8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f

Analysis

max time kernel
151s
max time network
156s
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

8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe
Size

5.9MB
MD5

5d94ec2c9e1a5a48cbc4d82f5961129f
SHA1

71b9fea881448d0c307a484d5c6e9331962903bd
SHA256

8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f
SHA512

a8df474ab58358a805713c771093807c0c03319bb7d3607aba323c7f705c881e3294229f2c6d8c7f5d49f9c163287f72f057083a6071e9a6f7f011ac1eec6147

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:

8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.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:

8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe

Loads dropped DLL 3 IoCs

Processes:

8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe

pid	process
1432	8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe
1432	8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe
1432	8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe

Themida packer 5 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/1432-130-0x0000000000400000-0x0000000000A48000-memory.dmp	themida
behavioral2/memory/1432-131-0x0000000000400000-0x0000000000A48000-memory.dmp	themida
behavioral2/memory/1432-132-0x0000000000400000-0x0000000000A48000-memory.dmp	themida
behavioral2/memory/1432-137-0x0000000000400000-0x0000000000A48000-memory.dmp	themida
behavioral2/memory/1432-138-0x0000000000400000-0x0000000000A48000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.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\8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.exe
"C:\Users\Admin\AppData\Local\Temp\8e4f483813f36549b509bc6fac6037ba6592f0186efee0024a05bae4cd5e8c7f.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:1432

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\nsr72E4.tmp\INetC.dll
Filesize
25KB

MD5
40d7eca32b2f4d29db98715dd45bfac5

SHA1
124df3f617f562e46095776454e1c0c7bb791cc7

SHA256
85e03805f90f72257dd41bfdaa186237218bbb0ec410ad3b6576a88ea11dccb9

SHA512
5fd4f516ce23fb7e705e150d5c1c93fc7133694ba495fb73101674a528883a013a34ab258083aa7ce6072973b067a605158316a4c9159c1b4d765761f91c513d

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsr72E4.tmp\INetC.dll
Filesize
25KB

MD5
40d7eca32b2f4d29db98715dd45bfac5

SHA1
124df3f617f562e46095776454e1c0c7bb791cc7

SHA256
85e03805f90f72257dd41bfdaa186237218bbb0ec410ad3b6576a88ea11dccb9

SHA512
5fd4f516ce23fb7e705e150d5c1c93fc7133694ba495fb73101674a528883a013a34ab258083aa7ce6072973b067a605158316a4c9159c1b4d765761f91c513d

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsr72E4.tmp\xml.dll
Filesize
1.4MB

MD5
e66a3b91188288bbda063862b190c165

SHA1
bc0c0660317ac7b65567fb075c41703689dd8e5e

SHA256
ef857426115169f4cb5b48dcf95417ac82776ae738409737e0fa2716f4fb23d6

SHA512
f265e460db0b88c8a295f5e3b28d1100c1bba1b3a2f07a83726e4aa122eacf5315b6eec9342f1b012013d4915f1e227cb579c462b61b8695239cababa64dc724

Download Submit
memory/1432-130-0x0000000000400000-0x0000000000A48000-memory.dmp

Filesize
6.3MB

Download
memory/1432-131-0x0000000000400000-0x0000000000A48000-memory.dmp

Filesize
6.3MB

Download
memory/1432-132-0x0000000000400000-0x0000000000A48000-memory.dmp

Filesize
6.3MB

Download
memory/1432-136-0x00000000039C1000-0x00000000039C5000-memory.dmp

Filesize
16KB

Download
memory/1432-137-0x0000000000400000-0x0000000000A48000-memory.dmp

Filesize
6.3MB

Download
memory/1432-138-0x0000000000400000-0x0000000000A48000-memory.dmp

Filesize
6.3MB

Download