tofsee | c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff

General

Target

JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe
Size

153KB
MD5

e66556350a01070b7cdcf02158068c09
SHA1

06f2936fd94679429f0c06e8d68afe35b7657a4d
SHA256

c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff
SHA512

4fc759451f985d12205061bf7722ac4591a4c06465eaeca80a495697cde062010384e073654396d941402f812e3319fd7b67138cab0a3af1965012d8f88f92b6
SSDEEP

3072:oFamdpelo9jsA3JEE5On95MKwYY7M40O:oFldqa/3aEjKVMM3O

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
1860	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\qbfhwwpp\ImagePath = "C:\\Windows\\SysWOW64\\qbfhwwpp\\nusdidrf.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_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe

Deletes itself 1 IoCs

pid	Process
3156	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3900	nusdidrf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3900 set thread context of 3156	3900	nusdidrf.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
1748	sc.exe
2012	sc.exe
2864	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

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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nusdidrf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 3636	2636	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	83
PID 2636 wrote to memory of 3636	2636	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	83
PID 2636 wrote to memory of 3636	2636	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	83
PID 2636 wrote to memory of 2004	2636	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	85
PID 2636 wrote to memory of 2004	2636	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	85
PID 2636 wrote to memory of 2004	2636	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	85
PID 2636 wrote to memory of 1748	2636	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	88
PID 2636 wrote to memory of 1748	2636	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	88
PID 2636 wrote to memory of 1748	2636	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	88
PID 2636 wrote to memory of 2012	2636	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	90
PID 2636 wrote to memory of 2012	2636	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	90
PID 2636 wrote to memory of 2012	2636	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	90
PID 2636 wrote to memory of 2864	2636	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	92
PID 2636 wrote to memory of 2864	2636	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	92
PID 2636 wrote to memory of 2864	2636	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	92
PID 2636 wrote to memory of 1860	2636	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	95
PID 2636 wrote to memory of 1860	2636	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	95
PID 2636 wrote to memory of 1860	2636	JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe	95
PID 3900 wrote to memory of 3156	3900	nusdidrf.exe	97
PID 3900 wrote to memory of 3156	3900	nusdidrf.exe	97
PID 3900 wrote to memory of 3156	3900	nusdidrf.exe	97
PID 3900 wrote to memory of 3156	3900	nusdidrf.exe	97
PID 3900 wrote to memory of 3156	3900	nusdidrf.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2636
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qbfhwwpp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3636
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nusdidrf.exe" C:\Windows\SysWOW64\qbfhwwpp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2004
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qbfhwwpp binPath= "C:\Windows\SysWOW64\qbfhwwpp\nusdidrf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qbfhwwpp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qbfhwwpp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- 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:1860

C:\Windows\SysWOW64\qbfhwwpp\nusdidrf.exe
C:\Windows\SysWOW64\qbfhwwpp\nusdidrf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c88e458154fadd00a3790de94f2d7e786705e683e6aa318dabcd242efcff85ff.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3900
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3156

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\nusdidrf.exe

Filesize
14.5MB

MD5
d2eed5ecbec52e638a87489b02ff1677

SHA1
2933c2f1d8af312a693de714c7cd1273184736eb

SHA256
203c80705d5ff0492664c13917477e34c079e12366b4022b704344fa573fac5d

SHA512
99e2e51734a100e5f06801e36030d407ebc6b6cc85d6b1ab2af97f90e413943566d77ab8776d86c6e60b02a3e7bb438cc6d7ac86b5cad115d647a340249646a6

Download Submit
memory/2636-9-0x0000000002200000-0x0000000002213000-memory.dmp

Filesize
76KB

Download
memory/2636-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-2-0x0000000002200000-0x0000000002213000-memory.dmp

Filesize
76KB

Download
memory/2636-8-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/2636-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-1-0x0000000000580000-0x0000000000680000-memory.dmp

Filesize
1024KB

Download
memory/3156-14-0x00000000004D0000-0x00000000004E5000-memory.dmp

Filesize
84KB

Download
memory/3156-18-0x00000000004D0000-0x00000000004E5000-memory.dmp

Filesize
84KB

Download
memory/3156-19-0x00000000004D0000-0x00000000004E5000-memory.dmp

Filesize
84KB

Download
memory/3900-12-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3900-11-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3900-13-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3900-17-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads