tofsee | 8fe7c06b85bc726f57b04921a0695f69520a4d639f6c718a1d2d6067d347cc67

Analysis

max time kernel
149s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-10-2024 03:09

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General

Target

29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe
Size

12.8MB
MD5

29c1e4e4482eb01936de16ff0e11041c
SHA1

69838a4c24177c6702a8d89a5c3bd83760449aaa
SHA256

8fe7c06b85bc726f57b04921a0695f69520a4d639f6c718a1d2d6067d347cc67
SHA512

425d09859a89aa7cac0420be192d3c3bc33d12f50e08a81c2b3eabfad89809b734d5f56ae236e1b2123ec6f62a0704a0a30b0226718d27f690ab504d071d9275
SSDEEP

24576:3nrnTREWa7SX1TOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOu:RJa7M

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.6

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan 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\tzxhqgy = "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
2548	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\tzxhqgy\ImagePath = "C:\\Windows\\SysWOW64\\tzxhqgy\\rsuvpsnf.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1920	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2760	rsuvpsnf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2760 set thread context of 1920	2760	rsuvpsnf.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
1756	sc.exe
2256	sc.exe
2796	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	rsuvpsnf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 2836	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	31
PID 2276 wrote to memory of 2836	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	31
PID 2276 wrote to memory of 2836	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	31
PID 2276 wrote to memory of 2836	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	31
PID 2276 wrote to memory of 2468	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	33
PID 2276 wrote to memory of 2468	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	33
PID 2276 wrote to memory of 2468	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	33
PID 2276 wrote to memory of 2468	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	33
PID 2276 wrote to memory of 1756	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	35
PID 2276 wrote to memory of 1756	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	35
PID 2276 wrote to memory of 1756	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	35
PID 2276 wrote to memory of 1756	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	35
PID 2276 wrote to memory of 2256	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	37
PID 2276 wrote to memory of 2256	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	37
PID 2276 wrote to memory of 2256	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	37
PID 2276 wrote to memory of 2256	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	37
PID 2276 wrote to memory of 2796	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	39
PID 2276 wrote to memory of 2796	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	39
PID 2276 wrote to memory of 2796	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	39
PID 2276 wrote to memory of 2796	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	39
PID 2276 wrote to memory of 2548	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	42
PID 2276 wrote to memory of 2548	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	42
PID 2276 wrote to memory of 2548	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	42
PID 2276 wrote to memory of 2548	2276	29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe	42
PID 2760 wrote to memory of 1920	2760	rsuvpsnf.exe	44
PID 2760 wrote to memory of 1920	2760	rsuvpsnf.exe	44
PID 2760 wrote to memory of 1920	2760	rsuvpsnf.exe	44
PID 2760 wrote to memory of 1920	2760	rsuvpsnf.exe	44
PID 2760 wrote to memory of 1920	2760	rsuvpsnf.exe	44
PID 2760 wrote to memory of 1920	2760	rsuvpsnf.exe	44

C:\Users\Admin\AppData\Local\Temp\29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tzxhqgy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rsuvpsnf.exe" C:\Windows\SysWOW64\tzxhqgy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2468
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tzxhqgy binPath= "C:\Windows\SysWOW64\tzxhqgy\rsuvpsnf.exe /d\"C:\Users\Admin\AppData\Local\Temp\29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1756
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tzxhqgy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2256
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tzxhqgy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- 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:2548

C:\Windows\SysWOW64\tzxhqgy\rsuvpsnf.exe
C:\Windows\SysWOW64\tzxhqgy\rsuvpsnf.exe /d"C:\Users\Admin\AppData\Local\Temp\29c1e4e4482eb01936de16ff0e11041c_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760
- 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:1920

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\rsuvpsnf.exe

Filesize
11.9MB

MD5
6ab6b1777de2b50dd112dd0dddb5902c

SHA1
26055192de5b9effe855d26fe261b585dba63f70

SHA256
32b8c08ecaa02e4b4509a8d2c23cee53cbf18294d589d9093f4dac9082dc081b

SHA512
43d76ead1791bfd5fbcf32c5dc8521a6936c974bcce22e2b7ebfbc36f812baa8bce281229bf8f8828df9c8030b8e522548119ceb8d454c119e853ef752dade2d

Download Submit
memory/1920-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1920-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1920-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1920-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1920-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2276-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2276-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2276-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2276-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2276-7-0x0000000000400000-0x00000000008F5000-memory.dmp

Filesize
5.0MB

Download
memory/2276-1-0x0000000000AD0000-0x0000000000BD0000-memory.dmp

Filesize
1024KB

Download
memory/2760-16-0x0000000000400000-0x00000000008F5000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads