tofsee | 497cea8cac5265aef404f4eac2ba589787247bb04f1178fc36624821193fda93

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 01:35

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General

Target

JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe
Size

12.1MB
MD5

b748e066d0a89f22c611ce3eab03af43
SHA1

2ec3cb32f7b3c3e5ba900f84f5782fd4922bdb93
SHA256

497cea8cac5265aef404f4eac2ba589787247bb04f1178fc36624821193fda93
SHA512

ca911c42b594b39ae3b2d0fed415b875ea427f39b862092419fe114375eb649c4677c17e2f6646158a7268977c459abf994254929aaf756b7ae46d01bb63ec22
SSDEEP

49152:P1m333333333333333333333333333333333333333333333333333333333333H:

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\cerblvqr = "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
3004	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\cerblvqr\ImagePath = "C:\\Windows\\SysWOW64\\cerblvqr\\prlawsof.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2676	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2772	prlawsof.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2772 set thread context of 2676	2772	prlawsof.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2476	sc.exe
2760	sc.exe
2900	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	prlawsof.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.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	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 30 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2264	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	30
PID 2420 wrote to memory of 2264	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	30
PID 2420 wrote to memory of 2264	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	30
PID 2420 wrote to memory of 2264	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	30
PID 2420 wrote to memory of 2704	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	32
PID 2420 wrote to memory of 2704	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	32
PID 2420 wrote to memory of 2704	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	32
PID 2420 wrote to memory of 2704	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	32
PID 2420 wrote to memory of 2476	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	34
PID 2420 wrote to memory of 2476	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	34
PID 2420 wrote to memory of 2476	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	34
PID 2420 wrote to memory of 2476	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	34
PID 2420 wrote to memory of 2760	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	36
PID 2420 wrote to memory of 2760	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	36
PID 2420 wrote to memory of 2760	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	36
PID 2420 wrote to memory of 2760	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	36
PID 2420 wrote to memory of 2900	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	38
PID 2420 wrote to memory of 2900	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	38
PID 2420 wrote to memory of 2900	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	38
PID 2420 wrote to memory of 2900	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	38
PID 2420 wrote to memory of 3004	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	41
PID 2420 wrote to memory of 3004	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	41
PID 2420 wrote to memory of 3004	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	41
PID 2420 wrote to memory of 3004	2420	JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe	41
PID 2772 wrote to memory of 2676	2772	prlawsof.exe	44
PID 2772 wrote to memory of 2676	2772	prlawsof.exe	44
PID 2772 wrote to memory of 2676	2772	prlawsof.exe	44
PID 2772 wrote to memory of 2676	2772	prlawsof.exe	44
PID 2772 wrote to memory of 2676	2772	prlawsof.exe	44
PID 2772 wrote to memory of 2676	2772	prlawsof.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cerblvqr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2264
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\prlawsof.exe" C:\Windows\SysWOW64\cerblvqr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cerblvqr binPath= "C:\Windows\SysWOW64\cerblvqr\prlawsof.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2476
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cerblvqr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cerblvqr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2900
- 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:3004

C:\Windows\SysWOW64\cerblvqr\prlawsof.exe
C:\Windows\SysWOW64\cerblvqr\prlawsof.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b748e066d0a89f22c611ce3eab03af43.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- 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:2676

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

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Downloads

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

Filesize
10.3MB

MD5
45f2a38cd08721f90c5cdb3982ea19da

SHA1
f791689d7b82a03b06e79ad87f7073d942ed3486

SHA256
d44d59b11e8b4470047ce6d6a23a8975194ac8dfaca3f26ab352ce76d3713d4c

SHA512
7c1fc414ba6090270e7f43d1f06aab760960fe52c739a321eee58be07913b12313022747c432e159c66aba0c4762befb93ab6530f3c55b0e669c713c6c76e2c8

Download Submit
memory/2420-10-0x0000000001750000-0x0000000001850000-memory.dmp

Filesize
1024KB

Download
memory/2420-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2420-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2420-8-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/2420-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2420-1-0x0000000001750000-0x0000000001850000-memory.dmp

Filesize
1024KB

Download
memory/2420-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2676-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2676-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2676-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2676-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2676-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-17-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads