2d7405b5d6cd5293b6c81a232edf4f5e98c7e6443152b78b849d619f73e8274a

Analysis

max time kernel
43s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06-02-2023 19:40

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General

Target

modest-menu.exe
Size

14.0MB
MD5

ac062fc9712de55c8c888d6d7fe40c4b
SHA1

2be787ad29f7b783b24ec925153967f4206adacd
SHA256

e388f58cb819d7d603ab71b8909a439ee9e4ac1630c7c64386112a75f2e60966
SHA512

1ad9ecd99df89806fb1b3d7e02343f5297e0379eeef0235bbeb98288788bab9250e20e3c4d3b0a6cbab7a726bfe7dcb1dbd76419d06d7a35d51ad048b5dd450f
SSDEEP

393216:Dl/7prg5lxSqTWgwboGCij0dVMIVibKTWfXuWIQ:R6UqigwboG2JVib7fp

Score

9^/10

evasion themida 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

Processes:

modest-menu.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ modest-menu.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	modest-menu.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

Processes:

modest-menu.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	modest-menu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	modest-menu.exe

Themida packer 7 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1972-54-0x000000013F5A0000-0x0000000141954000-memory.dmp	themida
behavioral1/memory/1972-56-0x000000013F5A0000-0x0000000141954000-memory.dmp	themida
behavioral1/memory/1972-58-0x000000013F5A0000-0x0000000141954000-memory.dmp	themida
behavioral1/memory/1972-59-0x000000013F5A0000-0x0000000141954000-memory.dmp	themida
behavioral1/memory/1972-60-0x000000013F5A0000-0x0000000141954000-memory.dmp	themida
behavioral1/memory/1972-61-0x000000013F5A0000-0x0000000141954000-memory.dmp	themida
behavioral1/memory/1972-62-0x000000013F5A0000-0x0000000141954000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

modest-menu.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA modest-menu.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

modest-menu.exe

pid process

1972 modest-menu.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

modest-menu.exe

pid process

1972 modest-menu.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	modest-menu.exe

pid	process
1972	modest-menu.exe

pid	process
1972	modest-menu.exe

C:\Users\Admin\AppData\Local\Temp\modest-menu.exe
"C:\Users\Admin\AppData\Local\Temp\modest-menu.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
PID:1972

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1972-54-0x000000013F5A0000-0x0000000141954000-memory.dmp

Filesize
35.7MB

Download
memory/1972-56-0x000000013F5A0000-0x0000000141954000-memory.dmp

Filesize
35.7MB

Download
memory/1972-57-0x0000000076F90000-0x0000000077139000-memory.dmp

Filesize
1.7MB

Download
memory/1972-58-0x000000013F5A0000-0x0000000141954000-memory.dmp

Filesize
35.7MB

Download
memory/1972-59-0x000000013F5A0000-0x0000000141954000-memory.dmp

Filesize
35.7MB

Download
memory/1972-60-0x000000013F5A0000-0x0000000141954000-memory.dmp

Filesize
35.7MB

Download
memory/1972-61-0x000000013F5A0000-0x0000000141954000-memory.dmp

Filesize
35.7MB

Download
memory/1972-62-0x000000013F5A0000-0x0000000141954000-memory.dmp

Filesize
35.7MB

Download
memory/1972-63-0x0000000076F90000-0x0000000077139000-memory.dmp

Filesize
1.7MB

Download