3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571

Analysis

max time kernel
151s
max time network
155s
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 14:15

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General

Target

3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe
Size

935KB
MD5

815ae2af27703e10ccbb4a876a013c68
SHA1

0576d675ab5be8088cd7de02c3ab87e85bd55b3d
SHA256

3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571
SHA512

442e41ffa6c0de0b2327ada0ce838892c0a9b343624bd19ad8ed0972272900bcaf63c6c64391444ae2d58ef7bdab4e5f18197e2e33445b841cf47426439844d5
SSDEEP

12288:p5Yr15f753d5QWIDz/Wz9NCyzHinLipNDJ5eoFb0OZ/WiGaks+HL63S27x4:pyHv5Z+Wzv7AiBll0OBWi6si9G

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/4888-133-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/4888-135-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/4888-136-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/4888-137-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/4888-138-0x0000000000400000-0x00000000004F2000-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	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.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	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4548 set thread context of 4888	4548	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe	80

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4888	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe
4888	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe
4888	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe
4888	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe
4888	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe
4888	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4548 wrote to memory of 4888	4548	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe	80
PID 4548 wrote to memory of 4888	4548	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe	80
PID 4548 wrote to memory of 4888	4548	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe	80
PID 4548 wrote to memory of 4888	4548	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe	80
PID 4548 wrote to memory of 4888	4548	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe	80
PID 4548 wrote to memory of 4888	4548	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe	80
PID 4548 wrote to memory of 4888	4548	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe	80
PID 4548 wrote to memory of 4888	4548	3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe	80

C:\Users\Admin\AppData\Local\Temp\3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe
"C:\Users\Admin\AppData\Local\Temp\3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4548
- C:\Users\Admin\AppData\Local\Temp\3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe
  "C:\Users\Admin\AppData\Local\Temp\3b1981b2ac6251db94e39e9a33e7ea8bbf42ae395af57aa7d0eccb26e7d7e571.exe" Track="0001001000"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:4888

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/4888-132-0x0000000000000000-mapping.dmp

Download
memory/4888-133-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/4888-135-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/4888-136-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/4888-137-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/4888-138-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads