tofsee | 4ec0c88acd4c018454f87a96b5ef6310bb2ae875729aca010726d74603142689

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
02-11-2024 17:46

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General

Target

86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe
Size

11.4MB
MD5

86c4a6095758513bcb590895ed3ba9e5
SHA1

395ac4a6632eb2a9a55b9cfdc2e04bde0e87681f
SHA256

4ec0c88acd4c018454f87a96b5ef6310bb2ae875729aca010726d74603142689
SHA512

5a820bbbdfb5fc7663757e95b12b2827cbdad3b7fd355b5cf069fdb399531e9a402b4a696d4a0eec798d604e2f97093b041f4d1d53d894abab037fd2dcaf6be3
SSDEEP

196608:S+8888888888888888888888888888888888888888888888888888888888888r:T888888888888888888888888888888c

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\nxcfqqlb = "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
2100	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\nxcfqqlb\ImagePath = "C:\\Windows\\SysWOW64\\nxcfqqlb\\qcowwhwe.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
920	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2744	qcowwhwe.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2744 set thread context of 920	2744	qcowwhwe.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2696	sc.exe
2716	sc.exe
2684	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	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qcowwhwe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 3052	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	30
PID 2776 wrote to memory of 3052	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	30
PID 2776 wrote to memory of 3052	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	30
PID 2776 wrote to memory of 3052	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	30
PID 2776 wrote to memory of 2784	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	32
PID 2776 wrote to memory of 2784	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	32
PID 2776 wrote to memory of 2784	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	32
PID 2776 wrote to memory of 2784	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	32
PID 2776 wrote to memory of 2696	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	34
PID 2776 wrote to memory of 2696	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	34
PID 2776 wrote to memory of 2696	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	34
PID 2776 wrote to memory of 2696	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	34
PID 2776 wrote to memory of 2716	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	36
PID 2776 wrote to memory of 2716	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	36
PID 2776 wrote to memory of 2716	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	36
PID 2776 wrote to memory of 2716	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	36
PID 2776 wrote to memory of 2684	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	38
PID 2776 wrote to memory of 2684	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	38
PID 2776 wrote to memory of 2684	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	38
PID 2776 wrote to memory of 2684	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	38
PID 2776 wrote to memory of 2100	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	41
PID 2776 wrote to memory of 2100	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	41
PID 2776 wrote to memory of 2100	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	41
PID 2776 wrote to memory of 2100	2776	86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe	41
PID 2744 wrote to memory of 920	2744	qcowwhwe.exe	43
PID 2744 wrote to memory of 920	2744	qcowwhwe.exe	43
PID 2744 wrote to memory of 920	2744	qcowwhwe.exe	43
PID 2744 wrote to memory of 920	2744	qcowwhwe.exe	43
PID 2744 wrote to memory of 920	2744	qcowwhwe.exe	43
PID 2744 wrote to memory of 920	2744	qcowwhwe.exe	43

C:\Users\Admin\AppData\Local\Temp\86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nxcfqqlb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qcowwhwe.exe" C:\Windows\SysWOW64\nxcfqqlb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2784
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nxcfqqlb binPath= "C:\Windows\SysWOW64\nxcfqqlb\qcowwhwe.exe /d\"C:\Users\Admin\AppData\Local\Temp\86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nxcfqqlb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nxcfqqlb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2684
- 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:2100

C:\Windows\SysWOW64\nxcfqqlb\qcowwhwe.exe
C:\Windows\SysWOW64\nxcfqqlb\qcowwhwe.exe /d"C:\Users\Admin\AppData\Local\Temp\86c4a6095758513bcb590895ed3ba9e5_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2744
- 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:920

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\qcowwhwe.exe

Filesize
10.4MB

MD5
f45df8251523a9a6dd9bb830025eedab

SHA1
3af3157038148aa4c5e51463af52d3b0475d18ba

SHA256
a994bbb22d0fa50b26a88df89778bd14d81229b6706452c16b0bbdae95746adf

SHA512
c1fa10cd07a514f9ea24be80723002636a5c9e185f33e07f2c62bfada715f86c23f85408c4f8d4989536d41c0695916d5306dd20b357269601c3262f34fc7aac

Download Submit
memory/920-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/920-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/920-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/920-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/920-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2744-16-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2776-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2776-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2776-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2776-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2776-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2776-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads