d001c2b60e136d3805c2d86802158d3219d4f3952436e19191690d88fb39f638

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 11:16

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General

Target

Catalyst.exe
Size

14.0MB
MD5

b765109a6a7d339473b61ab9a759aa0e
SHA1

ade52ded8366094eee9d2a5827bfe45b3b7a977b
SHA256

b5e63f3bbfc75de4da25277b7a9fa0b650e8e2bc72c2af0087bd09698a9d098d
SHA512

ff813e628761d8ac3ee433fcf40dfaac26dd25ae7ac5ce1680c851e4dc9c69398590007043e2eebe5da0e407c917320cea46782bed072ed72f7d3826f868292d
SSDEEP

393216:aamtGGrfI/5ONXPeDELqPV7gvjZmqyrdUzeP:3GrfqINX5Lqpgr8qyOzeP

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:

Catalyst.exe

description ioc process

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

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

Catalyst.exe

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

Executes dropped EXE 1 IoCs

Processes:

Catalyst_InDev0.1.exe

pid process

2668 Catalyst_InDev0.1.exe
Loads dropped DLL 2 IoCs

Processes:

Catalyst.exeCatalyst_InDev0.1.exe

pid process

856 Catalyst.exe
2668 Catalyst_InDev0.1.exe

pid	process
2668	Catalyst_InDev0.1.exe

pid	process
856	Catalyst.exe
2668	Catalyst_InDev0.1.exe

Themida packer 4 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/856-1-0x000000013F330000-0x00000001406FF000-memory.dmp	themida
behavioral1/memory/856-2-0x000000013F330000-0x00000001406FF000-memory.dmp	themida
behavioral1/memory/856-3-0x000000013F330000-0x00000001406FF000-memory.dmp	themida
behavioral1/memory/856-63-0x000000013F330000-0x00000001406FF000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Catalyst.exe

description ioc process

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

Processes:

Catalyst.exe

pid process

856 Catalyst.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

pid	process
856	Catalyst.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

Catalyst.exe

description	pid	process	target process
PID 856 wrote to memory of 2668	856	Catalyst.exe	Catalyst_InDev0.1.exe
PID 856 wrote to memory of 2668	856	Catalyst.exe	Catalyst_InDev0.1.exe
PID 856 wrote to memory of 2668	856	Catalyst.exe	Catalyst_InDev0.1.exe

C:\Users\Admin\AppData\Local\Temp\Catalyst.exe
"C:\Users\Admin\AppData\Local\Temp\Catalyst.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:856

C:\Users\Admin\AppData\Local\Temp\onefile_856_133608502052368000\Catalyst_InDev0.1.exe
"C:\Users\Admin\AppData\Local\Temp\Catalyst.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2668

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\onefile_856_133608502052368000\Catalyst_InDev0.1.exe
Filesize
18.9MB

MD5
a741156268d6ab6453764be886311f4f

SHA1
3bb0602428b38ffbc87d3862f690a3bbdae8f8ce

SHA256
d4a362825a355126eafd5fba2795722948bb6215456415d9ae9ef05f09c2cb6c

SHA512
48cd06115b888f47c20bbeaed584a2c9f61b12e3cef5f61f3165f3dfa92b580f9992c70608c1224024c3379437366fa54404096ea3ab37cfca79a81bb8fb4a98

Download Submit
C:\Users\Admin\AppData\Local\Temp\onefile_856_133608502052368000\python311.dll
Filesize
5.5MB

MD5
9a24c8c35e4ac4b1597124c1dcbebe0f

SHA1
f59782a4923a30118b97e01a7f8db69b92d8382a

SHA256
a0cf640e756875c25c12b4a38ba5f2772e8e512036e2ac59eb8567bf05ffbfb7

SHA512
9d9336bf1f0d3bc9ce4a636a5f4e52c5f9487f51f00614fc4a34854a315ce7ea8be328153812dbd67c45c75001818fa63317eba15a6c9a024fa9f2cab163165b

Download Submit
memory/856-0-0x0000000077650000-0x0000000077652000-memory.dmp

Filesize
8KB

Download
memory/856-1-0x000000013F330000-0x00000001406FF000-memory.dmp

Filesize
19.8MB

Download
memory/856-2-0x000000013F330000-0x00000001406FF000-memory.dmp

Filesize
19.8MB

Download
memory/856-3-0x000000013F330000-0x00000001406FF000-memory.dmp

Filesize
19.8MB

Download
memory/856-63-0x000000013F330000-0x00000001406FF000-memory.dmp

Filesize
19.8MB

Download
memory/2668-36-0x000000013FEE0000-0x0000000141212000-memory.dmp

Filesize
19.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads