15707fc7e5440a709c29d44b3b6b125494f2e4b29e6d45f4b6c5cf850395a99c

Analysis

max time kernel
146s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 13:26

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General

Target

21a347f55965e4d4355e743e7f386efb.exe
Size

666KB
MD5

21a347f55965e4d4355e743e7f386efb
SHA1

15e51a6e6f94601d7f2d36a50c42d1f7634c1669
SHA256

15707fc7e5440a709c29d44b3b6b125494f2e4b29e6d45f4b6c5cf850395a99c
SHA512

a19155461954bee90e00827692058e8e4e96ea4c14676189acbdab966134152570e1f4f1510ff18a3c7c83e9b9babc6be57b66d88004b11f4f10623be6a90695
SSDEEP

12288:CbDqEkMs4q48IAeP0PifTEurPbvdqJplapLWTICNIYPKMTWN4t4OAUw91zRwIMf9:CXbs48LeP0P8E6dclWLi26KGOqMwIMF

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	21a347f55965e4d4355e743e7f386efb.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1796-0-0x0000000000400000-0x00000000005C7000-memory.dmp	upx
behavioral2/memory/1796-10-0x0000000000400000-0x00000000005C7000-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	21a347f55965e4d4355e743e7f386efb.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	21a347f55965e4d4355e743e7f386efb.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
5036	1796	WerFault.exe	16
1048	1796	WerFault.exe	16

Suspicious use of SetWindowsHookEx 9 IoCs

pid	Process
1796	21a347f55965e4d4355e743e7f386efb.exe
1796	21a347f55965e4d4355e743e7f386efb.exe
1796	21a347f55965e4d4355e743e7f386efb.exe
1796	21a347f55965e4d4355e743e7f386efb.exe
1796	21a347f55965e4d4355e743e7f386efb.exe
1796	21a347f55965e4d4355e743e7f386efb.exe
1796	21a347f55965e4d4355e743e7f386efb.exe
1796	21a347f55965e4d4355e743e7f386efb.exe
1796	21a347f55965e4d4355e743e7f386efb.exe

C:\Users\Admin\AppData\Local\Temp\21a347f55965e4d4355e743e7f386efb.exe
"C:\Users\Admin\AppData\Local\Temp\21a347f55965e4d4355e743e7f386efb.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetWindowsHookEx
PID:1796
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1796 -s 2096
  2⤵
  - Program crash
  PID:5036
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1796 -s 2616
  2⤵
  - Program crash
  PID:1048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1796 -ip 1796
1⤵
PID:3976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1796 -ip 1796
1⤵
PID:2372

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/1796-0-0x0000000000400000-0x00000000005C7000-memory.dmp

Filesize
1.8MB

Download
memory/1796-10-0x0000000000400000-0x00000000005C7000-memory.dmp

Filesize
1.8MB

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads