ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079

Analysis

max time kernel
121s
max time network
137s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
27-07-2024 05:39

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General

Target

ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe
Size

135KB
MD5

adce313476999fc410cffb1035751aa2
SHA1

9e8c7eb835bb386264a90f6a13e87edbae8b94a5
SHA256

ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079
SHA512

f7b055b43964697f5e3fca2045402bf573596db8e8e57b1fea79ea62da6c05b18d67f8dbf07e7a4440a20df6cf23e21278333c214a98d5e45d8bca710ca704e0
SSDEEP

1536:rF0AJELopHG9aa+9qX3apJzAKWYr0v7ioy6paK2AZqMIK7aGZh38Q2:riAyLN9aa+9U2rW1ip6pr2At7NZuQ2

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

WwanSvc.exe

pid process

1688 WwanSvc.exe
Loads dropped DLL 1 IoCs

Processes:

ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe

pid process

804 ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe

pid	process
1688	WwanSvc.exe

pid	process
804	ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/804-1-0x0000000000880000-0x00000000008A8000-memory.dmp	upx
\ProgramData\Update\WwanSvc.exe	upx
behavioral1/memory/1688-7-0x0000000000C00000-0x0000000000C28000-memory.dmp	upx
behavioral1/memory/1688-8-0x0000000000C00000-0x0000000000C28000-memory.dmp	upx
behavioral1/memory/804-9-0x0000000000880000-0x00000000008A8000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\WwanSvc.exe\" /run"	ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.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:

ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exeWwanSvc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WwanSvc.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe

description	pid	process	target process
PID 804 wrote to memory of 1688	804	ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe	WwanSvc.exe
PID 804 wrote to memory of 1688	804	ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe	WwanSvc.exe
PID 804 wrote to memory of 1688	804	ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe	WwanSvc.exe
PID 804 wrote to memory of 1688	804	ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe	WwanSvc.exe

C:\Users\Admin\AppData\Local\Temp\ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe
"C:\Users\Admin\AppData\Local\Temp\ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:804

C:\ProgramData\Update\WwanSvc.exe
"C:\ProgramData\Update\WwanSvc.exe" /run
2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1688

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

\ProgramData\Update\WwanSvc.exe
Filesize
135KB

MD5
349056e4457d30e2c06633ecb5cc6a6f

SHA1
c5e7effe4aeb2591d88d172a27221f7a82167b65

SHA256
6b14bd916ae7766c069c6c1311ee7c66b64daa55ea3e8772d8907822a138817a

SHA512
8512511c445f9df60e5acd2f5aae9adc90aa37ca5330d00b9bb8e6970f80e5335448f97ba6ef658240279d6ebdd7fec847f3626f9bfefcd6ca18211569be51b4

Download Submit
memory/804-1-0x0000000000880000-0x00000000008A8000-memory.dmp

Filesize
160KB

Download
memory/804-6-0x00000000000D0000-0x00000000000F8000-memory.dmp

Filesize
160KB

Download
memory/804-9-0x0000000000880000-0x00000000008A8000-memory.dmp

Filesize
160KB

Download
memory/1688-7-0x0000000000C00000-0x0000000000C28000-memory.dmp

Filesize
160KB

Download
memory/1688-8-0x0000000000C00000-0x0000000000C28000-memory.dmp

Filesize
160KB

Download