tofsee | 062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 20:06

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General

Target

JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe
Size

154KB
MD5

971185496b23d211fc7474e9374ab374
SHA1

ffa43b2c453d4bb11a0be1051a2053ae81229a9e
SHA256

062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517
SHA512

13257bb542d99b9f33672be36d34d27ddeca9d872b7ee4d3e0999f6d130c35a5b42664508b7b2bf3aacd5dd25e67d405ae640e8ed2f715c55de92e5748675e0a
SSDEEP

3072:LzamdBklO3M250scMTJ2449nC5Mc8SaxMEQk0O:LzldqlO3/0scwJu95SayEcO

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\tzhbgcvs = "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
2552	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\tzhbgcvs\ImagePath = "C:\\Windows\\SysWOW64\\tzhbgcvs\\tyumknz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3052	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2828	tyumknz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2828 set thread context of 3052	2828	tyumknz.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2756	sc.exe
2764	sc.exe
2696	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	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tyumknz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 2792	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	31
PID 2308 wrote to memory of 2792	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	31
PID 2308 wrote to memory of 2792	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	31
PID 2308 wrote to memory of 2792	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	31
PID 2308 wrote to memory of 2956	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	33
PID 2308 wrote to memory of 2956	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	33
PID 2308 wrote to memory of 2956	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	33
PID 2308 wrote to memory of 2956	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	33
PID 2308 wrote to memory of 2756	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	35
PID 2308 wrote to memory of 2756	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	35
PID 2308 wrote to memory of 2756	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	35
PID 2308 wrote to memory of 2756	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	35
PID 2308 wrote to memory of 2764	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	37
PID 2308 wrote to memory of 2764	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	37
PID 2308 wrote to memory of 2764	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	37
PID 2308 wrote to memory of 2764	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	37
PID 2308 wrote to memory of 2696	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	39
PID 2308 wrote to memory of 2696	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	39
PID 2308 wrote to memory of 2696	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	39
PID 2308 wrote to memory of 2696	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	39
PID 2308 wrote to memory of 2552	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	42
PID 2308 wrote to memory of 2552	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	42
PID 2308 wrote to memory of 2552	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	42
PID 2308 wrote to memory of 2552	2308	JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe	42
PID 2828 wrote to memory of 3052	2828	tyumknz.exe	44
PID 2828 wrote to memory of 3052	2828	tyumknz.exe	44
PID 2828 wrote to memory of 3052	2828	tyumknz.exe	44
PID 2828 wrote to memory of 3052	2828	tyumknz.exe	44
PID 2828 wrote to memory of 3052	2828	tyumknz.exe	44
PID 2828 wrote to memory of 3052	2828	tyumknz.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tzhbgcvs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2792
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tyumknz.exe" C:\Windows\SysWOW64\tzhbgcvs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2956
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tzhbgcvs binPath= "C:\Windows\SysWOW64\tzhbgcvs\tyumknz.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tzhbgcvs "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tzhbgcvs
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2696
- 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:2552

C:\Windows\SysWOW64\tzhbgcvs\tyumknz.exe
C:\Windows\SysWOW64\tzhbgcvs\tyumknz.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_062fce8b9f73b1fc87b28d03695f8000d7e20cb6c0ad388f346815ac561d4517.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2828
- 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:3052

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\tyumknz.exe

Filesize
14.2MB

MD5
f689cad3f0673a1f635f9df41ec70508

SHA1
8db0e2850a16e1074056a48ac485f8b48a192994

SHA256
63a24166a95ced94fa190d12d74a3e01ba45e505e48a4e84f292572c9f77c221

SHA512
99b34529709c70095ec35e86767cf96f5057e1b3313d5d3eaf608db23e5059b0d8eeb426a4d0fef7e2b2261c0e198430ec3ed6d99a549e2b22424dd1d4d096da

Download Submit
memory/2308-8-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/2308-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2308-1-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/2308-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2308-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2308-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2828-17-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3052-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3052-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3052-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3052-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3052-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads