tofsee | 0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8

General

Target

JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe
Size

335KB
MD5

d164b7e53713d904c884e9ee3df58b5a
SHA1

be320a568b20a7a5893ee4be349cb880f2522b82
SHA256

0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8
SHA512

5b7b243b55fce4b1d73058e3a8a708cbb8e18b70df52fe8823d0b62a67a23d229edbb29c0a95de2dead90a473a4b420da32b22a435267e6aa78c4ff4a12dd747
SSDEEP

6144:ShdLr+GOjR+kcLTU4EGcOqYmI+Y7S5ILF84v2:SbqjR+FfU4EGr1m87S5u+4

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
3052	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\ankovonn\ImagePath = "C:\\Windows\\SysWOW64\\ankovonn\\hdssxekb.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe

Deletes itself 1 IoCs

pid	Process
1224	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3424	hdssxekb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3424 set thread context of 1224	3424	hdssxekb.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1804	sc.exe
3500	sc.exe
700	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
2140	5032	WerFault.exe	81
948	3424	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hdssxekb.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5032 wrote to memory of 2764	5032	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	82
PID 5032 wrote to memory of 2764	5032	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	82
PID 5032 wrote to memory of 2764	5032	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	82
PID 5032 wrote to memory of 1172	5032	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	84
PID 5032 wrote to memory of 1172	5032	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	84
PID 5032 wrote to memory of 1172	5032	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	84
PID 5032 wrote to memory of 1804	5032	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	86
PID 5032 wrote to memory of 1804	5032	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	86
PID 5032 wrote to memory of 1804	5032	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	86
PID 5032 wrote to memory of 3500	5032	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	88
PID 5032 wrote to memory of 3500	5032	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	88
PID 5032 wrote to memory of 3500	5032	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	88
PID 5032 wrote to memory of 700	5032	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	90
PID 5032 wrote to memory of 700	5032	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	90
PID 5032 wrote to memory of 700	5032	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	90
PID 5032 wrote to memory of 3052	5032	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	93
PID 5032 wrote to memory of 3052	5032	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	93
PID 5032 wrote to memory of 3052	5032	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	93
PID 3424 wrote to memory of 1224	3424	hdssxekb.exe	98
PID 3424 wrote to memory of 1224	3424	hdssxekb.exe	98
PID 3424 wrote to memory of 1224	3424	hdssxekb.exe	98
PID 3424 wrote to memory of 1224	3424	hdssxekb.exe	98
PID 3424 wrote to memory of 1224	3424	hdssxekb.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5032
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ankovonn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hdssxekb.exe" C:\Windows\SysWOW64\ankovonn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1172
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ankovonn binPath= "C:\Windows\SysWOW64\ankovonn\hdssxekb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ankovonn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3500
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ankovonn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:700
- 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:3052
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5032 -s 1028
  2⤵
  - Program crash
  PID:2140

C:\Windows\SysWOW64\ankovonn\hdssxekb.exe
C:\Windows\SysWOW64\ankovonn\hdssxekb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3424
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1224
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3424 -s 512
  2⤵
  - Program crash
  PID:948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 5032 -ip 5032
1⤵
PID:32

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3424 -ip 3424
1⤵
PID:4872

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\hdssxekb.exe

Filesize
13.1MB

MD5
98546f0068148c881ae998ea9db809d5

SHA1
533609c6c498be7dbcff01b91804b70258cedfcb

SHA256
3cfce7bf6db28f8a8cc2dae9eb0962a28fa2bba0c7e48fdc25fbd2df31b2e8c0

SHA512
86456b31b2ac04c083cefbc02447870d45d1106df679a1a412bb1ed523dc75c48210ed2320370b9a1ab2fbdc501a986cbf05094c2114934d2648d4710b31798e

Download Submit
memory/1224-11-0x0000000000D60000-0x0000000000D75000-memory.dmp

Filesize
84KB

Download
memory/1224-13-0x0000000000D60000-0x0000000000D75000-memory.dmp

Filesize
84KB

Download
memory/1224-14-0x0000000000D60000-0x0000000000D75000-memory.dmp

Filesize
84KB

Download
memory/3424-15-0x0000000000400000-0x0000000002B4D000-memory.dmp

Filesize
39.3MB

Download
memory/5032-1-0x0000000002C10000-0x0000000002D10000-memory.dmp

Filesize
1024KB

Download
memory/5032-2-0x0000000004890000-0x00000000048A3000-memory.dmp

Filesize
76KB

Download
memory/5032-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5032-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5032-8-0x0000000004890000-0x00000000048A3000-memory.dmp

Filesize
76KB

Download
memory/5032-7-0x0000000000400000-0x0000000002B4D000-memory.dmp

Filesize
39.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads