ad04ee14ae271d590da80e5a2a8bd
XpertRAT
e4b8184869d65a34fb9e0fb43d8b6c252cb153f7139485e3fde6d02cd6898242
XpertRAT
f8e52fa75724eb08c0ec68db6799740ad36c7178b8f0dd7c8b0ee755ff60c653
XpertRAT
+ 5'613 additional samples on MalwareBazaar
Result
Malware family:
xpertrat
Create hunting rule
Score:
  10/10
Tags:
family:xpertrat botnet:test evasion persistence rat trojan
Link:
https://tria.ge/reports/211006-lkfqlaahh2/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System policy modification
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Deletes itself
Windows security modification
Adds policy Run key to start application
UAC bypass
Windows security bypass
XpertRAT
XpertRAT Core Payload
Malware Config
C2 Extraction:
kapasky-antivirus.firewall-gateway.net:4000
Unpacked files
SH256 hash:
1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215
MD5 hash:
533fe2e3602ede540e261fef7e04b711
SHA1 hash:
945e2931b4ca160f9f3025e740cc19e75db25bf6
Link:
https://www.unpac.me/results/50fbddc6-6298-4af1-8041-d4b2ad4aca5d/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/1a55b87ef779/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215

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_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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.

Web download

XpertRAT

Executable exe 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1635439/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1649284/
  
URLhaus
https://urlhaus.abuse.ch/url/1635950/
Cape
Cape
https://www.capesandbox.com/analysis/195436/

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