tofsee | cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37

General

Target

JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe
Size

296KB
MD5

142a7605680f58824eeb973ced7547b6
SHA1

2512decd1bdf871d20970b46d73ccd2b894ac6fa
SHA256

cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37
SHA512

80447b00d84881c4cf5240e1f7682a77c1e464dffd7f45f629935e2d0fd297f8c9634669785a5350f60d8ec8ad46c29b9ca5a1a7675eb5cdf6ba9376bb2aebed
SSDEEP

6144:1EQM+a/agwAS8XfaSXuZet0yy8TUoG9FPxfdTV:1lMh/agdS8vaSXuZet0yy8wzPxfT

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
1936	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\rhatubgp\ImagePath = "C:\\Windows\\SysWOW64\\rhatubgp\\nsrpfluj.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe

Deletes itself 1 IoCs

pid	Process
2780	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3524	nsrpfluj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3524 set thread context of 2780	3524	nsrpfluj.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3252	sc.exe
2224	sc.exe
3300	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
548	1876	WerFault.exe	82
4436	3524	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	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nsrpfluj.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1876 wrote to memory of 3100	1876	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe	83
PID 1876 wrote to memory of 3100	1876	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe	83
PID 1876 wrote to memory of 3100	1876	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe	83
PID 1876 wrote to memory of 1540	1876	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe	86
PID 1876 wrote to memory of 1540	1876	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe	86
PID 1876 wrote to memory of 1540	1876	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe	86
PID 1876 wrote to memory of 3252	1876	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe	88
PID 1876 wrote to memory of 3252	1876	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe	88
PID 1876 wrote to memory of 3252	1876	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe	88
PID 1876 wrote to memory of 2224	1876	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe	90
PID 1876 wrote to memory of 2224	1876	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe	90
PID 1876 wrote to memory of 2224	1876	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe	90
PID 1876 wrote to memory of 3300	1876	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe	92
PID 1876 wrote to memory of 3300	1876	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe	92
PID 1876 wrote to memory of 3300	1876	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe	92
PID 1876 wrote to memory of 1936	1876	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe	95
PID 1876 wrote to memory of 1936	1876	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe	95
PID 1876 wrote to memory of 1936	1876	JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe	95
PID 3524 wrote to memory of 2780	3524	nsrpfluj.exe	101
PID 3524 wrote to memory of 2780	3524	nsrpfluj.exe	101
PID 3524 wrote to memory of 2780	3524	nsrpfluj.exe	101
PID 3524 wrote to memory of 2780	3524	nsrpfluj.exe	101
PID 3524 wrote to memory of 2780	3524	nsrpfluj.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rhatubgp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3100
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nsrpfluj.exe" C:\Windows\SysWOW64\rhatubgp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1540
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rhatubgp binPath= "C:\Windows\SysWOW64\rhatubgp\nsrpfluj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3252
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rhatubgp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2224
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rhatubgp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3300
- 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:1936
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1876 -s 1028
  2⤵
  - Program crash
  PID:548

C:\Windows\SysWOW64\rhatubgp\nsrpfluj.exe
C:\Windows\SysWOW64\rhatubgp\nsrpfluj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cbe2de6f93b8a38d091c13ace24a93655bc4198d3ec65a5f9de58c01c8d52f37.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3524
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3524 -s 512
  2⤵
  - Program crash
  PID:4436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1876 -ip 1876
1⤵
PID:4500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3524 -ip 3524
1⤵
PID:3912

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\nsrpfluj.exe

Filesize
10.7MB

MD5
04c55227fdfcd4def94bc60ae80d807a

SHA1
85e0864fc7c76b28c2786d1646e6c5ac569ae0b0

SHA256
83bfc978cc22c0ccdad1aac045a8796bdc7665e21f762cb7205dc4af7904bc74

SHA512
d9e40dd56dc1d08d02779113fe035c2b4794dea7edbae580e534cd95c3f9785ee0d9befd45cda550e9a81b3e604b5ec515a1077008e8afbf8a21b1920cf77c70

Download Submit
memory/1876-1-0x0000000001D10000-0x0000000001E10000-memory.dmp

Filesize
1024KB

Download
memory/1876-2-0x0000000001CD0000-0x0000000001CE3000-memory.dmp

Filesize
76KB

Download
memory/1876-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1876-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1876-8-0x0000000001CD0000-0x0000000001CE3000-memory.dmp

Filesize
76KB

Download
memory/1876-7-0x0000000000400000-0x0000000001C00000-memory.dmp

Filesize
24.0MB

Download
memory/2780-11-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/2780-13-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/2780-14-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/3524-15-0x0000000000400000-0x0000000001C00000-memory.dmp

Filesize
24.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads