tofsee | ddf834663f80601bbcb921d17ef5904d405a28ff68fbf21ce521794c0f4a34f4

General

Target

2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe
Size

13.2MB
MD5

02577feabbae5a6cced18fe55be24b83
SHA1

375768302cfbf7082178ba7f02cb1589d4c52667
SHA256

ddf834663f80601bbcb921d17ef5904d405a28ff68fbf21ce521794c0f4a34f4
SHA512

77c634c4b339387c0c16bc69f3c49dc1b2fbae3bc1a2ef78153d2b316710f285345692b646a9da1f0e6da7c7f8d33c421134a8b6cfefca7c239f74ffbaf025e8
SSDEEP

49152:oqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:oqtYc3

Score

10^/10

tofsee discovery evasion 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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
880	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\swddmiup\ImagePath = "C:\\Windows\\SysWOW64\\swddmiup\\eefqlmks.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe

Deletes itself 1 IoCs

pid	Process
8	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1392	eefqlmks.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1392 set thread context of 8	1392	eefqlmks.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4172	sc.exe
3292	sc.exe
956	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
2620	1392	WerFault.exe	94
3124	1832	WerFault.exe	82

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	2025-01-17_02577feabbae5a6cced18fe55be24b83_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eefqlmks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1832 wrote to memory of 4652	1832	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe	83
PID 1832 wrote to memory of 4652	1832	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe	83
PID 1832 wrote to memory of 4652	1832	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe	83
PID 1832 wrote to memory of 1660	1832	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe	85
PID 1832 wrote to memory of 1660	1832	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe	85
PID 1832 wrote to memory of 1660	1832	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe	85
PID 1832 wrote to memory of 4172	1832	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe	87
PID 1832 wrote to memory of 4172	1832	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe	87
PID 1832 wrote to memory of 4172	1832	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe	87
PID 1832 wrote to memory of 3292	1832	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe	89
PID 1832 wrote to memory of 3292	1832	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe	89
PID 1832 wrote to memory of 3292	1832	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe	89
PID 1832 wrote to memory of 956	1832	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe	92
PID 1832 wrote to memory of 956	1832	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe	92
PID 1832 wrote to memory of 956	1832	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe	92
PID 1832 wrote to memory of 880	1832	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe	95
PID 1832 wrote to memory of 880	1832	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe	95
PID 1832 wrote to memory of 880	1832	2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe	95
PID 1392 wrote to memory of 8	1392	eefqlmks.exe	98
PID 1392 wrote to memory of 8	1392	eefqlmks.exe	98
PID 1392 wrote to memory of 8	1392	eefqlmks.exe	98
PID 1392 wrote to memory of 8	1392	eefqlmks.exe	98
PID 1392 wrote to memory of 8	1392	eefqlmks.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1832
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\swddmiup\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eefqlmks.exe" C:\Windows\SysWOW64\swddmiup\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1660
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create swddmiup binPath= "C:\Windows\SysWOW64\swddmiup\eefqlmks.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4172
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description swddmiup "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3292
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start swddmiup
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:956
- 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:880
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1832 -s 1036
  2⤵
  - Program crash
  PID:3124

C:\Windows\SysWOW64\swddmiup\eefqlmks.exe
C:\Windows\SysWOW64\swddmiup\eefqlmks.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-17_02577feabbae5a6cced18fe55be24b83_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1392
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:8
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1392 -s 560
  2⤵
  - Program crash
  PID:2620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1832 -ip 1832
1⤵
PID:5072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1392 -ip 1392
1⤵
PID:1912

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\eefqlmks.exe

Filesize
13.5MB

MD5
85457779785608685a1ce5da07672701

SHA1
2fcc99b3645d691eafbc1f410a1a441bafa8b994

SHA256
4ea62b09eae0fc8df3f4ffda391ef34f6c400aa3b5b801de64df4420c5b5dd60

SHA512
72821ddbdd5d54d8502ee30629f44d3ef8ecd9b7be5c232687be8fda838ca9ee824ce9ceba530cdb125054ba916ecff3f34112d026098a5e41235ff426ac622f

Download Submit
memory/8-8-0x0000000000960000-0x0000000000975000-memory.dmp

Filesize
84KB

Download
memory/8-14-0x0000000000960000-0x0000000000975000-memory.dmp

Filesize
84KB

Download
memory/8-15-0x0000000000960000-0x0000000000975000-memory.dmp

Filesize
84KB

Download
memory/1392-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/1832-1-0x0000000002EF0000-0x0000000002FF0000-memory.dmp

Filesize
1024KB

Download
memory/1832-2-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/1832-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1832-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1832-12-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/1832-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads