tofsee | 9134f3d1adc590ca97d990d7d26f0d20fbf3d82623be83525e4e452a6ed468b3

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-10-2024 19:46

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General

Target

49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe
Size

12.0MB
MD5

49af3bb83fcdf39ea968a2c246903bbc
SHA1

ffe28ac64c0d49e0d2c3feed88167e92510ef3fa
SHA256

9134f3d1adc590ca97d990d7d26f0d20fbf3d82623be83525e4e452a6ed468b3
SHA512

77fbc3b76e16e1a791617d3427b9691e92adf8297ee88f7dc2e262551d005e05a3324ccd345b428860985850c1505b0a84b443b0ad64e703f1e82cd03431d1dd
SSDEEP

12288:Fb22XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX3:d2

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan 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\hnkwbvob = "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
2988	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\hnkwbvob\ImagePath = "C:\\Windows\\SysWOW64\\hnkwbvob\\jzugamqi.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2708	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2860	jzugamqi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2860 set thread context of 2708	2860	jzugamqi.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2372	sc.exe
2244	sc.exe
1244	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	jzugamqi.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 2092	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	30
PID 2356 wrote to memory of 2092	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	30
PID 2356 wrote to memory of 2092	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	30
PID 2356 wrote to memory of 2092	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	30
PID 2356 wrote to memory of 536	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	32
PID 2356 wrote to memory of 536	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	32
PID 2356 wrote to memory of 536	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	32
PID 2356 wrote to memory of 536	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	32
PID 2356 wrote to memory of 2372	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	34
PID 2356 wrote to memory of 2372	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	34
PID 2356 wrote to memory of 2372	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	34
PID 2356 wrote to memory of 2372	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	34
PID 2356 wrote to memory of 2244	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	36
PID 2356 wrote to memory of 2244	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	36
PID 2356 wrote to memory of 2244	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	36
PID 2356 wrote to memory of 2244	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	36
PID 2356 wrote to memory of 1244	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	38
PID 2356 wrote to memory of 1244	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	38
PID 2356 wrote to memory of 1244	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	38
PID 2356 wrote to memory of 1244	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	38
PID 2356 wrote to memory of 2988	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	41
PID 2356 wrote to memory of 2988	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	41
PID 2356 wrote to memory of 2988	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	41
PID 2356 wrote to memory of 2988	2356	49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe	41
PID 2860 wrote to memory of 2708	2860	jzugamqi.exe	44
PID 2860 wrote to memory of 2708	2860	jzugamqi.exe	44
PID 2860 wrote to memory of 2708	2860	jzugamqi.exe	44
PID 2860 wrote to memory of 2708	2860	jzugamqi.exe	44
PID 2860 wrote to memory of 2708	2860	jzugamqi.exe	44
PID 2860 wrote to memory of 2708	2860	jzugamqi.exe	44

C:\Users\Admin\AppData\Local\Temp\49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hnkwbvob\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2092
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jzugamqi.exe" C:\Windows\SysWOW64\hnkwbvob\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hnkwbvob binPath= "C:\Windows\SysWOW64\hnkwbvob\jzugamqi.exe /d\"C:\Users\Admin\AppData\Local\Temp\49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2372
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hnkwbvob "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2244
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hnkwbvob
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1244
- 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:2988

C:\Windows\SysWOW64\hnkwbvob\jzugamqi.exe
C:\Windows\SysWOW64\hnkwbvob\jzugamqi.exe /d"C:\Users\Admin\AppData\Local\Temp\49af3bb83fcdf39ea968a2c246903bbc_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2860
- 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:2708

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\jzugamqi.exe

Filesize
12.9MB

MD5
e092c3d66ee730126185dda54655b6f0

SHA1
437ec7095ebf4d024aa90f18f5bdd441e37b9f6d

SHA256
7c8a2489ee58d7f7ca19e613cb9854a75e4560eb6fdff80af3f8120b5b99367a

SHA512
6035d461aa1fb0d957e16f39b8a183385278b419f3dcaa30776d33d621fd3930bee781c2b052c115c1c0c1c2e618511c66c67b99136a024ede020a1e89368261

Download Submit
memory/2356-8-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/2356-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2356-1-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/2356-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2356-9-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2356-2-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2708-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2708-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2860-16-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads