f66863c2345452a58ba5380f393471836e66a8d8247ce320ce241cdb84808f7d

Analysis

max time kernel
53s
max time network
118s
platform
windows7_x64
resource
win7-20220715-en
resource tags

arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
submitted
02-08-2022 12:50

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General

Target

f66863c2345452a58ba5380f393471836e66a8d8247ce320ce241cdb84808f7d.exe
Size

5.9MB
MD5

9b9dcdc20109ab88b80fc94d15efb636
SHA1

fbb772787cae0ad52540d3a0f7847be6432a7a2c
SHA256

f66863c2345452a58ba5380f393471836e66a8d8247ce320ce241cdb84808f7d
SHA512

2df42f5a3cbcb3adc33838e72d3c0dd381372a92aa3af2c221a6c3c6b536cadfd12d594523338d78aa5120869b62a5e1607c015c1a7676c0efbb84b929fa9ff0

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:

f66863c2345452a58ba5380f393471836e66a8d8247ce320ce241cdb84808f7d.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ f66863c2345452a58ba5380f393471836e66a8d8247ce320ce241cdb84808f7d.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	f66863c2345452a58ba5380f393471836e66a8d8247ce320ce241cdb84808f7d.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:

f66863c2345452a58ba5380f393471836e66a8d8247ce320ce241cdb84808f7d.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	f66863c2345452a58ba5380f393471836e66a8d8247ce320ce241cdb84808f7d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f66863c2345452a58ba5380f393471836e66a8d8247ce320ce241cdb84808f7d.exe

Loads dropped DLL 2 IoCs

Processes:

f66863c2345452a58ba5380f393471836e66a8d8247ce320ce241cdb84808f7d.exe

pid	process
1968	f66863c2345452a58ba5380f393471836e66a8d8247ce320ce241cdb84808f7d.exe
1968	f66863c2345452a58ba5380f393471836e66a8d8247ce320ce241cdb84808f7d.exe

Themida packer 5 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1968-55-0x0000000000400000-0x0000000000A43000-memory.dmp	themida
behavioral1/memory/1968-56-0x0000000000400000-0x0000000000A43000-memory.dmp	themida
behavioral1/memory/1968-57-0x0000000000400000-0x0000000000A43000-memory.dmp	themida
behavioral1/memory/1968-60-0x0000000000400000-0x0000000000A43000-memory.dmp	themida
behavioral1/memory/1968-61-0x0000000000400000-0x0000000000A43000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

f66863c2345452a58ba5380f393471836e66a8d8247ce320ce241cdb84808f7d.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	f66863c2345452a58ba5380f393471836e66a8d8247ce320ce241cdb84808f7d.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\f66863c2345452a58ba5380f393471836e66a8d8247ce320ce241cdb84808f7d.exe
"C:\Users\Admin\AppData\Local\Temp\f66863c2345452a58ba5380f393471836e66a8d8247ce320ce241cdb84808f7d.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:1968

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

\Users\Admin\AppData\Local\Temp\nst3610.tmp\INetC.dll
Filesize
25KB

MD5
40d7eca32b2f4d29db98715dd45bfac5

SHA1
124df3f617f562e46095776454e1c0c7bb791cc7

SHA256
85e03805f90f72257dd41bfdaa186237218bbb0ec410ad3b6576a88ea11dccb9

SHA512
5fd4f516ce23fb7e705e150d5c1c93fc7133694ba495fb73101674a528883a013a34ab258083aa7ce6072973b067a605158316a4c9159c1b4d765761f91c513d

Download Submit
\Users\Admin\AppData\Local\Temp\nst3610.tmp\xml.dll
Filesize
1.3MB

MD5
88708efccdd5ff09edec8c7c5eea8cff

SHA1
26f2502e186cc063a534e9fd84d1cd5168d3f908

SHA256
c74ee241bda68782dd2885bbf8e0a38fcebdc04951b5db727cd0ea90e7858b44

SHA512
aecc8ab35f4cfa9eb88b5f5dc65f020515dd3ee502c6d0f133276da8a8aaf43081bf8c7b6468261765dd7b7acc895f55520478e10e31bd9e811d8bffce0997a8

Download Submit
memory/1968-54-0x00000000754D1000-0x00000000754D3000-memory.dmp

Filesize
8KB

Download
memory/1968-55-0x0000000000400000-0x0000000000A43000-memory.dmp

Filesize
6.3MB

Download
memory/1968-56-0x0000000000400000-0x0000000000A43000-memory.dmp

Filesize
6.3MB

Download
memory/1968-57-0x0000000000400000-0x0000000000A43000-memory.dmp

Filesize
6.3MB

Download
memory/1968-60-0x0000000000400000-0x0000000000A43000-memory.dmp

Filesize
6.3MB

Download
memory/1968-61-0x0000000000400000-0x0000000000A43000-memory.dmp

Filesize
6.3MB

Download