General
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Target
fc44a0e8161907e73f2e7f0ee5b264a8e2c78f5af3437c4cb25341661da8d813.exe
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Size
1.8MB
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Sample
240525-cmc8taba3w
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MD5
7ff8c26a36f5a4566990745dff1594f3
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SHA1
5d73bbd168fb9b1e43051340a415d95f28c40f4d
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SHA256
fc44a0e8161907e73f2e7f0ee5b264a8e2c78f5af3437c4cb25341661da8d813
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SHA512
d97be45d80e85722e74b44aeff834b2ccc219520c7d1632452c4a361b9dea59439f0f0ba27af6444132147c7bc30ccd5582bb0a0e246baf00f61e16195706b2d
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SSDEEP
24576:jynjN3fi9dEoZR814OEQjls30eTFxmT4i8eMOq52eOXuq01dKqOF7:ujN3CdJ81nEQhs30eWuqsrOF7
Static task
static1
Behavioral task
behavioral1
Sample
fc44a0e8161907e73f2e7f0ee5b264a8e2c78f5af3437c4cb25341661da8d813.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
fc44a0e8161907e73f2e7f0ee5b264a8e2c78f5af3437c4cb25341661da8d813.exe
Resource
win10v2004-20240508-en
Malware Config
Targets
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Target
fc44a0e8161907e73f2e7f0ee5b264a8e2c78f5af3437c4cb25341661da8d813.exe
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Size
1.8MB
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MD5
7ff8c26a36f5a4566990745dff1594f3
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SHA1
5d73bbd168fb9b1e43051340a415d95f28c40f4d
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SHA256
fc44a0e8161907e73f2e7f0ee5b264a8e2c78f5af3437c4cb25341661da8d813
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SHA512
d97be45d80e85722e74b44aeff834b2ccc219520c7d1632452c4a361b9dea59439f0f0ba27af6444132147c7bc30ccd5582bb0a0e246baf00f61e16195706b2d
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SSDEEP
24576:jynjN3fi9dEoZR814OEQjls30eTFxmT4i8eMOq52eOXuq01dKqOF7:ujN3CdJ81nEQhs30eWuqsrOF7
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Modifies firewall policy service
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PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
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Detects executables (downlaoders) containing URLs to raw contents of a paste
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Detects executables embedding registry key / value combination indicative of disabling Windows Defender features
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Detects executables packed with Themida
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Detects ransomware indicator
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Gandcrab Payload
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Modifies boot configuration data using bcdedit
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Blocklisted process makes network request
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Downloads MZ/PE file
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Drops file in Drivers directory
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Modifies Installed Components in the registry
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Sets service image path in registry
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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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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Modifies system executable filetype association
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Registers COM server for autorun
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Unexpected DNS network traffic destination
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
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Adds Run key to start application
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Checks for any installed AV software in registry
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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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Drops Chrome extension
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Drops desktop.ini file(s)
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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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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Maps connected drives based on registry
Disk information is often read in order to detect sandboxing environments.
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Drops file in System32 directory
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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 v13
Persistence
Create or Modify System Process
1Windows Service
1Boot or Logon Autostart Execution
4Registry Run Keys / Startup Folder
4Event Triggered Execution
1Change Default File Association
1Browser Extensions
1Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Boot or Logon Autostart Execution
4Registry Run Keys / Startup Folder
4Event Triggered Execution
1Change Default File Association
1Scheduled Task/Job
1Defense Evasion
Modify Registry
8Impair Defenses
1Disable or Modify Tools
1Virtualization/Sandbox Evasion
1Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1Install Root Certificate
1