tofsee | 44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9

General

Target

JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe
Size

237KB
MD5

d3a038ef3f856723ca4e86d1e80610c4
SHA1

aecf8b2eddcef044984ebaa14370e00dddc841bf
SHA256

44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9
SHA512

535bf635e885ee06080b9e7b298a390562f4e66a04ddaa9f65773ebc236787f9692993afd9ae12ed5ca0279831efeb56bc9fc1c74ae14b6bbf3516a2b1200fbe
SSDEEP

6144:8onO1WHesBjBiTjBRqZA6YWEZN7ERGc0J7YPFHFb6c:8m5+mjBi2ZA6YW01ERGc09Ybm

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
456	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\xelsdnjm\ImagePath = "C:\\Windows\\SysWOW64\\xelsdnjm\\vlgsmycu.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_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe

Deletes itself 1 IoCs

pid	Process
3116	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2996	vlgsmycu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2996 set thread context of 3116	2996	vlgsmycu.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
4584	sc.exe
2744	sc.exe
4952	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 6 IoCs

pid	pid_target	Process	procid_target
3064	1520	WerFault.exe	82
3768	1520	WerFault.exe	82
4760	1520	WerFault.exe	82
3036	2996	WerFault.exe	94
4256	2996	WerFault.exe	94
4176	2996	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	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vlgsmycu.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 3600	1520	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe	83
PID 1520 wrote to memory of 3600	1520	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe	83
PID 1520 wrote to memory of 3600	1520	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe	83
PID 1520 wrote to memory of 1168	1520	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe	85
PID 1520 wrote to memory of 1168	1520	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe	85
PID 1520 wrote to memory of 1168	1520	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe	85
PID 1520 wrote to memory of 2744	1520	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe	87
PID 1520 wrote to memory of 2744	1520	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe	87
PID 1520 wrote to memory of 2744	1520	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe	87
PID 1520 wrote to memory of 4952	1520	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe	89
PID 1520 wrote to memory of 4952	1520	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe	89
PID 1520 wrote to memory of 4952	1520	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe	89
PID 1520 wrote to memory of 4584	1520	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe	92
PID 1520 wrote to memory of 4584	1520	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe	92
PID 1520 wrote to memory of 4584	1520	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe	92
PID 1520 wrote to memory of 456	1520	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe	95
PID 1520 wrote to memory of 456	1520	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe	95
PID 1520 wrote to memory of 456	1520	JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe	95
PID 2996 wrote to memory of 3116	2996	vlgsmycu.exe	105
PID 2996 wrote to memory of 3116	2996	vlgsmycu.exe	105
PID 2996 wrote to memory of 3116	2996	vlgsmycu.exe	105
PID 2996 wrote to memory of 3116	2996	vlgsmycu.exe	105
PID 2996 wrote to memory of 3116	2996	vlgsmycu.exe	105

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xelsdnjm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3600
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vlgsmycu.exe" C:\Windows\SysWOW64\xelsdnjm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1168
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xelsdnjm binPath= "C:\Windows\SysWOW64\xelsdnjm\vlgsmycu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xelsdnjm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4952
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xelsdnjm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4584
- 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:456
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1520 -s 1256
  2⤵
  - Program crash
  PID:3064
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1520 -s 1244
  2⤵
  - Program crash
  PID:3768
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1520 -s 796
  2⤵
  - Program crash
  PID:4760

C:\Windows\SysWOW64\xelsdnjm\vlgsmycu.exe
C:\Windows\SysWOW64\xelsdnjm\vlgsmycu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_44d2bb1b945b6ae43a4bea7eb6d06bed6b9008438170e3298eb034b49a9169a9.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2996
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 536
  2⤵
  - Program crash
  PID:3036
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 552
  2⤵
  - Program crash
  PID:4256
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 520
  2⤵
  - Program crash
  PID:4176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1520 -ip 1520
1⤵
PID:1152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1520 -ip 1520
1⤵
PID:2308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1520 -ip 1520
1⤵
PID:1456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2996 -ip 2996
1⤵
PID:2252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2996 -ip 2996
1⤵
PID:4440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2996 -ip 2996
1⤵
PID:1732

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\vlgsmycu.exe

Filesize
10.2MB

MD5
1a061af62ad4cb343cccf6059d69ddbe

SHA1
860ad7761751c0181aecbeecb8fd8c84dce3ad5f

SHA256
1660a60db5ebe06a3ccc5f699e843519fc3e9d1c3925839c7e9b25821fa76f89

SHA512
1e548163df47986e1abb3193a39603d743a52b2309ded607ca805b8539b741d2f682ea670e0bd05e06632b1fddc9309ad86d72c3acf7f4d4276000d8dae23d2a

Download Submit
memory/1520-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/1520-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1520-2-0x00000000009D0000-0x00000000009E3000-memory.dmp

Filesize
76KB

Download
memory/1520-9-0x00000000009D0000-0x00000000009E3000-memory.dmp

Filesize
76KB

Download
memory/1520-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1520-1-0x0000000000AB0000-0x0000000000BB0000-memory.dmp

Filesize
1024KB

Download
memory/2996-12-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2996-11-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2996-17-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/3116-15-0x0000000000860000-0x0000000000875000-memory.dmp

Filesize
84KB

Download
memory/3116-13-0x0000000000860000-0x0000000000875000-memory.dmp

Filesize
84KB

Download
memory/3116-16-0x0000000000860000-0x0000000000875000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads