tofsee | ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/12/2024, 12:50

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General

Target

JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe
Size

272KB
MD5

83b5776099c94810fb6f10211e135228
SHA1

39847c224f60ab065f7811a9e358558162c83a20
SHA256

ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec
SHA512

9a7adbfb0ffb6654d05a2f38b2daf0b0e5a2b1840205c71396058fb6ace9151c880b9e491ba931d7ce8c8364fa266ee13a91595b0bfb2756ad111f73c6eae492
SSDEEP

6144:5HB/PtD4M5G0tZwk4NF/MIPNVsuzbgwu6L7ITsqSigaTwVf:X/Pl4MU+V4DZVsunnn7s

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\kikugurx = "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
2608	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\kikugurx\ImagePath = "C:\\Windows\\SysWOW64\\kikugurx\\rajrfxfo.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2704	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2544	rajrfxfo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2544 set thread context of 2704	2544	rajrfxfo.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2788	sc.exe
1968	sc.exe
2556	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_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rajrfxfo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 2796	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	30
PID 2132 wrote to memory of 2796	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	30
PID 2132 wrote to memory of 2796	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	30
PID 2132 wrote to memory of 2796	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	30
PID 2132 wrote to memory of 2640	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	32
PID 2132 wrote to memory of 2640	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	32
PID 2132 wrote to memory of 2640	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	32
PID 2132 wrote to memory of 2640	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	32
PID 2132 wrote to memory of 1968	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	34
PID 2132 wrote to memory of 1968	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	34
PID 2132 wrote to memory of 1968	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	34
PID 2132 wrote to memory of 1968	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	34
PID 2132 wrote to memory of 2556	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	36
PID 2132 wrote to memory of 2556	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	36
PID 2132 wrote to memory of 2556	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	36
PID 2132 wrote to memory of 2556	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	36
PID 2132 wrote to memory of 2788	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	38
PID 2132 wrote to memory of 2788	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	38
PID 2132 wrote to memory of 2788	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	38
PID 2132 wrote to memory of 2788	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	38
PID 2132 wrote to memory of 2608	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	41
PID 2132 wrote to memory of 2608	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	41
PID 2132 wrote to memory of 2608	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	41
PID 2132 wrote to memory of 2608	2132	JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe	41
PID 2544 wrote to memory of 2704	2544	rajrfxfo.exe	42
PID 2544 wrote to memory of 2704	2544	rajrfxfo.exe	42
PID 2544 wrote to memory of 2704	2544	rajrfxfo.exe	42
PID 2544 wrote to memory of 2704	2544	rajrfxfo.exe	42
PID 2544 wrote to memory of 2704	2544	rajrfxfo.exe	42
PID 2544 wrote to memory of 2704	2544	rajrfxfo.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kikugurx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rajrfxfo.exe" C:\Windows\SysWOW64\kikugurx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kikugurx binPath= "C:\Windows\SysWOW64\kikugurx\rajrfxfo.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1968
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kikugurx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2556
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kikugurx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2788
- 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:2608

C:\Windows\SysWOW64\kikugurx\rajrfxfo.exe
C:\Windows\SysWOW64\kikugurx\rajrfxfo.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce33598db50778472c581ccba07238199d6d3473a4d3a76570225e378dd80bec.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2544
- 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:2704

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\rajrfxfo.exe

Filesize
13.0MB

MD5
2a2ffd1e27a6df0fd8b557824091c591

SHA1
e0f3b422568c05ecb19d0c54691a4fbbb255b847

SHA256
028c0d3abb9baf50577c647bce7aa139c2acaa279e5100eb1456c9811844ea9d

SHA512
04ed7c2eebfffbdabe4b2b985e2f57e2e32a4d9084533b7c4acb851d611ce7dc8991f5379c7847431158d8acc59ccd0c89d3af17273c19145daf5240074eb82f

Download Submit
memory/2132-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2132-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2132-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2132-6-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2132-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2132-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2132-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2544-16-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2704-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2704-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2704-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2704-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2704-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads