tofsee | 9ec3f86d763f85d37b64cec67cabe5a02420d653890b9ece64158b7540ef41fe

General

Target

2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe
Size

14.5MB
MD5

3f4c4c314a9e1e3500b0113f8815655c
SHA1

f364aebe26f744c276f7944bd52c57eae67a596e
SHA256

9ec3f86d763f85d37b64cec67cabe5a02420d653890b9ece64158b7540ef41fe
SHA512

3e0bad40bd20ddead45e2571760049d2044fe3ebae59ac5efd3d8b5bb073d5f56492320002eda9313ef202fff254a58956ddaf8e4f29bd09997441ea07598dec
SSDEEP

49152:dqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:dqtYc3

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
2384	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\qiilfzxf\ImagePath = "C:\\Windows\\SysWOW64\\qiilfzxf\\cajktpea.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-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\International\Geo\Nation	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe

Deletes itself 1 IoCs

pid	Process
2416	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
216	cajktpea.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 216 set thread context of 2416	216	cajktpea.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
3292	sc.exe
4512	sc.exe
976	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
4016	216	WerFault.exe	96
1628	4584	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	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.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	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	cajktpea.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4584 wrote to memory of 3540	4584	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe	86
PID 4584 wrote to memory of 3540	4584	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe	86
PID 4584 wrote to memory of 3540	4584	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe	86
PID 4584 wrote to memory of 4028	4584	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe	88
PID 4584 wrote to memory of 4028	4584	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe	88
PID 4584 wrote to memory of 4028	4584	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe	88
PID 4584 wrote to memory of 3292	4584	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe	90
PID 4584 wrote to memory of 3292	4584	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe	90
PID 4584 wrote to memory of 3292	4584	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe	90
PID 4584 wrote to memory of 4512	4584	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe	92
PID 4584 wrote to memory of 4512	4584	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe	92
PID 4584 wrote to memory of 4512	4584	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe	92
PID 4584 wrote to memory of 976	4584	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe	94
PID 4584 wrote to memory of 976	4584	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe	94
PID 4584 wrote to memory of 976	4584	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe	94
PID 216 wrote to memory of 2416	216	cajktpea.exe	97
PID 216 wrote to memory of 2416	216	cajktpea.exe	97
PID 216 wrote to memory of 2416	216	cajktpea.exe	97
PID 216 wrote to memory of 2416	216	cajktpea.exe	97
PID 216 wrote to memory of 2416	216	cajktpea.exe	97
PID 4584 wrote to memory of 2384	4584	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe	101
PID 4584 wrote to memory of 2384	4584	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe	101
PID 4584 wrote to memory of 2384	4584	2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4584
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qiilfzxf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3540
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cajktpea.exe" C:\Windows\SysWOW64\qiilfzxf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4028
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qiilfzxf binPath= "C:\Windows\SysWOW64\qiilfzxf\cajktpea.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3292
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qiilfzxf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4512
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qiilfzxf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:976
- 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:2384
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4584 -s 676
  2⤵
  - Program crash
  PID:1628

C:\Windows\SysWOW64\qiilfzxf\cajktpea.exe
C:\Windows\SysWOW64\qiilfzxf\cajktpea.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_3f4c4c314a9e1e3500b0113f8815655c_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:216
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2416
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 216 -s 512
  2⤵
  - Program crash
  PID:4016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 216 -ip 216
1⤵
PID:4456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4584 -ip 4584
1⤵
PID:5016

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\cajktpea.exe

Filesize
12.2MB

MD5
6bed81a42b4fdbcbc8b8938e730a6e78

SHA1
9d7bcc0c2b383e29bc4469a81c5b468014228073

SHA256
38db290c8db6f859175ad2b69589a071e79be79a96af0380bb5e0972f7a5d404

SHA512
a81d0e7827d0f21c7369f0bc90c06a84b291dd9e54b2ea590815c7c850c01be7e8b4181afc473455c8a9b1a64f45804bcc710e5787c4c41ce8649f456c26a7ff

Download Submit
memory/216-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2416-8-0x0000000000E00000-0x0000000000E15000-memory.dmp

Filesize
84KB

Download
memory/2416-14-0x0000000000E00000-0x0000000000E15000-memory.dmp

Filesize
84KB

Download
memory/2416-15-0x0000000000E00000-0x0000000000E15000-memory.dmp

Filesize
84KB

Download
memory/4584-1-0x0000000002E50000-0x0000000002F50000-memory.dmp

Filesize
1024KB

Download
memory/4584-2-0x0000000002E30000-0x0000000002E43000-memory.dmp

Filesize
76KB

Download
memory/4584-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4584-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4584-12-0x0000000002E30000-0x0000000002E43000-memory.dmp

Filesize
76KB

Download
memory/4584-11-0x0000000000400000-0x0000000002DC3000-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