tofsee | 09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c

General

Target

JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe
Size

355KB
MD5

57cd9fbf026f6c5277a21f925ea52737
SHA1

093857eba7ee258cdce50ae072fe363b27defad2
SHA256

09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c
SHA512

73e0bd125ca54972c1834c04eca952dcec9b3b780cdd08ee98f2ee600cfec470eb01ea4a5e0e8d9bea78988c4b225f118e39c4eabd079f23332cb502e41b8b29
SSDEEP

6144:j4EuKO2UPH0UdX3cnULul9oL1GJyR5Yw2gQSyb8KsNoeNS:j3dUPH3Z3cnULI9oBGJyR5wgjybsZN

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
2796	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\obozhkvi\ImagePath = "C:\\Windows\\SysWOW64\\obozhkvi\\qgggvmsk.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_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe

Deletes itself 1 IoCs

pid	Process
1080	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1844	qgggvmsk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1844 set thread context of 1080	1844	qgggvmsk.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3676	sc.exe
3996	sc.exe
3940	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
2584	5108	WerFault.exe	82
4612	1844	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.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	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	qgggvmsk.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5108 wrote to memory of 4344	5108	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	83
PID 5108 wrote to memory of 4344	5108	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	83
PID 5108 wrote to memory of 4344	5108	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	83
PID 5108 wrote to memory of 2376	5108	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	85
PID 5108 wrote to memory of 2376	5108	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	85
PID 5108 wrote to memory of 2376	5108	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	85
PID 5108 wrote to memory of 3676	5108	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	87
PID 5108 wrote to memory of 3676	5108	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	87
PID 5108 wrote to memory of 3676	5108	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	87
PID 5108 wrote to memory of 3996	5108	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	90
PID 5108 wrote to memory of 3996	5108	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	90
PID 5108 wrote to memory of 3996	5108	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	90
PID 5108 wrote to memory of 3940	5108	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	92
PID 5108 wrote to memory of 3940	5108	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	92
PID 5108 wrote to memory of 3940	5108	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	92
PID 5108 wrote to memory of 2796	5108	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	95
PID 5108 wrote to memory of 2796	5108	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	95
PID 5108 wrote to memory of 2796	5108	JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe	95
PID 1844 wrote to memory of 1080	1844	qgggvmsk.exe	101
PID 1844 wrote to memory of 1080	1844	qgggvmsk.exe	101
PID 1844 wrote to memory of 1080	1844	qgggvmsk.exe	101
PID 1844 wrote to memory of 1080	1844	qgggvmsk.exe	101
PID 1844 wrote to memory of 1080	1844	qgggvmsk.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\obozhkvi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4344
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qgggvmsk.exe" C:\Windows\SysWOW64\obozhkvi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2376
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create obozhkvi binPath= "C:\Windows\SysWOW64\obozhkvi\qgggvmsk.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3676
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description obozhkvi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3996
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start obozhkvi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3940
- 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:2796
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5108 -s 1032
  2⤵
  - Program crash
  PID:2584

C:\Windows\SysWOW64\obozhkvi\qgggvmsk.exe
C:\Windows\SysWOW64\obozhkvi\qgggvmsk.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_09a5d222f5fe09dc681c692b5b65fe9f6a19237e16def051f820fd2f1855225c.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1844
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1080
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1844 -s 520
  2⤵
  - Program crash
  PID:4612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 5108 -ip 5108
1⤵
PID:540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1844 -ip 1844
1⤵
PID:4540

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\qgggvmsk.exe

Filesize
11.5MB

MD5
72049f3e66aa7c42121e1e3aadcb20b2

SHA1
035df5604b69b30fac28c21ad108506f7ce88513

SHA256
0d6de571fd5402d4238d5bc046f4bfc4fbabce9b2c7acb32645cc69032819973

SHA512
15570e5babd41c9dbb477ff9c6e4931ec9a20bae6bcb625d94330eb5eb37847deeb78e8073826cc5ca0d90a822c48964784e01360f4be2a531811cdfbc1b9d99

Download Submit
memory/1080-13-0x0000000000150000-0x0000000000165000-memory.dmp

Filesize
84KB

Download
memory/1080-11-0x0000000000150000-0x0000000000165000-memory.dmp

Filesize
84KB

Download
memory/1080-15-0x0000000000150000-0x0000000000165000-memory.dmp

Filesize
84KB

Download
memory/1844-14-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download
memory/1844-16-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download
memory/5108-1-0x00000000016E0000-0x00000000017E0000-memory.dmp

Filesize
1024KB

Download
memory/5108-2-0x0000000003410000-0x0000000003423000-memory.dmp

Filesize
76KB

Download
memory/5108-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5108-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5108-9-0x0000000003410000-0x0000000003423000-memory.dmp

Filesize
76KB

Download
memory/5108-8-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads