tofsee | 18ebe3f7d3f848fe6037aff6c04c6967a58dd1096357a4044a5fa81035f35d02

Analysis

max time kernel
145s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26/12/2024, 19:49

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General

Target

2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe
Size

11.1MB
MD5

46bbbdfd4a666961635714db78cea599
SHA1

833ce3ae49ccde9035eebf0b064bc7e9c1642217
SHA256

18ebe3f7d3f848fe6037aff6c04c6967a58dd1096357a4044a5fa81035f35d02
SHA512

376915dedd4841e6dc6b7c4461d14aefd8737d549853f929a8272c3a63dfbe00901645cc0146008716c1ccf99ee07e6ca74b168c813bbda69609af984d2bd9db
SSDEEP

3072:uLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:3OMdRQr7OB0ypmMXnl8XEPM3noSWOC

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.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\kijcxpfg = "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
3036	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\kijcxpfg\ImagePath = "C:\\Windows\\SysWOW64\\kijcxpfg\\conbmwey.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2568	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2604	conbmwey.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2604 set thread context of 2568	2604	conbmwey.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2712	sc.exe
2636	sc.exe
3032	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	conbmwey.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2792	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	31
PID 2084 wrote to memory of 2792	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	31
PID 2084 wrote to memory of 2792	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	31
PID 2084 wrote to memory of 2792	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	31
PID 2084 wrote to memory of 2776	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	33
PID 2084 wrote to memory of 2776	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	33
PID 2084 wrote to memory of 2776	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	33
PID 2084 wrote to memory of 2776	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	33
PID 2084 wrote to memory of 2712	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	35
PID 2084 wrote to memory of 2712	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	35
PID 2084 wrote to memory of 2712	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	35
PID 2084 wrote to memory of 2712	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	35
PID 2084 wrote to memory of 2636	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	37
PID 2084 wrote to memory of 2636	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	37
PID 2084 wrote to memory of 2636	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	37
PID 2084 wrote to memory of 2636	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	37
PID 2084 wrote to memory of 3032	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	39
PID 2084 wrote to memory of 3032	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	39
PID 2084 wrote to memory of 3032	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	39
PID 2084 wrote to memory of 3032	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	39
PID 2604 wrote to memory of 2568	2604	conbmwey.exe	42
PID 2604 wrote to memory of 2568	2604	conbmwey.exe	42
PID 2604 wrote to memory of 2568	2604	conbmwey.exe	42
PID 2604 wrote to memory of 2568	2604	conbmwey.exe	42
PID 2604 wrote to memory of 2568	2604	conbmwey.exe	42
PID 2604 wrote to memory of 2568	2604	conbmwey.exe	42
PID 2084 wrote to memory of 3036	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	43
PID 2084 wrote to memory of 3036	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	43
PID 2084 wrote to memory of 3036	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	43
PID 2084 wrote to memory of 3036	2084	2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kijcxpfg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2792
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\conbmwey.exe" C:\Windows\SysWOW64\kijcxpfg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kijcxpfg binPath= "C:\Windows\SysWOW64\kijcxpfg\conbmwey.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kijcxpfg "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 kijcxpfg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3032
- 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:3036

C:\Windows\SysWOW64\kijcxpfg\conbmwey.exe
C:\Windows\SysWOW64\kijcxpfg\conbmwey.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-26_46bbbdfd4a666961635714db78cea599_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2604
- 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:2568

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\conbmwey.exe

Filesize
14.5MB

MD5
7abc62f3ec6c4f2a6746e5855b61c4c6

SHA1
f24502e1b50ebf6900510cbb4787b12f08b7d118

SHA256
a49b6634857b4998953937c0356646e639a0d0b1cd4f072aae9040cb06b016e8

SHA512
89ff33ba07c2949d7bbc3b4782ea08a6e2e5413566b2549edf94b1aa9f498d393509c3945706f87fdd25485a1b15dc7cd855ad984cf46e33836715abbf4c9c98

Download Submit
memory/2084-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2084-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2084-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2084-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2084-1-0x00000000004F0000-0x00000000005F0000-memory.dmp

Filesize
1024KB

Download
memory/2084-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2568-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2568-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2568-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2568-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2568-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2604-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads