MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8bacfebe1c6657db3cd2918c7046b2dfc4646b6204f20f509e3804d82d5fb18a. 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


KeyBase


Vendor detections: 6


Intelligence 6 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8bacfebe1c6657db3cd2918c7046b2dfc4646b6204f20f509e3804d82d5fb18a
SHA3-384 hash: dfd72e7bc712d868de6132776284008b9eb1c6e5ca6b78bbb88cd2d54a44dcdc8fc16ec6e70964d4b4811e566c1dc5e3
SHA1 hash: aaee90129b1f0fd8e607b371c73e7ee92997212a
MD5 hash: 0a9321dce557fb427af1fa3900de3320
humanhash: monkey-oscar-ack-diet
File name:invoice.exe
Download: download sample
Signature KeyBase
Create hunting rule
File size:256'000 bytes
First seen:2020-08-08 18:02:18 UTC
Last seen:2020-08-09 10:29:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:DoIgiWpiA/WdgRvEapTw1DzZYnu6O9V5ZehMxCE0/:xgrpiAOyRcapU15IWb5Zehv/
Threatray 198 similar samples on MalwareBazaar
TLSH 5C44F17927AEDF79CADD16FC605E32801378DD466282E72ADE1634E72CB538018C4767
Reporter abuse_ch
Tags:exe KeyBase


Avatar
abuse_ch
Malspam distributing KeyBase:

HELO: centauro.inicia.es
Sending IP: 212.166.70.235
From: FUNDING CONNECTION <info@fundingconnection.co.za>
Subject: COVID-19 RELIEF FUNDING
Attachment: SA Covid-19 Funding Connection.xlsm

Keybase payload URL:
http://shopphongtinh.com/invoice.exe

KeyBase C2:
http://shopphongtinh.com/key/panel/base/post.php

Intelligence

File Origin
# of uploads :
4
# of downloads :
151
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/42217/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.405.12656.13724.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file
Result
Threat name:
Unknown
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/415905
Signature
Executable has a suspicious name (potential lure to open the executable)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Passes username and password via HTTP get
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to steal Instant Messenger accounts or passwords
Uses schtasks.exe or at.exe to add and modify task schedules
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8bacfebe1c6657db3cd2918c7046b2dfc4646b6204f20f509e3804d82d5fb18a/
Threat name:
ByteCode-MSIL.Trojan.Masslogger
Create hunting rule
Status:
Malicious
First seen:
2020-08-08 18:04:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rowp5pq4mzl5wpgssggharvs37cgi23catza6ue6hacnqlk7wgfa._file
Verdict:
malicious
Similar samples:
038e01d9ad87f69fbf3caf7bde273bb1e6ba2c5445097ff9e0e59c077268a43a
KeyBase
05ca2e91487fabbc48268832f39819dd0bc562b8cd4c3561585f45eb3ed6e683
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36b3044a2e615b0f530f834734bde33e860ca706b0b80e1b73d9c83be186ade2
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3e4bbaedb75ecb1dba42d262fbb6c051d30dddbf7d10ceac4086836b67f1dd3a
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81710165643580b427259c7069eef6bcfba0ed113f1707edcdf166521cb87d28
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9047151fe524a34dffeacd46eba66b4b0a87beb7f3e513ba8e5c6ca367ccc505
KeyBase
a2e0a67287a2ee1bc03f7428f390431ef59f2063e03f2cb75a5ddeb7e5211044
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a6d44377671c37e4ef84efae15b17efbcdd03a8b5af2704e74f75126f333196f
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daccd93e099119d1c54b6d855d0a9db24e1ebd8eea974badb1ff6d8f0e01865f
KeyBase
e710739997bbb4c0aa3dbbc48746cfd22a223b1d136fcdef77817170ed3f3850
KeyBase
+ 188 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  9/10
Tags:
evasion
Link:
https://tria.ge/reports/200808-7wt1b5sjme/
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of SetThreadContext
Suspicious use of SetThreadContext
Maps connected drives based on registry
Maps connected drives based on registry
Checks BIOS information in registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Looks for VirtualBox Guest Additions in registry
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:KeyBase
Create hunting rule
Author:@bartblaze
Description:Identifies KeyBase aka Kibex.
Rule name:MALW_KeyBase
Create hunting rule
Author:@bartblaze
Description:Identifies KeyBase aka Kibex.
Rule name:win_keybase_w0
Create hunting rule
Author:@bartblaze
Description:Identifies KeyBase aka Kibex.

File information

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

Malspam

KeyBase

Excel file xlsm a02258ba10419bc678e832f3224dc6340e22f567f7b8ba1d344a5e5213d129a1

KeyBase

Executable exe 8bacfebe1c6657db3cd2918c7046b2dfc4646b6204f20f509e3804d82d5fb18a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/427837/
  
Dropped by
MD5 9df29e8497f08ab537996ee90017ee8a
  
Dropped by
SHA256 a02258ba10419bc678e832f3224dc6340e22f567f7b8ba1d344a5e5213d129a1
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/42217/

Comments