4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a

Analysis

max time kernel
93s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2022 13:26

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General

Target

4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe
Size

935KB
MD5

9a1d29b7b92cf0abf7f6a39e39ffb6b1
SHA1

c84b629057d14f6f08dac48d2b8ef6c50c828b1b
SHA256

4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a
SHA512

f5c499cdf66f10361023d9c5f1731cc9b4f2ed265e94fbe67b0e149a7f5641c9d54f72e68a3f08721378f2e62b61387b30f34abb1c11a97dc128759ed21011ee
SSDEEP

12288:p5Yr15f753d5QWIDz/Wz9NCyzHinLipNDJ5eoFb0OZ/WiGaks+HL63S27x4O:pyHv5Z+Wzv7AiBll0OBWi6si9G7

Score

8^/10

upx

Malware Config

Signatures

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3756-133-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/3756-135-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/3756-136-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/3756-137-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/3756-138-0x0000000000400000-0x00000000004F2000-memory.dmp	upx

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4264 set thread context of 3756	4264	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe	81

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3756	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe
3756	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe
3756	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe
3756	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe
3756	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe
3756	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4264 wrote to memory of 3756	4264	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe	81
PID 4264 wrote to memory of 3756	4264	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe	81
PID 4264 wrote to memory of 3756	4264	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe	81
PID 4264 wrote to memory of 3756	4264	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe	81
PID 4264 wrote to memory of 3756	4264	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe	81
PID 4264 wrote to memory of 3756	4264	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe	81
PID 4264 wrote to memory of 3756	4264	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe	81
PID 4264 wrote to memory of 3756	4264	4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe	81

C:\Users\Admin\AppData\Local\Temp\4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe
"C:\Users\Admin\AppData\Local\Temp\4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4264
- C:\Users\Admin\AppData\Local\Temp\4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe
  "C:\Users\Admin\AppData\Local\Temp\4e21b2b32f16e599cb7958e409d60b0966d2bffcaef9275a4ca3d7c0d352909a.exe" Track="0001001000"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:3756

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3756-133-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/3756-135-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/3756-136-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/3756-137-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/3756-138-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads