tofsee | dd651993ceb08056970a31d73f2fdc68de47647ecdeb1156ee293f6cfc85e477

General

Target

404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe
Size

14.3MB
MD5

404df06ef809bfbaa5e59b015840d718
SHA1

822c7f9c09f43af6f2436ac0fdb22b5338a202d6
SHA256

dd651993ceb08056970a31d73f2fdc68de47647ecdeb1156ee293f6cfc85e477
SHA512

309c015ac12444f1d8222bddbcac43c29ee1f783ea1d23c7214c36ad4038050e72ff27c86328ad4c30a1b052c43f17fd7525a54bcc967d71cf6b3d07ecdc4c3c
SSDEEP

393216:aUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUE:

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\owhpbqgm = "0"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2604 netsh.exe

pid	process
2604	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\owhpbqgm\ImagePath = "C:\\Windows\\SysWOW64\\owhpbqgm\\szxiniwk.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2400 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

szxiniwk.exe

pid process

2792 szxiniwk.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

szxiniwk.exe

description pid process target process

PID 2792 set thread context of 2400 2792 szxiniwk.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2828 sc.exe
2772 sc.exe
2868 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2400	svchost.exe

pid	process
2792	szxiniwk.exe

description	pid	process	target process
PID 2792 set thread context of 2400	2792	szxiniwk.exe	svchost.exe

pid	process
2828	sc.exe
2772	sc.exe
2868	sc.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

Processes:

netsh.exe

description	ioc	process
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

404df06ef809bfbaa5e59b015840d718_JaffaCakes118.execmd.exesc.exesc.exenetsh.execmd.exesc.exeszxiniwk.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	szxiniwk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exeszxiniwk.exe

description	pid	process	target process
PID 752 wrote to memory of 1380	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	cmd.exe
PID 752 wrote to memory of 1380	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	cmd.exe
PID 752 wrote to memory of 1380	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	cmd.exe
PID 752 wrote to memory of 1380	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	cmd.exe
PID 752 wrote to memory of 1940	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	cmd.exe
PID 752 wrote to memory of 1940	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	cmd.exe
PID 752 wrote to memory of 1940	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	cmd.exe
PID 752 wrote to memory of 1940	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	cmd.exe
PID 752 wrote to memory of 2828	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	sc.exe
PID 752 wrote to memory of 2828	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	sc.exe
PID 752 wrote to memory of 2828	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	sc.exe
PID 752 wrote to memory of 2828	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	sc.exe
PID 752 wrote to memory of 2772	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	sc.exe
PID 752 wrote to memory of 2772	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	sc.exe
PID 752 wrote to memory of 2772	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	sc.exe
PID 752 wrote to memory of 2772	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	sc.exe
PID 752 wrote to memory of 2868	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	sc.exe
PID 752 wrote to memory of 2868	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	sc.exe
PID 752 wrote to memory of 2868	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	sc.exe
PID 752 wrote to memory of 2868	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	sc.exe
PID 752 wrote to memory of 2604	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	netsh.exe
PID 752 wrote to memory of 2604	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	netsh.exe
PID 752 wrote to memory of 2604	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	netsh.exe
PID 752 wrote to memory of 2604	752	404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe	netsh.exe
PID 2792 wrote to memory of 2400	2792	szxiniwk.exe	svchost.exe
PID 2792 wrote to memory of 2400	2792	szxiniwk.exe	svchost.exe
PID 2792 wrote to memory of 2400	2792	szxiniwk.exe	svchost.exe
PID 2792 wrote to memory of 2400	2792	szxiniwk.exe	svchost.exe
PID 2792 wrote to memory of 2400	2792	szxiniwk.exe	svchost.exe
PID 2792 wrote to memory of 2400	2792	szxiniwk.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:752

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\owhpbqgm\
2⤵
- System Location Discovery: System Language Discovery
PID:1380

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\szxiniwk.exe" C:\Windows\SysWOW64\owhpbqgm\
2⤵
- System Location Discovery: System Language Discovery
PID:1940

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create owhpbqgm binPath= "C:\Windows\SysWOW64\owhpbqgm\szxiniwk.exe /d\"C:\Users\Admin\AppData\Local\Temp\404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2828

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description owhpbqgm "wifi internet conection"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2772

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start owhpbqgm
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2868

C:\Windows\SysWOW64\netsh.exe
"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
2⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2604

C:\Windows\SysWOW64\owhpbqgm\szxiniwk.exe
C:\Windows\SysWOW64\owhpbqgm\szxiniwk.exe /d"C:\Users\Admin\AppData\Local\Temp\404df06ef809bfbaa5e59b015840d718_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2792

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:2400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\szxiniwk.exe

Filesize
13.5MB

MD5
18a2f9b68b6d90c43f6af0807f3ef3f5

SHA1
c332124326b09cc77a96641c2a99eca7aad49bf0

SHA256
b6139a64d2ff535a475c12f5adb44658bb24bebe6df8fbbf48106d5bdecb2ad0

SHA512
6827438907388d02076a2ab96e4aa8acd5cd035490e49e7ed00224a5d6660d665aa1e33838c1684e24f0d04e4f8a4f57949f937beffc55b7c9e6ea6ae09e0d4a

Download Submit
memory/752-8-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/752-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/752-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/752-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/752-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/752-1-0x0000000000600000-0x0000000000700000-memory.dmp

Filesize
1024KB

Download
memory/2400-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2400-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2400-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2400-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2400-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2792-17-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads