General
-
Target
573bc9bb0f24ff5046e164f2139777f6.exe
-
Size
176KB
-
Sample
210826-ysvhdb7nhj
-
MD5
573bc9bb0f24ff5046e164f2139777f6
-
SHA1
830d567fc9217e49a7066fdf0e8fe68fc757c3fe
-
SHA256
4170bbfd45d3db9b8337b1259e3bdc33840201b6c8ba1f69efa65ac41020445f
-
SHA512
87d41132b0ed6907b5918a9b250135cef95cc9619ca359f8d1b97e053144844c63c3385f573081a2ca3d4a2d7ad1c84582e40ef10d74351c5d34dd9c1a96c1bb
Static task
static1
Behavioral task
behavioral1
Sample
573bc9bb0f24ff5046e164f2139777f6.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
573bc9bb0f24ff5046e164f2139777f6.exe
Resource
win10v20210410
Malware Config
Extracted
C:\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT
buran
Extracted
smokeloader
2020
http://readinglistforaugust1.xyz/
http://readinglistforaugust2.xyz/
http://readinglistforaugust3.xyz/
http://readinglistforaugust4.xyz/
http://readinglistforaugust5.xyz/
http://readinglistforaugust6.xyz/
http://readinglistforaugust7.xyz/
http://readinglistforaugust8.xyz/
http://readinglistforaugust9.xyz/
http://readinglistforaugust10.xyz/
http://readinglistforaugust1.site/
http://readinglistforaugust2.site/
http://readinglistforaugust3.site/
http://readinglistforaugust4.site/
http://readinglistforaugust5.site/
http://readinglistforaugust6.site/
http://readinglistforaugust7.site/
http://readinglistforaugust8.site/
http://readinglistforaugust9.site/
http://readinglistforaugust10.site/
http://readinglistforaugust1.club/
http://readinglistforaugust2.club/
http://readinglistforaugust3.club/
http://readinglistforaugust4.club/
http://readinglistforaugust5.club/
http://readinglistforaugust6.club/
http://readinglistforaugust7.club/
http://readinglistforaugust8.club/
http://readinglistforaugust9.club/
http://readinglistforaugust10.club/
Extracted
raccoon
fe582536ec580228180f270f7cb80a867860e010
-
url4cnc
https://telete.in/xylichanjk
Extracted
C:\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT
buran
Targets
-
-
Target
573bc9bb0f24ff5046e164f2139777f6.exe
-
Size
176KB
-
MD5
573bc9bb0f24ff5046e164f2139777f6
-
SHA1
830d567fc9217e49a7066fdf0e8fe68fc757c3fe
-
SHA256
4170bbfd45d3db9b8337b1259e3bdc33840201b6c8ba1f69efa65ac41020445f
-
SHA512
87d41132b0ed6907b5918a9b250135cef95cc9619ca359f8d1b97e053144844c63c3385f573081a2ca3d4a2d7ad1c84582e40ef10d74351c5d34dd9c1a96c1bb
-
Buran
Ransomware-as-a-service based on the VegaLocker family first identified in 2019.
-
Suspicious use of NtCreateProcessExOtherParentProcess
-
Identifies VirtualBox via ACPI registry values (likely anti-VM)
-
XMRig Miner Payload
-
Creates new service(s)
-
Downloads MZ/PE file
-
Executes dropped EXE
-
Modifies Windows Firewall
-
Modifies extensions of user files
Ransomware generally changes the extension on encrypted files.
-
Sets service image path in registry
-
Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
-
Deletes itself
-
Loads dropped DLL
-
Accesses cryptocurrency files/wallets, possible credential harvesting
-
Adds Run key to start application
-
Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
-
Legitimate hosting services abused for malware hosting/C2
-
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
-
Drops file in System32 directory
-
Suspicious use of NtSetInformationThreadHideFromDebugger
-
Suspicious use of SetThreadContext
-
MITRE ATT&CK Enterprise v6
Persistence
Modify Existing Service
1New Service
1Registry Run Keys / Startup Folder
2Defense Evasion
Disabling Security Tools
1File Deletion
2Install Root Certificate
1Modify Registry
4Virtualization/Sandbox Evasion
1Web Service
1