tofsee | 4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b

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
23-12-2024 23:49

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General

Target

JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe
Size

153KB
MD5

f2f1e67436775229aac6ba0b6f3b6c08
SHA1

5a6ada0a661a53feddda818e50627717e072b9ad
SHA256

4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b
SHA512

6c08c15addc42cccf03e30f2fd4c29277430b48771e85d0af6268422ae6080f89e8ab85d6d21378a9a6fea15d9d232d4cd499c4842ff2ec2846457106b608c91
SSDEEP

3072:R1R6lArEn32yLOoX8p/r5HHcN+n02PO10Oyz:R76WU3hau82WtxOc

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\tvfpaouq = "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
2392	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\tvfpaouq\ImagePath = "C:\\Windows\\SysWOW64\\tvfpaouq\\mrnfdgs.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2748	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2072	mrnfdgs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2072 set thread context of 2748	2072	mrnfdgs.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
1052	sc.exe
2140	sc.exe
1756	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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mrnfdgs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2828 wrote to memory of 1228	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	28
PID 2828 wrote to memory of 1228	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	28
PID 2828 wrote to memory of 1228	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	28
PID 2828 wrote to memory of 1228	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	28
PID 2828 wrote to memory of 2884	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	30
PID 2828 wrote to memory of 2884	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	30
PID 2828 wrote to memory of 2884	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	30
PID 2828 wrote to memory of 2884	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	30
PID 2828 wrote to memory of 1052	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	32
PID 2828 wrote to memory of 1052	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	32
PID 2828 wrote to memory of 1052	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	32
PID 2828 wrote to memory of 1052	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	32
PID 2828 wrote to memory of 2140	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	34
PID 2828 wrote to memory of 2140	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	34
PID 2828 wrote to memory of 2140	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	34
PID 2828 wrote to memory of 2140	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	34
PID 2828 wrote to memory of 1756	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	36
PID 2828 wrote to memory of 1756	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	36
PID 2828 wrote to memory of 1756	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	36
PID 2828 wrote to memory of 1756	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	36
PID 2828 wrote to memory of 2392	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	39
PID 2828 wrote to memory of 2392	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	39
PID 2828 wrote to memory of 2392	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	39
PID 2828 wrote to memory of 2392	2828	JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe	39
PID 2072 wrote to memory of 2748	2072	mrnfdgs.exe	41
PID 2072 wrote to memory of 2748	2072	mrnfdgs.exe	41
PID 2072 wrote to memory of 2748	2072	mrnfdgs.exe	41
PID 2072 wrote to memory of 2748	2072	mrnfdgs.exe	41
PID 2072 wrote to memory of 2748	2072	mrnfdgs.exe	41
PID 2072 wrote to memory of 2748	2072	mrnfdgs.exe	41

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2828
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tvfpaouq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1228
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mrnfdgs.exe" C:\Windows\SysWOW64\tvfpaouq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tvfpaouq binPath= "C:\Windows\SysWOW64\tvfpaouq\mrnfdgs.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1052
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tvfpaouq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tvfpaouq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1756
- 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:2392

C:\Windows\SysWOW64\tvfpaouq\mrnfdgs.exe
C:\Windows\SysWOW64\tvfpaouq\mrnfdgs.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f9d298e9a7614df6b3d55887d8e0008fabef0b0b55b764ac6bcb781c7d0774b.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2072
- 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:2748

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\mrnfdgs.exe

Filesize
11.1MB

MD5
f310792a9a33cc011e365e2736b0f43d

SHA1
92ec7d8c2ce570fbfaeb754b762432469d5b9192

SHA256
8e850ea292ab646f27dfc87f3db878fc4b54b3c2193430bf48f2ea9bbf4f8f89

SHA512
3177f729edde6c99f4d71df231c4c28333e76f17aae992a28937217d875e8757000e6d527859661343fe460a5e3f8cb421d9f39c484289850cd71f30f6b69034

Download Submit
memory/2072-17-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/2748-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2748-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2748-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2748-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2748-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/2828-3-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/2828-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2828-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2828-9-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads