tofsee | 67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5

General

Target

JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe
Size

288KB
MD5

fa140d14a8896282316dc78dbfcece18
SHA1

65faf3fdf5ced2d784ed8d0453ac6468052b0f86
SHA256

67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5
SHA512

a32f7cb80a0219defee861b6c010351c9a590dde67cb7a4db99990013510dbf134f974c1671f8d6e8ec7bc31fd3fdc24eb09e836465b6d39faa51aad6430b65b
SSDEEP

6144:ffO5YfmEAp6M/CPyIkmZ+uYuvEeZS5df:3O5Yf2fCPyIhZ+uUWSf

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
1212	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\dyblgrst\ImagePath = "C:\\Windows\\SysWOW64\\dyblgrst\\piwiauwj.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe

Deletes itself 1 IoCs

pid	Process
4572	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1928	piwiauwj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1928 set thread context of 4572	1928	piwiauwj.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1964	sc.exe
4456	sc.exe
4928	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
4812	4368	WerFault.exe	81
4704	1928	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.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	piwiauwj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4368 wrote to memory of 3000	4368	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	82
PID 4368 wrote to memory of 3000	4368	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	82
PID 4368 wrote to memory of 3000	4368	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	82
PID 4368 wrote to memory of 3376	4368	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	84
PID 4368 wrote to memory of 3376	4368	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	84
PID 4368 wrote to memory of 3376	4368	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	84
PID 4368 wrote to memory of 1964	4368	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	86
PID 4368 wrote to memory of 1964	4368	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	86
PID 4368 wrote to memory of 1964	4368	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	86
PID 4368 wrote to memory of 4456	4368	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	88
PID 4368 wrote to memory of 4456	4368	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	88
PID 4368 wrote to memory of 4456	4368	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	88
PID 4368 wrote to memory of 4928	4368	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	90
PID 4368 wrote to memory of 4928	4368	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	90
PID 4368 wrote to memory of 4928	4368	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	90
PID 4368 wrote to memory of 1212	4368	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	93
PID 4368 wrote to memory of 1212	4368	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	93
PID 4368 wrote to memory of 1212	4368	JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe	93
PID 1928 wrote to memory of 4572	1928	piwiauwj.exe	98
PID 1928 wrote to memory of 4572	1928	piwiauwj.exe	98
PID 1928 wrote to memory of 4572	1928	piwiauwj.exe	98
PID 1928 wrote to memory of 4572	1928	piwiauwj.exe	98
PID 1928 wrote to memory of 4572	1928	piwiauwj.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4368
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dyblgrst\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3000
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\piwiauwj.exe" C:\Windows\SysWOW64\dyblgrst\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3376
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dyblgrst binPath= "C:\Windows\SysWOW64\dyblgrst\piwiauwj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dyblgrst "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4456
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dyblgrst
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4928
- 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:1212
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4368 -s 1336
  2⤵
  - Program crash
  PID:4812

C:\Windows\SysWOW64\dyblgrst\piwiauwj.exe
C:\Windows\SysWOW64\dyblgrst\piwiauwj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_67765735937e35b13119a8be553a6d9d29b742b19d040c29fca43766f1b651c5.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1928
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4572
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1928 -s 532
  2⤵
  - Program crash
  PID:4704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4368 -ip 4368
1⤵
PID:2732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1928 -ip 1928
1⤵
PID:3552

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\piwiauwj.exe

Filesize
14.8MB

MD5
3c0a6970c56227f219e1e0dac17d369b

SHA1
d1d413004e21282eb8b8c6c6d938ca9752c2b717

SHA256
9d7b8f284e5c9d6800054c0ca0caf96983c74e3eea4cb5772a7732c0c5c6152e

SHA512
efc3d26194d3124d3da3c5b603ca0d396cd971141d5a55dc9febbb995d6e1be2a1b73da562adac30db8f1dcb2e2e497c6d1af56663b36a29c18312f21859c6e8

Download Submit
memory/1928-15-0x0000000000400000-0x0000000002B3F000-memory.dmp

Filesize
39.2MB

Download
memory/4368-1-0x0000000002E30000-0x0000000002F30000-memory.dmp

Filesize
1024KB

Download
memory/4368-2-0x0000000002DD0000-0x0000000002DE3000-memory.dmp

Filesize
76KB

Download
memory/4368-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4368-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4368-8-0x0000000002DD0000-0x0000000002DE3000-memory.dmp

Filesize
76KB

Download
memory/4368-7-0x0000000000400000-0x0000000002B3F000-memory.dmp

Filesize
39.2MB

Download
memory/4572-11-0x0000000001030000-0x0000000001045000-memory.dmp

Filesize
84KB

Download
memory/4572-13-0x0000000001030000-0x0000000001045000-memory.dmp

Filesize
84KB

Download
memory/4572-14-0x0000000001030000-0x0000000001045000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads