tofsee | 6be3100cc2f64e20f89e96bd1b0a487c1fca8afb8c3b92e51d3799517b7684bc

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
06-01-2025 19:58

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe
Size

11.1MB
MD5

378a35c7ac31c7acf84ea568f6ef9318
SHA1

8fe14325285e8cc111ad947efe3d1fb4df17d575
SHA256

6be3100cc2f64e20f89e96bd1b0a487c1fca8afb8c3b92e51d3799517b7684bc
SHA512

e6f0671c60d9426140b383a5a7eb3b288b51458697139d169b0b590409b6537417fb99895ca8113eec6731e02d8404a212735619b780e9c518fa65ae49fd252f
SSDEEP

6144:HMdOABJjP3ty21A5M9FW8c3np3XTm9ntiAA:HMEEJD3t3A5M9FfgZXTm9nE/

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

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\kjxlgvly = "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
2824	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\kjxlgvly\ImagePath = "C:\\Windows\\SysWOW64\\kjxlgvly\\bqdzlkdp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2728	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2228	bqdzlkdp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2228 set thread context of 2728	2228	bqdzlkdp.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2556	sc.exe
2820	sc.exe
2796	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	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	bqdzlkdp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.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 108 wrote to memory of 2548	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	29
PID 108 wrote to memory of 2548	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	29
PID 108 wrote to memory of 2548	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	29
PID 108 wrote to memory of 2548	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	29
PID 108 wrote to memory of 2440	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	31
PID 108 wrote to memory of 2440	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	31
PID 108 wrote to memory of 2440	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	31
PID 108 wrote to memory of 2440	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	31
PID 108 wrote to memory of 2556	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	33
PID 108 wrote to memory of 2556	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	33
PID 108 wrote to memory of 2556	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	33
PID 108 wrote to memory of 2556	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	33
PID 108 wrote to memory of 2820	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	35
PID 108 wrote to memory of 2820	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	35
PID 108 wrote to memory of 2820	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	35
PID 108 wrote to memory of 2820	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	35
PID 108 wrote to memory of 2796	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	37
PID 108 wrote to memory of 2796	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	37
PID 108 wrote to memory of 2796	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	37
PID 108 wrote to memory of 2796	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	37
PID 108 wrote to memory of 2824	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	39
PID 108 wrote to memory of 2824	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	39
PID 108 wrote to memory of 2824	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	39
PID 108 wrote to memory of 2824	108	JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe	39
PID 2228 wrote to memory of 2728	2228	bqdzlkdp.exe	42
PID 2228 wrote to memory of 2728	2228	bqdzlkdp.exe	42
PID 2228 wrote to memory of 2728	2228	bqdzlkdp.exe	42
PID 2228 wrote to memory of 2728	2228	bqdzlkdp.exe	42
PID 2228 wrote to memory of 2728	2228	bqdzlkdp.exe	42
PID 2228 wrote to memory of 2728	2228	bqdzlkdp.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kjxlgvly\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2548
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bqdzlkdp.exe" C:\Windows\SysWOW64\kjxlgvly\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2440
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kjxlgvly binPath= "C:\Windows\SysWOW64\kjxlgvly\bqdzlkdp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2556
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kjxlgvly "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kjxlgvly
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- 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:2824

C:\Windows\SysWOW64\kjxlgvly\bqdzlkdp.exe
C:\Windows\SysWOW64\kjxlgvly\bqdzlkdp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_378a35c7ac31c7acf84ea568f6ef9318.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2228
- 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:2728

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\bqdzlkdp.exe

Filesize
12.9MB

MD5
d0ef0079085eea0945d6bafe236fc613

SHA1
54aca2e4e157d6f77352226931e88a9e1e32665d

SHA256
0c9f1615cd5027ff49fb19d413e56497872273e28330fbb7d8565954bfec8236

SHA512
df57725cd5d72e29577bd24169e78fe4b0f9fc6b69a965b8943367f12c0af35c8345e81dad62c04293371388a986db9e722074db45353ea5a1f200af2e21c374

Download Submit
memory/108-2-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/108-3-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/108-6-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2228-14-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2728-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2728-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2728-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2728-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2728-16-0x0000000000080000-0x0000000000095000-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