tofsee | 3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55

General

Target

JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe
Size

281KB
MD5

2840d22a020bc638ed748b3c1358e0fe
SHA1

cc3aa1f4f2bedb979c5d1f94b3cbcce3eead5bc8
SHA256

3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55
SHA512

c5987b6b3454ac5a17fca6df1246b9678d9c387aabd422827d2d7cd95bc6a3ae33b9743f7ef9f8a78ae07c1e07650e3911ce0aaf4a05a3a978e3e55ac90a7898
SSDEEP

6144:aozHI8/57wH+3eTnl7QQriROhxxpeTr/ekI:3HP/57wH+urlcQrXzxp6L

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
2496	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\kipmjjlz\ImagePath = "C:\\Windows\\SysWOW64\\kipmjjlz\\selfkqdl.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe

Deletes itself 1 IoCs

pid	Process
4576	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
208	selfkqdl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 208 set thread context of 4576	208	selfkqdl.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
4476	sc.exe
3964	sc.exe
1132	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
2716	4672	WerFault.exe	82
100	208	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.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	selfkqdl.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4672 wrote to memory of 4700	4672	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	83
PID 4672 wrote to memory of 4700	4672	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	83
PID 4672 wrote to memory of 4700	4672	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	83
PID 4672 wrote to memory of 2348	4672	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	85
PID 4672 wrote to memory of 2348	4672	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	85
PID 4672 wrote to memory of 2348	4672	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	85
PID 4672 wrote to memory of 4476	4672	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	88
PID 4672 wrote to memory of 4476	4672	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	88
PID 4672 wrote to memory of 4476	4672	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	88
PID 4672 wrote to memory of 3964	4672	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	90
PID 4672 wrote to memory of 3964	4672	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	90
PID 4672 wrote to memory of 3964	4672	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	90
PID 4672 wrote to memory of 1132	4672	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	92
PID 4672 wrote to memory of 1132	4672	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	92
PID 4672 wrote to memory of 1132	4672	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	92
PID 4672 wrote to memory of 2496	4672	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	95
PID 4672 wrote to memory of 2496	4672	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	95
PID 4672 wrote to memory of 2496	4672	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	95
PID 208 wrote to memory of 4576	208	selfkqdl.exe	101
PID 208 wrote to memory of 4576	208	selfkqdl.exe	101
PID 208 wrote to memory of 4576	208	selfkqdl.exe	101
PID 208 wrote to memory of 4576	208	selfkqdl.exe	101
PID 208 wrote to memory of 4576	208	selfkqdl.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4672
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kipmjjlz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4700
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\selfkqdl.exe" C:\Windows\SysWOW64\kipmjjlz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2348
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kipmjjlz binPath= "C:\Windows\SysWOW64\kipmjjlz\selfkqdl.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4476
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kipmjjlz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kipmjjlz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1132
- 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:2496
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4672 -s 680
  2⤵
  - Program crash
  PID:2716

C:\Windows\SysWOW64\kipmjjlz\selfkqdl.exe
C:\Windows\SysWOW64\kipmjjlz\selfkqdl.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:208
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4576
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 208 -s 560
  2⤵
  - Program crash
  PID:100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4672 -ip 4672
1⤵
PID:2016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 208 -ip 208
1⤵
PID:2508

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\selfkqdl.exe

Filesize
12.2MB

MD5
fe0a8b4f0c481b4bde75f2cf730a6bdb

SHA1
dd493344f60ade651de6da4405ffd37dbb8491e5

SHA256
aa9c93ee4c0c2840c9d3916413a92ead7ee12b8f83f3809df6797148a17c04a4

SHA512
49fbf22a4019b8f5acc1aa6cbb40bcbd7ce4cefb4c7a259077fa845d5d9ef4b081e2cefd122f67dedc79af5aa4377446e298569e5a8d2cc090f8eb273ff038dc

Download Submit
memory/208-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/208-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/208-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/208-18-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4576-14-0x0000000000FB0000-0x0000000000FC5000-memory.dmp

Filesize
84KB

Download
memory/4576-16-0x0000000000FB0000-0x0000000000FC5000-memory.dmp

Filesize
84KB

Download
memory/4576-17-0x0000000000FB0000-0x0000000000FC5000-memory.dmp

Filesize
84KB

Download
memory/4672-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4672-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4672-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4672-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4672-8-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4672-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads