tofsee | 8dfa3d272288ee3e4fdfa6f4c04094dd9e9bc955d62a8dbe99b28b09f35244b8

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 18:49

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General

Target

JaffaCakes118_7399178568161f5a5da8b869e9736716.exe
Size

10.5MB
MD5

7399178568161f5a5da8b869e9736716
SHA1

08554ea0af56007bb7d46125db489632f83ef166
SHA256

8dfa3d272288ee3e4fdfa6f4c04094dd9e9bc955d62a8dbe99b28b09f35244b8
SHA512

44e4b3b7f7b5a83f0ac02b98b62da54a333f12a9400cdfb0765abb26ed35556b3a7da46ba8da4298170e97263bb58eab6fe45249e4293c069c242bd022f4811c
SSDEEP

12288:jnWdwQB3a1ZAXYlVR7jbMviJvK3SRL/R/R/R/R/R/R/R/R/R/R/R/R/R/R/R/R/1:jnWdFB3a1ZLlsviJv

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\gtmzwqsc = "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
3012	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\gtmzwqsc\ImagePath = "C:\\Windows\\SysWOW64\\gtmzwqsc\\buiumgiv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2796	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2876	buiumgiv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2876 set thread context of 2796	2876	buiumgiv.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2848	sc.exe
2872	sc.exe
2992	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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	buiumgiv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 2824	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	29
PID 2336 wrote to memory of 2824	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	29
PID 2336 wrote to memory of 2824	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	29
PID 2336 wrote to memory of 2824	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	29
PID 2336 wrote to memory of 2156	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	31
PID 2336 wrote to memory of 2156	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	31
PID 2336 wrote to memory of 2156	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	31
PID 2336 wrote to memory of 2156	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	31
PID 2336 wrote to memory of 2872	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	33
PID 2336 wrote to memory of 2872	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	33
PID 2336 wrote to memory of 2872	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	33
PID 2336 wrote to memory of 2872	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	33
PID 2336 wrote to memory of 2992	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	35
PID 2336 wrote to memory of 2992	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	35
PID 2336 wrote to memory of 2992	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	35
PID 2336 wrote to memory of 2992	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	35
PID 2336 wrote to memory of 2848	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	37
PID 2336 wrote to memory of 2848	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	37
PID 2336 wrote to memory of 2848	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	37
PID 2336 wrote to memory of 2848	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	37
PID 2336 wrote to memory of 3012	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	40
PID 2336 wrote to memory of 3012	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	40
PID 2336 wrote to memory of 3012	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	40
PID 2336 wrote to memory of 3012	2336	JaffaCakes118_7399178568161f5a5da8b869e9736716.exe	40
PID 2876 wrote to memory of 2796	2876	buiumgiv.exe	42
PID 2876 wrote to memory of 2796	2876	buiumgiv.exe	42
PID 2876 wrote to memory of 2796	2876	buiumgiv.exe	42
PID 2876 wrote to memory of 2796	2876	buiumgiv.exe	42
PID 2876 wrote to memory of 2796	2876	buiumgiv.exe	42
PID 2876 wrote to memory of 2796	2876	buiumgiv.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7399178568161f5a5da8b869e9736716.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7399178568161f5a5da8b869e9736716.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gtmzwqsc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2824
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\buiumgiv.exe" C:\Windows\SysWOW64\gtmzwqsc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2156
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gtmzwqsc binPath= "C:\Windows\SysWOW64\gtmzwqsc\buiumgiv.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7399178568161f5a5da8b869e9736716.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gtmzwqsc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2992
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gtmzwqsc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2848
- 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:3012

C:\Windows\SysWOW64\gtmzwqsc\buiumgiv.exe
C:\Windows\SysWOW64\gtmzwqsc\buiumgiv.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7399178568161f5a5da8b869e9736716.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2876
- 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:2796

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\buiumgiv.exe

Filesize
12.2MB

MD5
9bd4783b6c9eddce62d897426cd97f49

SHA1
1b313c7ab728122fe8a42c053201ac59ddee1411

SHA256
6fd7c859f50a1d67d512b9055fa1c433fb379b31a3ee7a86a165c3a9af06e517

SHA512
eb688c42769368558b16389eb609ceaad3a72b1a8f2fd375fbfa1e087dbb6724acc77554cfb38e4540537d3057749418b3ff36e1d54cda53560cfed53412d0af

Download Submit
memory/2336-8-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/2336-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2336-2-0x00000000002B0000-0x00000000002C3000-memory.dmp

Filesize
76KB

Download
memory/2336-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2336-9-0x00000000002B0000-0x00000000002C3000-memory.dmp

Filesize
76KB

Download
memory/2336-1-0x0000000000810000-0x0000000000910000-memory.dmp

Filesize
1024KB

Download
memory/2796-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2796-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2796-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2796-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2796-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2876-17-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads