tofsee | cddfcbbe5656cb29b2976fb1267fecf1c605b9d6752f6449ce8c204c3b994169

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
05-01-2025 20:44

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General

Target

JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe
Size

14.2MB
MD5

bcabc295b45c3d62fbc279122262e7e5
SHA1

b93934170d87fd73182a57d312e1363c35b7923c
SHA256

cddfcbbe5656cb29b2976fb1267fecf1c605b9d6752f6449ce8c204c3b994169
SHA512

ad55d782f55d87309219bfcd4a02bd9f44ad682c9f4bf4002c4011ba8aebd87a47df5b9b3664c783061304c3171b9a539bf6a4e45e724243290f05da105b0413
SSDEEP

98304:6vCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC6:6

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\jjzwcmff = "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
2816	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\jjzwcmff\ImagePath = "C:\\Windows\\SysWOW64\\jjzwcmff\\diewuxj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1336	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2792	diewuxj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2792 set thread context of 1336	2792	diewuxj.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2896	sc.exe
3056	sc.exe
3064	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	diewuxj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2576 wrote to memory of 2244	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	30
PID 2576 wrote to memory of 2244	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	30
PID 2576 wrote to memory of 2244	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	30
PID 2576 wrote to memory of 2244	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	30
PID 2576 wrote to memory of 2920	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	32
PID 2576 wrote to memory of 2920	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	32
PID 2576 wrote to memory of 2920	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	32
PID 2576 wrote to memory of 2920	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	32
PID 2576 wrote to memory of 2896	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	34
PID 2576 wrote to memory of 2896	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	34
PID 2576 wrote to memory of 2896	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	34
PID 2576 wrote to memory of 2896	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	34
PID 2576 wrote to memory of 3056	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	36
PID 2576 wrote to memory of 3056	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	36
PID 2576 wrote to memory of 3056	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	36
PID 2576 wrote to memory of 3056	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	36
PID 2576 wrote to memory of 3064	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	38
PID 2576 wrote to memory of 3064	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	38
PID 2576 wrote to memory of 3064	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	38
PID 2576 wrote to memory of 3064	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	38
PID 2576 wrote to memory of 2816	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	41
PID 2576 wrote to memory of 2816	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	41
PID 2576 wrote to memory of 2816	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	41
PID 2576 wrote to memory of 2816	2576	JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe	41
PID 2792 wrote to memory of 1336	2792	diewuxj.exe	43
PID 2792 wrote to memory of 1336	2792	diewuxj.exe	43
PID 2792 wrote to memory of 1336	2792	diewuxj.exe	43
PID 2792 wrote to memory of 1336	2792	diewuxj.exe	43
PID 2792 wrote to memory of 1336	2792	diewuxj.exe	43
PID 2792 wrote to memory of 1336	2792	diewuxj.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2576
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jjzwcmff\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2244
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\diewuxj.exe" C:\Windows\SysWOW64\jjzwcmff\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jjzwcmff binPath= "C:\Windows\SysWOW64\jjzwcmff\diewuxj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2896
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jjzwcmff "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jjzwcmff
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3064
- 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:2816

C:\Windows\SysWOW64\jjzwcmff\diewuxj.exe
C:\Windows\SysWOW64\jjzwcmff\diewuxj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bcabc295b45c3d62fbc279122262e7e5.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2792
- 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:1336

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\diewuxj.exe

Filesize
10.5MB

MD5
a6ca41abfd00aa6ddcdf2442a8867cf3

SHA1
5949228654834af6755adc5d4d699923da094eea

SHA256
26ac5e94f0d038370db4b8c9031c66487c9e832d1475b5706daa11e575a2339b

SHA512
41bc5aae271a4d5fd01699850bcfd99a36fbbee9802b9f36233727f1a81f81747e8e05961b016ee7fd05749596940d2962adaea84fe88fd40d3ac074b11bed3d

Download Submit
memory/1336-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1336-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1336-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1336-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1336-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1336-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2576-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2576-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2576-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2576-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2576-8-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2576-1-0x0000000000600000-0x0000000000700000-memory.dmp

Filesize
1024KB

Download
memory/2792-15-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads