tofsee | c3c799982a87e0c2f562c5961561e0de269d7ae908c94d7b1483bcd901a8850b

General

Target

05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe
Size

10.5MB
MD5

05757f18c3d66412b7f9e21670f4f7d9
SHA1

14cb0395fb911e24a8342d6d42d9d21cda3c9993
SHA256

c3c799982a87e0c2f562c5961561e0de269d7ae908c94d7b1483bcd901a8850b
SHA512

598b20f77fe089983617e567109b6706ab5e0cf77bbc7279faae30d9dcc0fb48cd93d4ea617d0943fb00d864298bfcf546c19305f71e88719187232e3392d489
SSDEEP

3072:mNoWIXVg044YmyJc/rY/2Woct6Mz+7L00vyLf9nQLWLIMcesvKeHTQzIaH/q99Q8:mNoWwy0jYBkE/vocLz+2QSLIBee8q9N

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
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

1164 netsh.exe

pid	process
1164	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\qunjeghe\ImagePath = "C:\\Windows\\SysWOW64\\qunjeghe\\kzmiutmy.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

Processes:

05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1356 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

kzmiutmy.exe

pid process

2764 kzmiutmy.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

kzmiutmy.exe

description pid process target process

PID 2764 set thread context of 1356 2764 kzmiutmy.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

2776 sc.exe
3728 sc.exe
4600 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1356	svchost.exe

pid	process
2764	kzmiutmy.exe

description	pid	process	target process
PID 2764 set thread context of 1356	2764	kzmiutmy.exe	svchost.exe

pid	process
2776	sc.exe
3728	sc.exe
4600	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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:

05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.execmd.exenetsh.exesvchost.execmd.exesc.exesc.exesc.exekzmiutmy.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
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	kzmiutmy.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exekzmiutmy.exe

description	pid	process	target process
PID 4848 wrote to memory of 4184	4848	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	cmd.exe
PID 4848 wrote to memory of 4184	4848	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	cmd.exe
PID 4848 wrote to memory of 4184	4848	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	cmd.exe
PID 4848 wrote to memory of 1388	4848	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	cmd.exe
PID 4848 wrote to memory of 1388	4848	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	cmd.exe
PID 4848 wrote to memory of 1388	4848	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	cmd.exe
PID 4848 wrote to memory of 4600	4848	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 4848 wrote to memory of 4600	4848	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 4848 wrote to memory of 4600	4848	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 4848 wrote to memory of 2776	4848	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 4848 wrote to memory of 2776	4848	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 4848 wrote to memory of 2776	4848	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 4848 wrote to memory of 3728	4848	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 4848 wrote to memory of 3728	4848	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 4848 wrote to memory of 3728	4848	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	sc.exe
PID 4848 wrote to memory of 1164	4848	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	netsh.exe
PID 4848 wrote to memory of 1164	4848	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	netsh.exe
PID 4848 wrote to memory of 1164	4848	05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe	netsh.exe
PID 2764 wrote to memory of 1356	2764	kzmiutmy.exe	svchost.exe
PID 2764 wrote to memory of 1356	2764	kzmiutmy.exe	svchost.exe
PID 2764 wrote to memory of 1356	2764	kzmiutmy.exe	svchost.exe
PID 2764 wrote to memory of 1356	2764	kzmiutmy.exe	svchost.exe
PID 2764 wrote to memory of 1356	2764	kzmiutmy.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4848
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qunjeghe\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4184
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kzmiutmy.exe" C:\Windows\SysWOW64\qunjeghe\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1388
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qunjeghe binPath= "C:\Windows\SysWOW64\qunjeghe\kzmiutmy.exe /d\"C:\Users\Admin\AppData\Local\Temp\05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4600
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qunjeghe "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qunjeghe
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3728
- 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:1164

C:\Windows\SysWOW64\qunjeghe\kzmiutmy.exe
C:\Windows\SysWOW64\qunjeghe\kzmiutmy.exe /d"C:\Users\Admin\AppData\Local\Temp\05757f18c3d66412b7f9e21670f4f7d9_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1356

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\kzmiutmy.exe

Filesize
11.3MB

MD5
445cc6813cc288e14f67e342d4ef1450

SHA1
1f401952fb41f7484c8451bc981b5e5b6fe8d410

SHA256
baa599fe464790d16ddbd24ddeb26ebadde67125eb29892e62702f735cc40d1a

SHA512
e8a28563a2b70f0402e8200ba1688653f13281675d9d907eaf9c61da2c4938e9f8af81375f7d296bc799652d7ae8c1aeb87a4aca4ce40a86b966e740c4f0e86a

Download Submit
memory/1356-14-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download
memory/1356-11-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download
memory/1356-17-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download
memory/2764-15-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2764-12-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/4848-1-0x00000000008E0000-0x00000000009E0000-memory.dmp

Filesize
1024KB

Download
memory/4848-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4848-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4848-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/4848-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4848-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads