tofsee | 61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4

General

Target

JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe
Size

187KB
MD5

a8b1c1d06132f225e9f6bf51a34e04d6
SHA1

7cce87816f01af8dd37d3174bed6dc7d6b386114
SHA256

61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4
SHA512

2c749cfa18f9ea5fad1e42d928f53a8b131423d3b3f6811e102955fea43bcbcfa6c03cc8d440c3e2188acd4c3818665356a6bef195b633ad08a681452fb6a702
SSDEEP

3072:J7Xjs7nz7xT/bchc0+aHM7IdudDpwjvT1MHemjIGnipZa9uD6Vdyhkd:Bs7nz7xT/bc+IHuDNpST1MHrjPniwVf

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
4868	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\vmzaiarp\ImagePath = "C:\\Windows\\SysWOW64\\vmzaiarp\\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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe

Deletes itself 1 IoCs

pid	Process
248	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4204	jlfuqmiz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4204 set thread context of 248	4204	jlfuqmiz.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
476	sc.exe
3284	sc.exe
1216	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
544	4472	WerFault.exe	81
4964	4204	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	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	jlfuqmiz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4472 wrote to memory of 2644	4472	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe	82
PID 4472 wrote to memory of 2644	4472	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe	82
PID 4472 wrote to memory of 2644	4472	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe	82
PID 4472 wrote to memory of 2616	4472	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe	84
PID 4472 wrote to memory of 2616	4472	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe	84
PID 4472 wrote to memory of 2616	4472	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe	84
PID 4472 wrote to memory of 476	4472	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe	86
PID 4472 wrote to memory of 476	4472	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe	86
PID 4472 wrote to memory of 476	4472	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe	86
PID 4472 wrote to memory of 3284	4472	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe	88
PID 4472 wrote to memory of 3284	4472	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe	88
PID 4472 wrote to memory of 3284	4472	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe	88
PID 4472 wrote to memory of 1216	4472	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe	90
PID 4472 wrote to memory of 1216	4472	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe	90
PID 4472 wrote to memory of 1216	4472	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe	90
PID 4472 wrote to memory of 4868	4472	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe	93
PID 4472 wrote to memory of 4868	4472	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe	93
PID 4472 wrote to memory of 4868	4472	JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe	93
PID 4204 wrote to memory of 248	4204	jlfuqmiz.exe	97
PID 4204 wrote to memory of 248	4204	jlfuqmiz.exe	97
PID 4204 wrote to memory of 248	4204	jlfuqmiz.exe	97
PID 4204 wrote to memory of 248	4204	jlfuqmiz.exe	97
PID 4204 wrote to memory of 248	4204	jlfuqmiz.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4472
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vmzaiarp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jlfuqmiz.exe" C:\Windows\SysWOW64\vmzaiarp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2616
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vmzaiarp binPath= "C:\Windows\SysWOW64\vmzaiarp\jlfuqmiz.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:476
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vmzaiarp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3284
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vmzaiarp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1216
- 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:4868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4472 -s 1036
  2⤵
  - Program crash
  PID:544

C:\Windows\SysWOW64\vmzaiarp\jlfuqmiz.exe
C:\Windows\SysWOW64\vmzaiarp\jlfuqmiz.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_61bca9b7bb7ff8784bb4457dabe18c22a906ca2355a1866e4e2edaea8560b6c4.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4204
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:248
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4204 -s 512
  2⤵
  - Program crash
  PID:4964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4472 -ip 4472
1⤵
PID:3024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4204 -ip 4204
1⤵
PID:4612

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
12.5MB

MD5
c2b3ea9952241700206743b0120568e6

SHA1
b10bcefa1c62a5f319b91aa20c05a25ad25e42a6

SHA256
e7105149bf99f05f5d1761c1a5642dcf42e7fe1d922bf23a62900f19d72552e4

SHA512
c9f268abfbf0561f8c96cbff34257c6615181e6080f586f7ad0c4ed3909076e733bf46ca6c881f96a9f1ea264b813ee386440a6fc665595948ece5f5cafe7367

Download Submit
memory/248-9-0x0000000000B50000-0x0000000000B65000-memory.dmp

Filesize
84KB

Download
memory/248-18-0x0000000000B50000-0x0000000000B65000-memory.dmp

Filesize
84KB

Download
memory/248-17-0x0000000000B50000-0x0000000000B65000-memory.dmp

Filesize
84KB

Download
memory/4204-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4204-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4204-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4204-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4472-0-0x00000000005C0000-0x00000000005CD000-memory.dmp

Filesize
52KB

Download
memory/4472-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4472-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4472-13-0x0000000002070000-0x0000000002083000-memory.dmp

Filesize
76KB

Download
memory/4472-12-0x00000000005C0000-0x00000000005CD000-memory.dmp

Filesize
52KB

Download
memory/4472-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4472-1-0x0000000002070000-0x0000000002083000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads