tofsee | 29b0f91a35ae86daabb6e62bde864cf514549d1d3e9f0fa453521fccd389d51e

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-01-2025 04:07

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General

Target

JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe
Size

13.5MB
MD5

46912015f4e217c84f81982305c8c6d5
SHA1

ba7ccd3f4668126eed2a609eb6ac489e9893b78a
SHA256

29b0f91a35ae86daabb6e62bde864cf514549d1d3e9f0fa453521fccd389d51e
SHA512

83900686d98969d7a00a1b78a3e1f7aeba2b95d8f931f412787a03fd32d87dfbfeb1d0506b2a2190254b0fa88e235264e58374b353d0a5c68f0c299f7782b17e
SSDEEP

49152:fyzapZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZx:fC

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\lhrbwjkj = "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
2744	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\lhrbwjkj\ImagePath = "C:\\Windows\\SysWOW64\\lhrbwjkj\\efdnqjoz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2364	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3012	efdnqjoz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3012 set thread context of 2364	3012	efdnqjoz.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2308	sc.exe
2760	sc.exe
2908	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	cmd.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	efdnqjoz.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	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1588 wrote to memory of 2280	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	30
PID 1588 wrote to memory of 2280	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	30
PID 1588 wrote to memory of 2280	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	30
PID 1588 wrote to memory of 2280	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	30
PID 1588 wrote to memory of 2452	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	32
PID 1588 wrote to memory of 2452	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	32
PID 1588 wrote to memory of 2452	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	32
PID 1588 wrote to memory of 2452	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	32
PID 1588 wrote to memory of 2308	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	34
PID 1588 wrote to memory of 2308	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	34
PID 1588 wrote to memory of 2308	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	34
PID 1588 wrote to memory of 2308	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	34
PID 1588 wrote to memory of 2760	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	36
PID 1588 wrote to memory of 2760	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	36
PID 1588 wrote to memory of 2760	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	36
PID 1588 wrote to memory of 2760	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	36
PID 1588 wrote to memory of 2908	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	38
PID 1588 wrote to memory of 2908	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	38
PID 1588 wrote to memory of 2908	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	38
PID 1588 wrote to memory of 2908	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	38
PID 1588 wrote to memory of 2744	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	41
PID 1588 wrote to memory of 2744	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	41
PID 1588 wrote to memory of 2744	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	41
PID 1588 wrote to memory of 2744	1588	JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe	41
PID 3012 wrote to memory of 2364	3012	efdnqjoz.exe	43
PID 3012 wrote to memory of 2364	3012	efdnqjoz.exe	43
PID 3012 wrote to memory of 2364	3012	efdnqjoz.exe	43
PID 3012 wrote to memory of 2364	3012	efdnqjoz.exe	43
PID 3012 wrote to memory of 2364	3012	efdnqjoz.exe	43
PID 3012 wrote to memory of 2364	3012	efdnqjoz.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1588
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lhrbwjkj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2280
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\efdnqjoz.exe" C:\Windows\SysWOW64\lhrbwjkj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lhrbwjkj binPath= "C:\Windows\SysWOW64\lhrbwjkj\efdnqjoz.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2308
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lhrbwjkj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lhrbwjkj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2908
- 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:2744

C:\Windows\SysWOW64\lhrbwjkj\efdnqjoz.exe
C:\Windows\SysWOW64\lhrbwjkj\efdnqjoz.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46912015f4e217c84f81982305c8c6d5.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3012
- 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:2364

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\efdnqjoz.exe

Filesize
12.2MB

MD5
8866df722548e9308449a4b615123b2c

SHA1
d3d651ed918b29873e4ebef439074d37eadcd34a

SHA256
c380f8fedba163d44abfd4f8ffafea50ca3ae7e6d2676cf00a2d5c9c80caac6c

SHA512
41b3aa80610bc75291fff2e8f879a1e117331906ea795a76e1577a5bf8d24ca6bb2feb027e71ba208d4933d361f1950f22afc403317ffff9eca9610de045884b

Download Submit
memory/1588-8-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/1588-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1588-1-0x0000000001840000-0x0000000001940000-memory.dmp

Filesize
1024KB

Download
memory/1588-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1588-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1588-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2364-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2364-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2364-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2364-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2364-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3012-16-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads