tofsee | 045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9

General

Target

JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe
Size

254KB
MD5

3f97e25b571e5b39c46248482468af0b
SHA1

7292c6503bb2f0315d9bd02fa03703222e845aa6
SHA256

045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9
SHA512

66ed5364cc36688f9bb176cc0f8ff90040de30ea24a90ed159416a0353278d9252fea5bfee9e847b21e5724b4e91677602fd50b7a054c3eb45866efd0cbdbfde
SSDEEP

6144:e2HFrM+PL3nRZnvwnZFVyOIauHn4HhV24q:hM+DnbvwnZjyOvDHhM4q

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
3532	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\afcdhaxt\ImagePath = "C:\\Windows\\SysWOW64\\afcdhaxt\\vklrepji.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_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe

Deletes itself 1 IoCs

pid	Process
4060	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2308	vklrepji.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2308 set thread context of 4060	2308	vklrepji.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
4528	sc.exe
4252	sc.exe
3520	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
4044	4808	WerFault.exe	82
4464	2308	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	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vklrepji.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4808 wrote to memory of 1500	4808	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe	83
PID 4808 wrote to memory of 1500	4808	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe	83
PID 4808 wrote to memory of 1500	4808	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe	83
PID 4808 wrote to memory of 856	4808	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe	85
PID 4808 wrote to memory of 856	4808	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe	85
PID 4808 wrote to memory of 856	4808	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe	85
PID 4808 wrote to memory of 4528	4808	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe	88
PID 4808 wrote to memory of 4528	4808	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe	88
PID 4808 wrote to memory of 4528	4808	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe	88
PID 4808 wrote to memory of 4252	4808	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe	90
PID 4808 wrote to memory of 4252	4808	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe	90
PID 4808 wrote to memory of 4252	4808	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe	90
PID 4808 wrote to memory of 3520	4808	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe	92
PID 4808 wrote to memory of 3520	4808	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe	92
PID 4808 wrote to memory of 3520	4808	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe	92
PID 4808 wrote to memory of 3532	4808	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe	95
PID 4808 wrote to memory of 3532	4808	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe	95
PID 4808 wrote to memory of 3532	4808	JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe	95
PID 2308 wrote to memory of 4060	2308	vklrepji.exe	101
PID 2308 wrote to memory of 4060	2308	vklrepji.exe	101
PID 2308 wrote to memory of 4060	2308	vklrepji.exe	101
PID 2308 wrote to memory of 4060	2308	vklrepji.exe	101
PID 2308 wrote to memory of 4060	2308	vklrepji.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4808
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\afcdhaxt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1500
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vklrepji.exe" C:\Windows\SysWOW64\afcdhaxt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:856
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create afcdhaxt binPath= "C:\Windows\SysWOW64\afcdhaxt\vklrepji.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description afcdhaxt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4252
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start afcdhaxt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3520
- 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:3532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 1244
  2⤵
  - Program crash
  PID:4044

C:\Windows\SysWOW64\afcdhaxt\vklrepji.exe
C:\Windows\SysWOW64\afcdhaxt\vklrepji.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_045c130cc87e4f28d595ba4c453b22b1a5aee0880e7e470aa8376af489c999e9.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4060
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2308 -s 532
  2⤵
  - Program crash
  PID:4464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4808 -ip 4808
1⤵
PID:4404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 2308 -ip 2308
1⤵
PID:3028

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\vklrepji.exe

Filesize
14.1MB

MD5
9584845c0ac99d2db5e063289212cca1

SHA1
1264e768511d1b0527acab180968f377b11c66d6

SHA256
7e3960be6a8e65025320ba904883d276b9a59bc48cf688e992ecec4106ad028f

SHA512
7aa4990fc86f066620a2482285b8897311a6021faba12b8d98e1fa0fe842296b190ecdfb85770831bf3a569178989d967f18d2e81b27b1c8def19dcc4b31253f

Download Submit
memory/2308-15-0x0000000000400000-0x0000000001085000-memory.dmp

Filesize
12.5MB

Download
memory/4060-11-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/4060-13-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/4060-14-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/4808-2-0x0000000002CB0000-0x0000000002CC3000-memory.dmp

Filesize
76KB

Download
memory/4808-1-0x00000000011B0000-0x00000000012B0000-memory.dmp

Filesize
1024KB

Download
memory/4808-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4808-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4808-7-0x0000000000400000-0x0000000001085000-memory.dmp

Filesize
12.5MB

Download
memory/4808-8-0x0000000002CB0000-0x0000000002CC3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads