tofsee | 92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 08:33

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General

Target

JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe
Size

289KB
MD5

5f83cbb604e017a7ec6e46776e538e24
SHA1

3219e6f27f3cebd7d499e13cf9e1146c186333cf
SHA256

92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67
SHA512

97843c593e77064fb1a764bdbadf92742c473f5a20b5ae5024be7bf65516f0cc0c8d558cda57032b00bb634189314f0322a340407eaf19ced5da680cafba2afb
SSDEEP

6144:2lfibHny83UbS4sqvfBxBbhAXY0NMHUBL5:2hqUbS4sqvlKXlYG9

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.ru

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\tvmlgkao = "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
2620	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\tvmlgkao\ImagePath = "C:\\Windows\\SysWOW64\\tvmlgkao\\vxrgcyul.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2576	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2612	vxrgcyul.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2612 set thread context of 2576	2612	vxrgcyul.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2968	sc.exe
3016	sc.exe
2748	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_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.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	vxrgcyul.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1868 wrote to memory of 2296	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	28
PID 1868 wrote to memory of 2296	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	28
PID 1868 wrote to memory of 2296	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	28
PID 1868 wrote to memory of 2296	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	28
PID 1868 wrote to memory of 2100	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	30
PID 1868 wrote to memory of 2100	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	30
PID 1868 wrote to memory of 2100	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	30
PID 1868 wrote to memory of 2100	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	30
PID 1868 wrote to memory of 2968	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	32
PID 1868 wrote to memory of 2968	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	32
PID 1868 wrote to memory of 2968	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	32
PID 1868 wrote to memory of 2968	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	32
PID 1868 wrote to memory of 3016	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	34
PID 1868 wrote to memory of 3016	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	34
PID 1868 wrote to memory of 3016	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	34
PID 1868 wrote to memory of 3016	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	34
PID 1868 wrote to memory of 2748	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	36
PID 1868 wrote to memory of 2748	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	36
PID 1868 wrote to memory of 2748	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	36
PID 1868 wrote to memory of 2748	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	36
PID 1868 wrote to memory of 2620	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	39
PID 1868 wrote to memory of 2620	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	39
PID 1868 wrote to memory of 2620	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	39
PID 1868 wrote to memory of 2620	1868	JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe	39
PID 2612 wrote to memory of 2576	2612	vxrgcyul.exe	41
PID 2612 wrote to memory of 2576	2612	vxrgcyul.exe	41
PID 2612 wrote to memory of 2576	2612	vxrgcyul.exe	41
PID 2612 wrote to memory of 2576	2612	vxrgcyul.exe	41
PID 2612 wrote to memory of 2576	2612	vxrgcyul.exe	41
PID 2612 wrote to memory of 2576	2612	vxrgcyul.exe	41

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1868
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tvmlgkao\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2296
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vxrgcyul.exe" C:\Windows\SysWOW64\tvmlgkao\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2100
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tvmlgkao binPath= "C:\Windows\SysWOW64\tvmlgkao\vxrgcyul.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2968
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tvmlgkao "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3016
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tvmlgkao
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- 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:2620

C:\Windows\SysWOW64\tvmlgkao\vxrgcyul.exe
C:\Windows\SysWOW64\tvmlgkao\vxrgcyul.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_92a985d159dbf16e9509eace5334644732a48f00ada8e426a7728e9e809a7c67.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2612
- 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:2576

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\vxrgcyul.exe

Filesize
14.1MB

MD5
f303b0268b0eb66d85d2ebd7445abeb4

SHA1
d1138a2298b8d8745b3d0567bb2050e05cef2f84

SHA256
563fb0b680a5f6c0810de60c2777acdff7295ea6a916ef3f28cb04dffb078852

SHA512
b982e5595a5e169003fe7233910ae42a8ea582999b988c74f9ed10cdeb6c5ef14d9d7f2d0dae2dc425b3d5f83818f4248e3ab864cff8e22ac089857c4b40640d

Download Submit
memory/1868-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1868-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1868-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1868-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1868-7-0x0000000000400000-0x0000000002B41000-memory.dmp

Filesize
39.3MB

Download
memory/1868-1-0x0000000002C80000-0x0000000002D80000-memory.dmp

Filesize
1024KB

Download
memory/2576-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2576-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2576-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2576-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2576-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2612-15-0x0000000000400000-0x0000000002B41000-memory.dmp

Filesize
39.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads