tofsee | 4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23

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
25/12/2024, 18:30

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General

Target

JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe
Size

187KB
MD5

c2a778630a2fc539bb9513aea545263d
SHA1

922e32d1aec7cb7bde493f5cb83514478a714cd3
SHA256

4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23
SHA512

e0b291ab6b976e4a7e44d221c058edbd4861135865e56e54f6c98437fbf1aa095eda70fbcdc40b72951b119285f225ecd8f11a47ba1814bc7472f1a7379c9cfb
SSDEEP

3072:y7nkTvI0pZG/xfCqaSvAt7XLh27C+Eo3Ey0slcok9pZa9uD6Vdyhkf:S+vI0pZG/xfCqBA92OGcok9wVf

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\aeczqdgr = "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
2564	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\aeczqdgr\ImagePath = "C:\\Windows\\SysWOW64\\aeczqdgr\\fyjzkhat.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3044	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2548	fyjzkhat.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2548 set thread context of 3044	2548	fyjzkhat.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2712	sc.exe
2708	sc.exe
2636	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fyjzkhat.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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 2144 wrote to memory of 2804	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	30
PID 2144 wrote to memory of 2804	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	30
PID 2144 wrote to memory of 2804	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	30
PID 2144 wrote to memory of 2804	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	30
PID 2144 wrote to memory of 2936	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	32
PID 2144 wrote to memory of 2936	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	32
PID 2144 wrote to memory of 2936	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	32
PID 2144 wrote to memory of 2936	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	32
PID 2144 wrote to memory of 2708	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	34
PID 2144 wrote to memory of 2708	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	34
PID 2144 wrote to memory of 2708	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	34
PID 2144 wrote to memory of 2708	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	34
PID 2144 wrote to memory of 2636	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	36
PID 2144 wrote to memory of 2636	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	36
PID 2144 wrote to memory of 2636	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	36
PID 2144 wrote to memory of 2636	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	36
PID 2144 wrote to memory of 2712	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	38
PID 2144 wrote to memory of 2712	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	38
PID 2144 wrote to memory of 2712	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	38
PID 2144 wrote to memory of 2712	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	38
PID 2144 wrote to memory of 2564	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	41
PID 2144 wrote to memory of 2564	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	41
PID 2144 wrote to memory of 2564	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	41
PID 2144 wrote to memory of 2564	2144	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	41
PID 2548 wrote to memory of 3044	2548	fyjzkhat.exe	43
PID 2548 wrote to memory of 3044	2548	fyjzkhat.exe	43
PID 2548 wrote to memory of 3044	2548	fyjzkhat.exe	43
PID 2548 wrote to memory of 3044	2548	fyjzkhat.exe	43
PID 2548 wrote to memory of 3044	2548	fyjzkhat.exe	43
PID 2548 wrote to memory of 3044	2548	fyjzkhat.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2144
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\aeczqdgr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fyjzkhat.exe" C:\Windows\SysWOW64\aeczqdgr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create aeczqdgr binPath= "C:\Windows\SysWOW64\aeczqdgr\fyjzkhat.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description aeczqdgr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2636
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start aeczqdgr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- 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:2564

C:\Windows\SysWOW64\aeczqdgr\fyjzkhat.exe
C:\Windows\SysWOW64\aeczqdgr\fyjzkhat.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2548
- 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:3044

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\fyjzkhat.exe

Filesize
11.6MB

MD5
46469d25be3527ab477a497317762ff6

SHA1
04246952c0daca381f3bbdccd91064156038d64c

SHA256
fde8be232b8a4ea5715f36b193eeeae953e901b05f91e5a66c8d965f2eca3040

SHA512
c2599186e92fdda90584410d0b829f7bc35d1bf2c46f3350ccb2f8f7d5510ba16def66a7a99ea80107e9e3c872ccfc59fad7187f4f21fa5accde17452b8007f3

Download Submit
memory/2144-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2144-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2144-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2144-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2144-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2144-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2144-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2548-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3044-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3044-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3044-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3044-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3044-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads