tofsee | 583db238176dff20ca429038c3d78b942d51bc5487e3a9d82e71e009204155ef

General

Target

78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe
Size

289KB
MD5

78f40031a8fef95a5ed472ebc27d8e9c
SHA1

b00f3b3ec3477d5e79a4ce915492ac27a269d54f
SHA256

583db238176dff20ca429038c3d78b942d51bc5487e3a9d82e71e009204155ef
SHA512

42bf43ed0f9984c46f3bf9ce2b6c0a4c7c4d1a46af2b7926132e59c8b124890b13d4138efad6cc6feb9eaacf0a97ab481a4312c9af6e5bc8d1461d750a2d24ad
SSDEEP

6144:Fdp4xu6WtLc1rZqJL6ge9aOOhxxdeTr/ekI:yxMZL6gcwzxd6L

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
4508	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\qitxospn\ImagePath = "C:\\Windows\\SysWOW64\\qitxospn\\vcobkxys.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	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
436	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4376	vcobkxys.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4376 set thread context of 436	4376	vcobkxys.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
1008	sc.exe
2144	sc.exe
2312	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
4092	4592	WerFault.exe	83
4196	4376	WerFault.exe	101

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	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.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	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vcobkxys.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4592 wrote to memory of 5108	4592	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	87
PID 4592 wrote to memory of 5108	4592	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	87
PID 4592 wrote to memory of 5108	4592	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	87
PID 4592 wrote to memory of 3428	4592	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	91
PID 4592 wrote to memory of 3428	4592	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	91
PID 4592 wrote to memory of 3428	4592	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	91
PID 4592 wrote to memory of 2312	4592	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	93
PID 4592 wrote to memory of 2312	4592	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	93
PID 4592 wrote to memory of 2312	4592	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	93
PID 4592 wrote to memory of 1008	4592	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	97
PID 4592 wrote to memory of 1008	4592	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	97
PID 4592 wrote to memory of 1008	4592	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	97
PID 4592 wrote to memory of 2144	4592	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	99
PID 4592 wrote to memory of 2144	4592	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	99
PID 4592 wrote to memory of 2144	4592	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	99
PID 4592 wrote to memory of 4508	4592	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	102
PID 4592 wrote to memory of 4508	4592	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	102
PID 4592 wrote to memory of 4508	4592	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	102
PID 4376 wrote to memory of 436	4376	vcobkxys.exe	107
PID 4376 wrote to memory of 436	4376	vcobkxys.exe	107
PID 4376 wrote to memory of 436	4376	vcobkxys.exe	107
PID 4376 wrote to memory of 436	4376	vcobkxys.exe	107
PID 4376 wrote to memory of 436	4376	vcobkxys.exe	107

C:\Users\Admin\AppData\Local\Temp\78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4592
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qitxospn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vcobkxys.exe" C:\Windows\SysWOW64\qitxospn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3428
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qitxospn binPath= "C:\Windows\SysWOW64\qitxospn\vcobkxys.exe /d\"C:\Users\Admin\AppData\Local\Temp\78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2312
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qitxospn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qitxospn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2144
- 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:4508
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 1036
  2⤵
  - Program crash
  PID:4092

C:\Windows\SysWOW64\qitxospn\vcobkxys.exe
C:\Windows\SysWOW64\qitxospn\vcobkxys.exe /d"C:\Users\Admin\AppData\Local\Temp\78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4376
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:436
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4376 -s 528
  2⤵
  - Program crash
  PID:4196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4592 -ip 4592
1⤵
PID:1096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4376 -ip 4376
1⤵
PID:2596

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\vcobkxys.exe

Filesize
12.4MB

MD5
2350c31eafa799cc83912cbd9ba74acb

SHA1
df3203b7571df3929acad6220ee51ad55bf0847f

SHA256
bcf194bdf34a45a9fca96c6cecd6b074f4120404c4065ffa0a840aebcea5522d

SHA512
216f7c8a0c9f14a2d6c1bccff449f930e01aeab312dac603a9aaed0c237883b89f262d4fd79bfbaa4488d16fac6d467fe4dff375061d4c9fc693bdff26c1f8d3

Download Submit
memory/436-14-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/436-17-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/436-16-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/4376-13-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4376-12-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4376-11-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4376-18-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4592-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4592-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4592-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4592-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4592-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4592-1-0x0000000000670000-0x0000000000770000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads