tofsee | c04a5f65f05b9b01b6b4c594a5e7a20c5d6a0cc78e92a782fba497dae49f60d9

General

Target

b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe
Size

11.2MB
MD5

b45db2c776b80d9917734597ec4aaec7
SHA1

9036a908ff16d45a0ce8a281e73665affd118091
SHA256

c04a5f65f05b9b01b6b4c594a5e7a20c5d6a0cc78e92a782fba497dae49f60d9
SHA512

47a66f3b5e22d1045a71216fca4afd843f264f5046f3f7a9483e14964a0d42293b9b06c7baee7e9b09adfa6a98a67ba6073b7b9366169ca4cca7e7d912629365
SSDEEP

6144:CVLzTNrHtNo3azgzs1anrC+ekTXiRpYjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjD:CVL3NrTo3bjLTM

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
3608	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\xkgwsqa\ImagePath = "C:\\Windows\\SysWOW64\\xkgwsqa\\lxspwvvj.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4368	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2828	lxspwvvj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2828 set thread context of 4368	2828	lxspwvvj.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
2596	sc.exe
1344	sc.exe
2940	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
2856	1052	WerFault.exe	82
4504	2828	WerFault.exe	93

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	lxspwvvj.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1052 wrote to memory of 4484	1052	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe	83
PID 1052 wrote to memory of 4484	1052	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe	83
PID 1052 wrote to memory of 4484	1052	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe	83
PID 1052 wrote to memory of 3488	1052	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe	85
PID 1052 wrote to memory of 3488	1052	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe	85
PID 1052 wrote to memory of 3488	1052	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe	85
PID 1052 wrote to memory of 2596	1052	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe	87
PID 1052 wrote to memory of 2596	1052	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe	87
PID 1052 wrote to memory of 2596	1052	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe	87
PID 1052 wrote to memory of 1344	1052	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe	89
PID 1052 wrote to memory of 1344	1052	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe	89
PID 1052 wrote to memory of 1344	1052	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe	89
PID 1052 wrote to memory of 2940	1052	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe	91
PID 1052 wrote to memory of 2940	1052	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe	91
PID 1052 wrote to memory of 2940	1052	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe	91
PID 1052 wrote to memory of 3608	1052	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe	94
PID 1052 wrote to memory of 3608	1052	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe	94
PID 1052 wrote to memory of 3608	1052	b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe	94
PID 2828 wrote to memory of 4368	2828	lxspwvvj.exe	100
PID 2828 wrote to memory of 4368	2828	lxspwvvj.exe	100
PID 2828 wrote to memory of 4368	2828	lxspwvvj.exe	100
PID 2828 wrote to memory of 4368	2828	lxspwvvj.exe	100
PID 2828 wrote to memory of 4368	2828	lxspwvvj.exe	100

C:\Users\Admin\AppData\Local\Temp\b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xkgwsqa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4484
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lxspwvvj.exe" C:\Windows\SysWOW64\xkgwsqa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3488
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xkgwsqa binPath= "C:\Windows\SysWOW64\xkgwsqa\lxspwvvj.exe /d\"C:\Users\Admin\AppData\Local\Temp\b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2596
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xkgwsqa "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1344
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xkgwsqa
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2940
- 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:3608
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1052 -s 1040
  2⤵
  - Program crash
  PID:2856

C:\Windows\SysWOW64\xkgwsqa\lxspwvvj.exe
C:\Windows\SysWOW64\xkgwsqa\lxspwvvj.exe /d"C:\Users\Admin\AppData\Local\Temp\b45db2c776b80d9917734597ec4aaec7_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2828
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4368
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2828 -s 520
  2⤵
  - Program crash
  PID:4504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1052 -ip 1052
1⤵
PID:4204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2828 -ip 2828
1⤵
PID:2740

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\lxspwvvj.exe

Filesize
11.6MB

MD5
d96a8dff04caf2248f6d6136bb0be361

SHA1
513e449c332c871777afd7b9855b21984d98d4e9

SHA256
8ef2a0eb1c950c5cc0cd31ca11260793fcdb5bde2ad607da5dcaec501e43bb87

SHA512
7f914897d75b2b0b4506b4c2d2b5cc64907efb0b9b066da139ec92516671bb6abaa9799f9d2fe5036fce0e472c455f1746bf35cc96f51ef22ac0a7eeb9e1c08e

Download Submit
memory/1052-9-0x0000000000E00000-0x0000000000E13000-memory.dmp

Filesize
76KB

Download
memory/1052-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1052-2-0x0000000000E00000-0x0000000000E13000-memory.dmp

Filesize
76KB

Download
memory/1052-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1052-8-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/1052-1-0x0000000000870000-0x0000000000970000-memory.dmp

Filesize
1024KB

Download
memory/2828-11-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/2828-15-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/2828-16-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/4368-12-0x0000000000A00000-0x0000000000A15000-memory.dmp

Filesize
84KB

Download
memory/4368-14-0x0000000000A00000-0x0000000000A15000-memory.dmp

Filesize
84KB

Download
memory/4368-17-0x0000000000A00000-0x0000000000A15000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads