bb09de324bb92b3302aa7f5c1328d1d7a54209d2f4980ca0f31b38480f092763

Analysis

max time kernel
114s
max time network
120s
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 06:46

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General

Target

bb09de324bb92b3302aa7f5c1328d1d7a54209d2f4980ca0f31b38480f092763N.exe
Size

94KB
MD5

a05e3883f557f5387142d4a6d0a37500
SHA1

8535d09ef996f6afecda4403d4d1099697d4a7e7
SHA256

bb09de324bb92b3302aa7f5c1328d1d7a54209d2f4980ca0f31b38480f092763
SHA512

73303d4ce6f306faad6c6182884635fad6c8d12f8139dd89b064c82a71edb8c3d0183a70b52c0b42b465b89467f966e3ab1552fcd82747612844167a42275cb1
SSDEEP

1536:skPjmPwvx3PtLBzGMlGO+eo+zCj4CFgjASG3KazRZICrWaGZh7LLx1E:skLmuftLBzfIOz4VSGaqJrWNZ1Lx1E

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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	bb09de324bb92b3302aa7f5c1328d1d7a54209d2f4980ca0f31b38480f092763N.exe

Executes dropped EXE 1 IoCs

pid	Process
1652	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"	bb09de324bb92b3302aa7f5c1328d1d7a54209d2f4980ca0f31b38480f092763N.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	bb09de324bb92b3302aa7f5c1328d1d7a54209d2f4980ca0f31b38480f092763N.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 872 wrote to memory of 1652	872	bb09de324bb92b3302aa7f5c1328d1d7a54209d2f4980ca0f31b38480f092763N.exe	89
PID 872 wrote to memory of 1652	872	bb09de324bb92b3302aa7f5c1328d1d7a54209d2f4980ca0f31b38480f092763N.exe	89
PID 872 wrote to memory of 1652	872	bb09de324bb92b3302aa7f5c1328d1d7a54209d2f4980ca0f31b38480f092763N.exe	89
PID 872 wrote to memory of 4348	872	bb09de324bb92b3302aa7f5c1328d1d7a54209d2f4980ca0f31b38480f092763N.exe	99
PID 872 wrote to memory of 4348	872	bb09de324bb92b3302aa7f5c1328d1d7a54209d2f4980ca0f31b38480f092763N.exe	99
PID 872 wrote to memory of 4348	872	bb09de324bb92b3302aa7f5c1328d1d7a54209d2f4980ca0f31b38480f092763N.exe	99

C:\Users\Admin\AppData\Local\Temp\bb09de324bb92b3302aa7f5c1328d1d7a54209d2f4980ca0f31b38480f092763N.exe
"C:\Users\Admin\AppData\Local\Temp\bb09de324bb92b3302aa7f5c1328d1d7a54209d2f4980ca0f31b38480f092763N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:872
- C:\ProgramData\Update\Wwansvc.exe
  "C:\ProgramData\Update\Wwansvc.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1652
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\bb09de324bb92b3302aa7f5c1328d1d7a54209d2f4980ca0f31b38480f092763N.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4348

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4448,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=4412 /prefetch:8
1⤵
PID:1188

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
9d3bfebac504f9ca664d241858b35140

SHA1
29bd4cf296a1b9a20441fa7bd137fa1799328066

SHA256
3264f9da6d4d9ccda569094b721e2dd1d737f4756a3189812c3817da77bc7894

SHA512
876af548044276f8d7f0c3c59c51a765b46574f600a4fefda161b8b8ad4d4676457dfe3b9de4fecffc39c9a9283dfa5a8ca25191486f1ac04d768739576c3d33

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads