tofsee | 12e184a9efc0897d7bec4c00b64355a5364faac11514f5fb6d2a8e3c2851c1b5

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 21:53

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General

Target

JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe
Size

14.1MB
MD5

7b59084371e878c62a6b09ccf4bd82ff
SHA1

57f2a5f62fde2b607d43de19d84958b6935a814a
SHA256

12e184a9efc0897d7bec4c00b64355a5364faac11514f5fb6d2a8e3c2851c1b5
SHA512

811b9ae6bea68ed73fd0251dcc756fffd95c0e891310978cd262f08667ae04ed811ee3b5f140a260b3b109770cea713b1d0907e43252c8af631dbc3033897309
SSDEEP

98304:6wfDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDj:6w

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\bmwlmrdw = "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
2728	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\bmwlmrdw\ImagePath = "C:\\Windows\\SysWOW64\\bmwlmrdw\\otphfiu.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2632	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3032	otphfiu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3032 set thread context of 2632	3032	otphfiu.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
1952	sc.exe
2696	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.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	otphfiu.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 3064 wrote to memory of 1880	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	30
PID 3064 wrote to memory of 1880	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	30
PID 3064 wrote to memory of 1880	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	30
PID 3064 wrote to memory of 1880	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	30
PID 3064 wrote to memory of 2088	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	32
PID 3064 wrote to memory of 2088	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	32
PID 3064 wrote to memory of 2088	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	32
PID 3064 wrote to memory of 2088	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	32
PID 3064 wrote to memory of 1952	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	34
PID 3064 wrote to memory of 1952	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	34
PID 3064 wrote to memory of 1952	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	34
PID 3064 wrote to memory of 1952	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	34
PID 3064 wrote to memory of 2696	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	36
PID 3064 wrote to memory of 2696	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	36
PID 3064 wrote to memory of 2696	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	36
PID 3064 wrote to memory of 2696	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	36
PID 3064 wrote to memory of 2816	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	38
PID 3064 wrote to memory of 2816	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	38
PID 3064 wrote to memory of 2816	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	38
PID 3064 wrote to memory of 2816	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	38
PID 3064 wrote to memory of 2728	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	41
PID 3064 wrote to memory of 2728	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	41
PID 3064 wrote to memory of 2728	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	41
PID 3064 wrote to memory of 2728	3064	JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe	41
PID 3032 wrote to memory of 2632	3032	otphfiu.exe	43
PID 3032 wrote to memory of 2632	3032	otphfiu.exe	43
PID 3032 wrote to memory of 2632	3032	otphfiu.exe	43
PID 3032 wrote to memory of 2632	3032	otphfiu.exe	43
PID 3032 wrote to memory of 2632	3032	otphfiu.exe	43
PID 3032 wrote to memory of 2632	3032	otphfiu.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bmwlmrdw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1880
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\otphfiu.exe" C:\Windows\SysWOW64\bmwlmrdw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2088
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bmwlmrdw binPath= "C:\Windows\SysWOW64\bmwlmrdw\otphfiu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1952
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bmwlmrdw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bmwlmrdw
  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:2728

C:\Windows\SysWOW64\bmwlmrdw\otphfiu.exe
C:\Windows\SysWOW64\bmwlmrdw\otphfiu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b59084371e878c62a6b09ccf4bd82ff.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3032
- 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:2632

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\otphfiu.exe

Filesize
10.7MB

MD5
f749e77428e18912e97ed19d47c6791f

SHA1
d908cfcf3c17a937f211c5cca2b2e1c3cd95b553

SHA256
79b16e3392c495183f4969aaf7ab0ecb86d56738fd56bd9ab4dc176046a17b7d

SHA512
462ac950de2b6e8c5ac52205e9674391e55c4229d14bdd645cfb994a1681e80db073bc431e123ffeb6794c5c24f2939174924312722f2014a7def052765c41f7

Download Submit
memory/2632-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2632-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2632-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2632-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2632-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3032-17-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/3064-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3064-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3064-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3064-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3064-8-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/3064-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads