General
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Target
b5237a3f0b1db945c1fe3f9ba71e3ff2
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Size
335KB
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Sample
230626-q15rwaah2v
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MD5
b5237a3f0b1db945c1fe3f9ba71e3ff2
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SHA1
ba302c3c2490a3b1b04cfbdd76097f2444a54700
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SHA256
239c93b0a44ce8723f181a2ec6d17e9fd9516c17241d8f5b2b0212c6d56a9eb2
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SHA512
9879c4cd6e995916cbd8cb16f6cb3982b48b0ffc5d01479e2c2f3f73ae46a5129893571f94ded70a0ad61a1340c67ef8214018bbc7e1e17fd5395a4f55fb78a1
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SSDEEP
6144:d/sM+uEe4oleWZxrigxyZdXlgdqUh+LoXl4m34fX6Rs+j2exWLsxAFFDwkGklYkv:5sM+uEe30D67j2exWPFxwkiVi
Static task
static1
Behavioral task
behavioral1
Sample
b5237a3f0b1db945c1fe3f9ba71e3ff2.exe
Resource
win7-20230621-en
Behavioral task
behavioral2
Sample
b5237a3f0b1db945c1fe3f9ba71e3ff2.exe
Resource
win10v2004-20230621-en
Malware Config
Extracted
redline
1
dexstat255.xyz:46578
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auth_value
c4805fc19583231a4c5bb64b0e833716
Extracted
systembc
adstat277xm.xyz:4044
demstat377xm.xyz:4044
Extracted
smokeloader
2022
http://serverlogs37.xyz/statweb255/
http://servblog757.xyz/statweb255/
http://dexblog45.xyz/statweb255/
http://admlogs.online/statweb255/
http://blogstat355.xyz/statweb255/
http://blogstatserv25.xyz/statweb255/
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
C:\Users\Admin\Desktop\info.hta
Targets
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Target
b5237a3f0b1db945c1fe3f9ba71e3ff2
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Size
335KB
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MD5
b5237a3f0b1db945c1fe3f9ba71e3ff2
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SHA1
ba302c3c2490a3b1b04cfbdd76097f2444a54700
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SHA256
239c93b0a44ce8723f181a2ec6d17e9fd9516c17241d8f5b2b0212c6d56a9eb2
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SHA512
9879c4cd6e995916cbd8cb16f6cb3982b48b0ffc5d01479e2c2f3f73ae46a5129893571f94ded70a0ad61a1340c67ef8214018bbc7e1e17fd5395a4f55fb78a1
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SSDEEP
6144:d/sM+uEe4oleWZxrigxyZdXlgdqUh+LoXl4m34fX6Rs+j2exWLsxAFFDwkGklYkv:5sM+uEe30D67j2exWPFxwkiVi
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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Modifies boot configuration data using bcdedit
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Renames multiple (481) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Blocklisted process makes network request
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Downloads MZ/PE file
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Modifies Windows Firewall
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Modifies extensions of user files
Ransomware generally changes the extension on encrypted files.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Accesses Microsoft Outlook profiles
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Drops desktop.ini file(s)
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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