General
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Target
file
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Size
131KB
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Sample
220827-kvfmxagfem
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MD5
947cd819b7dd277313df26e6340fc5de
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SHA1
728cec26b715b82f87cd7442adf94ab95374b636
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SHA256
6b00294a7e93953699ba6fb08a03ade46c71c6ea8d7da2d0c443d3c707fcb1c8
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SHA512
c34e1a83c38c69e674797f88561f4983abb0cb75581d0b4b0f32b2861166cf2f664849593c5cda217b8f2a14cfbd47aa3df50c57415908ac9903485a8cced93d
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SSDEEP
3072:8JrXyxd9kOSsklwxX2b+ulHXSRNvz5cKa43Lqbmhwmi8:8XQd9kmlxX2b+u5XqNr5n3mbmh
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
Malware Config
Extracted
djvu
http://acacaca.org/lancer/get.php
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extension
.qqkk
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offline_id
0MVuBxT6o3dUivEUdhCKPfN5ljxbYptbzrFZvst1
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payload_url
http://rgyui.top/dl/build2.exe
http://acacaca.org/files/1/build3.exe
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ransomnote
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Extracted
raccoon
c9e52bace899d26fdf3a806e1c0205e5
http://185.112.83.116/
Extracted
socelars
https://hueduy.s3.eu-west-1.amazonaws.com/nbsdg818/
Targets
-
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Target
file
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Size
131KB
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MD5
947cd819b7dd277313df26e6340fc5de
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SHA1
728cec26b715b82f87cd7442adf94ab95374b636
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SHA256
6b00294a7e93953699ba6fb08a03ade46c71c6ea8d7da2d0c443d3c707fcb1c8
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SHA512
c34e1a83c38c69e674797f88561f4983abb0cb75581d0b4b0f32b2861166cf2f664849593c5cda217b8f2a14cfbd47aa3df50c57415908ac9903485a8cced93d
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SSDEEP
3072:8JrXyxd9kOSsklwxX2b+ulHXSRNvz5cKa43Lqbmhwmi8:8XQd9kmlxX2b+u5XqNr5n3mbmh
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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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Detected Djvu ransomware
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Detects Smokeloader packer
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Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
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Socelars payload
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Suspicious use of NtCreateUserProcessOtherParentProcess
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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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Executes dropped EXE
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Modifies Windows Firewall
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Loads dropped DLL
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Modifies file permissions
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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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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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 Matrix ATT&CK v6
Persistence
Modify Existing Service
1Registry Run Keys / Startup Folder
1Scheduled Task
1Defense Evasion
Virtualization/Sandbox Evasion
1File Permissions Modification
1Modify Registry
1