tofsee | fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c

General

Target

JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe
Size

187KB
MD5

cdae7e032a52e1ee6323c524aed411ce
SHA1

877c52f37cda79f1bf610e947bafffc1227071a5
SHA256

fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c
SHA512

f45bdf62e69f3c1166ed17dd562c5aa53133b9131fce81ac0e9ad4b8260a5b7a41499aa97a6ffa4a0c10927fd28a7cd81b20a260956429b9684fd5d99e2a1fd7
SSDEEP

3072:t7M4KtEHAz7pbdM9aqEI0ZVw1yE/m9yq3uGkB0PXc0GqX9Rz4mFuPbvK:Y8Az1bdM970VwwE+9yOeGc+9Rs+uTv

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
3856	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\goaqkhmt\ImagePath = "C:\\Windows\\SysWOW64\\goaqkhmt\\kuzmtonc.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_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe

Deletes itself 1 IoCs

pid	Process
4868	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1080	kuzmtonc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1080 set thread context of 4868	1080	kuzmtonc.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
2128	sc.exe
704	sc.exe
2380	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
2340	3700	WerFault.exe	81
640	1080	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kuzmtonc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3700 wrote to memory of 4892	3700	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe	82
PID 3700 wrote to memory of 4892	3700	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe	82
PID 3700 wrote to memory of 4892	3700	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe	82
PID 3700 wrote to memory of 1624	3700	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe	84
PID 3700 wrote to memory of 1624	3700	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe	84
PID 3700 wrote to memory of 1624	3700	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe	84
PID 3700 wrote to memory of 2128	3700	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe	86
PID 3700 wrote to memory of 2128	3700	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe	86
PID 3700 wrote to memory of 2128	3700	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe	86
PID 3700 wrote to memory of 704	3700	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe	88
PID 3700 wrote to memory of 704	3700	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe	88
PID 3700 wrote to memory of 704	3700	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe	88
PID 3700 wrote to memory of 2380	3700	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe	90
PID 3700 wrote to memory of 2380	3700	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe	90
PID 3700 wrote to memory of 2380	3700	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe	90
PID 3700 wrote to memory of 3856	3700	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe	93
PID 3700 wrote to memory of 3856	3700	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe	93
PID 3700 wrote to memory of 3856	3700	JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe	93
PID 1080 wrote to memory of 4868	1080	kuzmtonc.exe	97
PID 1080 wrote to memory of 4868	1080	kuzmtonc.exe	97
PID 1080 wrote to memory of 4868	1080	kuzmtonc.exe	97
PID 1080 wrote to memory of 4868	1080	kuzmtonc.exe	97
PID 1080 wrote to memory of 4868	1080	kuzmtonc.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3700
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\goaqkhmt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4892
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kuzmtonc.exe" C:\Windows\SysWOW64\goaqkhmt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create goaqkhmt binPath= "C:\Windows\SysWOW64\goaqkhmt\kuzmtonc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2128
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description goaqkhmt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start goaqkhmt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2380
- 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:3856
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3700 -s 1036
  2⤵
  - Program crash
  PID:2340

C:\Windows\SysWOW64\goaqkhmt\kuzmtonc.exe
C:\Windows\SysWOW64\goaqkhmt\kuzmtonc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe268758e415f3dc3e79f01951b6bcb1e057329c0a87f592b03b35db5481c87c.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1080
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1080 -s 524
  2⤵
  - Program crash
  PID:640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3700 -ip 3700
1⤵
PID:452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1080 -ip 1080
1⤵
PID:5024

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\kuzmtonc.exe

Filesize
10.0MB

MD5
820970552219af1aa991364787598727

SHA1
323198ac758bb344d566f398798cd8adfbab8985

SHA256
5daf41ac42f4c7bb2fbed4dddff42a7849afe671ed877a6951ac1c9c2a2287c4

SHA512
c8cb5bad6b7c5139796f4ef2b38e86acdd4537feca880a5fb8da673227b3a6ebe4abe299939b9294ee90c55ef2ae98ccc0560a4c485aa22c0bdd903b4a549143

Download Submit
memory/1080-6-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/1080-17-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/1080-7-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3700-12-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3700-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3700-0-0x00000000005A0000-0x00000000005AD000-memory.dmp

Filesize
52KB

Download
memory/3700-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3700-1-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/3700-14-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/3700-13-0x00000000005A0000-0x00000000005AD000-memory.dmp

Filesize
52KB

Download
memory/4868-8-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/4868-11-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/4868-18-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/4868-19-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/4868-20-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads