8048b4f927577a5c07cc4ff07e79e0bb488e60a609032272e49477fbad027cc2

Analysis

max time kernel
139s
max time network
145s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
24-08-2024 17:34

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General

Target

3.5.exe
Size

840KB
MD5

520f70432265e8d3ac4ceab433b2b23f
SHA1

2fb91f27fee52f9b1064767707b3ca7852af7f52
SHA256

8048b4f927577a5c07cc4ff07e79e0bb488e60a609032272e49477fbad027cc2
SHA512

d92d4fca1bbd6ab9f70c06a4abe38c41b340a748c3f279ea624f006d1c189531173962210aba0cdf1a27c9d3f26e6c231a24878f88fd193fafcbb847f419e04f
SSDEEP

24576:kLxS04YNEMuExDiU6E5R9s8xY/2l/d5tnIbt+r0:+z4auS+UjfU2T5dIbt+r

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

AudioDriver.exe

pid	Process
2788	AudioDriver.exe

Loads dropped DLL 1 IoCs

Processes:

3.5.exe

pid	Process
2640	3.5.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

Processes:

3.5.exeAudioDriver.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3.5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

Processes:

AudioDriver.exe

pid	Process
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe
2788	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

AudioDriver.exe

description	pid	Process
Token: SeDebugPrivilege	2788	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AudioDriver.exe

pid	Process
2788	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

Processes:

AudioDriver.exe

pid	Process
2788	AudioDriver.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

AudioDriver.exe

pid	Process
2788	AudioDriver.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

3.5.exe

description	pid	Process	procid_target
PID 2640 wrote to memory of 2788	2640	3.5.exe	30
PID 2640 wrote to memory of 2788	2640	3.5.exe	30
PID 2640 wrote to memory of 2788	2640	3.5.exe	30
PID 2640 wrote to memory of 2788	2640	3.5.exe	30

C:\Users\Admin\AppData\Local\Temp\3.5.exe
"C:\Users\Admin\AppData\Local\Temp\3.5.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2640
- C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:2788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\Microsoft\Speech\AudioDriver.exe

Filesize
840KB

MD5
520f70432265e8d3ac4ceab433b2b23f

SHA1
2fb91f27fee52f9b1064767707b3ca7852af7f52

SHA256
8048b4f927577a5c07cc4ff07e79e0bb488e60a609032272e49477fbad027cc2

SHA512
d92d4fca1bbd6ab9f70c06a4abe38c41b340a748c3f279ea624f006d1c189531173962210aba0cdf1a27c9d3f26e6c231a24878f88fd193fafcbb847f419e04f

Download Submit
memory/2640-0-0x0000000074621000-0x0000000074622000-memory.dmp

Filesize
4KB

Download
memory/2640-1-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2640-2-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2640-12-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2788-13-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2788-14-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2788-15-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2788-16-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download