tofsee | be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76

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
21-12-2024 20:46

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General

Target

JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe
Size

342KB
MD5

1518b03ff2731322f2bcf759be3b9d41
SHA1

fc8eee7fe594cbfc5c827d76b56717df1e27b94c
SHA256

be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76
SHA512

da5b53754940e1df8a63607af8c8f8d2bf4cec4e12744efcf531aa94a62790dd29f73f5f9fedb618f331953d238acd08447fa6c4054c3d2c20814b6905f544c9
SSDEEP

6144:zEwxmgAdC3H8HkHwuIpk4BUoBJnoT7Y6JhAr4Bk:zb5UC3hQuIK4BUoBJnoT7YB4B

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\ecfwnqvt = "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
2780	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\ecfwnqvt\ImagePath = "C:\\Windows\\SysWOW64\\ecfwnqvt\\ibwimbm.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2620	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3004	ibwimbm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3004 set thread context of 2620	3004	ibwimbm.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2724	sc.exe
2808	sc.exe
2728	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.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	ibwimbm.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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 2172	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	30
PID 2108 wrote to memory of 2172	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	30
PID 2108 wrote to memory of 2172	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	30
PID 2108 wrote to memory of 2172	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	30
PID 2108 wrote to memory of 1948	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	32
PID 2108 wrote to memory of 1948	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	32
PID 2108 wrote to memory of 1948	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	32
PID 2108 wrote to memory of 1948	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	32
PID 2108 wrote to memory of 2808	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	34
PID 2108 wrote to memory of 2808	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	34
PID 2108 wrote to memory of 2808	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	34
PID 2108 wrote to memory of 2808	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	34
PID 2108 wrote to memory of 2728	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	36
PID 2108 wrote to memory of 2728	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	36
PID 2108 wrote to memory of 2728	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	36
PID 2108 wrote to memory of 2728	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	36
PID 2108 wrote to memory of 2724	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	38
PID 2108 wrote to memory of 2724	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	38
PID 2108 wrote to memory of 2724	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	38
PID 2108 wrote to memory of 2724	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	38
PID 2108 wrote to memory of 2780	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	42
PID 2108 wrote to memory of 2780	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	42
PID 2108 wrote to memory of 2780	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	42
PID 2108 wrote to memory of 2780	2108	JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe	42
PID 3004 wrote to memory of 2620	3004	ibwimbm.exe	44
PID 3004 wrote to memory of 2620	3004	ibwimbm.exe	44
PID 3004 wrote to memory of 2620	3004	ibwimbm.exe	44
PID 3004 wrote to memory of 2620	3004	ibwimbm.exe	44
PID 3004 wrote to memory of 2620	3004	ibwimbm.exe	44
PID 3004 wrote to memory of 2620	3004	ibwimbm.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ecfwnqvt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2172
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ibwimbm.exe" C:\Windows\SysWOW64\ecfwnqvt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1948
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ecfwnqvt binPath= "C:\Windows\SysWOW64\ecfwnqvt\ibwimbm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ecfwnqvt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2728
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ecfwnqvt
  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:2780

C:\Windows\SysWOW64\ecfwnqvt\ibwimbm.exe
C:\Windows\SysWOW64\ecfwnqvt\ibwimbm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_be694b37daf2d5b9b8491a0289a192fe18e05d2b50f98376b27c78ef146a6b76.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3004
- 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:2620

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\ibwimbm.exe

Filesize
10.0MB

MD5
a03cf85160d7dfd1c816db5d89ae5466

SHA1
3974e3577b052463665aa68cad14586a8bdcab29

SHA256
1ebc8b535e62af659adbbf8c492af7da35fb95b5347545052dd84937de006a78

SHA512
c771f585678c4ffd5cbe1b665ef1036e14bb4e26bb6cf954417d69d8a7a552f4703eb28fcebafef69de8531620e9934ebd88f538637ce352c1a9d74f46c534a7

Download Submit
memory/2108-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2108-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2108-1-0x0000000000AD0000-0x0000000000BD0000-memory.dmp

Filesize
1024KB

Download
memory/2108-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2108-9-0x0000000000AD0000-0x0000000000BD0000-memory.dmp

Filesize
1024KB

Download
memory/2108-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2108-7-0x0000000000400000-0x00000000008FA000-memory.dmp

Filesize
5.0MB

Download
memory/2620-18-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2620-15-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2620-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2620-12-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2620-19-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/3004-16-0x0000000000400000-0x00000000008FA000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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