tofsee | cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e

General

Target

JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe
Size

292KB
MD5

233cbf353673f230bc6ac3dfc4ba231b
SHA1

beb0d57cac314f0f6516cdc31e1e380982989450
SHA256

cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e
SHA512

fb2494db2760b7381e0abaf7bc02660cd1780c57e0abf06ce6d21099c69109a3b4715fa87ab09c9293a82049b91a69318a6f8557b155c68bab2d3129a97b4418
SSDEEP

6144:7gDFgfRlILqtqILeleWxIlUMNYji6loYTet/S6s/:7sFel9txrGIlUMNYji6jmS6y

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
2272	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\yromlnw\ImagePath = "C:\\Windows\\SysWOW64\\yromlnw\\moixtplc.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe

Deletes itself 1 IoCs

pid	Process
3668	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5112	moixtplc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5112 set thread context of 3668	5112	moixtplc.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
4624	sc.exe
1964	sc.exe
3916	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
1064	2004	WerFault.exe	82
4920	5112	WerFault.exe	94

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	moixtplc.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 3936	2004	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe	83
PID 2004 wrote to memory of 3936	2004	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe	83
PID 2004 wrote to memory of 3936	2004	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe	83
PID 2004 wrote to memory of 4852	2004	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe	85
PID 2004 wrote to memory of 4852	2004	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe	85
PID 2004 wrote to memory of 4852	2004	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe	85
PID 2004 wrote to memory of 1964	2004	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe	87
PID 2004 wrote to memory of 1964	2004	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe	87
PID 2004 wrote to memory of 1964	2004	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe	87
PID 2004 wrote to memory of 3916	2004	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe	90
PID 2004 wrote to memory of 3916	2004	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe	90
PID 2004 wrote to memory of 3916	2004	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe	90
PID 2004 wrote to memory of 4624	2004	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe	92
PID 2004 wrote to memory of 4624	2004	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe	92
PID 2004 wrote to memory of 4624	2004	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe	92
PID 2004 wrote to memory of 2272	2004	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe	95
PID 2004 wrote to memory of 2272	2004	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe	95
PID 2004 wrote to memory of 2272	2004	JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe	95
PID 5112 wrote to memory of 3668	5112	moixtplc.exe	101
PID 5112 wrote to memory of 3668	5112	moixtplc.exe	101
PID 5112 wrote to memory of 3668	5112	moixtplc.exe	101
PID 5112 wrote to memory of 3668	5112	moixtplc.exe	101
PID 5112 wrote to memory of 3668	5112	moixtplc.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yromlnw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3936
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\moixtplc.exe" C:\Windows\SysWOW64\yromlnw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4852
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yromlnw binPath= "C:\Windows\SysWOW64\yromlnw\moixtplc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yromlnw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3916
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yromlnw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4624
- 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:2272
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2004 -s 652
  2⤵
  - Program crash
  PID:1064

C:\Windows\SysWOW64\yromlnw\moixtplc.exe
C:\Windows\SysWOW64\yromlnw\moixtplc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cef42e263e7f019309f54211a3631a6307227afd9a14b2be82594d71401e943e.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5112
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3668
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5112 -s 516
  2⤵
  - Program crash
  PID:4920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2004 -ip 2004
1⤵
PID:4112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 5112 -ip 5112
1⤵
PID:5052

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\moixtplc.exe

Filesize
11.3MB

MD5
8f4ef58b824cda64c32bd66e6e600071

SHA1
479c652d94b9274456a6eae62ada0bfe1e414a7f

SHA256
342d36f79747d86b94d6afa4be30ce4253fa7e83a430d9f4ac7711de937c9770

SHA512
5b91b1f2e4c384d812a3c56b3a280b4af714f5ab9518576597f7dc098b869e511af31e8039f86f4743639e26669b3204add96f05f8e2332ca935408c1b6732f1

Download Submit
memory/2004-1-0x0000000000900000-0x0000000000A00000-memory.dmp

Filesize
1024KB

Download
memory/2004-2-0x0000000002630000-0x0000000002643000-memory.dmp

Filesize
76KB

Download
memory/2004-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2004-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2004-8-0x0000000002630000-0x0000000002643000-memory.dmp

Filesize
76KB

Download
memory/2004-7-0x0000000000400000-0x00000000008ED000-memory.dmp

Filesize
4.9MB

Download
memory/3668-11-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/3668-13-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/3668-14-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/5112-15-0x0000000000400000-0x00000000008ED000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads