bcd2af5fd6fdac5f0bdfcc38acbaa7d941a30cc75004c1f10731d6ad9efa7632

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09/11/2024, 04:34

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General

Target
New PO [FK4-7173].pdf.exe
Size 875KB
Sample241109-e64afsxfrc
SHA256 bcd2af5fd6fdac5f0bdfcc38acbaa7d941a30cc75004c1f10731d6ad9efa7632
MD5 f946f99df4c8406ba19b70561c1d53f6
SHA1 fdce6ff15295a31ff37c517b90f466e37e272cfd
SHA512 b7fea932f40954ed577b3c7b65170bad5ec2dc0fbafd051e6c28a49d0ae9a9ebc999081aca0253dc389edb89b7f9e59e2f9add10b190c30b23c4cdc66bb4e073
SSDEEP 24576:cBBFvHn4ozNfXSQL+yNbbFSDrDd47DItfVr69ME:6zvHn4ozNSAJEDrDd0DItf4ME
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

discovery execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2704	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2920 set thread context of 2876	2920	New PO [FK4-7173].pdf.exe	32

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	New PO [FK4-7173].pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2704	powershell.exe
2876	New PO [FK4-7173].pdf.exe
2876	New PO [FK4-7173].pdf.exe
2876	New PO [FK4-7173].pdf.exe
2876	New PO [FK4-7173].pdf.exe
2876	New PO [FK4-7173].pdf.exe
2876	New PO [FK4-7173].pdf.exe
2876	New PO [FK4-7173].pdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2704	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2920 wrote to memory of 2704	2920	New PO [FK4-7173].pdf.exe	31
PID 2920 wrote to memory of 2704	2920	New PO [FK4-7173].pdf.exe	31
PID 2920 wrote to memory of 2704	2920	New PO [FK4-7173].pdf.exe	31
PID 2920 wrote to memory of 2704	2920	New PO [FK4-7173].pdf.exe	31
PID 2920 wrote to memory of 2876	2920	New PO [FK4-7173].pdf.exe	32
PID 2920 wrote to memory of 2876	2920	New PO [FK4-7173].pdf.exe	32
PID 2920 wrote to memory of 2876	2920	New PO [FK4-7173].pdf.exe	32
PID 2920 wrote to memory of 2876	2920	New PO [FK4-7173].pdf.exe	32
PID 2920 wrote to memory of 2876	2920	New PO [FK4-7173].pdf.exe	32
PID 2920 wrote to memory of 2876	2920	New PO [FK4-7173].pdf.exe	32
PID 2920 wrote to memory of 2876	2920	New PO [FK4-7173].pdf.exe	32

C:\Users\Admin\AppData\Local\Temp\New PO [FK4-7173].pdf.exe
"C:\Users\Admin\AppData\Local\Temp\New PO [FK4-7173].pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2920
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\New PO [FK4-7173].pdf.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2704
- C:\Users\Admin\AppData\Local\Temp\New PO [FK4-7173].pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\New PO [FK4-7173].pdf.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

memory/2876-13-0x0000000000400000-0x0000000000447000-memory.dmp

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memory/2876-9-0x0000000000400000-0x0000000000447000-memory.dmp

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memory/2876-18-0x0000000000400000-0x0000000000447000-memory.dmp

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memory/2876-17-0x0000000000400000-0x0000000000447000-memory.dmp

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memory/2876-8-0x0000000000400000-0x0000000000447000-memory.dmp

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memory/2876-12-0x0000000000400000-0x0000000000447000-memory.dmp

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memory/2876-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

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memory/2920-1-0x0000000000970000-0x0000000000A50000-memory.dmp

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memory/2920-5-0x00000000745AE000-0x00000000745AF000-memory.dmp

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memory/2920-7-0x0000000000430000-0x00000000004BE000-memory.dmp

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memory/2920-6-0x00000000745A0000-0x0000000074C8E000-memory.dmp

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memory/2920-4-0x00000000004D0000-0x00000000004EC000-memory.dmp

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memory/2920-0-0x00000000745AE000-0x00000000745AF000-memory.dmp

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memory/2920-14-0x00000000745A0000-0x0000000074C8E000-memory.dmp

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memory/2920-3-0x0000000004FF0000-0x00000000050C6000-memory.dmp

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memory/2920-2-0x00000000745A0000-0x0000000074C8E000-memory.dmp

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