tofsee | ca2899571b116e1c462f0d68480865f3f694e95a9b16c45af44c28327197d593

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
06-01-2025 08:59

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe
Size

11.9MB
MD5

1a738fafd9d63b35e2235d6eda9a28f5
SHA1

fbd3dc9fc9b476f51de8ae1323b90bbc0a299437
SHA256

ca2899571b116e1c462f0d68480865f3f694e95a9b16c45af44c28327197d593
SHA512

b205d1f591831b1608f88cfd44270e3a7460fddab4bc38ba2829d8a7f52a42a10847c513a20b9757b0ca0b523ac76e75260a45f1be8d11d49cd376f479ff6125
SSDEEP

12288:MjjTPaKiQnJpVAwyCubY4ud8rf/444444444444444444444444444444444444v:ej7aK7Jpd

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\ulwtjsij = "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
2820	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\ulwtjsij\ImagePath = "C:\\Windows\\SysWOW64\\ulwtjsij\\rwvtjpyn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2844	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2900	rwvtjpyn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2900 set thread context of 2844	2900	rwvtjpyn.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2616	sc.exe
2972	sc.exe
2816	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.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	rwvtjpyn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2160 wrote to memory of 1660	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	30
PID 2160 wrote to memory of 1660	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	30
PID 2160 wrote to memory of 1660	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	30
PID 2160 wrote to memory of 1660	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	30
PID 2160 wrote to memory of 2500	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	32
PID 2160 wrote to memory of 2500	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	32
PID 2160 wrote to memory of 2500	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	32
PID 2160 wrote to memory of 2500	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	32
PID 2160 wrote to memory of 2616	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	34
PID 2160 wrote to memory of 2616	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	34
PID 2160 wrote to memory of 2616	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	34
PID 2160 wrote to memory of 2616	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	34
PID 2160 wrote to memory of 2972	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	36
PID 2160 wrote to memory of 2972	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	36
PID 2160 wrote to memory of 2972	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	36
PID 2160 wrote to memory of 2972	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	36
PID 2160 wrote to memory of 2816	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	38
PID 2160 wrote to memory of 2816	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	38
PID 2160 wrote to memory of 2816	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	38
PID 2160 wrote to memory of 2816	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	38
PID 2900 wrote to memory of 2844	2900	rwvtjpyn.exe	41
PID 2900 wrote to memory of 2844	2900	rwvtjpyn.exe	41
PID 2900 wrote to memory of 2844	2900	rwvtjpyn.exe	41
PID 2900 wrote to memory of 2844	2900	rwvtjpyn.exe	41
PID 2900 wrote to memory of 2844	2900	rwvtjpyn.exe	41
PID 2900 wrote to memory of 2844	2900	rwvtjpyn.exe	41
PID 2160 wrote to memory of 2820	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	42
PID 2160 wrote to memory of 2820	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	42
PID 2160 wrote to memory of 2820	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	42
PID 2160 wrote to memory of 2820	2160	JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2160
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ulwtjsij\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1660
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rwvtjpyn.exe" C:\Windows\SysWOW64\ulwtjsij\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2500
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ulwtjsij binPath= "C:\Windows\SysWOW64\ulwtjsij\rwvtjpyn.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2616
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ulwtjsij "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ulwtjsij
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2816
- 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:2820

C:\Windows\SysWOW64\ulwtjsij\rwvtjpyn.exe
C:\Windows\SysWOW64\ulwtjsij\rwvtjpyn.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a738fafd9d63b35e2235d6eda9a28f5.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2900
- 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:2844

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\rwvtjpyn.exe

Filesize
12.6MB

MD5
49c5a1065841e6c7dcbf3250991faf17

SHA1
b0f41bb77bb513dc6dd1e625d75b73592b655ffc

SHA256
5860430c0bf513409632c1648d08682dad43d2bc458474a40d8d4e7336143813

SHA512
16526de29137b58b0cfc2e57b949c26c54df4d6a40741255179a9401c17d694a1c60405fa68d9c86523a430aafceeb935793a8e14902afa033b91b92243833e1

Download Submit
memory/2160-16-0x0000000002EA0000-0x0000000002FA0000-memory.dmp

Filesize
1024KB

Download
memory/2160-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2160-1-0x0000000002EA0000-0x0000000002FA0000-memory.dmp

Filesize
1024KB

Download
memory/2160-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2160-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2160-15-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2160-14-0x0000000000400000-0x0000000002DAB000-memory.dmp

Filesize
41.7MB

Download
memory/2844-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2844-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2844-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2844-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2844-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2900-13-0x0000000000400000-0x0000000002DAB000-memory.dmp

Filesize
41.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads