0e5788cdbb66a84053909c36fe68630f93f8a5dce4a4823afa47562f4eebb053

Analysis

max time kernel
12s
max time network
14s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
21/10/2023, 21:31

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General

Target

NEAS.c4d8c9b20b79d331b8f5c5aca429e0d0.exe
Size

2.5MB
MD5

c4d8c9b20b79d331b8f5c5aca429e0d0
SHA1

6884aca1f28e29a42e6958c1ad475da96a15f75c
SHA256

0e5788cdbb66a84053909c36fe68630f93f8a5dce4a4823afa47562f4eebb053
SHA512

a49cd8a51c88106216041a9e26d9a15fb4f35b8538a43fdf0fb849dd6f48f1830aacb33a55296fa95a54bd4bdefd3844e7b0b1b1b15f091b0dd651c3d2231102
SSDEEP

49152:5II09ihEkGCJB//jOsO2/hCRiAyZNwb1+pi9hMaL1CdYlzTmjr:kl2BhpoiASwb1Gi9hpL1CdGWv

Score

9^/10

evasion themida trojan

Malware Config

Signatures

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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	NEAS.c4d8c9b20b79d331b8f5c5aca429e0d0.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	acwxofj.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	NEAS.c4d8c9b20b79d331b8f5c5aca429e0d0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	acwxofj.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	acwxofj.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	NEAS.c4d8c9b20b79d331b8f5c5aca429e0d0.exe

Executes dropped EXE 1 IoCs

pid	Process
4620	acwxofj.exe

Themida packer 7 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/4876-0-0x0000000000400000-0x0000000000A60000-memory.dmp	themida
behavioral2/memory/4876-1-0x0000000000400000-0x0000000000A60000-memory.dmp	themida
behavioral2/memory/4876-2-0x0000000000400000-0x0000000000A60000-memory.dmp	themida
behavioral2/files/0x0007000000022e6b-6.dat	themida
behavioral2/files/0x0007000000022e6b-10.dat	themida
behavioral2/memory/4620-12-0x0000000000400000-0x0000000000A60000-memory.dmp	themida
behavioral2/memory/4620-13-0x0000000000400000-0x0000000000A60000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	NEAS.c4d8c9b20b79d331b8f5c5aca429e0d0.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	acwxofj.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\acwxofj.exe	NEAS.c4d8c9b20b79d331b8f5c5aca429e0d0.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.c4d8c9b20b79d331b8f5c5aca429e0d0.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.c4d8c9b20b79d331b8f5c5aca429e0d0.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in Program Files directory
PID:4876

C:\PROGRA~3\Mozilla\acwxofj.exe
C:\PROGRA~3\Mozilla\acwxofj.exe -stamzkg
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
PID:4620

Network

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:\PROGRA~3\Mozilla\acwxofj.exe

Filesize
2.5MB

MD5
67835ef8fc4972e5757e9677b8469981

SHA1
dedf8aa04a9717d7e8614666026fc753d9d8c602

SHA256
40055c45022fac7b817253b00c1a01730786bb342ad3238acb61c51a640890a7

SHA512
926d08e1701f344fe5c69eb3c1d04e738e00d6fc00b96dd889c118f9db4c3097bffbc11fe869762b6bb01847e4c378ce1708b7fc6674379a518e8972c7b92a3f

Download Submit
C:\ProgramData\Mozilla\acwxofj.exe

Filesize
2.5MB

MD5
67835ef8fc4972e5757e9677b8469981

SHA1
dedf8aa04a9717d7e8614666026fc753d9d8c602

SHA256
40055c45022fac7b817253b00c1a01730786bb342ad3238acb61c51a640890a7

SHA512
926d08e1701f344fe5c69eb3c1d04e738e00d6fc00b96dd889c118f9db4c3097bffbc11fe869762b6bb01847e4c378ce1708b7fc6674379a518e8972c7b92a3f

Download Submit
memory/4620-14-0x0000000001810000-0x000000000186C000-memory.dmp

Filesize
368KB

Download
memory/4620-13-0x0000000000400000-0x0000000000A60000-memory.dmp

Filesize
6.4MB

Download
memory/4620-12-0x0000000000400000-0x0000000000A60000-memory.dmp

Filesize
6.4MB

Download
memory/4876-7-0x0000000000400000-0x0000000000A60000-memory.dmp

Filesize
6.4MB

Download
memory/4876-0-0x0000000000400000-0x0000000000A60000-memory.dmp

Filesize
6.4MB

Download
memory/4876-9-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4876-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4876-11-0x0000000002CC0000-0x0000000002D1C000-memory.dmp

Filesize
368KB

Download
memory/4876-3-0x0000000002CC0000-0x0000000002D1C000-memory.dmp

Filesize
368KB

Download
memory/4876-2-0x0000000000400000-0x0000000000A60000-memory.dmp

Filesize
6.4MB

Download
memory/4876-1-0x0000000000400000-0x0000000000A60000-memory.dmp

Filesize
6.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads