tofsee | 1f4c50d838d219ad267220ab0364f0f5e9cf0311e9d34772bcae88e64af0a0ef

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 02:35

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General

Target

JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe
Size

10.5MB
MD5

013fba036dd48a94da833b2bf9803b76
SHA1

89d754dc7baded56e4652262a19a659d265d0ebf
SHA256

1f4c50d838d219ad267220ab0364f0f5e9cf0311e9d34772bcae88e64af0a0ef
SHA512

eca85f354836abcce6e1167f3615a2ef06addaf23077843d378e2cd3945a4d9ba832ca381c7e243ee10232069b358e42f0ccc0a010a6368fd71cfcab45c93d1e
SSDEEP

98304:5Y3333333333333333333333333333333333333333333333333333333333333H:5

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\sdnixwji = "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
2680	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\sdnixwji\ImagePath = "C:\\Windows\\SysWOW64\\sdnixwji\\fmyluhic.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2552	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2760	fmyluhic.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2760 set thread context of 2552	2760	fmyluhic.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
3012	sc.exe
2804	sc.exe
2724	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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_013fba036dd48a94da833b2bf9803b76.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	svchost.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fmyluhic.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 1032	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	30
PID 2052 wrote to memory of 1032	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	30
PID 2052 wrote to memory of 1032	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	30
PID 2052 wrote to memory of 1032	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	30
PID 2052 wrote to memory of 2352	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	32
PID 2052 wrote to memory of 2352	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	32
PID 2052 wrote to memory of 2352	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	32
PID 2052 wrote to memory of 2352	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	32
PID 2052 wrote to memory of 3012	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	34
PID 2052 wrote to memory of 3012	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	34
PID 2052 wrote to memory of 3012	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	34
PID 2052 wrote to memory of 3012	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	34
PID 2052 wrote to memory of 2804	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	36
PID 2052 wrote to memory of 2804	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	36
PID 2052 wrote to memory of 2804	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	36
PID 2052 wrote to memory of 2804	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	36
PID 2052 wrote to memory of 2724	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	38
PID 2052 wrote to memory of 2724	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	38
PID 2052 wrote to memory of 2724	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	38
PID 2052 wrote to memory of 2724	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	38
PID 2052 wrote to memory of 2680	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	41
PID 2052 wrote to memory of 2680	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	41
PID 2052 wrote to memory of 2680	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	41
PID 2052 wrote to memory of 2680	2052	JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe	41
PID 2760 wrote to memory of 2552	2760	fmyluhic.exe	44
PID 2760 wrote to memory of 2552	2760	fmyluhic.exe	44
PID 2760 wrote to memory of 2552	2760	fmyluhic.exe	44
PID 2760 wrote to memory of 2552	2760	fmyluhic.exe	44
PID 2760 wrote to memory of 2552	2760	fmyluhic.exe	44
PID 2760 wrote to memory of 2552	2760	fmyluhic.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sdnixwji\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1032
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fmyluhic.exe" C:\Windows\SysWOW64\sdnixwji\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2352
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create sdnixwji binPath= "C:\Windows\SysWOW64\sdnixwji\fmyluhic.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_013fba036dd48a94da833b2bf9803b76.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description sdnixwji "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start sdnixwji
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2724
- 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:2680

C:\Windows\SysWOW64\sdnixwji\fmyluhic.exe
C:\Windows\SysWOW64\sdnixwji\fmyluhic.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_013fba036dd48a94da833b2bf9803b76.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:2552

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\fmyluhic.exe

Filesize
13.0MB

MD5
be622b03b7727af870d2bf255f64ae01

SHA1
7ebcee25c3cf4ae62003a2a13fe8299de5977203

SHA256
654227be1ad2bd1f95949943615dca511325ce0e8703d307385562fafdcdec9a

SHA512
407a54ee76fb677f3c21ce47f0b49253c7f7e96980ba889a50f30f12ba23abdeb67c849535f203f87987daa2280ba75f7657654ac05a2ba2d0f43398b25c0eb1

Download Submit
memory/2052-8-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2052-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2052-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2052-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2052-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2052-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/2552-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2552-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2552-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2552-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2552-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2760-16-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads