tofsee | 4dc9780c65fae9d38b25e13f2c651e92d442e7a466c55bc75dd91310166ee74c

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 19:05

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe
Size

10.0MB
MD5

7431384f496c4d7218065e3f191b1362
SHA1

52e1475f54f597396d82ce02032422fb80c66d7c
SHA256

4dc9780c65fae9d38b25e13f2c651e92d442e7a466c55bc75dd91310166ee74c
SHA512

a9f66a8e286efd7bafdb2c3b3e6194bf741efa218ea80a634761a9492d35dad121088db7102be806638252ca5791bd8a33568a15a4f3595a3433c662ed704209
SSDEEP

49152:bkHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHn:

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\lerrpoef = "0"	svchost.exe

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
2840	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\lerrpoef\ImagePath = "C:\\Windows\\SysWOW64\\lerrpoef\\gznzrlna.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2912	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2844	gznzrlna.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2844 set thread context of 2912	2844	gznzrlna.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
1148	sc.exe
2304	sc.exe
2812	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

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7431384f496c4d7218065e3f191b1362.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gznzrlna.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 2144	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	30
PID 2408 wrote to memory of 2144	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	30
PID 2408 wrote to memory of 2144	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	30
PID 2408 wrote to memory of 2144	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	30
PID 2408 wrote to memory of 2416	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	32
PID 2408 wrote to memory of 2416	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	32
PID 2408 wrote to memory of 2416	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	32
PID 2408 wrote to memory of 2416	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	32
PID 2408 wrote to memory of 1148	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	34
PID 2408 wrote to memory of 1148	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	34
PID 2408 wrote to memory of 1148	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	34
PID 2408 wrote to memory of 1148	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	34
PID 2408 wrote to memory of 2304	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	36
PID 2408 wrote to memory of 2304	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	36
PID 2408 wrote to memory of 2304	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	36
PID 2408 wrote to memory of 2304	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	36
PID 2408 wrote to memory of 2812	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	38
PID 2408 wrote to memory of 2812	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	38
PID 2408 wrote to memory of 2812	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	38
PID 2408 wrote to memory of 2812	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	38
PID 2408 wrote to memory of 2840	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	41
PID 2408 wrote to memory of 2840	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	41
PID 2408 wrote to memory of 2840	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	41
PID 2408 wrote to memory of 2840	2408	JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe	41
PID 2844 wrote to memory of 2912	2844	gznzrlna.exe	43
PID 2844 wrote to memory of 2912	2844	gznzrlna.exe	43
PID 2844 wrote to memory of 2912	2844	gznzrlna.exe	43
PID 2844 wrote to memory of 2912	2844	gznzrlna.exe	43
PID 2844 wrote to memory of 2912	2844	gznzrlna.exe	43
PID 2844 wrote to memory of 2912	2844	gznzrlna.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lerrpoef\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2144
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gznzrlna.exe" C:\Windows\SysWOW64\lerrpoef\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2416
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lerrpoef binPath= "C:\Windows\SysWOW64\lerrpoef\gznzrlna.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1148
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lerrpoef "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2304
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lerrpoef
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- 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:2840

C:\Windows\SysWOW64\lerrpoef\gznzrlna.exe
C:\Windows\SysWOW64\lerrpoef\gznzrlna.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7431384f496c4d7218065e3f191b1362.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2844
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2912

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
12.2MB

MD5
9fb873513759918345b380e3601e0bf1

SHA1
b040e37c8e4191c3dcca0c62b726929037205b42

SHA256
cfcd2582a36f0f74e009eb5ebec31dbea893561a98557fb9ab8a823d51deffa9

SHA512
b02777eea66f378b43a1574a6aa6e6fe3ba3905f8e291536f67e63d05ff928d085523cc37018dac985632e34e148644f911d2cc3fea970f8a5d82041d7e33224

Download Submit
memory/2408-8-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/2408-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2408-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2408-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2408-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2408-1-0x0000000000900000-0x0000000000A00000-memory.dmp

Filesize
1024KB

Download
memory/2844-16-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/2912-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2912-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-18-0x0000000000080000-0x0000000000095000-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