tofsee | ccc58007409f535edc28572d1bcffa29f79b59aa490dacec2dc1a6993bbf5d94

General

Target

2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe
Size

15.0MB
MD5

70a9b779063ef366ac13e80466ff8958
SHA1

5a1decdda5efdeee7ec142524899220b03fc5f5a
SHA256

ccc58007409f535edc28572d1bcffa29f79b59aa490dacec2dc1a6993bbf5d94
SHA512

dace2fcbba9d0afa688966af303f7243a5c402a6f0524ae3d99301b133a698ae632d9ce7c719ac1b219a2f60435555e969bf4f39d2483bb3ff81f29660d8c478
SSDEEP

49152:4qE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP:4qtYc3

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
3936	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\juomcfsy\ImagePath = "C:\\Windows\\SysWOW64\\juomcfsy\\sedrcmuo.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4003209913-3868522715-854928974-1000\Control Panel\International\Geo\Nation	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe

Deletes itself 1 IoCs

pid	Process
5020	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2096	sedrcmuo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2096 set thread context of 5020	2096	sedrcmuo.exe	99

Launches sc.exe 3 IoCs

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

pid	Process
3960	sc.exe
4664	sc.exe
4900	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1216	2180	WerFault.exe	82
1244	2096	WerFault.exe	98

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	cmd.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	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.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	sedrcmuo.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 3412	2180	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe	86
PID 2180 wrote to memory of 3412	2180	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe	86
PID 2180 wrote to memory of 3412	2180	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe	86
PID 2180 wrote to memory of 3588	2180	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe	88
PID 2180 wrote to memory of 3588	2180	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe	88
PID 2180 wrote to memory of 3588	2180	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe	88
PID 2180 wrote to memory of 3960	2180	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe	91
PID 2180 wrote to memory of 3960	2180	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe	91
PID 2180 wrote to memory of 3960	2180	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe	91
PID 2180 wrote to memory of 4664	2180	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe	93
PID 2180 wrote to memory of 4664	2180	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe	93
PID 2180 wrote to memory of 4664	2180	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe	93
PID 2180 wrote to memory of 4900	2180	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe	96
PID 2180 wrote to memory of 4900	2180	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe	96
PID 2180 wrote to memory of 4900	2180	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe	96
PID 2096 wrote to memory of 5020	2096	sedrcmuo.exe	99
PID 2096 wrote to memory of 5020	2096	sedrcmuo.exe	99
PID 2096 wrote to memory of 5020	2096	sedrcmuo.exe	99
PID 2096 wrote to memory of 5020	2096	sedrcmuo.exe	99
PID 2096 wrote to memory of 5020	2096	sedrcmuo.exe	99
PID 2180 wrote to memory of 3936	2180	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe	101
PID 2180 wrote to memory of 3936	2180	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe	101
PID 2180 wrote to memory of 3936	2180	2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\juomcfsy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3412
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sedrcmuo.exe" C:\Windows\SysWOW64\juomcfsy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3588
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create juomcfsy binPath= "C:\Windows\SysWOW64\juomcfsy\sedrcmuo.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description juomcfsy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4664
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start juomcfsy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4900
- 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:3936
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2180 -s 1192
  2⤵
  - Program crash
  PID:1216

C:\Windows\SysWOW64\juomcfsy\sedrcmuo.exe
C:\Windows\SysWOW64\juomcfsy\sedrcmuo.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_70a9b779063ef366ac13e80466ff8958_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2096
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5020
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 512
  2⤵
  - Program crash
  PID:1244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2096 -ip 2096
1⤵
PID:1016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2180 -ip 2180
1⤵
PID:3804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\sedrcmuo.exe

Filesize
14.8MB

MD5
2e5664311b1a24adbc8f6fa546b308df

SHA1
b1abff2e336f79fa96d086f76a2034117a271a06

SHA256
73afe44831c19bf3e5d16ebbda17d91e8da4c34b3438aad1c3c615ef24d7e458

SHA512
e529912b4a632456c6f81d7d4120fa3ae56baa051d6161f0318025bfd6714d304dc98ae8faa10f99fbcc718b12b3615a58d6662037de2d1702db9a45e332da33

Download Submit
memory/2096-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2180-1-0x00000000030E0000-0x00000000031E0000-memory.dmp

Filesize
1024KB

Download
memory/2180-2-0x0000000002FF0000-0x0000000003003000-memory.dmp

Filesize
76KB

Download
memory/2180-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2180-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2180-12-0x0000000002FF0000-0x0000000003003000-memory.dmp

Filesize
76KB

Download
memory/2180-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/5020-8-0x0000000000C90000-0x0000000000CA5000-memory.dmp

Filesize
84KB

Download
memory/5020-14-0x0000000000C90000-0x0000000000CA5000-memory.dmp

Filesize
84KB

Download
memory/5020-15-0x0000000000C90000-0x0000000000CA5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads