29c562281ab68f2f7861057de64ebf548038ce084cc878f676cf86b200a1dd91

Resubmissions

02-08-2022 14:30

220802-rt5nzafgg6 9

02-08-2022 13:53

220802-q7bsdafee7 9

Analysis

max time kernel
150s
max time network
153s
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 13:53

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General

Target

4867822a4f3b6a5863c1a3e407ca09aae29fed5be1e4fb6bdce6f25432d329dc.exe
Size

5.9MB
MD5

e708e555e05c3d53a782200991a1984b
SHA1

419a0fcccea429405631bb93d223a3319fb3fcee
SHA256

4867822a4f3b6a5863c1a3e407ca09aae29fed5be1e4fb6bdce6f25432d329dc
SHA512

c74fe985e1fe6f6ad160bc6c58822e312d00308064c18f8e97ce497ed20f178e60ea854445b4a27ea4a4624045df5a76ae773b41443929cd98638fd2be5021e8

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:

4867822a4f3b6a5863c1a3e407ca09aae29fed5be1e4fb6bdce6f25432d329dc.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 4867822a4f3b6a5863c1a3e407ca09aae29fed5be1e4fb6bdce6f25432d329dc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	4867822a4f3b6a5863c1a3e407ca09aae29fed5be1e4fb6bdce6f25432d329dc.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:

4867822a4f3b6a5863c1a3e407ca09aae29fed5be1e4fb6bdce6f25432d329dc.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4867822a4f3b6a5863c1a3e407ca09aae29fed5be1e4fb6bdce6f25432d329dc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4867822a4f3b6a5863c1a3e407ca09aae29fed5be1e4fb6bdce6f25432d329dc.exe

Loads dropped DLL 3 IoCs

Processes:

4867822a4f3b6a5863c1a3e407ca09aae29fed5be1e4fb6bdce6f25432d329dc.exe

pid	process
876	4867822a4f3b6a5863c1a3e407ca09aae29fed5be1e4fb6bdce6f25432d329dc.exe
876	4867822a4f3b6a5863c1a3e407ca09aae29fed5be1e4fb6bdce6f25432d329dc.exe
876	4867822a4f3b6a5863c1a3e407ca09aae29fed5be1e4fb6bdce6f25432d329dc.exe

Themida packer 5 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/876-130-0x0000000000400000-0x0000000000A4C000-memory.dmp	themida
behavioral2/memory/876-131-0x0000000000400000-0x0000000000A4C000-memory.dmp	themida
behavioral2/memory/876-132-0x0000000000400000-0x0000000000A4C000-memory.dmp	themida
behavioral2/memory/876-137-0x0000000000400000-0x0000000000A4C000-memory.dmp	themida
behavioral2/memory/876-138-0x0000000000400000-0x0000000000A4C000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

4867822a4f3b6a5863c1a3e407ca09aae29fed5be1e4fb6bdce6f25432d329dc.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	4867822a4f3b6a5863c1a3e407ca09aae29fed5be1e4fb6bdce6f25432d329dc.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4372 3076 WerFault.exe

pid	pid_target	process	target process
4372	3076	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\4867822a4f3b6a5863c1a3e407ca09aae29fed5be1e4fb6bdce6f25432d329dc.exe
"C:\Users\Admin\AppData\Local\Temp\4867822a4f3b6a5863c1a3e407ca09aae29fed5be1e4fb6bdce6f25432d329dc.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:876

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 460 -p 3076 -ip 3076
1⤵
PID:1396

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 3076 -s 1736
1⤵
- Program crash
PID:4372

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsj86AA.tmp\INetC.dll
Filesize
25KB

MD5
40d7eca32b2f4d29db98715dd45bfac5

SHA1
124df3f617f562e46095776454e1c0c7bb791cc7

SHA256
85e03805f90f72257dd41bfdaa186237218bbb0ec410ad3b6576a88ea11dccb9

SHA512
5fd4f516ce23fb7e705e150d5c1c93fc7133694ba495fb73101674a528883a013a34ab258083aa7ce6072973b067a605158316a4c9159c1b4d765761f91c513d

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsj86AA.tmp\INetC.dll
Filesize
25KB

MD5
40d7eca32b2f4d29db98715dd45bfac5

SHA1
124df3f617f562e46095776454e1c0c7bb791cc7

SHA256
85e03805f90f72257dd41bfdaa186237218bbb0ec410ad3b6576a88ea11dccb9

SHA512
5fd4f516ce23fb7e705e150d5c1c93fc7133694ba495fb73101674a528883a013a34ab258083aa7ce6072973b067a605158316a4c9159c1b4d765761f91c513d

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsj86AA.tmp\xml.dll
Filesize
1.6MB

MD5
244d8ccedd4b86bd5a6d743f688c08cb

SHA1
40daf7ba07ba31236c2cebc15f357be5c3e32cf3

SHA256
caa120ec8217f48315ec466a051c81565796ee93d70c002919d2460ca57527e1

SHA512
1289552e4ae0c74369dc15f4ade46217bc32ef2c84e178898f557e46088d3a8835e857061e92f1d70bdb40819aa99a24542a857e175bb39a9c73cb539cc6a936

Download Submit
memory/876-130-0x0000000000400000-0x0000000000A4C000-memory.dmp

Filesize
6.3MB

Download
memory/876-131-0x0000000000400000-0x0000000000A4C000-memory.dmp

Filesize
6.3MB

Download
memory/876-132-0x0000000000400000-0x0000000000A4C000-memory.dmp

Filesize
6.3MB

Download
memory/876-136-0x00000000027E1000-0x00000000027E5000-memory.dmp

Filesize
16KB

Download
memory/876-137-0x0000000000400000-0x0000000000A4C000-memory.dmp

Filesize
6.3MB

Download
memory/876-138-0x0000000000400000-0x0000000000A4C000-memory.dmp

Filesize
6.3MB

Download