eca26fcdfbe92eb903fbfa66ba76fc4c10bf8ba499b62431440369c90493a294

Analysis

max time kernel
94s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2024, 02:53

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General

Target

eca26fcdfbe92eb903fbfa66ba76fc4c10bf8ba499b62431440369c90493a294N.exe
Size

94KB
MD5

9174dbcd76a6fc5e2e908d24fd0f2140
SHA1

6334aafece9fa07c404aadbd432187fb0eb1705c
SHA256

eca26fcdfbe92eb903fbfa66ba76fc4c10bf8ba499b62431440369c90493a294
SHA512

af3e0572e02583f0fd843768596554d00546a183ff3522decb1268fe28c9d7fb3a0f11b3c70f9d86083b2c1df4a51cc48e7da7f2f333980a6cd80d8731384898
SSDEEP

1536:skPjmPwvx3PtLBzGMlGO+eo+zCj4CFgjASG3KazRZICrWaGZh7LLx1H:skLmuftLBzfIOz4VSGaqJrWNZ1Lx1H

Score

7^/10

defense_evasion discovery persistence

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	eca26fcdfbe92eb903fbfa66ba76fc4c10bf8ba499b62431440369c90493a294N.exe

Executes dropped EXE 1 IoCs

pid	Process
432	Wwansvc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\Wwansvc.exe\" /run"	eca26fcdfbe92eb903fbfa66ba76fc4c10bf8ba499b62431440369c90493a294N.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eca26fcdfbe92eb903fbfa66ba76fc4c10bf8ba499b62431440369c90493a294N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Wwansvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 432	1448	eca26fcdfbe92eb903fbfa66ba76fc4c10bf8ba499b62431440369c90493a294N.exe	82
PID 1448 wrote to memory of 432	1448	eca26fcdfbe92eb903fbfa66ba76fc4c10bf8ba499b62431440369c90493a294N.exe	82
PID 1448 wrote to memory of 432	1448	eca26fcdfbe92eb903fbfa66ba76fc4c10bf8ba499b62431440369c90493a294N.exe	82
PID 1448 wrote to memory of 928	1448	eca26fcdfbe92eb903fbfa66ba76fc4c10bf8ba499b62431440369c90493a294N.exe	91
PID 1448 wrote to memory of 928	1448	eca26fcdfbe92eb903fbfa66ba76fc4c10bf8ba499b62431440369c90493a294N.exe	91
PID 1448 wrote to memory of 928	1448	eca26fcdfbe92eb903fbfa66ba76fc4c10bf8ba499b62431440369c90493a294N.exe	91

C:\Users\Admin\AppData\Local\Temp\eca26fcdfbe92eb903fbfa66ba76fc4c10bf8ba499b62431440369c90493a294N.exe
"C:\Users\Admin\AppData\Local\Temp\eca26fcdfbe92eb903fbfa66ba76fc4c10bf8ba499b62431440369c90493a294N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1448
- C:\ProgramData\Update\Wwansvc.exe
  "C:\ProgramData\Update\Wwansvc.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:432
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\eca26fcdfbe92eb903fbfa66ba76fc4c10bf8ba499b62431440369c90493a294N.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:928

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Update\Wwansvc.exe

Filesize
94KB

MD5
a8ff2df9b9bebe274fe149e62e5aaf8a

SHA1
3a269f63819db13e1bac19ea40e9119bec670d30

SHA256
4ab1e258e37e75f470ae560ff7f4f09404d825c29f8f0990a74ed8e29b4432b0

SHA512
6e2a013d20ab305b5feebe31f762599707f7f2f61057b56d612a0acbed1cc89b442decfff3cfc5498fffac5044b9038a323ed668e841f096e1181867ae051d54

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads