tofsee | 8aed228f049439fe51a83d022609ff6f19e6fce22e6f8b5aeee41138728a7c1f

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
08-01-2025 14:20

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General

Target

JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe
Size

14.9MB
MD5

a4408f6558a17cd4afad28613bfee94e
SHA1

dd78fe50f4ea41ca7ae709506ea278d0968ec11c
SHA256

8aed228f049439fe51a83d022609ff6f19e6fce22e6f8b5aeee41138728a7c1f
SHA512

059cf5fde2a0577b358f1fe9fe638b401d80be35296fcdabbf28e79225c01b370f6d67e20ec16b052a9eda5f260812a61b9d9e20a9c467773a5aba7fad2f3067
SSDEEP

49152:C7G0000000000000000000000000000000000000000000000000000000000007:

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\wrnjvzul = "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
2688	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\wrnjvzul\ImagePath = "C:\\Windows\\SysWOW64\\wrnjvzul\\hrwjqlkz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2172	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2788	hrwjqlkz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2788 set thread context of 2172	2788	hrwjqlkz.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2848	sc.exe
2692	sc.exe
2716	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hrwjqlkz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.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	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2824 wrote to memory of 3064	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	30
PID 2824 wrote to memory of 3064	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	30
PID 2824 wrote to memory of 3064	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	30
PID 2824 wrote to memory of 3064	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	30
PID 2824 wrote to memory of 2828	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	32
PID 2824 wrote to memory of 2828	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	32
PID 2824 wrote to memory of 2828	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	32
PID 2824 wrote to memory of 2828	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	32
PID 2824 wrote to memory of 2848	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	34
PID 2824 wrote to memory of 2848	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	34
PID 2824 wrote to memory of 2848	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	34
PID 2824 wrote to memory of 2848	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	34
PID 2824 wrote to memory of 2692	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	36
PID 2824 wrote to memory of 2692	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	36
PID 2824 wrote to memory of 2692	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	36
PID 2824 wrote to memory of 2692	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	36
PID 2824 wrote to memory of 2716	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	38
PID 2824 wrote to memory of 2716	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	38
PID 2824 wrote to memory of 2716	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	38
PID 2824 wrote to memory of 2716	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	38
PID 2824 wrote to memory of 2688	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	40
PID 2824 wrote to memory of 2688	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	40
PID 2824 wrote to memory of 2688	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	40
PID 2824 wrote to memory of 2688	2824	JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe	40
PID 2788 wrote to memory of 2172	2788	hrwjqlkz.exe	43
PID 2788 wrote to memory of 2172	2788	hrwjqlkz.exe	43
PID 2788 wrote to memory of 2172	2788	hrwjqlkz.exe	43
PID 2788 wrote to memory of 2172	2788	hrwjqlkz.exe	43
PID 2788 wrote to memory of 2172	2788	hrwjqlkz.exe	43
PID 2788 wrote to memory of 2172	2788	hrwjqlkz.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2824
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wrnjvzul\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3064
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hrwjqlkz.exe" C:\Windows\SysWOW64\wrnjvzul\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2828
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wrnjvzul binPath= "C:\Windows\SysWOW64\wrnjvzul\hrwjqlkz.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wrnjvzul "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wrnjvzul
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2716
- 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:2688

C:\Windows\SysWOW64\wrnjvzul\hrwjqlkz.exe
C:\Windows\SysWOW64\wrnjvzul\hrwjqlkz.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a4408f6558a17cd4afad28613bfee94e.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2788
- 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:2172

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\hrwjqlkz.exe

Filesize
11.5MB

MD5
b7f9258c583b646cd41c7c6faaf7d68e

SHA1
b75e44310fe27cc34a468d2de20e5b2033a3a311

SHA256
c5b78bd8abccd01cc6aca984eca79a5c900cf053dd76f9d64fd1d42a6d1c663b

SHA512
242f93d60f502af0eb7ac720058450a39982558ef06bd19f98bf0514feda049a6e34605f9315beef6235aa89b6dcc1296e0fe924ebc161fb75cc983241f73fc6

Download Submit
memory/2172-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2172-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2172-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2172-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2172-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-13-0x0000000000400000-0x0000000002DA4000-memory.dmp

Filesize
41.6MB

Download
memory/2824-2-0x0000000000400000-0x0000000002DA4000-memory.dmp

Filesize
41.6MB

Download
memory/2824-4-0x0000000000400000-0x0000000002DA4000-memory.dmp

Filesize
41.6MB

Download
memory/2824-8-0x0000000000400000-0x0000000002DA4000-memory.dmp

Filesize
41.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads