23be2a96f4c15306083c180774452e11f42837e297627cd33ad5a9708953cd4c

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-11-2024 17:48

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General

Target

INV-0542.pdf.exe
Size

902KB
MD5

fa02056b1a21f75efabdda81219fb7db
SHA1

3e8dd711bfef09d2db54af75476765d85693c756
SHA256

23be2a96f4c15306083c180774452e11f42837e297627cd33ad5a9708953cd4c
SHA512

af4c4a9d7e6ede0026548136fa4b7c37f8298d055a835a56baf9795bc5b0b3a034a5e2dd2592476c3479fe8b23da338ad615144a91a61b3a47dd6bee00de8088
SSDEEP

24576:ZX22KSCC4VSi/kKJfaklq2E3l8Et2F2Yurik:9ylCQLJfaklc3uEtUWT

Score

4^/10

discovery execution

Malware Config

Signatures

Drops file in Windows directory 1 IoCs

Processes:

INV-0542.pdf.exe

description	ioc	Process
File created	C:\Windows\huzzah.lnk	INV-0542.pdf.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

Processes:

powershell.exe

pid	Process
1256	powershell.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:

INV-0542.pdf.exepowershell.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	INV-0542.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid	Process
1256	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	1256	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

INV-0542.pdf.exe

description	pid	Process	procid_target
PID 2500 wrote to memory of 1256	2500	INV-0542.pdf.exe	30
PID 2500 wrote to memory of 1256	2500	INV-0542.pdf.exe	30
PID 2500 wrote to memory of 1256	2500	INV-0542.pdf.exe	30
PID 2500 wrote to memory of 1256	2500	INV-0542.pdf.exe	30

C:\Users\Admin\AppData\Local\Temp\INV-0542.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\INV-0542.pdf.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -windowstyle minimized "$Bnkerkken=Get-Content -Raw 'C:\Users\Admin\AppData\Roaming\interpellant\stimulere\Chemosis\Suborbiculated.Amb';$Burhne=$Bnkerkken.SubString(72926,3);.$Burhne($Bnkerkken)"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1256

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/1256-11-0x0000000073D71000-0x0000000073D72000-memory.dmp

Filesize
4KB

Download
memory/1256-12-0x0000000073D70000-0x000000007431B000-memory.dmp

Filesize
5.7MB

Download
memory/1256-14-0x0000000073D70000-0x000000007431B000-memory.dmp

Filesize
5.7MB

Download
memory/1256-13-0x0000000073D70000-0x000000007431B000-memory.dmp

Filesize
5.7MB

Download
memory/1256-15-0x0000000073D70000-0x000000007431B000-memory.dmp

Filesize
5.7MB

Download