177bd385c98d209a6bb678043c87f65c2f8c4e203d777ea61fc38dfa7f6e1a93

Analysis

max time kernel
10s
max time network
8s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
27-09-2024 07:42

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General

Target

FL64.exe
Size

13.7MB
MD5

45707da9e74c99056b4f7742df1324e8
SHA1

c9da0dc1cf5b4b8b441fa1ec009973cce9dcce4d
SHA256

177bd385c98d209a6bb678043c87f65c2f8c4e203d777ea61fc38dfa7f6e1a93
SHA512

c45e2d37f99f265b8c00b291593c0e53a92634f452be2c750052c576fb1a4337aaa019c1fe2a110db54914ece4228de4bcd3489fbcf927ff5292241523b939bd
SSDEEP

393216:qIG8bNZPSXUqlFWBHmh1mnclubQGOr+JUSWspb:OYNlUUnmh1AxbdV

Score

9^/10

evasion trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	FL64.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	FL64.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	FL64.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	FL64.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1468	FL64.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1468	FL64.exe
1468	FL64.exe
1468	FL64.exe
1468	FL64.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1468	FL64.exe

C:\Users\Admin\AppData\Local\Temp\FL64.exe
"C:\Users\Admin\AppData\Local\Temp\FL64.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1468-0-0x00007FF6D3640000-0x00007FF6D4E83000-memory.dmp

Filesize
24.3MB

Download
memory/1468-1-0x00007FFA7CF38000-0x00007FFA7CF3A000-memory.dmp

Filesize
8KB

Download
memory/1468-3-0x00007FF6D3640000-0x00007FF6D4E83000-memory.dmp

Filesize
24.3MB

Download
memory/1468-2-0x00007FF6D3640000-0x00007FF6D4E83000-memory.dmp

Filesize
24.3MB

Download
memory/1468-4-0x00007FF6D3640000-0x00007FF6D4E83000-memory.dmp

Filesize
24.3MB

Download
memory/1468-5-0x00007FF6D3640000-0x00007FF6D4E83000-memory.dmp

Filesize
24.3MB

Download
memory/1468-6-0x00007FF6D3640000-0x00007FF6D4E83000-memory.dmp

Filesize
24.3MB

Download
memory/1468-8-0x00007FF6D3640000-0x00007FF6D4E83000-memory.dmp

Filesize
24.3MB

Download
memory/1468-7-0x00007FF6D3640000-0x00007FF6D4E83000-memory.dmp

Filesize
24.3MB

Download
memory/1468-9-0x00007FFA7CE90000-0x00007FFA7D06B000-memory.dmp

Filesize
1.9MB

Download
memory/1468-10-0x00007FF6D3640000-0x00007FF6D4E83000-memory.dmp

Filesize
24.3MB

Download