tofsee | 5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80

General

Target

JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe
Size

241KB
MD5

9871085176380a51abb1b692934b263b
SHA1

c1f705ade7c401e98f0507e3c0ac866a8a3671f4
SHA256

5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80
SHA512

c1d3e409c698d942a7a8f4a33e97826e5d5b0d61dfd2522cf271d5a96609e3660672806941db4052a8d72f385a3590fa9a20d987f0e1f9a46579f8c1e31e94d6
SSDEEP

6144:LLHu86jUJP6vgau9NQRFbG6w8uzbgwu6QigabwVf:m86jW6vKNQRFS6bunn5

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

Signatures

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

pid	Process
4068	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\tivzznyq\ImagePath = "C:\\Windows\\SysWOW64\\tivzznyq\\otsqgmvk.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe

Deletes itself 1 IoCs

pid	Process
4124	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3048	otsqgmvk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3048 set thread context of 4124	3048	otsqgmvk.exe	99

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
912	sc.exe
1536	sc.exe
3200	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3096	4408	WerFault.exe	82
4524	3048	WerFault.exe	93

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.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	otsqgmvk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4408 wrote to memory of 4696	4408	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	83
PID 4408 wrote to memory of 4696	4408	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	83
PID 4408 wrote to memory of 4696	4408	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	83
PID 4408 wrote to memory of 1580	4408	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	85
PID 4408 wrote to memory of 1580	4408	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	85
PID 4408 wrote to memory of 1580	4408	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	85
PID 4408 wrote to memory of 912	4408	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	87
PID 4408 wrote to memory of 912	4408	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	87
PID 4408 wrote to memory of 912	4408	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	87
PID 4408 wrote to memory of 1536	4408	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	89
PID 4408 wrote to memory of 1536	4408	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	89
PID 4408 wrote to memory of 1536	4408	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	89
PID 4408 wrote to memory of 3200	4408	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	91
PID 4408 wrote to memory of 3200	4408	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	91
PID 4408 wrote to memory of 3200	4408	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	91
PID 4408 wrote to memory of 4068	4408	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	94
PID 4408 wrote to memory of 4068	4408	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	94
PID 4408 wrote to memory of 4068	4408	JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe	94
PID 3048 wrote to memory of 4124	3048	otsqgmvk.exe	99
PID 3048 wrote to memory of 4124	3048	otsqgmvk.exe	99
PID 3048 wrote to memory of 4124	3048	otsqgmvk.exe	99
PID 3048 wrote to memory of 4124	3048	otsqgmvk.exe	99
PID 3048 wrote to memory of 4124	3048	otsqgmvk.exe	99

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4408
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tivzznyq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4696
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\otsqgmvk.exe" C:\Windows\SysWOW64\tivzznyq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1580
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tivzznyq binPath= "C:\Windows\SysWOW64\tivzznyq\otsqgmvk.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:912
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tivzznyq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tivzznyq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3200
- 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:4068
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4408 -s 572
  2⤵
  - Program crash
  PID:3096

C:\Windows\SysWOW64\tivzznyq\otsqgmvk.exe
C:\Windows\SysWOW64\tivzznyq\otsqgmvk.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5a1adef0a5770af6ba4fb757169cf8e7a59aa2cf09ce7d7087d4217a8bd6ff80.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4124
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3048 -s 528
  2⤵
  - Program crash
  PID:4524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4408 -ip 4408
1⤵
PID:1800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3048 -ip 3048
1⤵
PID:384

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

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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\otsqgmvk.exe

Filesize
12.9MB

MD5
b324fd74990310849cbe1d5885c76e36

SHA1
1382084163ca73f408768366c3d12bee38a2ab8d

SHA256
133c7a200be1b183d62f629bcb0c855785fa69e8ab19b251e1f5e2e77ed6bf03

SHA512
fbce07734d54763b524dc1e18cdf0408a2743755929cefee9e04c8bbb0705dcb975e6567953d86fea573c61b9343fcb7fe2a1d9b053083042769b19c40ec3f26

Download Submit
memory/3048-11-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/3048-10-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/3048-17-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/3048-12-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/4124-13-0x0000000000EB0000-0x0000000000EC5000-memory.dmp

Filesize
84KB

Download
memory/4124-15-0x0000000000EB0000-0x0000000000EC5000-memory.dmp

Filesize
84KB

Download
memory/4124-16-0x0000000000EB0000-0x0000000000EC5000-memory.dmp

Filesize
84KB

Download
memory/4408-7-0x00000000006A0000-0x00000000006AD000-memory.dmp

Filesize
52KB

Download
memory/4408-6-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/4408-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4408-0-0x00000000006A0000-0x00000000006AD000-memory.dmp

Filesize
52KB

Download
memory/4408-8-0x00000000006B0000-0x00000000006C3000-memory.dmp

Filesize
76KB

Download
memory/4408-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4408-1-0x00000000006B0000-0x00000000006C3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads