tofsee | cf9c45694ab7273150895ccd26f843d983702b838b11df8d517378705c5b69e9

Analysis

max time kernel
141s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-01-2025 18:45

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General

Target

2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe
Size

10.8MB
MD5

c2ba4ec1ff02e603663c83ae177f37cb
SHA1

12da4811e21c55fc6d49150f7bd1f70e25d1e349
SHA256

cf9c45694ab7273150895ccd26f843d983702b838b11df8d517378705c5b69e9
SHA512

4566a08e2fcb953efa778077d695f85b7d50dabdf3b266e1dd959481eaef7704724e6267f7f2ca8fd914129045c61670ae524b577e95f78a4d83bf104880dd0a
SSDEEP

49152:WqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:WqtYc3

Score

10^/10

tofsee defense_evasion discovery 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

defense_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\elnpfkts = "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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2220	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\elnpfkts\ImagePath = "C:\\Windows\\SysWOW64\\elnpfkts\\chrmgspr.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2872	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2768	chrmgspr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2768 set thread context of 2872	2768	chrmgspr.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
1036	sc.exe
2236	sc.exe
2852	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	chrmgspr.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	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2076 wrote to memory of 3012	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	30
PID 2076 wrote to memory of 3012	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	30
PID 2076 wrote to memory of 3012	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	30
PID 2076 wrote to memory of 3012	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	30
PID 2076 wrote to memory of 2260	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	32
PID 2076 wrote to memory of 2260	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	32
PID 2076 wrote to memory of 2260	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	32
PID 2076 wrote to memory of 2260	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	32
PID 2076 wrote to memory of 1036	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	34
PID 2076 wrote to memory of 1036	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	34
PID 2076 wrote to memory of 1036	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	34
PID 2076 wrote to memory of 1036	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	34
PID 2076 wrote to memory of 2236	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	36
PID 2076 wrote to memory of 2236	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	36
PID 2076 wrote to memory of 2236	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	36
PID 2076 wrote to memory of 2236	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	36
PID 2076 wrote to memory of 2852	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	39
PID 2076 wrote to memory of 2852	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	39
PID 2076 wrote to memory of 2852	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	39
PID 2076 wrote to memory of 2852	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	39
PID 2768 wrote to memory of 2872	2768	chrmgspr.exe	42
PID 2768 wrote to memory of 2872	2768	chrmgspr.exe	42
PID 2768 wrote to memory of 2872	2768	chrmgspr.exe	42
PID 2768 wrote to memory of 2872	2768	chrmgspr.exe	42
PID 2768 wrote to memory of 2872	2768	chrmgspr.exe	42
PID 2768 wrote to memory of 2872	2768	chrmgspr.exe	42
PID 2076 wrote to memory of 2220	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	43
PID 2076 wrote to memory of 2220	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	43
PID 2076 wrote to memory of 2220	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	43
PID 2076 wrote to memory of 2220	2076	2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2076
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\elnpfkts\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\chrmgspr.exe" C:\Windows\SysWOW64\elnpfkts\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2260
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create elnpfkts binPath= "C:\Windows\SysWOW64\elnpfkts\chrmgspr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description elnpfkts "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2236
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start elnpfkts
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2852
- 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:2220

C:\Windows\SysWOW64\elnpfkts\chrmgspr.exe
C:\Windows\SysWOW64\elnpfkts\chrmgspr.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-22_c2ba4ec1ff02e603663c83ae177f37cb_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2768
- 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:2872

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\chrmgspr.exe

Filesize
11.4MB

MD5
479648eb2561691a81eb4c5a850e48a0

SHA1
4d3d825f85dcb0901a219add3176a686fdc6a72b

SHA256
b147e4cc2fce55d970a4a30890b0818c0b46cc33fd16cb0f33451d2ff50c4baf

SHA512
6214f07b23740e4204c3b6e9b20b5e76098a7fd4164d9491965a2427eb3817bec29e3a9642bea673b8128bd4e029d4c84b50bd099530238fab8baab21c5a4dd1

Download Submit
memory/2076-16-0x0000000002F30000-0x0000000003030000-memory.dmp

Filesize
1024KB

Download
memory/2076-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2076-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2076-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2076-1-0x0000000002F30000-0x0000000003030000-memory.dmp

Filesize
1024KB

Download
memory/2076-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2076-14-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2768-12-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2872-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2872-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2872-8-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2872-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2872-19-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads