1324efa8f441ebe7878c6930271083cdaf9131e03f77f10abf4f8d8c193641a0

Analysis

max time kernel
153s
max time network
165s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2023 07:08

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General

Target

5b848ac1f7d1941807a399205e9ba0a2.exe
Size

572KB
MD5

5b848ac1f7d1941807a399205e9ba0a2
SHA1

347ba0665779ab2c4358aeba835475f21b2e5fa8
SHA256

1324efa8f441ebe7878c6930271083cdaf9131e03f77f10abf4f8d8c193641a0
SHA512

d315a257efb63bbde5c8f9b8063bc14b07a0015b55c16848197343fe80fc6d3371bb01e2dc31d6ad14ca9523000c275fd4e179f6673dd441d70333b9d0a440f4
SSDEEP

12288:3dGNE6khUDor2HAuEMJZCZrIBj5eQIlnD1KkPWAivIeiUcvMH8:KE6ArAAuE2orm1IlnD1KkowzMH8

Score

7^/10

discovery upx

Malware Config

Signatures

Checks BIOS information in registry 2 TTPs 1 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	5b848ac1f7d1941807a399205e9ba0a2.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4428-0-0x0000000000330000-0x00000000004CE000-memory.dmp	upx
behavioral2/memory/4428-2-0x0000000000330000-0x00000000004CE000-memory.dmp	upx
behavioral2/memory/4428-4-0x0000000000330000-0x00000000004CE000-memory.dmp	upx

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

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 value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	5b848ac1f7d1941807a399205e9ba0a2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	5b848ac1f7d1941807a399205e9ba0a2.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2012	4428	WerFault.exe	22
2872	4428	WerFault.exe	22

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4428	5b848ac1f7d1941807a399205e9ba0a2.exe
4428	5b848ac1f7d1941807a399205e9ba0a2.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4428	5b848ac1f7d1941807a399205e9ba0a2.exe
4428	5b848ac1f7d1941807a399205e9ba0a2.exe
4428	5b848ac1f7d1941807a399205e9ba0a2.exe
4428	5b848ac1f7d1941807a399205e9ba0a2.exe
4428	5b848ac1f7d1941807a399205e9ba0a2.exe

C:\Users\Admin\AppData\Local\Temp\5b848ac1f7d1941807a399205e9ba0a2.exe
"C:\Users\Admin\AppData\Local\Temp\5b848ac1f7d1941807a399205e9ba0a2.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4428
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4428 -s 2380
  2⤵
  - Program crash
  PID:2012
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4428 -s 2372
  2⤵
  - Program crash
  PID:2872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4428 -ip 4428
1⤵
PID:3644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4428 -ip 4428
1⤵
PID:3548

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Replay Monitor

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Downloads

memory/4428-0-0x0000000000330000-0x00000000004CE000-memory.dmp

Filesize
1.6MB

Download
memory/4428-2-0x0000000000330000-0x00000000004CE000-memory.dmp

Filesize
1.6MB

Download
memory/4428-4-0x0000000000330000-0x00000000004CE000-memory.dmp

Filesize
1.6MB

Download