c6106ddc8029c3572223d988965baa220e14dbbe120b078a4b5a7d0546f7eb36

General

Target

2b607447d7329e4b4cf411321d39be60.exe
Size

1.7MB
MD5

2b607447d7329e4b4cf411321d39be60
SHA1

5e102f5055eb327d965e1ff542708f5c22993cb3
SHA256

c6106ddc8029c3572223d988965baa220e14dbbe120b078a4b5a7d0546f7eb36
SHA512

9640cd9eebcc85971c25a8617c73241ae37029509140bccae1ef6b9e1e74fe1e4ac0a3869c4448b7ad043ccc4b81be7060098627b0cfcadff6a6fbcef6f0e4a8
SSDEEP

24576:h7WsPkA8QsBPyoG0HBrC2zJSKD5YKPmg/ptFL2De60BtKF+ho3njkoo/LZSS9e:hrEQsBT1D5YKPp/j0jN

Score

10^/10

persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

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"	2b607447d7329e4b4cf411321d39be60.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe"	services.exe

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	2b607447d7329e4b4cf411321d39be60.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	2b607447d7329e4b4cf411321d39be60.exe
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

Modifies Installed Components in the registry 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe"	2b607447d7329e4b4cf411321d39be60.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}	2b607447d7329e4b4cf411321d39be60.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	2b607447d7329e4b4cf411321d39be60.exe

Executes dropped EXE 2 IoCs

pid	Process
1664	fservice.exe
5072	services.exe

Loads dropped DLL 5 IoCs

pid	Process
5072	services.exe
5072	services.exe
5072	services.exe
1664	fservice.exe
4288	2b607447d7329e4b4cf411321d39be60.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4288-0-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral2/memory/4288-35-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral2/memory/1664-33-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral2/files/0x000600000001e5df-7.dat	upx
behavioral2/files/0x000600000001e5df-6.dat	upx
behavioral2/memory/5072-37-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral2/memory/5072-38-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral2/memory/5072-39-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral2/memory/5072-41-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral2/memory/5072-42-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral2/memory/5072-43-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral2/memory/5072-44-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral2/memory/5072-45-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral2/memory/5072-46-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral2/memory/5072-47-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral2/memory/5072-48-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral2/memory/5072-49-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral2/memory/5072-50-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral2/memory/5072-51-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral2/memory/5072-52-0x0000000000400000-0x00000000005FF000-memory.dmp	upx

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	2b607447d7329e4b4cf411321d39be60.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	2b607447d7329e4b4cf411321d39be60.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	2b607447d7329e4b4cf411321d39be60.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	2b607447d7329e4b4cf411321d39be60.exe
File opened for modification	C:\Windows\system\sservice.exe	2b607447d7329e4b4cf411321d39be60.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
File created	C:\Windows\system\sservice.exe	services.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe
5072	services.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5072	services.exe
5072	services.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4288 wrote to memory of 1664	4288	2b607447d7329e4b4cf411321d39be60.exe	31
PID 4288 wrote to memory of 1664	4288	2b607447d7329e4b4cf411321d39be60.exe	31
PID 4288 wrote to memory of 1664	4288	2b607447d7329e4b4cf411321d39be60.exe	31
PID 1664 wrote to memory of 5072	1664	fservice.exe	30
PID 1664 wrote to memory of 5072	1664	fservice.exe	30
PID 1664 wrote to memory of 5072	1664	fservice.exe	30
PID 5072 wrote to memory of 3140	5072	services.exe	28
PID 5072 wrote to memory of 3140	5072	services.exe	28
PID 5072 wrote to memory of 3140	5072	services.exe	28
PID 5072 wrote to memory of 2604	5072	services.exe	27
PID 5072 wrote to memory of 2604	5072	services.exe	27
PID 5072 wrote to memory of 2604	5072	services.exe	27
PID 2604 wrote to memory of 4508	2604	NET.exe	21
PID 2604 wrote to memory of 4508	2604	NET.exe	21
PID 2604 wrote to memory of 4508	2604	NET.exe	21
PID 3140 wrote to memory of 4640	3140	NET.exe	25
PID 3140 wrote to memory of 4640	3140	NET.exe	25
PID 3140 wrote to memory of 4640	3140	NET.exe	25
PID 4288 wrote to memory of 4452	4288	2b607447d7329e4b4cf411321d39be60.exe	24
PID 4288 wrote to memory of 4452	4288	2b607447d7329e4b4cf411321d39be60.exe	24
PID 4288 wrote to memory of 4452	4288	2b607447d7329e4b4cf411321d39be60.exe	24

C:\Users\Admin\AppData\Local\Temp\2b607447d7329e4b4cf411321d39be60.exe
"C:\Users\Admin\AppData\Local\Temp\2b607447d7329e4b4cf411321d39be60.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:4288
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\2b607447d7329e4b4cf411321d39be60.exe.bat
  2⤵
  PID:4452
- 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:1664

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 STOP navapsvc
1⤵
PID:4508

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 STOP srservice
1⤵
PID:4640

C:\Windows\SysWOW64\NET.exe
NET STOP navapsvc
1⤵
- Suspicious use of WriteProcessMemory
PID:2604

C:\Windows\SysWOW64\NET.exe
NET STOP srservice
1⤵
- Suspicious use of WriteProcessMemory
PID:3140

C:\Windows\services.exe
C:\Windows\services.exe -XP
1⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Modifies Installed Components in the registry
- Executes dropped EXE
- 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:5072

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

4

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Winlogon Helper DLL

2

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

4

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Winlogon Helper DLL

2

T1547.004

Defense Evasion

Modify Registry

4

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\fservice.exe

Filesize
389KB

MD5
dc0082f72a49fe72eb94ba9a0ee861a3

SHA1
cac1c9660002ed11a8eaace04802824f7d2efeff

SHA256
f93089e1706f0491833852d5f84682c643bbcfa6a88048c2ca0acbde7dc6464e

SHA512
ec6a33766ce3452ade211497edea910e6d06f8d30bf189bbfd4a13d411a2b1de74d0784a76137e1115520d9644358ef02a8c844f37c1a4b9ac9ee41b95206127

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

Filesize
897KB

MD5
385953e3eae111e9b62d27e7ad47d08f

SHA1
01dfc97cc3dea7e64a6f9642f7cf9a0cb873317a

SHA256
889a373a10ca9e2135ca0109d7b41bf38a6d16be816665f6fbe31a01f7cadacf

SHA512
d921845a0e21493977b761b7d3b7c7217c81aaca526a659d26ae6f08d57f1cbcc2486d7aaaa5ab9a0579930c7578cc8c39ed379522299825c4bab8eed1cd683a

Download Submit
memory/1664-33-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/1664-9-0x0000000000700000-0x0000000000701000-memory.dmp

Filesize
4KB

Download
memory/4288-1-0x0000000002280000-0x0000000002281000-memory.dmp

Filesize
4KB

Download
memory/4288-35-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/4288-0-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/5072-41-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/5072-45-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/5072-38-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/5072-39-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/5072-40-0x00000000025B0000-0x00000000025B1000-memory.dmp

Filesize
4KB

Download
memory/5072-18-0x00000000025B0000-0x00000000025B1000-memory.dmp

Filesize
4KB

Download
memory/5072-42-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/5072-43-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/5072-44-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/5072-37-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/5072-46-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/5072-47-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/5072-48-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/5072-49-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/5072-50-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/5072-51-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/5072-52-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads