tofsee | 52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a

General

Target

JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe
Size

291KB
MD5

4e6018f8aa4e23f9682ad29bbe4bff86
SHA1

314329b8e37fed0104cf518ed7e221c77f78a217
SHA256

52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a
SHA512

f265ffb7ca36419f45c2cbc28cd14a26e0720355e6950426ca357c57e67c671252f2220a6dc6d236185129951796e9cd352dd2e5425acd9024a4806692a0d743
SSDEEP

6144:C9DzZDKZGtx0NSBXbTW8WxQs9dcBHKNUp/rcAst:ClztVtxNrtGQs9dcBHKNAst

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
2144	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\rphitbqh\ImagePath = "C:\\Windows\\SysWOW64\\rphitbqh\\sytwfooj.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe

Deletes itself 1 IoCs

pid	Process
3168	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2820	sytwfooj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2820 set thread context of 3168	2820	sytwfooj.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
944	sc.exe
4836	sc.exe
2660	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2112	3876	WerFault.exe	82
2768	2820	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	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.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	sytwfooj.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 3876 wrote to memory of 4840	3876	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe	83
PID 3876 wrote to memory of 4840	3876	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe	83
PID 3876 wrote to memory of 4840	3876	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe	83
PID 3876 wrote to memory of 3752	3876	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe	85
PID 3876 wrote to memory of 3752	3876	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe	85
PID 3876 wrote to memory of 3752	3876	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe	85
PID 3876 wrote to memory of 944	3876	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe	87
PID 3876 wrote to memory of 944	3876	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe	87
PID 3876 wrote to memory of 944	3876	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe	87
PID 3876 wrote to memory of 4836	3876	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe	89
PID 3876 wrote to memory of 4836	3876	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe	89
PID 3876 wrote to memory of 4836	3876	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe	89
PID 3876 wrote to memory of 2660	3876	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe	91
PID 3876 wrote to memory of 2660	3876	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe	91
PID 3876 wrote to memory of 2660	3876	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe	91
PID 3876 wrote to memory of 2144	3876	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe	94
PID 3876 wrote to memory of 2144	3876	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe	94
PID 3876 wrote to memory of 2144	3876	JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe	94
PID 2820 wrote to memory of 3168	2820	sytwfooj.exe	100
PID 2820 wrote to memory of 3168	2820	sytwfooj.exe	100
PID 2820 wrote to memory of 3168	2820	sytwfooj.exe	100
PID 2820 wrote to memory of 3168	2820	sytwfooj.exe	100
PID 2820 wrote to memory of 3168	2820	sytwfooj.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3876
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rphitbqh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4840
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sytwfooj.exe" C:\Windows\SysWOW64\rphitbqh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rphitbqh binPath= "C:\Windows\SysWOW64\rphitbqh\sytwfooj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rphitbqh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rphitbqh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2660
- 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:2144
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3876 -s 1048
  2⤵
  - Program crash
  PID:2112

C:\Windows\SysWOW64\rphitbqh\sytwfooj.exe
C:\Windows\SysWOW64\rphitbqh\sytwfooj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_52e330e3855744ad7120e6ad39dff2b8a6c3bbdb217164fd7443fc8c06f54e1a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3168
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2820 -s 516
  2⤵
  - Program crash
  PID:2768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3876 -ip 3876
1⤵
PID:3232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2820 -ip 2820
1⤵
PID:4844

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\sytwfooj.exe

Filesize
14.9MB

MD5
5e9ac3cc4f50d2b40786d318e1b548d4

SHA1
b05d5418f7e90aff19244791d4e7a54b3c46b7b5

SHA256
78f43f2c476607cb79ee42b153d9aa4539378f67c8a0db49a6a6b05a0a2c615f

SHA512
b9122942f8a6af8d77045dc420d3b048c4933eb7349eb0f0de3092f8f090cd6e997b07ef284bb2f58ead326d91bae3729e5ec5a237b8b4230a87024e3b01ea35

Download Submit
memory/2820-14-0x0000000000400000-0x00000000008ED000-memory.dmp

Filesize
4.9MB

Download
memory/2820-15-0x0000000000400000-0x00000000008ED000-memory.dmp

Filesize
4.9MB

Download
memory/3168-11-0x0000000000980000-0x0000000000995000-memory.dmp

Filesize
84KB

Download
memory/3168-13-0x0000000000980000-0x0000000000995000-memory.dmp

Filesize
84KB

Download
memory/3168-16-0x0000000000980000-0x0000000000995000-memory.dmp

Filesize
84KB

Download
memory/3876-1-0x0000000000A30000-0x0000000000B30000-memory.dmp

Filesize
1024KB

Download
memory/3876-2-0x00000000009C0000-0x00000000009D3000-memory.dmp

Filesize
76KB

Download
memory/3876-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3876-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3876-7-0x0000000000400000-0x00000000008ED000-memory.dmp

Filesize
4.9MB

Download
memory/3876-8-0x00000000009C0000-0x00000000009D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads