ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079

Analysis

max time kernel
144s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-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

2788 WwanSvc.exe

pid	process
2788	WwanSvc.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/632-0-0x00000000004E0000-0x0000000000508000-memory.dmp	upx
C:\ProgramData\Update\WwanSvc.exe	upx
behavioral2/memory/2788-5-0x00000000003C0000-0x00000000003E8000-memory.dmp	upx
behavioral2/memory/632-6-0x00000000004E0000-0x0000000000508000-memory.dmp	upx
behavioral2/memory/2788-7-0x00000000003C0000-0x00000000003E8000-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 3 IoCs

Processes:

ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe

description	pid	process	target process
PID 632 wrote to memory of 2788	632	ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe	WwanSvc.exe
PID 632 wrote to memory of 2788	632	ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe	WwanSvc.exe
PID 632 wrote to memory of 2788	632	ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe	WwanSvc.exe

C:\Users\Admin\AppData\Local\Temp\ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe
"C:\Users\Admin\AppData\Local\Temp\ef760dd5e03941625507c9899df4c8f18199a5fc25dc208f9c810d7046cc6079.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:632

C:\ProgramData\Update\WwanSvc.exe
"C:\ProgramData\Update\WwanSvc.exe" /run
2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2788

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

Replay Monitor

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Downloads

C:\ProgramData\Update\WwanSvc.exe
Filesize
135KB

MD5
65cb179b0d13fb5b58f4c2f564f4a83d

SHA1
30fdd3fdb00473cb752b4d26fef5c5cc25700262

SHA256
412e806b86f15eb32b963c12ed575e5f8a1368620b4a62f99c9443297618c40c

SHA512
95f8a358473d8a364a5ba1ddd9c510046ecabded6d3d7a948006ff31c5da20e57ddd6e183d61732a6cf7d80c7648556d9d7d3aa283a9984868be2c4d5d12433f

Download Submit
memory/632-0-0x00000000004E0000-0x0000000000508000-memory.dmp

Filesize
160KB

Download
memory/632-6-0x00000000004E0000-0x0000000000508000-memory.dmp

Filesize
160KB

Download
memory/2788-5-0x00000000003C0000-0x00000000003E8000-memory.dmp

Filesize
160KB

Download
memory/2788-7-0x00000000003C0000-0x00000000003E8000-memory.dmp

Filesize
160KB

Download