tofsee | d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27

General

Target

JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe
Size

186KB
MD5

64c68256f7f207094671f6f01fd3dfc7
SHA1

6e0be13a130b4fba1dcc3fcc820d94f822689464
SHA256

d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27
SHA512

2c755bb99e0d4a995f78d1b8fd52784246a43fbc7c1bcc08a4273e39ae749d58436cb0e3a83e73b007ca86b76edd450207f97fcdf53dc974646c68c02fe0b8fe
SSDEEP

3072:Y7c4r7YqcnhiR+tHVPc275lz+rBqX9eGwPNSa9e92czp:gcqchiRiPcuh+rE9etPQa9w2ct

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
3244	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\zrvtmb\ImagePath = "C:\\Windows\\SysWOW64\\zrvtmb\\spafdnkh.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe

Deletes itself 1 IoCs

pid	Process
3112	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4576	spafdnkh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4576 set thread context of 3112	4576	spafdnkh.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1516	sc.exe
1804	sc.exe
1920	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
2920	2180	WerFault.exe	81
5000	4576	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	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	spafdnkh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 992	2180	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe	82
PID 2180 wrote to memory of 992	2180	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe	82
PID 2180 wrote to memory of 992	2180	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe	82
PID 2180 wrote to memory of 4768	2180	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe	84
PID 2180 wrote to memory of 4768	2180	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe	84
PID 2180 wrote to memory of 4768	2180	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe	84
PID 2180 wrote to memory of 1516	2180	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe	86
PID 2180 wrote to memory of 1516	2180	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe	86
PID 2180 wrote to memory of 1516	2180	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe	86
PID 2180 wrote to memory of 1804	2180	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe	88
PID 2180 wrote to memory of 1804	2180	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe	88
PID 2180 wrote to memory of 1804	2180	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe	88
PID 2180 wrote to memory of 1920	2180	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe	90
PID 2180 wrote to memory of 1920	2180	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe	90
PID 2180 wrote to memory of 1920	2180	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe	90
PID 2180 wrote to memory of 3244	2180	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe	93
PID 2180 wrote to memory of 3244	2180	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe	93
PID 2180 wrote to memory of 3244	2180	JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe	93
PID 4576 wrote to memory of 3112	4576	spafdnkh.exe	98
PID 4576 wrote to memory of 3112	4576	spafdnkh.exe	98
PID 4576 wrote to memory of 3112	4576	spafdnkh.exe	98
PID 4576 wrote to memory of 3112	4576	spafdnkh.exe	98
PID 4576 wrote to memory of 3112	4576	spafdnkh.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zrvtmb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:992
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\spafdnkh.exe" C:\Windows\SysWOW64\zrvtmb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zrvtmb binPath= "C:\Windows\SysWOW64\zrvtmb\spafdnkh.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1516
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zrvtmb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zrvtmb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1920
- 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:3244
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2180 -s 668
  2⤵
  - Program crash
  PID:2920

C:\Windows\SysWOW64\zrvtmb\spafdnkh.exe
C:\Windows\SysWOW64\zrvtmb\spafdnkh.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d64403ee58f2ea101e484cfc729f8a6b257f6d878407a59c4ff30f22f9341e27.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4576
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3112
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4576 -s 520
  2⤵
  - Program crash
  PID:5000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2180 -ip 2180
1⤵
PID:184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4576 -ip 4576
1⤵
PID:4216

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\spafdnkh.exe

Filesize
13.0MB

MD5
660fc42ef96d07bfeaca330c7db6bdbd

SHA1
b3d52cb7dfcce39c8ccb4c1d4ea648fc14904a0f

SHA256
d94c6f9bcadc986dbfde85a749241f58c1d17feab2146181174c90142e329e7a

SHA512
c2453cdf4aa17b2370cc1194becb596a7f6309719bfaf1c20495445df399b379a6868c116e4b41f5c024670c7f6e465573a2abf71c1248ecf809bd8a82fc562a

Download Submit
memory/2180-8-0x0000000002180000-0x0000000002193000-memory.dmp

Filesize
76KB

Download
memory/2180-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2180-1-0x0000000002180000-0x0000000002193000-memory.dmp

Filesize
76KB

Download
memory/2180-6-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2180-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2180-0-0x0000000002170000-0x000000000217D000-memory.dmp

Filesize
52KB

Download
memory/2180-7-0x0000000002170000-0x000000000217D000-memory.dmp

Filesize
52KB

Download
memory/3112-12-0x0000000000270000-0x0000000000285000-memory.dmp

Filesize
84KB

Download
memory/3112-14-0x0000000000270000-0x0000000000285000-memory.dmp

Filesize
84KB

Download
memory/3112-15-0x0000000000270000-0x0000000000285000-memory.dmp

Filesize
84KB

Download
memory/4576-10-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/4576-11-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/4576-16-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads