tofsee | 78ffb37d0d83a6cab5ffda39feca2226b7313e14cf2591742a713cbbf4346ef5

General

Target

JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe
Size

11.3MB
MD5

e465df146e4a00ed2e4a0d941003a13c
SHA1

451f1f0877d638646261a730de87929f01debf68
SHA256

78ffb37d0d83a6cab5ffda39feca2226b7313e14cf2591742a713cbbf4346ef5
SHA512

39151020dc52e537ae0333a2a317f70406f9da72fb9013fd49358cb71a39fabc5c267e0fb19d2e28dc2fa221b218857b9dc03320f64b03e99fb31a615cc06983
SSDEEP

3072:NoiqjV0QCeV75zMwb2EfDXTBrt0c5f+Z7ApWt+0krytpObPUfAGM4H1M4CjiJNx4:NoiqjWHeV9zthDjBrmA+VkDbSAgQiTx

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
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
4740	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\takgqkrq\ImagePath = "C:\\Windows\\SysWOW64\\takgqkrq\\ukkkzqwo.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe

Deletes itself 1 IoCs

pid	Process
2096	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4760	ukkkzqwo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4760 set thread context of 2096	4760	ukkkzqwo.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
2320	sc.exe
1672	sc.exe
3676	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 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

Program crash 6 IoCs

pid	pid_target	Process	procid_target
4680	1352	WerFault.exe	82
3116	1352	WerFault.exe	82
4860	1352	WerFault.exe	82
1548	4760	WerFault.exe	94
4992	4760	WerFault.exe	94
1972	4760	WerFault.exe	94

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_e465df146e4a00ed2e4a0d941003a13c.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	ukkkzqwo.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1352 wrote to memory of 3652	1352	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe	83
PID 1352 wrote to memory of 3652	1352	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe	83
PID 1352 wrote to memory of 3652	1352	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe	83
PID 1352 wrote to memory of 2768	1352	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe	85
PID 1352 wrote to memory of 2768	1352	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe	85
PID 1352 wrote to memory of 2768	1352	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe	85
PID 1352 wrote to memory of 2320	1352	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe	87
PID 1352 wrote to memory of 2320	1352	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe	87
PID 1352 wrote to memory of 2320	1352	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe	87
PID 1352 wrote to memory of 1672	1352	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe	90
PID 1352 wrote to memory of 1672	1352	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe	90
PID 1352 wrote to memory of 1672	1352	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe	90
PID 1352 wrote to memory of 3676	1352	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe	92
PID 1352 wrote to memory of 3676	1352	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe	92
PID 1352 wrote to memory of 3676	1352	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe	92
PID 1352 wrote to memory of 4740	1352	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe	95
PID 1352 wrote to memory of 4740	1352	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe	95
PID 1352 wrote to memory of 4740	1352	JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe	95
PID 4760 wrote to memory of 2096	4760	ukkkzqwo.exe	103
PID 4760 wrote to memory of 2096	4760	ukkkzqwo.exe	103
PID 4760 wrote to memory of 2096	4760	ukkkzqwo.exe	103
PID 4760 wrote to memory of 2096	4760	ukkkzqwo.exe	103
PID 4760 wrote to memory of 2096	4760	ukkkzqwo.exe	103

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1352
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\takgqkrq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ukkkzqwo.exe" C:\Windows\SysWOW64\takgqkrq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create takgqkrq binPath= "C:\Windows\SysWOW64\takgqkrq\ukkkzqwo.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2320
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description takgqkrq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1672
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start takgqkrq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3676
- 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:4740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1352 -s 1048
  2⤵
  - Program crash
  PID:4680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1352 -s 1208
  2⤵
  - Program crash
  PID:3116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1352 -s 1152
  2⤵
  - Program crash
  PID:4860

C:\Windows\SysWOW64\takgqkrq\ukkkzqwo.exe
C:\Windows\SysWOW64\takgqkrq\ukkkzqwo.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e465df146e4a00ed2e4a0d941003a13c.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4760
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2096
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4760 -s 516
  2⤵
  - Program crash
  PID:1548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4760 -s 540
  2⤵
  - Program crash
  PID:4992
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4760 -s 524
  2⤵
  - Program crash
  PID:1972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1352 -ip 1352
1⤵
PID:5060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1352 -ip 1352
1⤵
PID:3612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1352 -ip 1352
1⤵
PID:1524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4760 -ip 4760
1⤵
PID:2452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4760 -ip 4760
1⤵
PID:4360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4760 -ip 4760
1⤵
PID:740

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\ukkkzqwo.exe

Filesize
11.3MB

MD5
a6bd41d8177c731571835acab3960302

SHA1
df873aaea9b788a322c3ded71929cf45e9718bf5

SHA256
e83abdba4869c9ca20db072d9c5f8c4e98ea740ff660fa3efb44189c1e5c27c5

SHA512
fe3764e33d6092ed3668cb98d60144f83e18bc53272b39627342644e5c3b86141149d2612aac06793e0241a1daaf2dba3cafd7dee8625e1c4504bf1ff25a43da

Download Submit
memory/1352-2-0x0000000000900000-0x0000000000913000-memory.dmp

Filesize
76KB

Download
memory/1352-1-0x0000000000930000-0x0000000000A30000-memory.dmp

Filesize
1024KB

Download
memory/1352-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1352-13-0x0000000000900000-0x0000000000913000-memory.dmp

Filesize
76KB

Download
memory/1352-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1352-12-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2096-8-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/2096-16-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/2096-17-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/4760-9-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/4760-10-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads