tofsee | ddd3d9d9266d15d5d25ba601f36f9bdd888862caf3b3487cf83502a274b6c87e

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-11-2024 06:56

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General

Target

99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe
Size

10.1MB
MD5

99e8a071ecaa06ac8d1953471dd2988c
SHA1

52907a9b570d1c43dfa27e8e93347abdda72ab34
SHA256

ddd3d9d9266d15d5d25ba601f36f9bdd888862caf3b3487cf83502a274b6c87e
SHA512

080b4ee8bd25d021cee590dd313f4e9e13dd1263da7e15459a06ca81f38583a2a1949ff0ca40afd1d3a9cb4cb726f123661f4a395d9af67ccad84fe00d95187d
SSDEEP

49152:nT81MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMD:nT8

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
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\nsplqkcc = "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
2684	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\nsplqkcc\ImagePath = "C:\\Windows\\SysWOW64\\nsplqkcc\\nfkkrjdh.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2760	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2868	nfkkrjdh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2868 set thread context of 2760	2868	nfkkrjdh.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2816	sc.exe
2088	sc.exe
2108	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	nfkkrjdh.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 1664	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	31
PID 1752 wrote to memory of 1664	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	31
PID 1752 wrote to memory of 1664	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	31
PID 1752 wrote to memory of 1664	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	31
PID 1752 wrote to memory of 2036	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	33
PID 1752 wrote to memory of 2036	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	33
PID 1752 wrote to memory of 2036	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	33
PID 1752 wrote to memory of 2036	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	33
PID 1752 wrote to memory of 2088	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	35
PID 1752 wrote to memory of 2088	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	35
PID 1752 wrote to memory of 2088	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	35
PID 1752 wrote to memory of 2088	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	35
PID 1752 wrote to memory of 2108	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	37
PID 1752 wrote to memory of 2108	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	37
PID 1752 wrote to memory of 2108	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	37
PID 1752 wrote to memory of 2108	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	37
PID 1752 wrote to memory of 2816	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	39
PID 1752 wrote to memory of 2816	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	39
PID 1752 wrote to memory of 2816	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	39
PID 1752 wrote to memory of 2816	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	39
PID 1752 wrote to memory of 2684	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	42
PID 1752 wrote to memory of 2684	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	42
PID 1752 wrote to memory of 2684	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	42
PID 1752 wrote to memory of 2684	1752	99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe	42
PID 2868 wrote to memory of 2760	2868	nfkkrjdh.exe	44
PID 2868 wrote to memory of 2760	2868	nfkkrjdh.exe	44
PID 2868 wrote to memory of 2760	2868	nfkkrjdh.exe	44
PID 2868 wrote to memory of 2760	2868	nfkkrjdh.exe	44
PID 2868 wrote to memory of 2760	2868	nfkkrjdh.exe	44
PID 2868 wrote to memory of 2760	2868	nfkkrjdh.exe	44

C:\Users\Admin\AppData\Local\Temp\99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nsplqkcc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1664
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nfkkrjdh.exe" C:\Windows\SysWOW64\nsplqkcc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nsplqkcc binPath= "C:\Windows\SysWOW64\nsplqkcc\nfkkrjdh.exe /d\"C:\Users\Admin\AppData\Local\Temp\99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2088
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nsplqkcc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2108
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nsplqkcc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2816
- 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:2684

C:\Windows\SysWOW64\nsplqkcc\nfkkrjdh.exe
C:\Windows\SysWOW64\nsplqkcc\nfkkrjdh.exe /d"C:\Users\Admin\AppData\Local\Temp\99e8a071ecaa06ac8d1953471dd2988c_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2868
- 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:2760

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\nfkkrjdh.exe

Filesize
11.1MB

MD5
2bc64151c292bbab83acc762f5c33039

SHA1
bc179bebef39c99a76eede0d655b0d4a45b64566

SHA256
ad3904d9230dd0fe087e75b129e4c96aeb8d37ffefd8d797768883060cc56a13

SHA512
f53a62f2f549c28791fb6e329e27ac2b9d108f7cc2b87859463a3e9551db08da0a51b9bf3c0a2809dff23c14c1f5af97bdb8fc0ec7edea279dbc4b89b87249c6

Download Submit
memory/1752-3-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1752-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1752-1-0x00000000008D0000-0x00000000009D0000-memory.dmp

Filesize
1024KB

Download
memory/1752-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1752-9-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2760-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2760-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2760-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2760-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2760-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2868-15-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads