MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1c272538e67cbf0745b5c33f4c01e561ba358d56426214dad8c39167a8d92db. 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: 12


Intelligence 12 IOCs 1 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f1c272538e67cbf0745b5c33f4c01e561ba358d56426214dad8c39167a8d92db
SHA3-384 hash: 79daf823040acf4aab0e36e7c7c2eccbfe686da7400ba9646a70c39208ed620a6a28dcc89a5c0853c1455abe5544b0e2
SHA1 hash: 2264013df701a7f13eb36337990893f89fa14a05
MD5 hash: 1930ef3293c2754bd6ba9af70da667f6
humanhash: saturn-eighteen-bulldog-pizza
File name:gunzipped.exe
Download: download sample
Signature XpertRAT
Create hunting rule
File size:364'032 bytes
First seen:2021-12-23 08:35:22 UTC
Last seen:2021-12-23 11:07:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:msh/xf+rrQg1XFBvtBOZAqJJ2LIgkwUloSCU6VAjLj23hfYeyZmcZk:bBxfuQsBkXJMnSoSCUk8j2RfKAcq
TLSH T1F57423307268B178C77B0BF16934E784073662B96DAB6F64F28C48795731B442E93397
Reporter abuse_ch
Tags:exe XpertRAT


Avatar
abuse_ch
XpertRAT C2:
23.105.131.209:5643

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
23.105.131.209:5643 https://threatfox.abuse.ch/ioc/281651/

Intelligence

File Origin
# of uploads :
2
# of downloads :
180
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
gunzipped.exe
Verdict:
Malicious activity
Analysis date:
2021-12-23 08:38:53 UTC
Tags:
trojan rat xpertrat stealer
Link:
https://app.any.run/tasks/3588cc43-7d4a-4b30-a6f4-4f42e71b378c

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/215906/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1140.19215.31514.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Creating a file
Сreating synchronization primitives
Launching a process
Searching for synchronization primitives
Changing a file
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
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61c434f5ec6c6c14a9ec10ab/reports/397949aa-cceb-4423-a526-fad7a8d301ff/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1c68f009-85cc-4da0-bf05-491ffd744816
Result
Threat name:
MailPassView XpertRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/911901
Signature
.NET source code contains potential unpacker
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
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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: 544378 Sample: gunzipped.exe Startdate: 23/12/2021 Architecture: WINDOWS Score: 100 56 Malicious sample detected (through community Yara rule) 2->56 58 Yara detected MailPassView 2->58 60 Yara detected XpertRAT 2->60 62 5 other signatures 2->62 9 gunzipped.exe 3 2->9         started        12 F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4.exe 3 2->12         started        14 F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4.exe 2 2->14         started        16 F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4.exe 2 2->16         started        process3 signatures4 68 Detected unpacking (creates a PE file in dynamic memory) 9->68 18 gunzipped.exe 1 1 9->18         started        21 gunzipped.exe 9->21         started        70 Injects a PE file into a foreign processes 12->70 23 F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4.exe 1 12->23         started        25 F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4.exe 1 14->25         started        27 F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4.exe 1 16->27         started        process5 signatures6 64 Changes security center settings (notifications, updates, antivirus, firewall) 18->64 66 Disables user account control notifications 18->66 29 iexplore.exe 3 9 18->29         started        34 iexplore.exe 18->34         started        process7 dnsIp8 54 23.105.131.209, 49760, 49761, 49762 LEASEWEB-USA-NYC-11US United States 29->54 50 F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4.exe, PE32 29->50 dropped 52 C:\...\F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4, data 29->52 dropped 72 Creates an undocumented autostart registry key 29->72 74 Creates autostart registry keys with suspicious names 29->74 36 iexplore.exe 29->36         started        38 iexplore.exe 29->38         started        40 iexplore.exe 2 29->40         started        44 4 other processes 29->44 42 WerFault.exe 34->42         started        file9 signatures10 process11 process12 46 WerFault.exe 36->46         started        48 WerFault.exe 38->48         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f1c272538e67cbf0745b5c33f4c01e561ba358d56426214dad8c39167a8d92db/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-23 08:36:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6hbheu4om7f7a5c3lqz7jqa6kyn2gwgvmqtcctnnrq4rm6unslnq._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/211223-khk2vshda9/
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
Program crash
Windows security modification
Adds policy Run key to start application
UAC bypass
Windows security bypass
XpertRAT
Unpacked files
SH256 hash:
3472b48a49c216eba75655ee1c7d33e39ba6ec040f1e868ac4dd6f8ea102f665
MD5 hash:
cac6e9284b369321e537b5dab8ce053c
SHA1 hash:
d1fb60bfe319a7a00509d7797504651d2956c54e
Detections:
win_xpertrat_a0
Create hunting rule
win_xpertrat_auto
Create hunting rule
Link:
https://www.unpac.me/results/6faebb8a-5e0a-45b3-9334-3b4912952ff7/
SH256 hash:
2d0d61d9c200415984ac8fb6857a5499a7dbd4b2dda08d27d5aefe53a34b1f8d
MD5 hash:
86c9bda3ae4ff998f6c1bae71c6ee9ce
SHA1 hash:
4a539295dd523db824dcf0d042468389b60ce867
Link:
https://www.unpac.me/results/6faebb8a-5e0a-45b3-9334-3b4912952ff7/
SH256 hash:
ea2e953c063228044926ebae4927de00cab854864cae96ada0cd35c6a3e7b62c
MD5 hash:
fb74a61d0c164eb18ef5103c126bf185
SHA1 hash:
bfe6eab7ca6fafbb98e70ea1ae8f58a1461aa263
Link:
https://www.unpac.me/results/6faebb8a-5e0a-45b3-9334-3b4912952ff7/
SH256 hash:
55535d7416e19740ddca81496bcfb9ea7f4ec52735e01d43880f6359f92b63be
MD5 hash:
42c16475606875decc737cb31dfb2cbb
SHA1 hash:
28db67a9058bbebedbd28819bce871cdeb62f968
Link:
https://www.unpac.me/results/6faebb8a-5e0a-45b3-9334-3b4912952ff7/
SH256 hash:
34923463a0ccc7a216c80236ed873a3fc430dd17bcc81105f6804420bd377dd1
MD5 hash:
0c9c67b699e9093e3520e60844b7a201
SHA1 hash:
6d44155f9a096908a48e1b4cb6ee5b7e426b9fac
Detections:
win_xpertrat_a0
Create hunting rule
win_xpertrat_auto
Create hunting rule
Link:
https://www.unpac.me/results/6faebb8a-5e0a-45b3-9334-3b4912952ff7/
SH256 hash:
f1c272538e67cbf0745b5c33f4c01e561ba358d56426214dad8c39167a8d92db
MD5 hash:
1930ef3293c2754bd6ba9af70da667f6
SHA1 hash:
2264013df701a7f13eb36337990893f89fa14a05
Link:
https://www.unpac.me/results/6faebb8a-5e0a-45b3-9334-3b4912952ff7/
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/f1c272538e67cbf0745b5c33f4c01e561ba358d56426214dad8c39167a8d92db

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/215906/

Comments