b156409f4fce371d73516dd46ea70166869f96ae8422d51389376cea77f51643

Analysis

max time kernel
142s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20220722-en
resource tags

arch:x64arch:x86image:win10v2004-20220722-enlocale:en-usos:windows10-2004-x64system
submitted
02-08-2022 12:51

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General

Target

b156409f4fce371d73516dd46ea70166869f96ae8422d51389376cea77f51643.exe
Size

5.9MB
MD5

aabd2598e548ceabe8182ced634dfef3
SHA1

ae6843378d520c58e42742caf28728d3c516755f
SHA256

b156409f4fce371d73516dd46ea70166869f96ae8422d51389376cea77f51643
SHA512

40455b3f63b4d0b0a939d023a8a6112b2371f7084dab741ca969faf6f5cb64aa49af306ef36aacc0ccb9964b1d51515441acbdfe6177e9958afd1e8b8b9f38f4

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:

b156409f4fce371d73516dd46ea70166869f96ae8422d51389376cea77f51643.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ b156409f4fce371d73516dd46ea70166869f96ae8422d51389376cea77f51643.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	b156409f4fce371d73516dd46ea70166869f96ae8422d51389376cea77f51643.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:

b156409f4fce371d73516dd46ea70166869f96ae8422d51389376cea77f51643.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b156409f4fce371d73516dd46ea70166869f96ae8422d51389376cea77f51643.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b156409f4fce371d73516dd46ea70166869f96ae8422d51389376cea77f51643.exe

Loads dropped DLL 3 IoCs

Processes:

b156409f4fce371d73516dd46ea70166869f96ae8422d51389376cea77f51643.exe

pid	process
4928	b156409f4fce371d73516dd46ea70166869f96ae8422d51389376cea77f51643.exe
4928	b156409f4fce371d73516dd46ea70166869f96ae8422d51389376cea77f51643.exe
4928	b156409f4fce371d73516dd46ea70166869f96ae8422d51389376cea77f51643.exe

Themida packer 5 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/4928-132-0x0000000000400000-0x0000000000A48000-memory.dmp	themida
behavioral2/memory/4928-133-0x0000000000400000-0x0000000000A48000-memory.dmp	themida
behavioral2/memory/4928-134-0x0000000000400000-0x0000000000A48000-memory.dmp	themida
behavioral2/memory/4928-139-0x0000000000400000-0x0000000000A48000-memory.dmp	themida
behavioral2/memory/4928-140-0x0000000000400000-0x0000000000A48000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

b156409f4fce371d73516dd46ea70166869f96ae8422d51389376cea77f51643.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	b156409f4fce371d73516dd46ea70166869f96ae8422d51389376cea77f51643.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

C:\Users\Admin\AppData\Local\Temp\b156409f4fce371d73516dd46ea70166869f96ae8422d51389376cea77f51643.exe
"C:\Users\Admin\AppData\Local\Temp\b156409f4fce371d73516dd46ea70166869f96ae8422d51389376cea77f51643.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
PID:4928

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

C:\Users\Admin\AppData\Local\Temp\nsz788C.tmp\INetC.dll
Filesize
25KB

MD5
40d7eca32b2f4d29db98715dd45bfac5

SHA1
124df3f617f562e46095776454e1c0c7bb791cc7

SHA256
85e03805f90f72257dd41bfdaa186237218bbb0ec410ad3b6576a88ea11dccb9

SHA512
5fd4f516ce23fb7e705e150d5c1c93fc7133694ba495fb73101674a528883a013a34ab258083aa7ce6072973b067a605158316a4c9159c1b4d765761f91c513d

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsz788C.tmp\INetC.dll
Filesize
25KB

MD5
40d7eca32b2f4d29db98715dd45bfac5

SHA1
124df3f617f562e46095776454e1c0c7bb791cc7

SHA256
85e03805f90f72257dd41bfdaa186237218bbb0ec410ad3b6576a88ea11dccb9

SHA512
5fd4f516ce23fb7e705e150d5c1c93fc7133694ba495fb73101674a528883a013a34ab258083aa7ce6072973b067a605158316a4c9159c1b4d765761f91c513d

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsz788C.tmp\xml.dll
Filesize
1.4MB

MD5
5dfb4683272bf5123926a114fbb437d6

SHA1
27dc86582797f4328a9bb4553f53a72d85da2d26

SHA256
b59a734e032530a8dc148b9d70d97cce6aac2bc06a62d6cc53c74e19eb4ae7a9

SHA512
ecf33397531008a6b5c636f097e5fbbc372fca0fcb8c2dfefc731ecf81b609d75d748a3cd7e1fe031623dd9237b6931e0977abc084b74b079b33f7e117c5754e

Download Submit
memory/4928-132-0x0000000000400000-0x0000000000A48000-memory.dmp

Filesize
6.3MB

Download
memory/4928-133-0x0000000000400000-0x0000000000A48000-memory.dmp

Filesize
6.3MB

Download
memory/4928-134-0x0000000000400000-0x0000000000A48000-memory.dmp

Filesize
6.3MB

Download
memory/4928-138-0x0000000001141000-0x0000000001145000-memory.dmp

Filesize
16KB

Download
memory/4928-139-0x0000000000400000-0x0000000000A48000-memory.dmp

Filesize
6.3MB

Download
memory/4928-140-0x0000000000400000-0x0000000000A48000-memory.dmp

Filesize
6.3MB

Download