c435512ffeb6eff6d961ed5689e5626bccf624cfdfb5b6b92658bb3af2413ebc

Analysis

max time kernel
118s
max time network
127s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
28/03/2025, 13:20

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General

Target

OVERDUE ACCOUNT LETTER- FINAL REMINDER.exe
Size

1.2MB
MD5

b3e91c314a64d5e8ddd4ca2110da055b
SHA1

1874ea6cc675b80ddcba84ffffa7eb7a0e4cea0c
SHA256

bbadbf3fdbbf1e1d3b0990bbd18ab566cc3028538d4fab8981d0f8505d44349a
SHA512

33febd63084d66ef0d7a9fd969057519d7ab7c75411729354e182a835ba080d77c1909a7231ba98abf83bae99ee6f46407ab8f92ab70165b0f620d6acac4519f
SSDEEP

24576:LB/p8ViCks35dyU5AjCAVCyCShbwlvsl4de9V:LBxnqAjzHhbeb+V

Score

7^/10

discovery

Malware Config

Signatures

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IsInvalid.vbs	OVERDUE ACCOUNT LETTER- FINAL REMINDER.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5624	3064	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 1 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	OVERDUE ACCOUNT LETTER- FINAL REMINDER.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3064	OVERDUE ACCOUNT LETTER- FINAL REMINDER.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3064	OVERDUE ACCOUNT LETTER- FINAL REMINDER.exe
Token: SeDebugPrivilege	3064	OVERDUE ACCOUNT LETTER- FINAL REMINDER.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 5624	3064	OVERDUE ACCOUNT LETTER- FINAL REMINDER.exe	30
PID 3064 wrote to memory of 5624	3064	OVERDUE ACCOUNT LETTER- FINAL REMINDER.exe	30
PID 3064 wrote to memory of 5624	3064	OVERDUE ACCOUNT LETTER- FINAL REMINDER.exe	30
PID 3064 wrote to memory of 5624	3064	OVERDUE ACCOUNT LETTER- FINAL REMINDER.exe	30

C:\Users\Admin\AppData\Local\Temp\OVERDUE ACCOUNT LETTER- FINAL REMINDER.exe
"C:\Users\Admin\AppData\Local\Temp\OVERDUE ACCOUNT LETTER- FINAL REMINDER.exe"
1⤵
- Drops startup file
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3064 -s 700
  2⤵
  - Program crash
  PID:5624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/3064-0-0x0000000073F5E000-0x0000000073F5F000-memory.dmp

Filesize
4KB

Download
memory/3064-1-0x00000000011C0000-0x00000000012FA000-memory.dmp

Filesize
1.2MB

Download
memory/3064-2-0x0000000004980000-0x0000000004A96000-memory.dmp

Filesize
1.1MB

Download
memory/3064-3-0x0000000073F50000-0x000000007463E000-memory.dmp

Filesize
6.9MB

Download
memory/3064-4-0x0000000005180000-0x0000000005294000-memory.dmp

Filesize
1.1MB

Download
memory/3064-5-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-6-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-8-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-10-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-12-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-16-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-14-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-22-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-28-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-30-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-36-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-38-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-34-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-32-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-26-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-24-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-20-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-18-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-42-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-40-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-64-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-48-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-46-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-54-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-52-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-50-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-44-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-60-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-58-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-56-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-68-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-66-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-62-0x0000000005180000-0x000000000528E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-1341-0x0000000073F50000-0x000000007463E000-memory.dmp

Filesize
6.9MB

Download
memory/3064-1342-0x0000000004900000-0x000000000496C000-memory.dmp

Filesize
432KB

Download
memory/3064-1343-0x0000000004AE0000-0x0000000004B4A000-memory.dmp

Filesize
424KB

Download
memory/3064-1344-0x0000000004CF0000-0x0000000004D3C000-memory.dmp

Filesize
304KB

Download
memory/3064-1345-0x0000000073F5E000-0x0000000073F5F000-memory.dmp

Filesize
4KB

Download
memory/3064-1346-0x0000000073F50000-0x000000007463E000-memory.dmp

Filesize
6.9MB

Download
memory/3064-1347-0x0000000073F50000-0x000000007463E000-memory.dmp

Filesize
6.9MB

Download
memory/3064-1348-0x0000000004D40000-0x0000000004D94000-memory.dmp

Filesize
336KB

Download
memory/3064-1351-0x0000000073F50000-0x000000007463E000-memory.dmp

Filesize
6.9MB

Download