tofsee | e2bccbe745e4aeb17af9be5311326fca14bce9ae8c1f25c01d514393e1f7cf37

General

Target

cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe
Size

12.8MB
MD5

cdef13e7d06a949ff9ef11a34d0c71d1
SHA1

3c175b6542ce46e65586e893075e544e76f09119
SHA256

e2bccbe745e4aeb17af9be5311326fca14bce9ae8c1f25c01d514393e1f7cf37
SHA512

f5bbd2985a9d7f0cdd40bc67c6b5f9a86bb70bc6c9ee49a679161deeb761b64aa8fd0c8e01da8b4da4a207737ea796c676fc75fdd8940cdaa84b9858d7abd0d2
SSDEEP

49152:DT81MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMv:DT8

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
1860	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\fhacxahd\ImagePath = "C:\\Windows\\SysWOW64\\fhacxahd\\nisvjuuc.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	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4832	nisvjuuc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4832 set thread context of 3620	4832	nisvjuuc.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
1588	sc.exe
3108	sc.exe
560	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

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	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.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	nisvjuuc.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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 1892	2888	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe	82
PID 2888 wrote to memory of 1892	2888	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe	82
PID 2888 wrote to memory of 1892	2888	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe	82
PID 2888 wrote to memory of 2452	2888	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe	84
PID 2888 wrote to memory of 2452	2888	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe	84
PID 2888 wrote to memory of 2452	2888	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe	84
PID 2888 wrote to memory of 1588	2888	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe	86
PID 2888 wrote to memory of 1588	2888	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe	86
PID 2888 wrote to memory of 1588	2888	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe	86
PID 2888 wrote to memory of 3108	2888	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe	88
PID 2888 wrote to memory of 3108	2888	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe	88
PID 2888 wrote to memory of 3108	2888	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe	88
PID 2888 wrote to memory of 560	2888	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe	90
PID 2888 wrote to memory of 560	2888	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe	90
PID 2888 wrote to memory of 560	2888	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe	90
PID 2888 wrote to memory of 1860	2888	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe	93
PID 2888 wrote to memory of 1860	2888	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe	93
PID 2888 wrote to memory of 1860	2888	cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe	93
PID 4832 wrote to memory of 3620	4832	nisvjuuc.exe	95
PID 4832 wrote to memory of 3620	4832	nisvjuuc.exe	95
PID 4832 wrote to memory of 3620	4832	nisvjuuc.exe	95
PID 4832 wrote to memory of 3620	4832	nisvjuuc.exe	95
PID 4832 wrote to memory of 3620	4832	nisvjuuc.exe	95

C:\Users\Admin\AppData\Local\Temp\cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2888
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fhacxahd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1892
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nisvjuuc.exe" C:\Windows\SysWOW64\fhacxahd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fhacxahd binPath= "C:\Windows\SysWOW64\fhacxahd\nisvjuuc.exe /d\"C:\Users\Admin\AppData\Local\Temp\cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1588
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fhacxahd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3108
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fhacxahd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:560
- 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:1860

C:\Windows\SysWOW64\fhacxahd\nisvjuuc.exe
C:\Windows\SysWOW64\fhacxahd\nisvjuuc.exe /d"C:\Users\Admin\AppData\Local\Temp\cdef13e7d06a949ff9ef11a34d0c71d1_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4832
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - System Location Discovery: System Language Discovery
  PID:3620

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\nisvjuuc.exe

Filesize
15.0MB

MD5
297aeca549976ee23c5627ea39830a24

SHA1
92d8fa15e80ff1021f2746393590409c71421ee6

SHA256
374edaf4de376e599bf67112711ca470f2442b6aebf9701b78902f54f22b3fdc

SHA512
334945ca14539e6dce24cd502ab7a06866ca7a7a4c1e88a4df5dd4546061036bfe0cdf23528bded867bf343a40a4d7f41d6bf67e40121af64c62436093303ae9

Download Submit
memory/2888-15-0x0000000000610000-0x0000000000623000-memory.dmp

Filesize
76KB

Download
memory/2888-1-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/2888-2-0x0000000000610000-0x0000000000623000-memory.dmp

Filesize
76KB

Download
memory/2888-17-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2888-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2888-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2888-13-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/3620-10-0x0000000000600000-0x0000000000615000-memory.dmp

Filesize
84KB

Download
memory/3620-14-0x0000000000600000-0x0000000000615000-memory.dmp

Filesize
84KB

Download
memory/3620-20-0x0000000000600000-0x0000000000615000-memory.dmp

Filesize
84KB

Download
memory/3620-21-0x0000000000600000-0x0000000000615000-memory.dmp

Filesize
84KB

Download
memory/4832-9-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4832-8-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4832-18-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads