tofsee | f16c72dc0ac6ba541bd6f2ecbdeb8633d6468bac2c9a3aa98a320425e11fa7e5

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 15:27

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General

Target

JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe
Size

10.4MB
MD5

24f6cb235b15df660607faf6729b9d96
SHA1

f8c74f532e72f57cd969e7e7bad3b179c7ca5471
SHA256

f16c72dc0ac6ba541bd6f2ecbdeb8633d6468bac2c9a3aa98a320425e11fa7e5
SHA512

c5a8e428f57983f9c7537916dd3a72670473317a1a89ed2837a363400e7d89cfc80d2e230b71f17ac15a3cb74f1bd0807f2ca9ffd48c0378318229efbb943576
SSDEEP

6144:ibxssrIoKMqRI49tDA498xxAoMlmC6Yvbacc1B:6O/MqRIUDA498vEN6YTp

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\mawvearz = "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
1384	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\mawvearz\ImagePath = "C:\\Windows\\SysWOW64\\mawvearz\\amyggrgo.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2752	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3036	amyggrgo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3036 set thread context of 2752	3036	amyggrgo.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2116	sc.exe
2856	sc.exe
2740	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_24f6cb235b15df660607faf6729b9d96.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	amyggrgo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2620 wrote to memory of 2840	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	30
PID 2620 wrote to memory of 2840	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	30
PID 2620 wrote to memory of 2840	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	30
PID 2620 wrote to memory of 2840	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	30
PID 2620 wrote to memory of 2956	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	32
PID 2620 wrote to memory of 2956	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	32
PID 2620 wrote to memory of 2956	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	32
PID 2620 wrote to memory of 2956	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	32
PID 2620 wrote to memory of 2856	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	34
PID 2620 wrote to memory of 2856	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	34
PID 2620 wrote to memory of 2856	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	34
PID 2620 wrote to memory of 2856	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	34
PID 2620 wrote to memory of 2740	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	36
PID 2620 wrote to memory of 2740	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	36
PID 2620 wrote to memory of 2740	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	36
PID 2620 wrote to memory of 2740	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	36
PID 2620 wrote to memory of 2116	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	38
PID 2620 wrote to memory of 2116	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	38
PID 2620 wrote to memory of 2116	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	38
PID 2620 wrote to memory of 2116	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	38
PID 2620 wrote to memory of 1384	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	41
PID 2620 wrote to memory of 1384	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	41
PID 2620 wrote to memory of 1384	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	41
PID 2620 wrote to memory of 1384	2620	JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe	41
PID 3036 wrote to memory of 2752	3036	amyggrgo.exe	43
PID 3036 wrote to memory of 2752	3036	amyggrgo.exe	43
PID 3036 wrote to memory of 2752	3036	amyggrgo.exe	43
PID 3036 wrote to memory of 2752	3036	amyggrgo.exe	43
PID 3036 wrote to memory of 2752	3036	amyggrgo.exe	43
PID 3036 wrote to memory of 2752	3036	amyggrgo.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2620
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mawvearz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2840
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\amyggrgo.exe" C:\Windows\SysWOW64\mawvearz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2956
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mawvearz binPath= "C:\Windows\SysWOW64\mawvearz\amyggrgo.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2856
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mawvearz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mawvearz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2116
- 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:1384

C:\Windows\SysWOW64\mawvearz\amyggrgo.exe
C:\Windows\SysWOW64\mawvearz\amyggrgo.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24f6cb235b15df660607faf6729b9d96.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3036
- 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:2752

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\amyggrgo.exe

Filesize
10.5MB

MD5
dc7cb01da8b984b2f3c6db19e6374af3

SHA1
c493692d7cb7d7eb8faf0db4698257a60bfab83d

SHA256
2c45c0f56f4ad279b7e72365b909fe05a19aa06f8892ce9b3623bb54c69503a8

SHA512
d8f97fb1a2f16decce1fc4c2e392b4ece54a5ccabb29b6fce21ad1b6693a4260ae2ca9d8701ac1d6bd1fe032e0a07da0a8dea8f13fe851427265b2d5e4896f46

Download Submit
memory/2620-8-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2620-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2620-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2620-10-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2620-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2620-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/2752-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2752-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2752-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2752-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2752-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3036-17-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads