tofsee | d72ac4743305a738a0fda64272d002ab491e2ab53da89d2f504e0676521d1958

General

Target

7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe
Size

11.9MB
MD5

7bba0ff4a89197cd722d7f2b0cb64fd8
SHA1

a8ace94042d34b4f0dd7baa32bc85b6c8fe9c963
SHA256

d72ac4743305a738a0fda64272d002ab491e2ab53da89d2f504e0676521d1958
SHA512

b516e2ca8676353d1461a7424c2784ccd7dbf509ee5e000990aecb833358202e19819a46418f93007904dd1f0fa87804c9598e5f524c4d79220e7b7540cdeab4
SSDEEP

24576:tMLXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH:tM

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
628	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\tgfzeivh\ImagePath = "C:\\Windows\\SysWOW64\\tgfzeivh\\veuijxms.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	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3688	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1664	veuijxms.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1664 set thread context of 3688	1664	veuijxms.exe	118

Launches sc.exe 3 IoCs

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

pid	Process
1248	sc.exe
1544	sc.exe
3424	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
1104	4716	WerFault.exe	83
4480	1664	WerFault.exe	105

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	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	veuijxms.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4716 wrote to memory of 3944	4716	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe	88
PID 4716 wrote to memory of 3944	4716	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe	88
PID 4716 wrote to memory of 3944	4716	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe	88
PID 4716 wrote to memory of 116	4716	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe	93
PID 4716 wrote to memory of 116	4716	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe	93
PID 4716 wrote to memory of 116	4716	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe	93
PID 4716 wrote to memory of 1248	4716	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe	95
PID 4716 wrote to memory of 1248	4716	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe	95
PID 4716 wrote to memory of 1248	4716	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe	95
PID 4716 wrote to memory of 1544	4716	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe	101
PID 4716 wrote to memory of 1544	4716	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe	101
PID 4716 wrote to memory of 1544	4716	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe	101
PID 4716 wrote to memory of 3424	4716	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe	103
PID 4716 wrote to memory of 3424	4716	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe	103
PID 4716 wrote to memory of 3424	4716	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe	103
PID 4716 wrote to memory of 628	4716	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe	106
PID 4716 wrote to memory of 628	4716	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe	106
PID 4716 wrote to memory of 628	4716	7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe	106
PID 1664 wrote to memory of 3688	1664	veuijxms.exe	118
PID 1664 wrote to memory of 3688	1664	veuijxms.exe	118
PID 1664 wrote to memory of 3688	1664	veuijxms.exe	118
PID 1664 wrote to memory of 3688	1664	veuijxms.exe	118
PID 1664 wrote to memory of 3688	1664	veuijxms.exe	118

C:\Users\Admin\AppData\Local\Temp\7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tgfzeivh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3944
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\veuijxms.exe" C:\Windows\SysWOW64\tgfzeivh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tgfzeivh binPath= "C:\Windows\SysWOW64\tgfzeivh\veuijxms.exe /d\"C:\Users\Admin\AppData\Local\Temp\7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1248
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tgfzeivh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1544
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tgfzeivh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3424
- 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:628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4716 -s 664
  2⤵
  - Program crash
  PID:1104

C:\Windows\SysWOW64\tgfzeivh\veuijxms.exe
C:\Windows\SysWOW64\tgfzeivh\veuijxms.exe /d"C:\Users\Admin\AppData\Local\Temp\7bba0ff4a89197cd722d7f2b0cb64fd8_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1664
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3688
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1664 -s 540
  2⤵
  - Program crash
  PID:4480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4716 -ip 4716
1⤵
PID:1816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1664 -ip 1664
1⤵
PID:2032

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\veuijxms.exe

Filesize
12.2MB

MD5
aea29ba8ca99af5cac884928f33f2748

SHA1
78c5f538fe7af64afd8babd1216423b8ed061a67

SHA256
b2f631d48e2acc5a42eb222e15ae37ddb64eeaac79a215ffaf0ad0fc619223ab

SHA512
74cc53fc8c9c144483e91381e2bc7e43546a95eb532f458cfd3459a7a60d50208b01598360688a3421681abbef1e7599f7bc55ea1ba629ccf9320d3eff7641b1

Download Submit
memory/1664-15-0x0000000000400000-0x0000000002C6D000-memory.dmp

Filesize
40.4MB

Download
memory/3688-11-0x0000000000F30000-0x0000000000F45000-memory.dmp

Filesize
84KB

Download
memory/3688-13-0x0000000000F30000-0x0000000000F45000-memory.dmp

Filesize
84KB

Download
memory/3688-14-0x0000000000F30000-0x0000000000F45000-memory.dmp

Filesize
84KB

Download
memory/4716-1-0x0000000002C90000-0x0000000002D90000-memory.dmp

Filesize
1024KB

Download
memory/4716-2-0x0000000002DF0000-0x0000000002E03000-memory.dmp

Filesize
76KB

Download
memory/4716-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4716-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4716-9-0x0000000002DF0000-0x0000000002E03000-memory.dmp

Filesize
76KB

Download
memory/4716-8-0x0000000000400000-0x0000000002C6D000-memory.dmp

Filesize
40.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads