b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9

Analysis

max time kernel
94s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04-10-2024 23:52

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General

Target

b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
Size

191KB
MD5

fe77d628901694a44391928b9eaa5ef0
SHA1

434e9891c36d767e90d9f004c18e9a0fe4c1de52
SHA256

b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9
SHA512

81ebb218f7e980c60a4e7f572d609c6aae9f124609c7ff8b1b18e8d925503e3de992e1a7eddec863dcf73416eea31a2ae90906e12fb56c8890296703385fc9c2
SSDEEP

3072:I82162ffD2O2U9PGAZRc8SDdw0Gd3gbPD2gGm8IRZjB2tC0r5Lvet++6Qqwkv4rb:I8G6ufD7pPbc7pn8QbPDVZ3RD+C0la6B

Score

10^/10

discovery evasion persistence

Malware Config

Signatures

Modifies firewall policy service 3 TTPs 4 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Local\Temp\b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe:*:Enabled:Print Spooler"	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe

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	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe

Executes dropped EXE 1 IoCs

pid	Process
3576	spooler.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\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Print Spooler = "C:\\Users\\Admin\\AppData\\Roaming\\spooler.exe"	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe

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 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spooler.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
3576	spooler.exe
3576	spooler.exe
3576	spooler.exe
3576	spooler.exe
3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3864 wrote to memory of 3524	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	56
PID 3864 wrote to memory of 3524	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	56
PID 3864 wrote to memory of 3524	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	56
PID 3864 wrote to memory of 2564	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	44
PID 3864 wrote to memory of 2564	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	44
PID 3864 wrote to memory of 2564	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	44
PID 3864 wrote to memory of 2588	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	45
PID 3864 wrote to memory of 2588	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	45
PID 3864 wrote to memory of 2588	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	45
PID 3864 wrote to memory of 2788	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	47
PID 3864 wrote to memory of 2788	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	47
PID 3864 wrote to memory of 2788	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	47
PID 3864 wrote to memory of 3524	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	56
PID 3864 wrote to memory of 3524	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	56
PID 3864 wrote to memory of 3524	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	56
PID 3864 wrote to memory of 3672	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	57
PID 3864 wrote to memory of 3672	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	57
PID 3864 wrote to memory of 3672	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	57
PID 3864 wrote to memory of 3848	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	58
PID 3864 wrote to memory of 3848	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	58
PID 3864 wrote to memory of 3848	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	58
PID 3864 wrote to memory of 3940	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	59
PID 3864 wrote to memory of 3940	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	59
PID 3864 wrote to memory of 3940	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	59
PID 3864 wrote to memory of 4004	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	60
PID 3864 wrote to memory of 4004	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	60
PID 3864 wrote to memory of 4004	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	60
PID 3864 wrote to memory of 4088	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	61
PID 3864 wrote to memory of 4088	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	61
PID 3864 wrote to memory of 4088	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	61
PID 3864 wrote to memory of 3700	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	62
PID 3864 wrote to memory of 3700	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	62
PID 3864 wrote to memory of 3700	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	62
PID 3864 wrote to memory of 2688	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	75
PID 3864 wrote to memory of 2688	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	75
PID 3864 wrote to memory of 2688	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	75
PID 3864 wrote to memory of 3220	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	76
PID 3864 wrote to memory of 3220	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	76
PID 3864 wrote to memory of 3220	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	76
PID 3864 wrote to memory of 3576	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	82
PID 3864 wrote to memory of 3576	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	82
PID 3864 wrote to memory of 3576	3864	b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe	82
PID 3576 wrote to memory of 3524	3576	spooler.exe	56
PID 3576 wrote to memory of 3524	3576	spooler.exe	56
PID 3576 wrote to memory of 3524	3576	spooler.exe	56
PID 3576 wrote to memory of 2564	3576	spooler.exe	44
PID 3576 wrote to memory of 2564	3576	spooler.exe	44
PID 3576 wrote to memory of 2564	3576	spooler.exe	44
PID 3576 wrote to memory of 2588	3576	spooler.exe	45
PID 3576 wrote to memory of 2588	3576	spooler.exe	45
PID 3576 wrote to memory of 2588	3576	spooler.exe	45
PID 3576 wrote to memory of 2788	3576	spooler.exe	47
PID 3576 wrote to memory of 2788	3576	spooler.exe	47
PID 3576 wrote to memory of 2788	3576	spooler.exe	47
PID 3576 wrote to memory of 3524	3576	spooler.exe	56
PID 3576 wrote to memory of 3524	3576	spooler.exe	56
PID 3576 wrote to memory of 3524	3576	spooler.exe	56
PID 3576 wrote to memory of 3672	3576	spooler.exe	57
PID 3576 wrote to memory of 3672	3576	spooler.exe	57
PID 3576 wrote to memory of 3672	3576	spooler.exe	57
PID 3576 wrote to memory of 3848	3576	spooler.exe	58
PID 3576 wrote to memory of 3848	3576	spooler.exe	58
PID 3576 wrote to memory of 3848	3576	spooler.exe	58
PID 3576 wrote to memory of 3940	3576	spooler.exe	59

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2564

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2588

C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
1⤵
PID:2788

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3524
- C:\Users\Admin\AppData\Local\Temp\b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe
  "C:\Users\Admin\AppData\Local\Temp\b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9N.exe"
  2⤵
  - Modifies firewall policy service
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:3864
- - C:\Users\Admin\AppData\Roaming\spooler.exe
    "C:\Users\Admin\AppData\Roaming\spooler.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3576

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:3672

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:3848

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:3940

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:4004

C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
1⤵
PID:4088

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3700

C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe
"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca
1⤵
PID:2688

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3220

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\spooler.exe

Filesize
191KB

MD5
fe77d628901694a44391928b9eaa5ef0

SHA1
434e9891c36d767e90d9f004c18e9a0fe4c1de52

SHA256
b9fea94be4dc076112d393ae7aa81e9e254b38e1c1c12f852d853355179b89a9

SHA512
81ebb218f7e980c60a4e7f572d609c6aae9f124609c7ff8b1b18e8d925503e3de992e1a7eddec863dcf73416eea31a2ae90906e12fb56c8890296703385fc9c2

Download Submit
memory/3524-2-0x000000007FFC0000-0x000000007FFD1000-memory.dmp

Filesize
68KB

Download
memory/3524-4-0x000000007FFF0000-0x000000007FFF1000-memory.dmp

Filesize
4KB

Download
memory/3524-3-0x000000007FF90000-0x000000007FFC0000-memory.dmp

Filesize
192KB

Download
memory/3576-46-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3576-61-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3864-0-0x0000000000407000-0x0000000000409000-memory.dmp

Filesize
8KB

Download
memory/3864-1-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3864-44-0x000000007FE00000-0x000000007FE11000-memory.dmp

Filesize
68KB

Download