7e4b3a54d7e22644051f40c3d631f4502093fc88913151761921b1fa4f50f1b1

Analysis

max time kernel
159s
max time network
177s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01/01/2024, 11:13

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General

Target

3cb25b1e2019a0194a23c6d8e767228c.exe
Size

81KB
MD5

3cb25b1e2019a0194a23c6d8e767228c
SHA1

c4ca2261a852636617e047aedd57fe2c163efbdc
SHA256

7e4b3a54d7e22644051f40c3d631f4502093fc88913151761921b1fa4f50f1b1
SHA512

09e86840063485d43019a093ba66f07532bb666e3c3fd42c29d81a1dfe175ef7747d1b63692c2a70a5db2871f7d880fb0c0f44bee8f3763cdf4ae7633eb8d703
SSDEEP

1536:UT282Mk63APgjG0KPtyUlasodThq8PL+B8SUIcaf13A7NdPK:UC8hD+gjGPlyHsIhTT+HcaSLK

Score

7^/10

persistence upx

Malware Config

Signatures

UPX packed file 56 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1704-0-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-7-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-20-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-30-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-37-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-44-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-53-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-57-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/1704-58-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-56-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-54-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-55-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-52-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-51-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-50-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-49-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-48-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-47-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-46-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-45-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-43-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-42-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-41-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-40-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-39-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-38-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-36-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-35-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-34-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-33-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-32-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-31-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-29-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-28-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-27-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-26-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-25-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-24-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-23-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-22-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-19-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-18-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-17-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-16-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-15-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-14-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-13-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-12-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-11-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-10-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-9-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-8-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-6-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-5-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-4-0x0000000013150000-0x0000000013188000-memory.dmp	upx
behavioral2/memory/3368-3-0x0000000013150000-0x0000000013188000-memory.dmp	upx

Modifies WinLogon 2 TTPs 6 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\crypt	3cb25b1e2019a0194a23c6d8e767228c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify	3cb25b1e2019a0194a23c6d8e767228c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\crypt\StartShell = "Run"	3cb25b1e2019a0194a23c6d8e767228c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\crypt\Impersonate = "1"	3cb25b1e2019a0194a23c6d8e767228c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\crypt\DLLName = "crypts.dll"	3cb25b1e2019a0194a23c6d8e767228c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\crypt\Asynchronous = "1"	3cb25b1e2019a0194a23c6d8e767228c.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\crypts.dll	3cb25b1e2019a0194a23c6d8e767228c.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1704	3cb25b1e2019a0194a23c6d8e767228c.exe
1704	3cb25b1e2019a0194a23c6d8e767228c.exe

Suspicious use of WriteProcessMemory 56 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45
PID 1704 wrote to memory of 3368	1704	3cb25b1e2019a0194a23c6d8e767228c.exe	45

C:\Users\Admin\AppData\Local\Temp\3cb25b1e2019a0194a23c6d8e767228c.exe
"C:\Users\Admin\AppData\Local\Temp\3cb25b1e2019a0194a23c6d8e767228c.exe"
1⤵
- Modifies WinLogon
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1704

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3368

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1704-0-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/1704-58-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-7-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-20-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-30-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-37-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-44-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-53-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-57-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-56-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-54-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-55-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-52-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-51-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-50-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-49-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-48-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-47-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-46-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-45-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-43-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-42-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-41-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-40-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-39-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-38-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-36-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-35-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-34-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-33-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-32-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-31-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-29-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-28-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-27-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-26-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-25-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-24-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-23-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-22-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-19-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-18-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-17-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-16-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-15-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-14-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-13-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-12-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-11-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-10-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-9-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-8-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-6-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-5-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-4-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-3-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download
memory/3368-2-0x0000000013150000-0x0000000013188000-memory.dmp

Filesize
224KB

Download