213c51fe725536ddf49bec4716bec26f7f09700a052ae56b305d783ecbbfd349

Analysis

max time kernel
163s
max time network
183s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
10/01/2024, 07:59

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General

Target

50039c5c1ddf1adfe3ee4cb11332bf70.exe
Size

666KB
MD5

50039c5c1ddf1adfe3ee4cb11332bf70
SHA1

e169d709b1275419736035bc66ac2ff5e1359ea6
SHA256

213c51fe725536ddf49bec4716bec26f7f09700a052ae56b305d783ecbbfd349
SHA512

345800d6dbbab06e9499e0fa330947293bc9adc892064ad6ae4ca3acf81aae8d2794320cce74bee2180ab484e43955f6a112cf5ed20c60528221460dcc136e89
SSDEEP

12288:TuICix5biGGkpfJaQRLWpxeTMb3LGr3t0aX/pShgQwM7TwXwodf3nut:TJCKVkQR0eTMb3LGr3lXIhxwiUwcfnut

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	50039c5c1ddf1adfe3ee4cb11332bf70.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1504-0-0x0000000000400000-0x00000000005C7000-memory.dmp	upx
behavioral2/memory/1504-1-0x0000000000400000-0x00000000005C7000-memory.dmp	upx
behavioral2/memory/1504-2-0x0000000000400000-0x00000000005C7000-memory.dmp	upx
behavioral2/memory/1504-3-0x0000000000400000-0x00000000005C7000-memory.dmp	upx
behavioral2/memory/1504-4-0x0000000000400000-0x00000000005C7000-memory.dmp	upx
behavioral2/memory/1504-5-0x0000000000400000-0x00000000005C7000-memory.dmp	upx
behavioral2/memory/1504-15-0x0000000000400000-0x00000000005C7000-memory.dmp	upx
behavioral2/memory/1504-17-0x0000000000400000-0x00000000005C7000-memory.dmp	upx
behavioral2/memory/1504-18-0x0000000000400000-0x00000000005C7000-memory.dmp	upx
behavioral2/memory/1504-19-0x0000000000400000-0x00000000005C7000-memory.dmp	upx
behavioral2/memory/1504-20-0x0000000000400000-0x00000000005C7000-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 opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	50039c5c1ddf1adfe3ee4cb11332bf70.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	50039c5c1ddf1adfe3ee4cb11332bf70.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1544	1504	WerFault.exe	89
5096	1504	WerFault.exe	89

Suspicious use of SetWindowsHookEx 9 IoCs

pid	Process
1504	50039c5c1ddf1adfe3ee4cb11332bf70.exe
1504	50039c5c1ddf1adfe3ee4cb11332bf70.exe
1504	50039c5c1ddf1adfe3ee4cb11332bf70.exe
1504	50039c5c1ddf1adfe3ee4cb11332bf70.exe
1504	50039c5c1ddf1adfe3ee4cb11332bf70.exe
1504	50039c5c1ddf1adfe3ee4cb11332bf70.exe
1504	50039c5c1ddf1adfe3ee4cb11332bf70.exe
1504	50039c5c1ddf1adfe3ee4cb11332bf70.exe
1504	50039c5c1ddf1adfe3ee4cb11332bf70.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1504 wrote to memory of 1544	1504	50039c5c1ddf1adfe3ee4cb11332bf70.exe	105
PID 1504 wrote to memory of 1544	1504	50039c5c1ddf1adfe3ee4cb11332bf70.exe	105
PID 1504 wrote to memory of 1544	1504	50039c5c1ddf1adfe3ee4cb11332bf70.exe	105

C:\Users\Admin\AppData\Local\Temp\50039c5c1ddf1adfe3ee4cb11332bf70.exe
"C:\Users\Admin\AppData\Local\Temp\50039c5c1ddf1adfe3ee4cb11332bf70.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1504
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1504 -s 2480
  2⤵
  - Program crash
  PID:1544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1504 -s 2480
  2⤵
  - Program crash
  PID:5096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1504 -ip 1504
1⤵
PID:2584

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

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Downloads

memory/1504-0-0x0000000000400000-0x00000000005C7000-memory.dmp

Filesize
1.8MB

Download
memory/1504-1-0x0000000000400000-0x00000000005C7000-memory.dmp

Filesize
1.8MB

Download
memory/1504-2-0x0000000000400000-0x00000000005C7000-memory.dmp

Filesize
1.8MB

Download
memory/1504-3-0x0000000000400000-0x00000000005C7000-memory.dmp

Filesize
1.8MB

Download
memory/1504-4-0x0000000000400000-0x00000000005C7000-memory.dmp

Filesize
1.8MB

Download
memory/1504-5-0x0000000000400000-0x00000000005C7000-memory.dmp

Filesize
1.8MB

Download
memory/1504-15-0x0000000000400000-0x00000000005C7000-memory.dmp

Filesize
1.8MB

Download
memory/1504-17-0x0000000000400000-0x00000000005C7000-memory.dmp

Filesize
1.8MB

Download
memory/1504-18-0x0000000000400000-0x00000000005C7000-memory.dmp

Filesize
1.8MB

Download
memory/1504-19-0x0000000000400000-0x00000000005C7000-memory.dmp

Filesize
1.8MB

Download
memory/1504-20-0x0000000000400000-0x00000000005C7000-memory.dmp

Filesize
1.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads