tofsee | 854edc0ec49f738273a7a1a97ec82ff26535b6891d79d64194f75ca6fd0610cb

General

Target

JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe
Size

14.9MB
MD5

babe7231d0a0ad19e2eeb1b4705d05e3
SHA1

d53dc83958869b331b81a70d063db0d7775a6807
SHA256

854edc0ec49f738273a7a1a97ec82ff26535b6891d79d64194f75ca6fd0610cb
SHA512

1079d9e02f9c984b0aa9b98f9a1e283c0f09eaee443e879e24d638350a138bbb43bf3642735586fd4a35fc2cc51887143ea1a8bc27d1691af70e158e553d9d60
SSDEEP

196608:bpWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWH:

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
4344	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\ytrcdrul\ImagePath = "C:\\Windows\\SysWOW64\\ytrcdrul\\ejtjxc.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_babe7231d0a0ad19e2eeb1b4705d05e3.exe

Deletes itself 1 IoCs

pid	Process
2088	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3504	ejtjxc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3504 set thread context of 2088	3504	ejtjxc.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
2344	sc.exe
208	sc.exe
3612	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4496	2892	WerFault.exe	81
3724	3504	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ejtjxc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2892 wrote to memory of 1196	2892	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe	82
PID 2892 wrote to memory of 1196	2892	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe	82
PID 2892 wrote to memory of 1196	2892	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe	82
PID 2892 wrote to memory of 736	2892	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe	84
PID 2892 wrote to memory of 736	2892	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe	84
PID 2892 wrote to memory of 736	2892	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe	84
PID 2892 wrote to memory of 3612	2892	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe	86
PID 2892 wrote to memory of 3612	2892	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe	86
PID 2892 wrote to memory of 3612	2892	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe	86
PID 2892 wrote to memory of 2344	2892	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe	88
PID 2892 wrote to memory of 2344	2892	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe	88
PID 2892 wrote to memory of 2344	2892	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe	88
PID 2892 wrote to memory of 208	2892	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe	90
PID 2892 wrote to memory of 208	2892	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe	90
PID 2892 wrote to memory of 208	2892	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe	90
PID 2892 wrote to memory of 4344	2892	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe	93
PID 2892 wrote to memory of 4344	2892	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe	93
PID 2892 wrote to memory of 4344	2892	JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe	93
PID 3504 wrote to memory of 2088	3504	ejtjxc.exe	98
PID 3504 wrote to memory of 2088	3504	ejtjxc.exe	98
PID 3504 wrote to memory of 2088	3504	ejtjxc.exe	98
PID 3504 wrote to memory of 2088	3504	ejtjxc.exe	98
PID 3504 wrote to memory of 2088	3504	ejtjxc.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ytrcdrul\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1196
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ejtjxc.exe" C:\Windows\SysWOW64\ytrcdrul\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ytrcdrul binPath= "C:\Windows\SysWOW64\ytrcdrul\ejtjxc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3612
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ytrcdrul "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2344
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ytrcdrul
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:208
- 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:4344
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 900
  2⤵
  - Program crash
  PID:4496

C:\Windows\SysWOW64\ytrcdrul\ejtjxc.exe
C:\Windows\SysWOW64\ytrcdrul\ejtjxc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_babe7231d0a0ad19e2eeb1b4705d05e3.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3504
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2088
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3504 -s 512
  2⤵
  - Program crash
  PID:3724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2892 -ip 2892
1⤵
PID:2140

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3504 -ip 3504
1⤵
PID:5036

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\ejtjxc.exe

Filesize
13.5MB

MD5
10823eb866be6eed0eb306a41ffb0520

SHA1
6d6705af67528454ceeafee632a2a63329c947ae

SHA256
0faa51d38d39604da8a41d0aeee76c1c46b2079f38306b1189266d75d4492b90

SHA512
1f866036f6c7e93ec64c9c47021ff63038a56bc08919184dfc35177ee3df972f6e56601b104bbc1c1ca1731dbabd1c160ff25483cd355e8a90d9307f29241b91

Download Submit
memory/2088-11-0x0000000000D50000-0x0000000000D65000-memory.dmp

Filesize
84KB

Download
memory/2088-13-0x0000000000D50000-0x0000000000D65000-memory.dmp

Filesize
84KB

Download
memory/2088-14-0x0000000000D50000-0x0000000000D65000-memory.dmp

Filesize
84KB

Download
memory/2892-1-0x0000000002F20000-0x0000000003020000-memory.dmp

Filesize
1024KB

Download
memory/2892-2-0x0000000004C40000-0x0000000004C53000-memory.dmp

Filesize
76KB

Download
memory/2892-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2892-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2892-9-0x0000000004C40000-0x0000000004C53000-memory.dmp

Filesize
76KB

Download
memory/2892-8-0x0000000000400000-0x0000000002F0D000-memory.dmp

Filesize
43.1MB

Download
memory/3504-15-0x0000000000400000-0x0000000002F0D000-memory.dmp

Filesize
43.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads