f6a83e6ed8bf92b8ff4da0aba72fe354199ec79a99008b34800e4cfdb92d3a67

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22-11-2024 03:41

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General

Target

WcsPlugInService.ex.exe
Size

113KB
MD5

f9a974c8ed6793c226101c10af7542db
SHA1

5719e5b45721af9ac9652332f2001d984e1d9a45
SHA256

8f0c20eab317c9416ad6dd602013528dca8ee1467b111019fe6704ff8da6a241
SHA512

1f00ca5c9fdb1ca8fe6d9b9728da6b3aac57b72e17e528ec37e77cdf6ae1cd52384b0ae8256e2f74f88ba87c9e90c575a0a8ebf729f894590fe71d5e6ce608d3
SSDEEP

3072:pxuZMpyk7A79E6rdAXpRCxv/sqJ5SjTOaiZl7ObWlx+T:pYf79JAXKxHs0S3OaiZ1Oiv

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral4/memory/2556-0-0x0000000000810000-0x0000000000849000-memory.dmp	upx
behavioral4/memory/2556-12-0x0000000000810000-0x0000000000849000-memory.dmp	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1488 2564 WerFault.exe msiexec.exe

pid	pid_target	process	target process
1488	2564	WerFault.exe	msiexec.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

WcsPlugInService.ex.exemsiexec.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WcsPlugInService.ex.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

WcsPlugInService.ex.exe

pid process

2556 WcsPlugInService.ex.exe
2556 WcsPlugInService.ex.exe

pid	process
2556	WcsPlugInService.ex.exe
2556	WcsPlugInService.ex.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

WcsPlugInService.ex.exemsiexec.exe

description	pid	process	target process
PID 2556 wrote to memory of 2564	2556	WcsPlugInService.ex.exe	msiexec.exe
PID 2556 wrote to memory of 2564	2556	WcsPlugInService.ex.exe	msiexec.exe
PID 2556 wrote to memory of 2564	2556	WcsPlugInService.ex.exe	msiexec.exe
PID 2556 wrote to memory of 2564	2556	WcsPlugInService.ex.exe	msiexec.exe
PID 2556 wrote to memory of 2564	2556	WcsPlugInService.ex.exe	msiexec.exe
PID 2556 wrote to memory of 2564	2556	WcsPlugInService.ex.exe	msiexec.exe
PID 2556 wrote to memory of 2564	2556	WcsPlugInService.ex.exe	msiexec.exe
PID 2564 wrote to memory of 1488	2564	msiexec.exe	WerFault.exe
PID 2564 wrote to memory of 1488	2564	msiexec.exe	WerFault.exe
PID 2564 wrote to memory of 1488	2564	msiexec.exe	WerFault.exe
PID 2564 wrote to memory of 1488	2564	msiexec.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\WcsPlugInService.ex.exe
"C:\Users\Admin\AppData\Local\Temp\WcsPlugInService.ex.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2556
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2564
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2564 -s 268
    3⤵
    - Program crash
    PID:1488

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2556-0-0x0000000000810000-0x0000000000849000-memory.dmp

Filesize
228KB

Download
memory/2556-1-0x00000000001A0000-0x00000000001B9000-memory.dmp

Filesize
100KB

Download
memory/2556-2-0x0000000000280000-0x0000000000295000-memory.dmp

Filesize
84KB

Download
memory/2556-8-0x0000000000280000-0x0000000000295000-memory.dmp

Filesize
84KB

Download
memory/2556-12-0x0000000000810000-0x0000000000849000-memory.dmp

Filesize
228KB

Download
memory/2564-13-0x00000000005F0000-0x0000000000604000-memory.dmp

Filesize
80KB

Download
memory/2564-14-0x00000000005F0000-0x0000000000604000-memory.dmp

Filesize
80KB

Download
memory/2564-16-0x00000000005F0000-0x0000000000604000-memory.dmp

Filesize
80KB

Download