3f826d6a40afb67d5ff29a307cbf0c95ad68a1716ca838cc78fdde7ada78de25

Analysis

max time kernel
152s
max time network
125s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
06/12/2022, 10:35

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General

Target

3f826d6a40afb67d5ff29a307cbf0c95ad68a1716ca838cc78fdde7ada78de25.exe
Size

75KB
MD5

f58be2328792d13e1a9d926d291852f2
SHA1

91e5d25c4879b111e1101fe78cf0ba28fbf17240
SHA256

3f826d6a40afb67d5ff29a307cbf0c95ad68a1716ca838cc78fdde7ada78de25
SHA512

5bfdb0d8debdbd496008e0e6094bd4110bf106f227ec4bed86ac60c8aead03890cf57ec9f74ba1fa888337c054791143b5b46d0d347aaeb33d379f3df0a89b5f
SSDEEP

1536:B6IfYyrbPCLAY6acU95xO0KcmtCG+XHyl/ZDDDDDDDDD:B6If7rbPCL7689C0KUIDDDDDDDDD

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\Other.res"	svchost.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1700	3f826d6a40afb67d5ff29a307cbf0c95ad68a1716ca838cc78fdde7ada78de25.exe
892	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe
892	svchost.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1700	3f826d6a40afb67d5ff29a307cbf0c95ad68a1716ca838cc78fdde7ada78de25.exe
1700	3f826d6a40afb67d5ff29a307cbf0c95ad68a1716ca838cc78fdde7ada78de25.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
892	svchost.exe
892	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 892 wrote to memory of 1120	892	svchost.exe	28
PID 892 wrote to memory of 1120	892	svchost.exe	28
PID 892 wrote to memory of 1120	892	svchost.exe	28
PID 892 wrote to memory of 1120	892	svchost.exe	28

C:\Users\Admin\AppData\Local\Temp\3f826d6a40afb67d5ff29a307cbf0c95ad68a1716ca838cc78fdde7ada78de25.exe
"C:\Users\Admin\AppData\Local\Temp\3f826d6a40afb67d5ff29a307cbf0c95ad68a1716ca838cc78fdde7ada78de25.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: MapViewOfSection
PID:1700

C:\Windows\syswow64\svchost.exe
"C:\Windows\syswow64\svchost.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:892
- C:\Windows\SysWOW64\ctfmon.exe
  ctfmon.exe
  2⤵
  PID:1120

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/892-57-0x0000000074E41000-0x0000000074E43000-memory.dmp

Filesize
8KB

Download
memory/1280-58-0x00000000029A0000-0x00000000029A9000-memory.dmp

Filesize
36KB

Download
memory/1280-59-0x0000000076DC0000-0x0000000076F69000-memory.dmp

Filesize
1.7MB

Download
memory/1280-60-0x0000000076DC0000-0x0000000076F69000-memory.dmp

Filesize
1.7MB

Download
memory/1700-54-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1700-55-0x00000000002A0000-0x00000000002D0000-memory.dmp

Filesize
192KB

Download
memory/1700-56-0x00000000002A0000-0x00000000002D0000-memory.dmp

Filesize
192KB

Download