tofsee | 1161a96ea576637a2cd6b6021d818a2bed2fe3a16f39ef2584bc2c1648238a10

General

Target

2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe
Size

12.4MB
MD5

f639196be08948ac9eb5a1a4510c4af1
SHA1

f1048d26a50c7212a58792f17556d4d6ab241f59
SHA256

1161a96ea576637a2cd6b6021d818a2bed2fe3a16f39ef2584bc2c1648238a10
SHA512

60d5f7010280a4e7f1d5a6ee3563ca8770719f337553af741d7a90757bc6c33a1392e4042ba2b18f79d1e44d6586ee71e5f3669c9b1fe627681ac67185a79ffb
SSDEEP

393216:9XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH:

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
756	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\abogycyr\ImagePath = "C:\\Windows\\SysWOW64\\abogycyr\\dfyjqymc.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-1-5-21-70482961-775596374-3727440602-1000\Control Panel\International\Geo\Nation	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe

Deletes itself 1 IoCs

pid	Process
5088	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1756	dfyjqymc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1756 set thread context of 5088	1756	dfyjqymc.exe	104

Launches sc.exe 3 IoCs

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

pid	Process
3160	sc.exe
388	sc.exe
4716	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dfyjqymc.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3192 wrote to memory of 4840	3192	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	87
PID 3192 wrote to memory of 4840	3192	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	87
PID 3192 wrote to memory of 4840	3192	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	87
PID 3192 wrote to memory of 3164	3192	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	89
PID 3192 wrote to memory of 3164	3192	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	89
PID 3192 wrote to memory of 3164	3192	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	89
PID 3192 wrote to memory of 3160	3192	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	91
PID 3192 wrote to memory of 3160	3192	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	91
PID 3192 wrote to memory of 3160	3192	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	91
PID 3192 wrote to memory of 388	3192	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	95
PID 3192 wrote to memory of 388	3192	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	95
PID 3192 wrote to memory of 388	3192	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	95
PID 3192 wrote to memory of 4716	3192	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	100
PID 3192 wrote to memory of 4716	3192	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	100
PID 3192 wrote to memory of 4716	3192	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	100
PID 3192 wrote to memory of 756	3192	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	103
PID 3192 wrote to memory of 756	3192	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	103
PID 3192 wrote to memory of 756	3192	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	103
PID 1756 wrote to memory of 5088	1756	dfyjqymc.exe	104
PID 1756 wrote to memory of 5088	1756	dfyjqymc.exe	104
PID 1756 wrote to memory of 5088	1756	dfyjqymc.exe	104
PID 1756 wrote to memory of 5088	1756	dfyjqymc.exe	104
PID 1756 wrote to memory of 5088	1756	dfyjqymc.exe	104

C:\Users\Admin\AppData\Local\Temp\2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3192
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\abogycyr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4840
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dfyjqymc.exe" C:\Windows\SysWOW64\abogycyr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3164
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create abogycyr binPath= "C:\Windows\SysWOW64\abogycyr\dfyjqymc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3160
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description abogycyr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:388
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start abogycyr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4716
- 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:756

C:\Windows\SysWOW64\abogycyr\dfyjqymc.exe
C:\Windows\SysWOW64\abogycyr\dfyjqymc.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5088

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\dfyjqymc.exe

Filesize
12.1MB

MD5
aa0cd45e70671c7238414f3bc097c586

SHA1
0cc20ed4b6f6d096aec394ddecead658f00cad1f

SHA256
cea02b453e83cd2890874d283c94f24ef127821d83cb831f28dc2e92124b92b7

SHA512
f4124de6a61677f1887bb7e1255e1211fa3be30e44b549e70e882707eb0d3c3178e54fd893cd463a0861be3de3cce7ed14ab0c408d34f8a8d942ca8e8fae5701

Download Submit
memory/1756-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1756-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1756-16-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3192-12-0x00000000005B0000-0x00000000005C3000-memory.dmp

Filesize
76KB

Download
memory/3192-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/3192-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3192-2-0x00000000005B0000-0x00000000005C3000-memory.dmp

Filesize
76KB

Download
memory/3192-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3192-10-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/5088-11-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download
memory/5088-18-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download
memory/5088-19-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download
memory/5088-20-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download
memory/5088-21-0x0000000000B30000-0x0000000000B45000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads