tofsee | 3eb3900790a91391988a5520594c8f90d2581afaac2fbb576ba1812fb1db79dd

General

Target

JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe
Size

14.9MB
MD5

6d44a2ceb6996d01aefc9e0e755cf640
SHA1

083572a90988e5f33450395bd968b163a6387832
SHA256

3eb3900790a91391988a5520594c8f90d2581afaac2fbb576ba1812fb1db79dd
SHA512

f1e5bf6ca46656b789a5c31c08aed53843c7b4e2c4d626482fc5fe805c10c0ae94b34f0c05006db71d6e7584972056a7de3f6e3c51837cee647942af8f11278f
SSDEEP

3072:2mdL0JBLyVwRZKAmk5vJZSIfoCwGtjKrcGyzFjCSaahGAjtK27HyHOUTKeJhXeyF:YRZK2wrCw8KrWzFjV5hGwKsHyuU/O

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
3140	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\rgzgowcj\ImagePath = "C:\\Windows\\SysWOW64\\rgzgowcj\\xtiinuar.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe

Deletes itself 1 IoCs

pid	Process
836	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2460	xtiinuar.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2460 set thread context of 836	2460	xtiinuar.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
652	sc.exe
3968	sc.exe
3508	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
4548	2364	WerFault.exe	81
2580	2460	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	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.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	xtiinuar.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2248	2364	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe	82
PID 2364 wrote to memory of 2248	2364	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe	82
PID 2364 wrote to memory of 2248	2364	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe	82
PID 2364 wrote to memory of 3960	2364	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe	84
PID 2364 wrote to memory of 3960	2364	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe	84
PID 2364 wrote to memory of 3960	2364	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe	84
PID 2364 wrote to memory of 3968	2364	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe	86
PID 2364 wrote to memory of 3968	2364	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe	86
PID 2364 wrote to memory of 3968	2364	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe	86
PID 2364 wrote to memory of 3508	2364	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe	88
PID 2364 wrote to memory of 3508	2364	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe	88
PID 2364 wrote to memory of 3508	2364	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe	88
PID 2364 wrote to memory of 652	2364	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe	90
PID 2364 wrote to memory of 652	2364	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe	90
PID 2364 wrote to memory of 652	2364	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe	90
PID 2364 wrote to memory of 3140	2364	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe	93
PID 2364 wrote to memory of 3140	2364	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe	93
PID 2364 wrote to memory of 3140	2364	JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe	93
PID 2460 wrote to memory of 836	2460	xtiinuar.exe	98
PID 2460 wrote to memory of 836	2460	xtiinuar.exe	98
PID 2460 wrote to memory of 836	2460	xtiinuar.exe	98
PID 2460 wrote to memory of 836	2460	xtiinuar.exe	98
PID 2460 wrote to memory of 836	2460	xtiinuar.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rgzgowcj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2248
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xtiinuar.exe" C:\Windows\SysWOW64\rgzgowcj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rgzgowcj binPath= "C:\Windows\SysWOW64\rgzgowcj\xtiinuar.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3968
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rgzgowcj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3508
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rgzgowcj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:652
- 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:3140
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2364 -s 1040
  2⤵
  - Program crash
  PID:4548

C:\Windows\SysWOW64\rgzgowcj\xtiinuar.exe
C:\Windows\SysWOW64\rgzgowcj\xtiinuar.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6d44a2ceb6996d01aefc9e0e755cf640.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:836
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2460 -s 524
  2⤵
  - Program crash
  PID:2580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2364 -ip 2364
1⤵
PID:540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 2460 -ip 2460
1⤵
PID:5060

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\xtiinuar.exe

Filesize
14.7MB

MD5
f633e30834fa2fdf228e1139b39d1708

SHA1
1de6b46b6a08eeb1102fc65bb03813703161ee88

SHA256
a9d376a990ea684b4cde31fd2eae6fbca487642a46b85af9523a4e2dac7016ad

SHA512
76ef3b9a8564b82f53d4b7748b42626c7e3ca96053a72014a0b069b1cb047bd436b03f2a1196c7ed4d8e851798ce2355a00556ce7811f902026569e7b8707767

Download Submit
memory/836-11-0x0000000000760000-0x0000000000775000-memory.dmp

Filesize
84KB

Download
memory/836-14-0x0000000000760000-0x0000000000775000-memory.dmp

Filesize
84KB

Download
memory/836-15-0x0000000000760000-0x0000000000775000-memory.dmp

Filesize
84KB

Download
memory/2364-2-0x0000000001820000-0x0000000001833000-memory.dmp

Filesize
76KB

Download
memory/2364-1-0x0000000001840000-0x0000000001940000-memory.dmp

Filesize
1024KB

Download
memory/2364-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2364-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2364-9-0x0000000001820000-0x0000000001833000-memory.dmp

Filesize
76KB

Download
memory/2364-8-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/2460-12-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/2460-16-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads