0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670

Analysis

max time kernel
167s
max time network
187s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2022, 15:15

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General

Target

0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe
Size

519KB
MD5

6099874d018c92bf33c1cbb05e33af60
SHA1

b2844a672c3fcb70ead5ae6011d52c4fd6732f7f
SHA256

0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670
SHA512

02931b0c7846ebfeb5c13d1b295c57a90f4b904864452c1d4e1e80ba38ff05b968426b4e694d39aaa9e6051cf3e977f5b08caff821e603a04756e918b9b4af44
SSDEEP

12288:BbTNIDJMtdv5tM+JDMokVk1e6WrGXbk4QVfq:/UovjfJpIWPhQc

Score

10^/10

aspackv2 persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe"	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe"	services.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x0006000000022e48-160.dat	aspack_v212_v242

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	services.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe

Executes dropped EXE 2 IoCs

pid	Process
2264	fservice.exe
3904	services.exe

Modifies Installed Components in the registry 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe"	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe"	services.exe

Loads dropped DLL 3 IoCs

pid	Process
3904	services.exe
3904	services.exe
3904	services.exe

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	services.exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\fservice.exe	services.exe
File created	C:\Windows\SysWOW64\fservice.exe	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe
File created	C:\Windows\SysWOW64\fservice.exe	fservice.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	fservice.exe
File created	C:\Windows\SysWOW64\winkey.dll	services.exe
File created	C:\Windows\SysWOW64\reginv.dll	services.exe

Drops file in Windows directory 7 IoCs

description	ioc	Process
File created	C:\Windows\system\sservice.exe	services.exe
File created	C:\Windows\system\sservice.exe	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe
File opened for modification	C:\Windows\system\sservice.exe	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe
File created	C:\Windows\services.exe	fservice.exe
File opened for modification	C:\Windows\services.exe	fservice.exe
File created	C:\Windows\system\sservice.exe	fservice.exe
File opened for modification	C:\Windows\system\sservice.exe	fservice.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4052	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe
4052	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe
2264	fservice.exe
2264	fservice.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe
3904	services.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3904	services.exe
3904	services.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4052 wrote to memory of 2264	4052	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe	83
PID 4052 wrote to memory of 2264	4052	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe	83
PID 4052 wrote to memory of 2264	4052	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe	83
PID 4052 wrote to memory of 372	4052	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe	84
PID 4052 wrote to memory of 372	4052	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe	84
PID 4052 wrote to memory of 372	4052	0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe	84
PID 2264 wrote to memory of 3904	2264	fservice.exe	86
PID 2264 wrote to memory of 3904	2264	fservice.exe	86
PID 2264 wrote to memory of 3904	2264	fservice.exe	86
PID 3904 wrote to memory of 1304	3904	services.exe	90
PID 3904 wrote to memory of 1304	3904	services.exe	90
PID 3904 wrote to memory of 1304	3904	services.exe	90
PID 3904 wrote to memory of 3032	3904	services.exe	91
PID 3904 wrote to memory of 3032	3904	services.exe	91
PID 3904 wrote to memory of 3032	3904	services.exe	91
PID 1304 wrote to memory of 4220	1304	NET.exe	94
PID 1304 wrote to memory of 4220	1304	NET.exe	94
PID 1304 wrote to memory of 4220	1304	NET.exe	94
PID 3032 wrote to memory of 3060	3032	NET.exe	96
PID 3032 wrote to memory of 3060	3032	NET.exe	96
PID 3032 wrote to memory of 3060	3032	NET.exe	96

C:\Users\Admin\AppData\Local\Temp\0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe
"C:\Users\Admin\AppData\Local\Temp\0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe"
1⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Modifies Installed Components in the registry
- Modifies WinLogon
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4052
- C:\Windows\SysWOW64\fservice.exe
  C:\Windows\system32\fservice.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2264
- - C:\Windows\services.exe
    C:\Windows\services.exe -XP
    3⤵
    - Modifies WinLogon for persistence
    - Adds policy Run key to start application
    - Executes dropped EXE
    - Modifies Installed Components in the registry
    - Loads dropped DLL
    - Modifies WinLogon
    - Drops file in System32 directory
    - Drops file in Windows directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3904
  - - C:\Windows\SysWOW64\NET.exe
      NET STOP srservice
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1304
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP srservice
        5⤵
        
        PID:4220
  - - C:\Windows\SysWOW64\NET.exe
      NET STOP navapsvc
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3032
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP navapsvc
        5⤵
        
        PID:3060
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe.bat
  2⤵
  PID:372

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

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

C:\Users\Admin\AppData\Local\Temp\0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670.exe.bat

Filesize
133B

MD5
87bc6e1ff2ebf88d931d67505af92ecb

SHA1
12c53defced20d275d23695ac45f70eee9a7209c

SHA256
b685674a4fe51e0c76d224971211672fe058089c2ca0fd473afa3ff27ec25cb0

SHA512
52ed9379b7cc8b230f9ce5352a55cd801b5f3a4f98b03002a2240eee30e76023e6fc8d23b5e00ca6cfd69431881263a4d87866560c078c5236c49af04a43fe35

Download Submit
C:\Windows\SysWOW64\fservice.exe

Filesize
519KB

MD5
6099874d018c92bf33c1cbb05e33af60

SHA1
b2844a672c3fcb70ead5ae6011d52c4fd6732f7f

SHA256
0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670

SHA512
02931b0c7846ebfeb5c13d1b295c57a90f4b904864452c1d4e1e80ba38ff05b968426b4e694d39aaa9e6051cf3e977f5b08caff821e603a04756e918b9b4af44

Download Submit
C:\Windows\SysWOW64\fservice.exe

Filesize
519KB

MD5
6099874d018c92bf33c1cbb05e33af60

SHA1
b2844a672c3fcb70ead5ae6011d52c4fd6732f7f

SHA256
0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670

SHA512
02931b0c7846ebfeb5c13d1b295c57a90f4b904864452c1d4e1e80ba38ff05b968426b4e694d39aaa9e6051cf3e977f5b08caff821e603a04756e918b9b4af44

Download Submit
C:\Windows\SysWOW64\reginv.dll

Filesize
36KB

MD5
562e0d01d6571fa2251a1e9f54c6cc69

SHA1
83677ad3bc630aa6327253c7b3deffbd4a8ce905

SHA256
c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

SHA512
166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

Download Submit
C:\Windows\SysWOW64\reginv.dll

Filesize
36KB

MD5
562e0d01d6571fa2251a1e9f54c6cc69

SHA1
83677ad3bc630aa6327253c7b3deffbd4a8ce905

SHA256
c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

SHA512
166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

Download Submit
C:\Windows\SysWOW64\winkey.dll

Filesize
13KB

MD5
b4c72da9fd1a0dcb0698b7da97daa0cd

SHA1
b25a79e8ea4c723c58caab83aed6ea48de7ed759

SHA256
45d266269634ba2de70f179a26d7224111e677e66b38dff2802851b71ce4458f

SHA512
f5f184416c5381d275bc093c9275e9fdb35c58e2c401d188aef097950013de6e43269da5d4dd5e7baea34735bd7de664d15fe487b2292fd66926c9845b0cd066

Download Submit
C:\Windows\services.exe

Filesize
519KB

MD5
6099874d018c92bf33c1cbb05e33af60

SHA1
b2844a672c3fcb70ead5ae6011d52c4fd6732f7f

SHA256
0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670

SHA512
02931b0c7846ebfeb5c13d1b295c57a90f4b904864452c1d4e1e80ba38ff05b968426b4e694d39aaa9e6051cf3e977f5b08caff821e603a04756e918b9b4af44

Download Submit
C:\Windows\services.exe

Filesize
519KB

MD5
6099874d018c92bf33c1cbb05e33af60

SHA1
b2844a672c3fcb70ead5ae6011d52c4fd6732f7f

SHA256
0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670

SHA512
02931b0c7846ebfeb5c13d1b295c57a90f4b904864452c1d4e1e80ba38ff05b968426b4e694d39aaa9e6051cf3e977f5b08caff821e603a04756e918b9b4af44

Download Submit
C:\Windows\system\sservice.exe

Filesize
519KB

MD5
6099874d018c92bf33c1cbb05e33af60

SHA1
b2844a672c3fcb70ead5ae6011d52c4fd6732f7f

SHA256
0bab94d1e6a5a8c736ef6631ba199496bd8ef2b4e89d6b8fb01be1527ea16670

SHA512
02931b0c7846ebfeb5c13d1b295c57a90f4b904864452c1d4e1e80ba38ff05b968426b4e694d39aaa9e6051cf3e977f5b08caff821e603a04756e918b9b4af44

Download Submit
memory/2264-145-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/2264-146-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/2264-155-0x0000000000720000-0x000000000074D000-memory.dmp

Filesize
180KB

Download
memory/2264-150-0x0000000000720000-0x000000000074D000-memory.dmp

Filesize
180KB

Download
memory/2264-149-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/2264-154-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/2264-140-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/2264-153-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/3904-162-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/3904-167-0x00000000007A1000-0x00000000007A5000-memory.dmp

Filesize
16KB

Download
memory/3904-156-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/3904-157-0x00000000007B0000-0x00000000007DD000-memory.dmp

Filesize
180KB

Download
memory/3904-158-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/3904-159-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/3904-172-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/3904-161-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/3904-171-0x00000000007B0000-0x00000000007DD000-memory.dmp

Filesize
180KB

Download
memory/3904-170-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4052-142-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4052-135-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4052-134-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4052-133-0x00000000023F0000-0x000000000241D000-memory.dmp

Filesize
180KB

Download
memory/4052-139-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4052-132-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4052-143-0x00000000023F0000-0x000000000241D000-memory.dmp

Filesize
180KB

Download