60f649f6d971c44b959f6fef2bf1d08c3dbe00edeac7a889e81adc761ba5ddba

Resubmissions

14-07-2021 20:31

210714-dsddjt2b6n 9

14-07-2021 11:13

210714-432webem26 10

14-07-2021 10:51

210714-h797jtnf2e 10

14-07-2021 10:13

210714-cjzg2qd8dn 10

Analysis

max time kernel
1198s
max time network
1242s
platform
windows7_x64
resource
win7v20210408
submitted
14-07-2021 10:51

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Report Analysis Logs

General

Target

Sirus.exe
Size

5.4MB
MD5

5e4a3d8845f4f31e4d737877f0689b97
SHA1

69bdc176295e7899c4be7125a37bed5e94df051e
SHA256

60f649f6d971c44b959f6fef2bf1d08c3dbe00edeac7a889e81adc761ba5ddba
SHA512

7853f295f1167bf76ae2b207814c010be30f537909552c580782c2c45fbf7f954c32d39ffd2b4629c315b520fccffb264ad21e93384c94886ff9fa42d06b9e92

Score

9^/10

evasion themida trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

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:

Sirus.exe

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

Themida packer 1 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2044-60-0x00000000011F0000-0x0000000001D18000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Sirus.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Sirus.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

Sirus.exe

pid process

2044 Sirus.exe

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

pid	process
2044	Sirus.exe

C:\Users\Admin\AppData\Local\Temp\Sirus.exe
"C:\Users\Admin\AppData\Local\Temp\Sirus.exe"
1⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:2044

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

memory/2044-59-0x0000000075B31000-0x0000000075B33000-memory.dmp

Filesize
8KB

Download
memory/2044-60-0x00000000011F0000-0x0000000001D18000-memory.dmp

Filesize
11.2MB

Download
memory/2044-61-0x00000000011F1000-0x000000000125D000-memory.dmp

Filesize
432KB

Download
memory/2044-62-0x00000000011F1000-0x000000000125D000-memory.dmp

Filesize
432KB

Download