8c91dbc3e4dbb2931374d7ce7604d747eaa75466229f9e56d9854150a4b284f1

Analysis

max time kernel
149s
max time network
139s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
31-08-2024 18:07

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General

Target

FalconV1.7/Falcon.exe
Size

2.1MB
MD5

005e76ae2d3af2cc2a001745d5e0afd9
SHA1

fa117b48f316b38db20887ba9b0138a07d686064
SHA256

a427b998ac966b5f8a4ec510205b075cfe7eaa102ac1d9e1ac0182a54cb33d2c
SHA512

2e5bb3e7d95230c012014184bb29ddbd56328fc8d63738ebf50923d5e86461d2f2511c32ca930d23eeec81b4a0d4ad54a4be0c782dfe01904a276a74636a1e8b
SSDEEP

49152:ftBEvg4rSx4YYKOvp+QoqkxR/NPmmRFyxGFrEN0FN63lSY:fQvg4G6YDxQoqkxBNPXmUylD

Score

7^/10

discovery execution persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

Falcon.exeFalcon.exe

pid process

8132 Falcon.exe
8180 Falcon.exe
Loads dropped DLL 2 IoCs

Processes:

Falcon.exe

pid process

2592 Falcon.exe
2592 Falcon.exe

pid	process
8132	Falcon.exe
8180	Falcon.exe

pid	process
2592	Falcon.exe
2592	Falcon.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Falcon.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ntuser = "\"C:\\Users\\Admin\\AppData\\Roaming\\Ntuser.exe\""	Falcon.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

8104 powershell.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

Falcon.exe

pid process

8180 Falcon.exe
8180 Falcon.exe
8180 Falcon.exe
8180 Falcon.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

Falcon.exe

description pid process target process

PID 2592 set thread context of 8180 2592 Falcon.exe Falcon.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
8104	powershell.exe

pid	process
8180	Falcon.exe
8180	Falcon.exe
8180	Falcon.exe
8180	Falcon.exe

description	pid	process	target process
PID 2592 set thread context of 8180	2592	Falcon.exe	Falcon.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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:

Falcon.exeWScript.exepowershell.exeFalcon.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Falcon.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Falcon.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

Falcon.exepowershell.exe

pid process

2592 Falcon.exe
2592 Falcon.exe
2592 Falcon.exe
2592 Falcon.exe
2592 Falcon.exe
2592 Falcon.exe
8104 powershell.exe

pid	process
2592	Falcon.exe
2592	Falcon.exe
2592	Falcon.exe
2592	Falcon.exe
2592	Falcon.exe
2592	Falcon.exe
8104	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

Falcon.exepowershell.exeFalcon.exe

description	pid	process
Token: SeDebugPrivilege	2592	Falcon.exe
Token: SeDebugPrivilege	8104	powershell.exe
Token: SeDebugPrivilege	8180	Falcon.exe
Token: SeShutdownPrivilege	8180	Falcon.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

Falcon.exe

pid process

8180 Falcon.exe
8180 Falcon.exe

pid	process
8180	Falcon.exe
8180	Falcon.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

Falcon.exeWScript.exe

description	pid	process	target process
PID 2592 wrote to memory of 8056	2592	Falcon.exe	WScript.exe
PID 2592 wrote to memory of 8056	2592	Falcon.exe	WScript.exe
PID 2592 wrote to memory of 8056	2592	Falcon.exe	WScript.exe
PID 2592 wrote to memory of 8056	2592	Falcon.exe	WScript.exe
PID 8056 wrote to memory of 8104	8056	WScript.exe	powershell.exe
PID 8056 wrote to memory of 8104	8056	WScript.exe	powershell.exe
PID 8056 wrote to memory of 8104	8056	WScript.exe	powershell.exe
PID 8056 wrote to memory of 8104	8056	WScript.exe	powershell.exe
PID 2592 wrote to memory of 8132	2592	Falcon.exe	Falcon.exe
PID 2592 wrote to memory of 8132	2592	Falcon.exe	Falcon.exe
PID 2592 wrote to memory of 8132	2592	Falcon.exe	Falcon.exe
PID 2592 wrote to memory of 8132	2592	Falcon.exe	Falcon.exe
PID 2592 wrote to memory of 8180	2592	Falcon.exe	Falcon.exe
PID 2592 wrote to memory of 8180	2592	Falcon.exe	Falcon.exe
PID 2592 wrote to memory of 8180	2592	Falcon.exe	Falcon.exe
PID 2592 wrote to memory of 8180	2592	Falcon.exe	Falcon.exe
PID 2592 wrote to memory of 8180	2592	Falcon.exe	Falcon.exe
PID 2592 wrote to memory of 8180	2592	Falcon.exe	Falcon.exe
PID 2592 wrote to memory of 8180	2592	Falcon.exe	Falcon.exe
PID 2592 wrote to memory of 8180	2592	Falcon.exe	Falcon.exe
PID 2592 wrote to memory of 8180	2592	Falcon.exe	Falcon.exe
PID 2592 wrote to memory of 8180	2592	Falcon.exe	Falcon.exe
PID 2592 wrote to memory of 8180	2592	Falcon.exe	Falcon.exe
PID 2592 wrote to memory of 8180	2592	Falcon.exe	Falcon.exe

C:\Users\Admin\AppData\Local\Temp\FalconV1.7\Falcon.exe
"C:\Users\Admin\AppData\Local\Temp\FalconV1.7\Falcon.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2592
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\_Lvzjypcn.vbs"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:8056
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -ExclusionPath C:\,'C:\Users\Admin\AppData\Roaming\Ntuser.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:8104
- C:\Users\Admin\AppData\Local\Temp\Falcon.exe
  C:\Users\Admin\AppData\Local\Temp\Falcon.exe
  2⤵
  - Executes dropped EXE
  PID:8132
- C:\Users\Admin\AppData\Local\Temp\Falcon.exe
  C:\Users\Admin\AppData\Local\Temp\Falcon.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:8180

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\_Lvzjypcn.vbs

Filesize
136B

MD5
24131be6e84c424a31423a9daa683b01

SHA1
38ae56938aa4fd963f066287b4190c929388e074

SHA256
1fe2a89a827cbe4ef046ca27f4d38c1ef1fbe889901f3946a4b7e1d4005cbde7

SHA512
5e0cb79ec9ed8836570393060e0b0f55b1a1a0446922e988913ed4ea4d67567a3a04e7d3a77c73dce596bd0eae530d07f0d2cf0f9cdf6b96001e1737d158704f

Download Submit
\Users\Admin\AppData\Local\Temp\Falcon.exe

Filesize
2.1MB

MD5
005e76ae2d3af2cc2a001745d5e0afd9

SHA1
fa117b48f316b38db20887ba9b0138a07d686064

SHA256
a427b998ac966b5f8a4ec510205b075cfe7eaa102ac1d9e1ac0182a54cb33d2c

SHA512
2e5bb3e7d95230c012014184bb29ddbd56328fc8d63738ebf50923d5e86461d2f2511c32ca930d23eeec81b4a0d4ad54a4be0c782dfe01904a276a74636a1e8b

Download Submit
memory/2592-44-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-70-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-4-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download
memory/2592-41-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-6-0x0000000004520000-0x000000000458A000-memory.dmp

Filesize
424KB

Download
memory/2592-36-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-26-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-38-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-66-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-64-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-62-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-60-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-58-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-56-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-54-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-50-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-48-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-47-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-0-0x0000000074D3E000-0x0000000074D3F000-memory.dmp

Filesize
4KB

Download
memory/2592-42-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-5-0x0000000008790000-0x000000000899A000-memory.dmp

Filesize
2.0MB

Download
memory/2592-3-0x0000000074D3E000-0x0000000074D3F000-memory.dmp

Filesize
4KB

Download
memory/2592-7-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-35-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-32-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-30-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-29-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-24-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-23-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-20-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-18-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-17-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-14-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-12-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-10-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-8-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-68-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-52-0x0000000004520000-0x0000000004583000-memory.dmp

Filesize
396KB

Download
memory/2592-2-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download
memory/2592-1-0x0000000000190000-0x00000000003AC000-memory.dmp

Filesize
2.1MB

Download
memory/2592-1854-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download