6a36e42b5f37966859fa9750eedb4ffc571653a5acbd610854145205a41ee2e9

Analysis

max time kernel
120s
max time network
95s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
05/09/2024, 16:13

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General

Target

31e903544870c656040e9aec02cc6430N.exe
Size

58KB
MD5

31e903544870c656040e9aec02cc6430
SHA1

ef7664ed85b40fe3538e3693af2481db91cc6d29
SHA256

6a36e42b5f37966859fa9750eedb4ffc571653a5acbd610854145205a41ee2e9
SHA512

e8ae31d6ba93b18ab43f3d3a82b10b1a7e3fa3240622a4f9f12275b885fd3726613644808d7ea95b0171afd7b7f3bb50ebe2a340464d82fa4ff4d4fb8c18bfdc
SSDEEP

768:/+tAoVybMY3m0q0TGneGaJZtyldCQ7o8yyo4YNgX0zW9vQkEBw6MnYFDXJ5wh3O7:/+tzybMVr2GeVLcbo8i4j0yhPnm2Xnz

Score

10^/10

discovery persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\cache.dat"	svchost.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2756	31e903544870c656040e9aec02cc6430N.exe
2704	svchost.exe

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ctfmon.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe
2704	svchost.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2756	31e903544870c656040e9aec02cc6430N.exe
2756	31e903544870c656040e9aec02cc6430N.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2704	svchost.exe
2704	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2704 wrote to memory of 2892	2704	svchost.exe	32
PID 2704 wrote to memory of 2892	2704	svchost.exe	32
PID 2704 wrote to memory of 2892	2704	svchost.exe	32
PID 2704 wrote to memory of 2892	2704	svchost.exe	32

C:\Users\Admin\AppData\Local\Temp\31e903544870c656040e9aec02cc6430N.exe
"C:\Users\Admin\AppData\Local\Temp\31e903544870c656040e9aec02cc6430N.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: MapViewOfSection
PID:2756

C:\Windows\syswow64\svchost.exe
"C:\Windows\syswow64\svchost.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2704
- C:\Windows\SysWOW64\ctfmon.exe
  ctfmon.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

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/1124-7-0x0000000077AB0000-0x0000000077C59000-memory.dmp

Filesize
1.7MB

Download
memory/1124-8-0x00000000025B0000-0x00000000025B8000-memory.dmp

Filesize
32KB

Download
memory/2704-27-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2704-9-0x00000000000C0000-0x00000000000C8000-memory.dmp

Filesize
32KB

Download
memory/2704-29-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/2704-20-0x00000000000C0000-0x00000000000C8000-memory.dmp

Filesize
32KB

Download
memory/2704-24-0x00000000000C0000-0x00000000000C8000-memory.dmp

Filesize
32KB

Download
memory/2704-25-0x00000000001A0000-0x00000000001A1000-memory.dmp

Filesize
4KB

Download
memory/2704-18-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/2704-13-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2704-12-0x0000000077CB0000-0x0000000077CB1000-memory.dmp

Filesize
4KB

Download
memory/2704-16-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2704-26-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download
memory/2704-17-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2704-19-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2704-15-0x0000000000190000-0x0000000000191000-memory.dmp

Filesize
4KB

Download
memory/2704-14-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2756-1-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2756-0-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2756-3-0x0000000000290000-0x00000000002A9000-memory.dmp

Filesize
100KB

Download
memory/2756-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2756-6-0x0000000000290000-0x00000000002A9000-memory.dmp

Filesize
100KB

Download
memory/2756-5-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2756-4-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download