55d0f43f870d3b05ad854d229889cf31b7bcce76f1d16ccdfa4fdd1cadd7397f

Analysis

max time kernel
143s
max time network
168s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
02-08-2022 12:51

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General

Target

55d0f43f870d3b05ad854d229889cf31b7bcce76f1d16ccdfa4fdd1cadd7397f.exe
Size

5.9MB
MD5

248fd982645c9ebed8ba184c91f1d225
SHA1

747bbff460ed2090fdabdf3fb96a122a6522c942
SHA256

55d0f43f870d3b05ad854d229889cf31b7bcce76f1d16ccdfa4fdd1cadd7397f
SHA512

63b1c93014acb74ae3f5c2445729c7e575634eb700263dec557f655ddeafe9f5b56474bdc3ebefd357d06d77943a40ac99b10336da48468c1be4fad0193e02a7

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:

55d0f43f870d3b05ad854d229889cf31b7bcce76f1d16ccdfa4fdd1cadd7397f.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 55d0f43f870d3b05ad854d229889cf31b7bcce76f1d16ccdfa4fdd1cadd7397f.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	55d0f43f870d3b05ad854d229889cf31b7bcce76f1d16ccdfa4fdd1cadd7397f.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:

55d0f43f870d3b05ad854d229889cf31b7bcce76f1d16ccdfa4fdd1cadd7397f.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	55d0f43f870d3b05ad854d229889cf31b7bcce76f1d16ccdfa4fdd1cadd7397f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	55d0f43f870d3b05ad854d229889cf31b7bcce76f1d16ccdfa4fdd1cadd7397f.exe

Loads dropped DLL 3 IoCs

Processes:

55d0f43f870d3b05ad854d229889cf31b7bcce76f1d16ccdfa4fdd1cadd7397f.exe

pid	process
4940	55d0f43f870d3b05ad854d229889cf31b7bcce76f1d16ccdfa4fdd1cadd7397f.exe
4940	55d0f43f870d3b05ad854d229889cf31b7bcce76f1d16ccdfa4fdd1cadd7397f.exe
4940	55d0f43f870d3b05ad854d229889cf31b7bcce76f1d16ccdfa4fdd1cadd7397f.exe

Themida packer 5 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/4940-130-0x0000000000400000-0x0000000000A45000-memory.dmp	themida
behavioral2/memory/4940-131-0x0000000000400000-0x0000000000A45000-memory.dmp	themida
behavioral2/memory/4940-132-0x0000000000400000-0x0000000000A45000-memory.dmp	themida
behavioral2/memory/4940-137-0x0000000000400000-0x0000000000A45000-memory.dmp	themida
behavioral2/memory/4940-138-0x0000000000400000-0x0000000000A45000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

55d0f43f870d3b05ad854d229889cf31b7bcce76f1d16ccdfa4fdd1cadd7397f.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	55d0f43f870d3b05ad854d229889cf31b7bcce76f1d16ccdfa4fdd1cadd7397f.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\55d0f43f870d3b05ad854d229889cf31b7bcce76f1d16ccdfa4fdd1cadd7397f.exe
"C:\Users\Admin\AppData\Local\Temp\55d0f43f870d3b05ad854d229889cf31b7bcce76f1d16ccdfa4fdd1cadd7397f.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:4940

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\nsbD900.tmp\INetC.dll
Filesize
25KB

MD5
40d7eca32b2f4d29db98715dd45bfac5

SHA1
124df3f617f562e46095776454e1c0c7bb791cc7

SHA256
85e03805f90f72257dd41bfdaa186237218bbb0ec410ad3b6576a88ea11dccb9

SHA512
5fd4f516ce23fb7e705e150d5c1c93fc7133694ba495fb73101674a528883a013a34ab258083aa7ce6072973b067a605158316a4c9159c1b4d765761f91c513d

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsbD900.tmp\INetC.dll
Filesize
25KB

MD5
40d7eca32b2f4d29db98715dd45bfac5

SHA1
124df3f617f562e46095776454e1c0c7bb791cc7

SHA256
85e03805f90f72257dd41bfdaa186237218bbb0ec410ad3b6576a88ea11dccb9

SHA512
5fd4f516ce23fb7e705e150d5c1c93fc7133694ba495fb73101674a528883a013a34ab258083aa7ce6072973b067a605158316a4c9159c1b4d765761f91c513d

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsbD900.tmp\xml.dll
Filesize
1.3MB

MD5
d53dc96ab043c753e5b5945717d66b72

SHA1
99f41eecd65ca70678e70114b9dcf1853f61cb1e

SHA256
e9b46aa4d840b3fcd765e6bdeb4f633014dc055e97df7770cc4e0a46bedd119b

SHA512
6f7e432eeb0c89581ab706d0cf406e60883036e7ffd7d0da6a7c857028c5405c6c26e2b977bfcfa2f5e039478277d09e743d97c430a0599d0e875dcee3f2f513

Download Submit
memory/4940-130-0x0000000000400000-0x0000000000A45000-memory.dmp

Filesize
6.3MB

Download
memory/4940-131-0x0000000000400000-0x0000000000A45000-memory.dmp

Filesize
6.3MB

Download
memory/4940-132-0x0000000000400000-0x0000000000A45000-memory.dmp

Filesize
6.3MB

Download
memory/4940-136-0x0000000001141000-0x0000000001145000-memory.dmp

Filesize
16KB

Download
memory/4940-137-0x0000000000400000-0x0000000000A45000-memory.dmp

Filesize
6.3MB

Download
memory/4940-138-0x0000000000400000-0x0000000000A45000-memory.dmp

Filesize
6.3MB

Download