abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c

Analysis

max time kernel
169s
max time network
141s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29/11/2022, 13:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.exe
Size

342KB
MD5

3afc43bc88bb1f5682129d749322bc29
SHA1

c6acec4bcb17df09f8f0b55344d0b36883ac15b1
SHA256

abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c
SHA512

f69c807f7b56e42960aa4f5ab59997e71ff4e673e70cbed93e257d6eff25a9d36762a11147eecb6c0ac4e9dae275d858558c25b3e2addff1e9aded7d08158e16
SSDEEP

6144:NRqmpp+amNOGokzLyM9tsLAitQo6tzOKkzIt8gKyfjxfR9D2j4yThDb:zqmpplpGoGL3etQoMiXM8gxf/Sj4yTh3

Score

10^/10

aspackv2 persistence upx

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"	abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.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
behavioral1/files/0x000b000000012319-66.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
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	abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	services.exe

Executes dropped EXE 2 IoCs

pid	Process
872	fservice.exe
1752	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}\	abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe"	abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.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
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}	abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1728-55-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/files/0x000c0000000054a8-56.dat	upx
behavioral1/files/0x000c0000000054a8-57.dat	upx
behavioral1/files/0x000c0000000054a8-59.dat	upx
behavioral1/files/0x000c0000000054a8-61.dat	upx
behavioral1/files/0x000a000000012319-62.dat	upx
behavioral1/files/0x0009000000012322-64.dat	upx
behavioral1/files/0x0009000000012322-70.dat	upx
behavioral1/memory/872-74-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1728-75-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1752-76-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1752-80-0x0000000000400000-0x00000000005FC000-memory.dmp	upx

Loads dropped DLL 6 IoCs

pid	Process
1728	abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.exe
1728	abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.exe
1752	services.exe
1752	services.exe
872	fservice.exe
1728	abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.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\	abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.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	abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.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
File created	C:\Windows\SysWOW64\fservice.exe	services.exe

Drops file in Windows directory 8 IoCs

description	ioc	Process
File created	C:\Windows\system\sservice.exe	services.exe
File opened for modification	C:\Windows\system\sservice.exe	services.exe
File created	C:\Windows\system\sservice.exe	abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.exe
File opened for modification	C:\Windows\system\sservice.exe	abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.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 45 IoCs

pid	Process
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe
1752	services.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1752	services.exe
1752	services.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 872	1728	abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.exe	28
PID 1728 wrote to memory of 872	1728	abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.exe	28
PID 1728 wrote to memory of 872	1728	abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.exe	28
PID 1728 wrote to memory of 872	1728	abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.exe	28
PID 872 wrote to memory of 1752	872	fservice.exe	29
PID 872 wrote to memory of 1752	872	fservice.exe	29
PID 872 wrote to memory of 1752	872	fservice.exe	29
PID 872 wrote to memory of 1752	872	fservice.exe	29
PID 1752 wrote to memory of 1592	1752	services.exe	30
PID 1752 wrote to memory of 1592	1752	services.exe	30
PID 1752 wrote to memory of 1592	1752	services.exe	30
PID 1752 wrote to memory of 1592	1752	services.exe	30
PID 1752 wrote to memory of 1764	1752	services.exe	31
PID 1752 wrote to memory of 1764	1752	services.exe	31
PID 1752 wrote to memory of 1764	1752	services.exe	31
PID 1752 wrote to memory of 1764	1752	services.exe	31
PID 1592 wrote to memory of 268	1592	NET.exe	34
PID 1764 wrote to memory of 524	1764	NET.exe	35
PID 1592 wrote to memory of 268	1592	NET.exe	34
PID 1592 wrote to memory of 268	1592	NET.exe	34
PID 1592 wrote to memory of 268	1592	NET.exe	34
PID 1764 wrote to memory of 524	1764	NET.exe	35
PID 1764 wrote to memory of 524	1764	NET.exe	35
PID 1764 wrote to memory of 524	1764	NET.exe	35

C:\Users\Admin\AppData\Local\Temp\abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.exe
"C:\Users\Admin\AppData\Local\Temp\abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c.exe"
1⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Modifies Installed Components in the registry
- Loads dropped DLL
- Modifies WinLogon
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Windows\SysWOW64\fservice.exe
  C:\Windows\system32\fservice.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:872
- - 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:1752
  - - C:\Windows\SysWOW64\NET.exe
      NET STOP srservice
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1592
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP srservice
        5⤵
        
        PID:268
  - - C:\Windows\SysWOW64\NET.exe
      NET STOP navapsvc
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1764
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP navapsvc
        5⤵
        
        PID:524

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

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\fservice.exe

Filesize
342KB

MD5
3afc43bc88bb1f5682129d749322bc29

SHA1
c6acec4bcb17df09f8f0b55344d0b36883ac15b1

SHA256
abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c

SHA512
f69c807f7b56e42960aa4f5ab59997e71ff4e673e70cbed93e257d6eff25a9d36762a11147eecb6c0ac4e9dae275d858558c25b3e2addff1e9aded7d08158e16

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

Filesize
342KB

MD5
3afc43bc88bb1f5682129d749322bc29

SHA1
c6acec4bcb17df09f8f0b55344d0b36883ac15b1

SHA256
abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c

SHA512
f69c807f7b56e42960aa4f5ab59997e71ff4e673e70cbed93e257d6eff25a9d36762a11147eecb6c0ac4e9dae275d858558c25b3e2addff1e9aded7d08158e16

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

Filesize
36KB

MD5
562e0d01d6571fa2251a1e9f54c6cc69

SHA1
83677ad3bc630aa6327253c7b3deffbd4a8ce905

SHA256
c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

SHA512
166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

Download Submit
C:\Windows\services.exe

Filesize
342KB

MD5
3afc43bc88bb1f5682129d749322bc29

SHA1
c6acec4bcb17df09f8f0b55344d0b36883ac15b1

SHA256
abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c

SHA512
f69c807f7b56e42960aa4f5ab59997e71ff4e673e70cbed93e257d6eff25a9d36762a11147eecb6c0ac4e9dae275d858558c25b3e2addff1e9aded7d08158e16

Download Submit
C:\Windows\services.exe

Filesize
342KB

MD5
3afc43bc88bb1f5682129d749322bc29

SHA1
c6acec4bcb17df09f8f0b55344d0b36883ac15b1

SHA256
abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c

SHA512
f69c807f7b56e42960aa4f5ab59997e71ff4e673e70cbed93e257d6eff25a9d36762a11147eecb6c0ac4e9dae275d858558c25b3e2addff1e9aded7d08158e16

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

Filesize
342KB

MD5
3afc43bc88bb1f5682129d749322bc29

SHA1
c6acec4bcb17df09f8f0b55344d0b36883ac15b1

SHA256
abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c

SHA512
f69c807f7b56e42960aa4f5ab59997e71ff4e673e70cbed93e257d6eff25a9d36762a11147eecb6c0ac4e9dae275d858558c25b3e2addff1e9aded7d08158e16

Download Submit
\Windows\SysWOW64\fservice.exe

Filesize
342KB

MD5
3afc43bc88bb1f5682129d749322bc29

SHA1
c6acec4bcb17df09f8f0b55344d0b36883ac15b1

SHA256
abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c

SHA512
f69c807f7b56e42960aa4f5ab59997e71ff4e673e70cbed93e257d6eff25a9d36762a11147eecb6c0ac4e9dae275d858558c25b3e2addff1e9aded7d08158e16

Download Submit
\Windows\SysWOW64\fservice.exe

Filesize
342KB

MD5
3afc43bc88bb1f5682129d749322bc29

SHA1
c6acec4bcb17df09f8f0b55344d0b36883ac15b1

SHA256
abd3511a9a7820fde22414f1566c042471556e7a6146b65d8158e8f1a36e7b0c

SHA512
f69c807f7b56e42960aa4f5ab59997e71ff4e673e70cbed93e257d6eff25a9d36762a11147eecb6c0ac4e9dae275d858558c25b3e2addff1e9aded7d08158e16

Download Submit
\Windows\SysWOW64\reginv.dll

Filesize
36KB

MD5
562e0d01d6571fa2251a1e9f54c6cc69

SHA1
83677ad3bc630aa6327253c7b3deffbd4a8ce905

SHA256
c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

SHA512
166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

Download Submit
\Windows\SysWOW64\reginv.dll

Filesize
36KB

MD5
562e0d01d6571fa2251a1e9f54c6cc69

SHA1
83677ad3bc630aa6327253c7b3deffbd4a8ce905

SHA256
c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

SHA512
166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

Download Submit
\Windows\SysWOW64\reginv.dll

Filesize
36KB

MD5
562e0d01d6571fa2251a1e9f54c6cc69

SHA1
83677ad3bc630aa6327253c7b3deffbd4a8ce905

SHA256
c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

SHA512
166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

Download Submit
\Windows\SysWOW64\winkey.dll

Filesize
13KB

MD5
b4c72da9fd1a0dcb0698b7da97daa0cd

SHA1
b25a79e8ea4c723c58caab83aed6ea48de7ed759

SHA256
45d266269634ba2de70f179a26d7224111e677e66b38dff2802851b71ce4458f

SHA512
f5f184416c5381d275bc093c9275e9fdb35c58e2c401d188aef097950013de6e43269da5d4dd5e7baea34735bd7de664d15fe487b2292fd66926c9845b0cd066

Download Submit
memory/872-74-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1728-55-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1728-54-0x0000000076711000-0x0000000076713000-memory.dmp

Filesize
8KB

Download
memory/1728-75-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1752-77-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/1752-76-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1752-80-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download