tofsee | cdef47f8b918fee5ff8a3ca635beac2b775340a49cb7a3c16d1da1d36cc220fd

General

Target

JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe
Size

12.8MB
MD5

852603995775096c3faa3134eb1fa8ed
SHA1

5a2954c23b57c72da533bdc66f6eb3d08b11e2b3
SHA256

cdef47f8b918fee5ff8a3ca635beac2b775340a49cb7a3c16d1da1d36cc220fd
SHA512

8e1ce66ec7bbc3d09c0259ebc950adf5aaa6d41bb16da49ba5b89bb1891a8a4d1e0502c463bf6ba0f5802c3ac65d7f3df508e08991625f17274ccc54418ee810
SSDEEP

49152:cN8888888888888888888888888888888888888888888888888888888888888X:

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
3496	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\zokgrony\ImagePath = "C:\\Windows\\SysWOW64\\zokgrony\\dwkwoikx.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe

Deletes itself 1 IoCs

pid	Process
1788	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2436	dwkwoikx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2436 set thread context of 1788	2436	dwkwoikx.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
760	sc.exe
1564	sc.exe
4264	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
2400	2896	WerFault.exe	82
3656	2436	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	svchost.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	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dwkwoikx.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2896 wrote to memory of 840	2896	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe	83
PID 2896 wrote to memory of 840	2896	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe	83
PID 2896 wrote to memory of 840	2896	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe	83
PID 2896 wrote to memory of 404	2896	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe	86
PID 2896 wrote to memory of 404	2896	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe	86
PID 2896 wrote to memory of 404	2896	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe	86
PID 2896 wrote to memory of 760	2896	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe	88
PID 2896 wrote to memory of 760	2896	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe	88
PID 2896 wrote to memory of 760	2896	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe	88
PID 2896 wrote to memory of 1564	2896	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe	90
PID 2896 wrote to memory of 1564	2896	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe	90
PID 2896 wrote to memory of 1564	2896	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe	90
PID 2896 wrote to memory of 4264	2896	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe	92
PID 2896 wrote to memory of 4264	2896	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe	92
PID 2896 wrote to memory of 4264	2896	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe	92
PID 2896 wrote to memory of 3496	2896	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe	95
PID 2896 wrote to memory of 3496	2896	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe	95
PID 2896 wrote to memory of 3496	2896	JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe	95
PID 2436 wrote to memory of 1788	2436	dwkwoikx.exe	101
PID 2436 wrote to memory of 1788	2436	dwkwoikx.exe	101
PID 2436 wrote to memory of 1788	2436	dwkwoikx.exe	101
PID 2436 wrote to memory of 1788	2436	dwkwoikx.exe	101
PID 2436 wrote to memory of 1788	2436	dwkwoikx.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zokgrony\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:840
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dwkwoikx.exe" C:\Windows\SysWOW64\zokgrony\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:404
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zokgrony binPath= "C:\Windows\SysWOW64\zokgrony\dwkwoikx.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zokgrony "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zokgrony
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4264
- 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:3496
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2896 -s 1040
  2⤵
  - Program crash
  PID:2400

C:\Windows\SysWOW64\zokgrony\dwkwoikx.exe
C:\Windows\SysWOW64\zokgrony\dwkwoikx.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_852603995775096c3faa3134eb1fa8ed.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2436
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1788
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 512
  2⤵
  - Program crash
  PID:3656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2896 -ip 2896
1⤵
PID:808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2436 -ip 2436
1⤵
PID:4648

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\dwkwoikx.exe

Filesize
14.4MB

MD5
984eab0451c614ac5a942009b9792485

SHA1
453ba735a2491d4d1973ecfa984d65bdabafffce

SHA256
8647231f1270d6fe4b8e497d9c239365be9b0546518b1e69595e76d465956f67

SHA512
a3732cea242e22b139dee5b316e3b4bde0d6070ce2a305533f70bde11544975f4fbc2906deb0ad6633954f7922a1a4dc47cfc8c7f4829941cbff8b87a76d9eb0

Download Submit
memory/1788-10-0x0000000000CC0000-0x0000000000CD5000-memory.dmp

Filesize
84KB

Download
memory/1788-12-0x0000000000CC0000-0x0000000000CD5000-memory.dmp

Filesize
84KB

Download
memory/1788-13-0x0000000000CC0000-0x0000000000CD5000-memory.dmp

Filesize
84KB

Download
memory/2436-14-0x0000000000400000-0x0000000002F05000-memory.dmp

Filesize
43.0MB

Download
memory/2896-0-0x0000000002FE0000-0x0000000002FED000-memory.dmp

Filesize
52KB

Download
memory/2896-1-0x0000000002FF0000-0x0000000003003000-memory.dmp

Filesize
76KB

Download
memory/2896-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2896-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2896-8-0x0000000002FF0000-0x0000000003003000-memory.dmp

Filesize
76KB

Download
memory/2896-7-0x0000000002FE0000-0x0000000002FED000-memory.dmp

Filesize
52KB

Download
memory/2896-6-0x0000000000400000-0x0000000002F05000-memory.dmp

Filesize
43.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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