d9fb1b7e71358e78db856d1e848c640b4879f989f0bec3d70f3be0a74a9c5552

Analysis

max time kernel
21s
max time network
116s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15/09/2024, 03:57

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General

Target

df20ca57c8eb53090fa730f7c4f0af90N.exe
Size

814KB
MD5

df20ca57c8eb53090fa730f7c4f0af90
SHA1

a1c6fa2e4f12b077a07ac03c67c551f325f2398d
SHA256

d9fb1b7e71358e78db856d1e848c640b4879f989f0bec3d70f3be0a74a9c5552
SHA512

94e9be1f656710d4f7327c49a51bb234189379db92c7c20012f08e7670a17e0a4c05d7e78db33e89d871062821ebacd3ee6e8f8f81636149843cc32ec22c1824
SSDEEP

24576:mRmJkcoQricOIQxiZY1iaoRpP5lCI6BeNCa:jJZoQrbTFZY1iao/5rse4a

Score

8^/10

discovery persistence

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	df20ca57c8eb53090fa730f7c4f0af90N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\bs_stealth = "C:\\Users\\Admin\\AppData\\Roaming\\bs_stealth.exe"	df20ca57c8eb53090fa730f7c4f0af90N.exe
Key created	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	df20ca57c8eb53090fa730f7c4f0af90N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\bs_stealth = "C:\\Users\\Admin\\AppData\\Roaming\\bs_stealth.exe"	df20ca57c8eb53090fa730f7c4f0af90N.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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bs_stealth = "C:\\Users\\Admin\\AppData\\Roaming\\bs_stealth.exe"	df20ca57c8eb53090fa730f7c4f0af90N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4512 set thread context of 4000	4512	df20ca57c8eb53090fa730f7c4f0af90N.exe	85

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	df20ca57c8eb53090fa730f7c4f0af90N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	df20ca57c8eb53090fa730f7c4f0af90N.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4000	df20ca57c8eb53090fa730f7c4f0af90N.exe
Token: 33	3156	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	3156	AUDIODG.EXE

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4000	df20ca57c8eb53090fa730f7c4f0af90N.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4512 wrote to memory of 4000	4512	df20ca57c8eb53090fa730f7c4f0af90N.exe	85
PID 4512 wrote to memory of 4000	4512	df20ca57c8eb53090fa730f7c4f0af90N.exe	85
PID 4512 wrote to memory of 4000	4512	df20ca57c8eb53090fa730f7c4f0af90N.exe	85
PID 4512 wrote to memory of 4000	4512	df20ca57c8eb53090fa730f7c4f0af90N.exe	85
PID 4512 wrote to memory of 4000	4512	df20ca57c8eb53090fa730f7c4f0af90N.exe	85
PID 4512 wrote to memory of 4000	4512	df20ca57c8eb53090fa730f7c4f0af90N.exe	85
PID 4512 wrote to memory of 4000	4512	df20ca57c8eb53090fa730f7c4f0af90N.exe	85
PID 4512 wrote to memory of 4000	4512	df20ca57c8eb53090fa730f7c4f0af90N.exe	85

C:\Users\Admin\AppData\Local\Temp\df20ca57c8eb53090fa730f7c4f0af90N.exe
"C:\Users\Admin\AppData\Local\Temp\df20ca57c8eb53090fa730f7c4f0af90N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4512
- C:\Users\Admin\AppData\Local\Temp\df20ca57c8eb53090fa730f7c4f0af90N.exe
  "C:\Users\Admin\AppData\Local\Temp\df20ca57c8eb53090fa730f7c4f0af90N.exe"
  2⤵
  - Adds policy Run key to start application
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4000

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x304 0x384
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3156

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

Modify Registry

T1112

Credential Access

Discovery

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

memory/4000-0-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/4000-2-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/4000-3-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/4000-4-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/4000-6-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/4000-7-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/4000-9-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads