tofsee | d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034

General

Target

JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe
Size

287KB
MD5

416145a7704107f66a3d8a498cc69bf5
SHA1

0a9e964946607de5c7043ddbcb7d61a9f2c16b04
SHA256

d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034
SHA512

3a22738f17ae0a1353aa4c309a5696c6fe8e9e14c124578e1c56c09fc73bd34d800183df59e70567dc5076c5deec7325f55c2b3addea995faa4210d27139ee7d
SSDEEP

6144:pTAn1CWp268ehhPaIB1vVtcL30TGBi25x:ZAIT6BhhPxB1vVtO0TGBi

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

mubrikych.top

oxxyfix.xyz

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
2396	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\zqskfvdy\ImagePath = "C:\\Windows\\SysWOW64\\zqskfvdy\\uqywjhgn.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe

Deletes itself 1 IoCs

pid	Process
5044	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3528	uqywjhgn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3528 set thread context of 5044	3528	uqywjhgn.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1376	sc.exe
3972	sc.exe
2984	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
712	1112	WerFault.exe	81
2732	3528	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uqywjhgn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1112 wrote to memory of 4308	1112	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe	82
PID 1112 wrote to memory of 4308	1112	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe	82
PID 1112 wrote to memory of 4308	1112	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe	82
PID 1112 wrote to memory of 3520	1112	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe	84
PID 1112 wrote to memory of 3520	1112	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe	84
PID 1112 wrote to memory of 3520	1112	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe	84
PID 1112 wrote to memory of 3972	1112	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe	86
PID 1112 wrote to memory of 3972	1112	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe	86
PID 1112 wrote to memory of 3972	1112	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe	86
PID 1112 wrote to memory of 2984	1112	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe	88
PID 1112 wrote to memory of 2984	1112	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe	88
PID 1112 wrote to memory of 2984	1112	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe	88
PID 1112 wrote to memory of 1376	1112	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe	90
PID 1112 wrote to memory of 1376	1112	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe	90
PID 1112 wrote to memory of 1376	1112	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe	90
PID 1112 wrote to memory of 2396	1112	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe	93
PID 1112 wrote to memory of 2396	1112	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe	93
PID 1112 wrote to memory of 2396	1112	JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe	93
PID 3528 wrote to memory of 5044	3528	uqywjhgn.exe	98
PID 3528 wrote to memory of 5044	3528	uqywjhgn.exe	98
PID 3528 wrote to memory of 5044	3528	uqywjhgn.exe	98
PID 3528 wrote to memory of 5044	3528	uqywjhgn.exe	98
PID 3528 wrote to memory of 5044	3528	uqywjhgn.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1112
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zqskfvdy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4308
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uqywjhgn.exe" C:\Windows\SysWOW64\zqskfvdy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3520
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zqskfvdy binPath= "C:\Windows\SysWOW64\zqskfvdy\uqywjhgn.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zqskfvdy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2984
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zqskfvdy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1376
- 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:2396
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1112 -s 648
  2⤵
  - Program crash
  PID:712

C:\Windows\SysWOW64\zqskfvdy\uqywjhgn.exe
C:\Windows\SysWOW64\zqskfvdy\uqywjhgn.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d4f26d3820d12d559203afb74595449c5098c7f3d692284a0eab05d8e2e7a034.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3528
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 536
  2⤵
  - Program crash
  PID:2732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1112 -ip 1112
1⤵
PID:1924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3528 -ip 3528
1⤵
PID:2760

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\uqywjhgn.exe

Filesize
11.5MB

MD5
fbda69f93de95c868715e94aaf30d260

SHA1
10b098b93dae8f8bf88caa713fd29d5188a523a0

SHA256
efe5f1cd0912ca6b42b31bd81278f84d16e3cefc931544c2ffe638eb973ff3c1

SHA512
de36a6bef8fe1d5452e2f9a194531f0fd2b43f69006c20e3cb4546021e4e3b055b427cba99f79bccef903018ffd6c42c9f9d2c264c46a9b35c78aa74e2f51a88

Download Submit
memory/1112-8-0x0000000000550000-0x0000000000563000-memory.dmp

Filesize
76KB

Download
memory/1112-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1112-2-0x0000000000550000-0x0000000000563000-memory.dmp

Filesize
76KB

Download
memory/1112-7-0x0000000000400000-0x00000000004C9000-memory.dmp

Filesize
804KB

Download
memory/1112-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1112-1-0x0000000000720000-0x0000000000820000-memory.dmp

Filesize
1024KB

Download
memory/3528-12-0x0000000000400000-0x00000000004C9000-memory.dmp

Filesize
804KB

Download
memory/3528-11-0x0000000000400000-0x00000000004C9000-memory.dmp

Filesize
804KB

Download
memory/3528-13-0x0000000000400000-0x00000000004C9000-memory.dmp

Filesize
804KB

Download
memory/3528-18-0x0000000000400000-0x00000000004C9000-memory.dmp

Filesize
804KB

Download
memory/5044-14-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/5044-16-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/5044-17-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads