tofsee | 6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c

Analysis

max time kernel
144s
max time network
144s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 04:43

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe
Size

285KB
MD5

5abd029a5ad6a47b553bd7cbc48c0d77
SHA1

c1a7a3fcfb197c1f7bb03e642c84d1208c111b6e
SHA256

6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c
SHA512

22d8116dc12a7dd2be6cbf8cd8d0482723e9f68b4ba03050e7c5995dd639c4acf7e534ea8c408b5075a239d29ee2690e88f624a93d17aab714f0677c890069f8
SSDEEP

3072:d1nOYAZsDFRRvGyphu1eB9jyb1H2Ab20AyilOvXjWZ1HWiSwgrXHfN8lLJ9w12ks:d1ORZsh21ePWxH2nWqZ1HAHl8lLJ9w/

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\bjbhkrup = "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
1912	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\bjbhkrup\ImagePath = "C:\\Windows\\SysWOW64\\bjbhkrup\\tfrzzkzh.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
264	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2672	tfrzzkzh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2672 set thread context of 264	2672	tfrzzkzh.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2604	sc.exe
2912	sc.exe
2652	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	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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tfrzzkzh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2824 wrote to memory of 2732	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	30
PID 2824 wrote to memory of 2732	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	30
PID 2824 wrote to memory of 2732	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	30
PID 2824 wrote to memory of 2732	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	30
PID 2824 wrote to memory of 2844	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	32
PID 2824 wrote to memory of 2844	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	32
PID 2824 wrote to memory of 2844	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	32
PID 2824 wrote to memory of 2844	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	32
PID 2824 wrote to memory of 2912	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	34
PID 2824 wrote to memory of 2912	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	34
PID 2824 wrote to memory of 2912	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	34
PID 2824 wrote to memory of 2912	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	34
PID 2824 wrote to memory of 2652	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	36
PID 2824 wrote to memory of 2652	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	36
PID 2824 wrote to memory of 2652	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	36
PID 2824 wrote to memory of 2652	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	36
PID 2824 wrote to memory of 2604	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	38
PID 2824 wrote to memory of 2604	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	38
PID 2824 wrote to memory of 2604	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	38
PID 2824 wrote to memory of 2604	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	38
PID 2824 wrote to memory of 1912	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	41
PID 2824 wrote to memory of 1912	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	41
PID 2824 wrote to memory of 1912	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	41
PID 2824 wrote to memory of 1912	2824	JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe	41
PID 2672 wrote to memory of 264	2672	tfrzzkzh.exe	43
PID 2672 wrote to memory of 264	2672	tfrzzkzh.exe	43
PID 2672 wrote to memory of 264	2672	tfrzzkzh.exe	43
PID 2672 wrote to memory of 264	2672	tfrzzkzh.exe	43
PID 2672 wrote to memory of 264	2672	tfrzzkzh.exe	43
PID 2672 wrote to memory of 264	2672	tfrzzkzh.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2824
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bjbhkrup\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2732
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tfrzzkzh.exe" C:\Windows\SysWOW64\bjbhkrup\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bjbhkrup binPath= "C:\Windows\SysWOW64\bjbhkrup\tfrzzkzh.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2912
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bjbhkrup "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2652
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bjbhkrup
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2604
- 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:1912

C:\Windows\SysWOW64\bjbhkrup\tfrzzkzh.exe
C:\Windows\SysWOW64\bjbhkrup\tfrzzkzh.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6aeeabc242e4fe99aeef23cedf0444ce06d7ef74a592d7942d6798d4a5978e3c.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2672
- 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:264

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tfrzzkzh.exe

Filesize
12.2MB

MD5
53429d178d50b234440b9c040e96109f

SHA1
d537dd7ccb3ef97d66978a56ff2f4ad2357ae1f2

SHA256
0a2fda351718db5bb158b45d6b9b72f65b66791e0389d040f118f57dd4dbcf1d

SHA512
4713308ba29f9487be47cd7d88e1fff83103fb9a4a97a0e529b7dc19d38cde44b6505b9679751e0feaa2ff729d5c670a07696037a6b51b645f4473dcc7edbaa6

Download Submit
memory/264-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/264-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/264-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/264-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/264-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2672-16-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2824-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2824-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2824-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2824-8-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2824-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2824-1-0x0000000002D60000-0x0000000002E60000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads