tofsee | e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090

General

Target

JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe
Size

328KB
MD5

89f39e311ddd79b59a40af182fba5d26
SHA1

3e31861cac289a22a617cec2f0274bf6c4d3f83b
SHA256

e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090
SHA512

d8e9245483de0588da7418020a9d96a04a59004f8cebf036256e25c87af5144f97412177d08ddd4424b071d69eb9b5b5185fbe67e6655664714d4d617fb9e289
SSDEEP

6144:WAiKWhKNQ7hHkBNQvbNAJIZMVfwoxounXLd+xf1ECx++pscM0q8:WAi3hHhHkBuYdnXLd+xyC0MD

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
4476	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\nihtccfh\ImagePath = "C:\\Windows\\SysWOW64\\nihtccfh\\obkhinzm.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe

Deletes itself 1 IoCs

pid	Process
3360	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5048	obkhinzm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5048 set thread context of 3360	5048	obkhinzm.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
5032	sc.exe
3972	sc.exe
3920	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
4532	1972	WerFault.exe	81
1604	5048	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	obkhinzm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 2232	1972	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe	82
PID 1972 wrote to memory of 2232	1972	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe	82
PID 1972 wrote to memory of 2232	1972	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe	82
PID 1972 wrote to memory of 4796	1972	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe	84
PID 1972 wrote to memory of 4796	1972	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe	84
PID 1972 wrote to memory of 4796	1972	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe	84
PID 1972 wrote to memory of 5032	1972	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe	86
PID 1972 wrote to memory of 5032	1972	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe	86
PID 1972 wrote to memory of 5032	1972	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe	86
PID 1972 wrote to memory of 3972	1972	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe	88
PID 1972 wrote to memory of 3972	1972	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe	88
PID 1972 wrote to memory of 3972	1972	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe	88
PID 1972 wrote to memory of 3920	1972	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe	90
PID 1972 wrote to memory of 3920	1972	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe	90
PID 1972 wrote to memory of 3920	1972	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe	90
PID 1972 wrote to memory of 4476	1972	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe	93
PID 1972 wrote to memory of 4476	1972	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe	93
PID 1972 wrote to memory of 4476	1972	JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe	93
PID 5048 wrote to memory of 3360	5048	obkhinzm.exe	98
PID 5048 wrote to memory of 3360	5048	obkhinzm.exe	98
PID 5048 wrote to memory of 3360	5048	obkhinzm.exe	98
PID 5048 wrote to memory of 3360	5048	obkhinzm.exe	98
PID 5048 wrote to memory of 3360	5048	obkhinzm.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nihtccfh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2232
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\obkhinzm.exe" C:\Windows\SysWOW64\nihtccfh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nihtccfh binPath= "C:\Windows\SysWOW64\nihtccfh\obkhinzm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5032
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nihtccfh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nihtccfh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3920
- 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:4476
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1972 -s 1264
  2⤵
  - Program crash
  PID:4532

C:\Windows\SysWOW64\nihtccfh\obkhinzm.exe
C:\Windows\SysWOW64\nihtccfh\obkhinzm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5048
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3360
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 508
  2⤵
  - Program crash
  PID:1604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1972 -ip 1972
1⤵
PID:3412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 5048 -ip 5048
1⤵
PID:1104

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\obkhinzm.exe

Filesize
12.2MB

MD5
100646e3e5f368cf0edfa9f1a30fd72b

SHA1
eabbc01a0bb13afa3454a46bc9181dc446edc534

SHA256
f036cb1f213a5b22abc67a1d751833953ca745e4b3f6420b6e5b3d480864674d

SHA512
a2179c01a43e5c5078bfcd269f5efe45ae6f6d1ecb8bd162897a160df75d88ec0cac8d0e2fe152d626c6917dcbecd1c2844154ccc400ac61c6ae21782ae49e1c

Download Submit
memory/1972-1-0x00000000026D0000-0x00000000027D0000-memory.dmp

Filesize
1024KB

Download
memory/1972-2-0x0000000002650000-0x0000000002663000-memory.dmp

Filesize
76KB

Download
memory/1972-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1972-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1972-8-0x0000000002650000-0x0000000002663000-memory.dmp

Filesize
76KB

Download
memory/1972-7-0x0000000000400000-0x00000000023A8000-memory.dmp

Filesize
31.7MB

Download
memory/3360-11-0x0000000000890000-0x00000000008A5000-memory.dmp

Filesize
84KB

Download
memory/3360-13-0x0000000000890000-0x00000000008A5000-memory.dmp

Filesize
84KB

Download
memory/3360-14-0x0000000000890000-0x00000000008A5000-memory.dmp

Filesize
84KB

Download
memory/5048-15-0x0000000000400000-0x00000000023A8000-memory.dmp

Filesize
31.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads