General
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Target
1.exe
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Size
813KB
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Sample
240520-j29nwsbb34
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MD5
8a35b10f431e16c1a30d5c837df343e5
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SHA1
8f52cbf4905d0e1fa88d603cb02785107f6c06b8
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SHA256
35fba4ae966fe12c1b9c5dfdcc5b69c2991a412a0f1e5774118e172dbd40ad6e
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SHA512
992392f63e84921ad9aa1cd42a9fe4bd55b305825a54fd9036ae468dacc8e6b11bfcebd8bfea90c02a6d62ec4bc7f3bdebd528b48d33d2f3d3640b533d8ab468
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SSDEEP
12288:XHboTxwbed/QIA8Em9D+7m5BXIz1xYCp6IEJ9eHyg6EtF9/wDfbGRS:38TFQBe9QzgC6PcBdT/wzkS
Static task
static1
Behavioral task
behavioral1
Sample
1.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
1.exe
Resource
win10v2004-20240426-en
Malware Config
Targets
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Target
1.exe
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Size
813KB
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MD5
8a35b10f431e16c1a30d5c837df343e5
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SHA1
8f52cbf4905d0e1fa88d603cb02785107f6c06b8
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SHA256
35fba4ae966fe12c1b9c5dfdcc5b69c2991a412a0f1e5774118e172dbd40ad6e
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SHA512
992392f63e84921ad9aa1cd42a9fe4bd55b305825a54fd9036ae468dacc8e6b11bfcebd8bfea90c02a6d62ec4bc7f3bdebd528b48d33d2f3d3640b533d8ab468
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SSDEEP
12288:XHboTxwbed/QIA8Em9D+7m5BXIz1xYCp6IEJ9eHyg6EtF9/wDfbGRS:38TFQBe9QzgC6PcBdT/wzkS
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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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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Modifies boot configuration data using bcdedit
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XMRig Miner payload
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Blocklisted process makes network request
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Creates new service(s)
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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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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
Execution
Command and Scripting Interpreter
2PowerShell
2System Services
2Service Execution
2Scheduled Task/Job
1Persistence
Create or Modify System Process
3Windows Service
3Boot or Logon Autostart Execution
4Registry Run Keys / Startup Folder
4Event Triggered Execution
1Change Default File Association
1Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Privilege Escalation
Create or Modify System Process
3Windows Service
3Boot or Logon Autostart Execution
4Registry Run Keys / Startup Folder
4Event Triggered Execution
1Change Default File Association
1Scheduled Task/Job
1Defense Evasion
Modify Registry
6Virtualization/Sandbox Evasion
1Impair Defenses
1Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1Install Root Certificate
1