General
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Target
8ed92a1964a27552705926c929118b576553585874cc19aa4214ee7e810d3b5d
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Size
171KB
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Sample
240313-fkaxfsdc3w
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MD5
762c43c78ccf4d3b35574149b834f7a7
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SHA1
b024585ab11a867a05b97f4de4336c14bb4e54e5
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SHA256
8ed92a1964a27552705926c929118b576553585874cc19aa4214ee7e810d3b5d
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SHA512
83d45a68b4c2a4c9b4ac55a5aa1f66e5dfd84328535f5ada2830592cc7745b6ff39aa57aefe715c9bebab552f569fce1216b8689a85cb3be3d8661e6b2a1f827
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SSDEEP
1536:fwXXLANewOH0Tnw7NVPU18mjkV41JYzHXPxCq9ySC8AW4pNhzjDFS1jRJTNg7A+:fExwOHJN6BjkyQ3P6z8AXBzjDI1ak+
Static task
static1
Behavioral task
behavioral1
Sample
8ed92a1964a27552705926c929118b576553585874cc19aa4214ee7e810d3b5d.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
8ed92a1964a27552705926c929118b576553585874cc19aa4214ee7e810d3b5d.exe
Resource
win10-20240221-en
Malware Config
Extracted
smokeloader
pub1
Extracted
smokeloader
2022
http://trad-einmyus.com/index.php
http://tradein-myus.com/index.php
http://trade-inmyus.com/index.php
Extracted
djvu
http://sajdfue.com/test1/get.php
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extension
.wisz
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offline_id
4p0Nzrg1q0ND5of5Gtp2UBjthSXuE8VxnMrd4vt1
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payload_url
http://sdfjhuz.com/dl/build2.exe
http://sajdfue.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
8.2
7462cf1e49890509e46ee7ab1b511527
https://steamcommunity.com/profiles/76561199651834633
https://t.me/raf6ik
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profile_id_v2
7462cf1e49890509e46ee7ab1b511527
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user_agent
Mozilla/5.0 (Windows NT 10.0; rv:109.0) Gecko/20100101 Firefox/115.0
Extracted
amadey
4.17
http://185.215.113.32
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install_dir
00c07260dc
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install_file
explorgu.exe
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strings_key
461809bd97c251ba0c0c8450c7055f1d
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url_paths
/yandex/index.php
Targets
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Target
8ed92a1964a27552705926c929118b576553585874cc19aa4214ee7e810d3b5d
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Size
171KB
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MD5
762c43c78ccf4d3b35574149b834f7a7
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SHA1
b024585ab11a867a05b97f4de4336c14bb4e54e5
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SHA256
8ed92a1964a27552705926c929118b576553585874cc19aa4214ee7e810d3b5d
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SHA512
83d45a68b4c2a4c9b4ac55a5aa1f66e5dfd84328535f5ada2830592cc7745b6ff39aa57aefe715c9bebab552f569fce1216b8689a85cb3be3d8661e6b2a1f827
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SSDEEP
1536:fwXXLANewOH0Tnw7NVPU18mjkV41JYzHXPxCq9ySC8AW4pNhzjDFS1jRJTNg7A+:fExwOHJN6BjkyQ3P6z8AXBzjDI1ak+
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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Detect Vidar Stealer
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Detected Djvu ransomware
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Downloads MZ/PE file
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Deletes itself
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Executes dropped EXE
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Identifies Wine through registry keys
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
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Loads dropped DLL
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Modifies file permissions
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Uses the VBS compiler for execution
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Adds Run key to start application
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1File and Directory Permissions Modification
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
3Scripting
1Virtualization/Sandbox Evasion
2