tofsee | fb7c07b8e03f0d46bf01026bfca1fbf7a34697f105cec26b55cc55062b52cc1b

General

Target

JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe
Size

14.6MB
MD5

772bdbb465119d7bbfa6a13e810c3a2e
SHA1

3b447f7291920c539923a9a984250d0bcd40f2cf
SHA256

fb7c07b8e03f0d46bf01026bfca1fbf7a34697f105cec26b55cc55062b52cc1b
SHA512

a9cd2c0cfb7b887c017a28511fa72c215ef20500295ff00787166c9e1835fadc17da3e451150d52a492141525461d215ccd6fbb601068da1b20a9f2ac385bf04
SSDEEP

49152:okHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH:

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
3100	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\pobnwecg\ImagePath = "C:\\Windows\\SysWOW64\\pobnwecg\\jlfuqmiz.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_772bdbb465119d7bbfa6a13e810c3a2e.exe

Deletes itself 1 IoCs

pid	Process
4692	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2952	jlfuqmiz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2952 set thread context of 4692	2952	jlfuqmiz.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
4040	sc.exe
1028	sc.exe
2900	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
3784	2344	WerFault.exe	81
100	2952	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jlfuqmiz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2344 wrote to memory of 2540	2344	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe	83
PID 2344 wrote to memory of 2540	2344	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe	83
PID 2344 wrote to memory of 2540	2344	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe	83
PID 2344 wrote to memory of 2224	2344	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe	85
PID 2344 wrote to memory of 2224	2344	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe	85
PID 2344 wrote to memory of 2224	2344	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe	85
PID 2344 wrote to memory of 4040	2344	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe	88
PID 2344 wrote to memory of 4040	2344	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe	88
PID 2344 wrote to memory of 4040	2344	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe	88
PID 2344 wrote to memory of 1028	2344	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe	90
PID 2344 wrote to memory of 1028	2344	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe	90
PID 2344 wrote to memory of 1028	2344	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe	90
PID 2344 wrote to memory of 2900	2344	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe	92
PID 2344 wrote to memory of 2900	2344	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe	92
PID 2344 wrote to memory of 2900	2344	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe	92
PID 2344 wrote to memory of 3100	2344	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe	95
PID 2344 wrote to memory of 3100	2344	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe	95
PID 2344 wrote to memory of 3100	2344	JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe	95
PID 2952 wrote to memory of 4692	2952	jlfuqmiz.exe	101
PID 2952 wrote to memory of 4692	2952	jlfuqmiz.exe	101
PID 2952 wrote to memory of 4692	2952	jlfuqmiz.exe	101
PID 2952 wrote to memory of 4692	2952	jlfuqmiz.exe	101
PID 2952 wrote to memory of 4692	2952	jlfuqmiz.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2344
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pobnwecg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2540
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jlfuqmiz.exe" C:\Windows\SysWOW64\pobnwecg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2224
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pobnwecg binPath= "C:\Windows\SysWOW64\pobnwecg\jlfuqmiz.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4040
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pobnwecg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1028
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pobnwecg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2900
- 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:3100
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2344 -s 1196
  2⤵
  - Program crash
  PID:3784

C:\Windows\SysWOW64\pobnwecg\jlfuqmiz.exe
C:\Windows\SysWOW64\pobnwecg\jlfuqmiz.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_772bdbb465119d7bbfa6a13e810c3a2e.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2952
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4692
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2952 -s 516
  2⤵
  - Program crash
  PID:100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2344 -ip 2344
1⤵
PID:4152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2952 -ip 2952
1⤵
PID:4848

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\jlfuqmiz.exe

Filesize
12.4MB

MD5
38daa1434bb358c3b69e691deb9d39a6

SHA1
fc58d7c1108faface6a1991248d3736194b51a81

SHA256
d8054625d869d34c7eab7ce44aad5b0bb553947f45f8e8ba57f4a5df9670a74c

SHA512
ad61a18b45a2cfd59d2770cb67f571f651c51fd02b8a1d6c7d13c0cb8bfbcfd78cc18671a85e87d73febddd53e98ec8c7b56d500f8a85ebac2b80d5e42f8cb45

Download Submit
memory/2344-2-0x0000000000910000-0x0000000000923000-memory.dmp

Filesize
76KB

Download
memory/2344-1-0x00000000007F0000-0x00000000008F0000-memory.dmp

Filesize
1024KB

Download
memory/2344-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2344-8-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/2344-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2344-9-0x0000000000910000-0x0000000000923000-memory.dmp

Filesize
76KB

Download
memory/2952-11-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/2952-17-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/4692-12-0x0000000000480000-0x0000000000495000-memory.dmp

Filesize
84KB

Download
memory/4692-14-0x0000000000480000-0x0000000000495000-memory.dmp

Filesize
84KB

Download
memory/4692-15-0x0000000000480000-0x0000000000495000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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