tofsee | 8f770e85d9789cd77a5ebdf321ae54f5162d4b28c9f929ba4bf109bb770acfda

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-01-2025 10:41

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General

Target

JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe
Size

14.6MB
MD5

e22e7c6baeebd701b760f4a27a02d8c4
SHA1

1b924330a134a074ecb6f59affde76d6989100c0
SHA256

8f770e85d9789cd77a5ebdf321ae54f5162d4b28c9f929ba4bf109bb770acfda
SHA512

aa15560cb2fee8ae0c07acc6403f1ec9f33dc63cd6965d5e8af2f645970bb3c0fb7cec48646ddcaaa0fbef010bcdbc0468ea5c78658ea25994d1e1cd80e904e4
SSDEEP

98304:SC+PPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPf:x

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\nrnwwrhh = "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
2556	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\nrnwwrhh\ImagePath = "C:\\Windows\\SysWOW64\\nrnwwrhh\\aqlxrdhz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1412	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2812	aqlxrdhz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2812 set thread context of 1412	2812	aqlxrdhz.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2924	sc.exe
2864	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 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	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aqlxrdhz.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 2796	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	30
PID 2648 wrote to memory of 2796	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	30
PID 2648 wrote to memory of 2796	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	30
PID 2648 wrote to memory of 2796	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	30
PID 2648 wrote to memory of 2776	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	32
PID 2648 wrote to memory of 2776	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	32
PID 2648 wrote to memory of 2776	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	32
PID 2648 wrote to memory of 2776	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	32
PID 2648 wrote to memory of 2924	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	34
PID 2648 wrote to memory of 2924	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	34
PID 2648 wrote to memory of 2924	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	34
PID 2648 wrote to memory of 2924	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	34
PID 2648 wrote to memory of 2864	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	36
PID 2648 wrote to memory of 2864	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	36
PID 2648 wrote to memory of 2864	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	36
PID 2648 wrote to memory of 2864	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	36
PID 2648 wrote to memory of 2716	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	38
PID 2648 wrote to memory of 2716	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	38
PID 2648 wrote to memory of 2716	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	38
PID 2648 wrote to memory of 2716	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	38
PID 2648 wrote to memory of 2556	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	41
PID 2648 wrote to memory of 2556	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	41
PID 2648 wrote to memory of 2556	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	41
PID 2648 wrote to memory of 2556	2648	JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe	41
PID 2812 wrote to memory of 1412	2812	aqlxrdhz.exe	43
PID 2812 wrote to memory of 1412	2812	aqlxrdhz.exe	43
PID 2812 wrote to memory of 1412	2812	aqlxrdhz.exe	43
PID 2812 wrote to memory of 1412	2812	aqlxrdhz.exe	43
PID 2812 wrote to memory of 1412	2812	aqlxrdhz.exe	43
PID 2812 wrote to memory of 1412	2812	aqlxrdhz.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nrnwwrhh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\aqlxrdhz.exe" C:\Windows\SysWOW64\nrnwwrhh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nrnwwrhh binPath= "C:\Windows\SysWOW64\nrnwwrhh\aqlxrdhz.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2924
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nrnwwrhh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nrnwwrhh
  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:2556

C:\Windows\SysWOW64\nrnwwrhh\aqlxrdhz.exe
C:\Windows\SysWOW64\nrnwwrhh\aqlxrdhz.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e22e7c6baeebd701b760f4a27a02d8c4.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2812
- 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:1412

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\aqlxrdhz.exe

Filesize
13.3MB

MD5
9f544ced37ebf26cb02a65661f92c366

SHA1
6d634aa91a59e50108b1e37988f6254e49bde077

SHA256
8cee80618f7a5fa8216d8eac55a35bb86bec8d106d2c7007309ae619e2dbffa1

SHA512
43608abf4a995e7b1c1b8df830b41de291db2ede2470258b88559deb007d35fdb368f2857273735c1ac59438e08f75d59c5d1412a8b5bb48c58c772da75e30cb

Download Submit
memory/1412-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1412-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1412-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1412-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1412-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2648-2-0x0000000000250000-0x0000000000263000-memory.dmp

Filesize
76KB

Download
memory/2648-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2648-9-0x0000000000250000-0x0000000000263000-memory.dmp

Filesize
76KB

Download
memory/2648-8-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/2648-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2812-17-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads