tofsee | c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4

General

Target

JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe
Size

165KB
MD5

61d5927de2e87d20ed931c0477093c00
SHA1

13576aee06b240532a623e54ada4349112ee70a3
SHA256

c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4
SHA512

9b721bd4a2ce6268c5239c8c7e1ffc8e3bc487d9de79451ba5b5a2744488d4867250e576f8a25260dd84b069419b4cdd2376f1d4433e4b127ee5f8eb0fd80e53
SSDEEP

3072:8HecR8524A4opoavTqaeqUFM+7U7FA5jdDn4qko9K2D22y0u2:BcR024NlaTzUFM+7mArkgqe

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
4912	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\rhbcznzq\ImagePath = "C:\\Windows\\SysWOW64\\rhbcznzq\\nxcpwrqf.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe

Deletes itself 1 IoCs

pid	Process
1940	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4788	nxcpwrqf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4788 set thread context of 1940	4788	nxcpwrqf.exe	93

Launches sc.exe 3 IoCs

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

pid	Process
4856	sc.exe
2056	sc.exe
1612	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 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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1240	4476	WerFault.exe	81
3116	4788	WerFault.exe	92

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	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.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	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	nxcpwrqf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4476 wrote to memory of 4448	4476	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe	82
PID 4476 wrote to memory of 4448	4476	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe	82
PID 4476 wrote to memory of 4448	4476	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe	82
PID 4476 wrote to memory of 5064	4476	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe	84
PID 4476 wrote to memory of 5064	4476	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe	84
PID 4476 wrote to memory of 5064	4476	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe	84
PID 4476 wrote to memory of 4856	4476	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe	86
PID 4476 wrote to memory of 4856	4476	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe	86
PID 4476 wrote to memory of 4856	4476	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe	86
PID 4476 wrote to memory of 2056	4476	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe	88
PID 4476 wrote to memory of 2056	4476	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe	88
PID 4476 wrote to memory of 2056	4476	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe	88
PID 4476 wrote to memory of 1612	4476	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe	90
PID 4476 wrote to memory of 1612	4476	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe	90
PID 4476 wrote to memory of 1612	4476	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe	90
PID 4788 wrote to memory of 1940	4788	nxcpwrqf.exe	93
PID 4788 wrote to memory of 1940	4788	nxcpwrqf.exe	93
PID 4788 wrote to memory of 1940	4788	nxcpwrqf.exe	93
PID 4788 wrote to memory of 1940	4788	nxcpwrqf.exe	93
PID 4788 wrote to memory of 1940	4788	nxcpwrqf.exe	93
PID 4476 wrote to memory of 4912	4476	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe	96
PID 4476 wrote to memory of 4912	4476	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe	96
PID 4476 wrote to memory of 4912	4476	JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe	96

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4476
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rhbcznzq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4448
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nxcpwrqf.exe" C:\Windows\SysWOW64\rhbcznzq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rhbcznzq binPath= "C:\Windows\SysWOW64\rhbcznzq\nxcpwrqf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4856
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rhbcznzq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rhbcznzq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1612
- 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:4912
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4476 -s 672
  2⤵
  - Program crash
  PID:1240

C:\Windows\SysWOW64\rhbcznzq\nxcpwrqf.exe
C:\Windows\SysWOW64\rhbcznzq\nxcpwrqf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7afe2610ad94ccc44eae5c2251ffa81e94043fb2990325f47c8fe8f5cfdf6e4.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4788
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1940
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4788 -s 572
  2⤵
  - Program crash
  PID:3116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4788 -ip 4788
1⤵
PID:1264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4476 -ip 4476
1⤵
PID:636

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\nxcpwrqf.exe

Filesize
11.7MB

MD5
82a7972ad7c5deb0271718d8546ec500

SHA1
84a46901f7aedb8298cc49b1503b58b97197f898

SHA256
1bf955e26342ca9ebfd4d98f3bc2cd6eac038f7b3a4c3d329178160b79d49b0e

SHA512
4f6544ce442097391ccace4713314d645d8785327fff02d2011190aa4a691d2307c649de657d2eb33042c315833ef61bffbf2f04b62a01ec2ad12be81e85c989

Download Submit
memory/1940-9-0x0000000000370000-0x0000000000385000-memory.dmp

Filesize
84KB

Download
memory/1940-21-0x0000000000370000-0x0000000000385000-memory.dmp

Filesize
84KB

Download
memory/1940-20-0x0000000000370000-0x0000000000385000-memory.dmp

Filesize
84KB

Download
memory/1940-19-0x0000000000370000-0x0000000000385000-memory.dmp

Filesize
84KB

Download
memory/1940-12-0x0000000000370000-0x0000000000385000-memory.dmp

Filesize
84KB

Download
memory/4476-17-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/4476-16-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/4476-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4476-0-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/4476-15-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/4476-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4476-1-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/4788-8-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/4788-6-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/4788-14-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/4788-7-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads