tofsee | 12fc26099c9211e05e88cf5e206a4ec8aec7df1e1b027957f29e1b976ac9f8af

Analysis

max time kernel
151s
max time network
156s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
11-01-2025 09:04

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General

Target

JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe
Size

11.4MB
MD5

fce6bf12343434546ad2ffe1162c6b84
SHA1

7ee5965dfdcfbe6ef41b53b75ff43e922a188747
SHA256

12fc26099c9211e05e88cf5e206a4ec8aec7df1e1b027957f29e1b976ac9f8af
SHA512

1e5dc62e6005c6ccb11a54a1389cbecf9b0f65f6859c42e4a922a37898901a636f7a999a8e20278393d0201a0b157149432162f89be1ed37c89867c4a70723f2
SSDEEP

196608:SI+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++3:S

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\cojvjnbt = "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
2848	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\cojvjnbt\ImagePath = "C:\\Windows\\SysWOW64\\cojvjnbt\\ahfqvqes.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2888	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2992	ahfqvqes.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2992 set thread context of 2888	2992	ahfqvqes.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2196	sc.exe
2828	sc.exe
2952	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	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	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe
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	ahfqvqes.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 1472	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	30
PID 1236 wrote to memory of 1472	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	30
PID 1236 wrote to memory of 1472	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	30
PID 1236 wrote to memory of 1472	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	30
PID 1236 wrote to memory of 3008	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	32
PID 1236 wrote to memory of 3008	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	32
PID 1236 wrote to memory of 3008	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	32
PID 1236 wrote to memory of 3008	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	32
PID 1236 wrote to memory of 2196	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	34
PID 1236 wrote to memory of 2196	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	34
PID 1236 wrote to memory of 2196	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	34
PID 1236 wrote to memory of 2196	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	34
PID 1236 wrote to memory of 2828	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	36
PID 1236 wrote to memory of 2828	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	36
PID 1236 wrote to memory of 2828	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	36
PID 1236 wrote to memory of 2828	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	36
PID 1236 wrote to memory of 2952	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	38
PID 1236 wrote to memory of 2952	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	38
PID 1236 wrote to memory of 2952	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	38
PID 1236 wrote to memory of 2952	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	38
PID 1236 wrote to memory of 2848	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	40
PID 1236 wrote to memory of 2848	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	40
PID 1236 wrote to memory of 2848	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	40
PID 1236 wrote to memory of 2848	1236	JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe	40
PID 2992 wrote to memory of 2888	2992	ahfqvqes.exe	43
PID 2992 wrote to memory of 2888	2992	ahfqvqes.exe	43
PID 2992 wrote to memory of 2888	2992	ahfqvqes.exe	43
PID 2992 wrote to memory of 2888	2992	ahfqvqes.exe	43
PID 2992 wrote to memory of 2888	2992	ahfqvqes.exe	43
PID 2992 wrote to memory of 2888	2992	ahfqvqes.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1236
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cojvjnbt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1472
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ahfqvqes.exe" C:\Windows\SysWOW64\cojvjnbt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cojvjnbt binPath= "C:\Windows\SysWOW64\cojvjnbt\ahfqvqes.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2196
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cojvjnbt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2828
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cojvjnbt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2952
- 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:2848

C:\Windows\SysWOW64\cojvjnbt\ahfqvqes.exe
C:\Windows\SysWOW64\cojvjnbt\ahfqvqes.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fce6bf12343434546ad2ffe1162c6b84.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2992
- 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:2888

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\ahfqvqes.exe

Filesize
14.9MB

MD5
b4d95b943cc49949cce98e1264e9fff3

SHA1
daec94558b1c2289b655089a19fa4ff0ada058a7

SHA256
06a4cb9f4c34839e8f9cac936a956019360c11b7d2dfc6acec531853ada21f31

SHA512
1496650a0feefde88db16a1d6f6acb5cb52e8af4c0506032e6d4824493de147ab44fd4d3889279ab9dd8012bf706b798e89e7ebd8fa79f3c994cc6f088f888bb

Download Submit
memory/1236-6-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/1236-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1236-1-0x0000000000930000-0x0000000000A30000-memory.dmp

Filesize
1024KB

Download
memory/1236-7-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1236-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1236-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2888-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2888-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2888-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2888-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2888-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2992-16-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads