tofsee | e476032fe0cba367b71fd6f1c888053cc057b1394afb08f061841ca057dfb074

General

Target

2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe
Size

13.2MB
MD5

f7b0719e0842ad06b11cea96fbbd8838
SHA1

b36d370f676eade7df6fdaa09ff47346ae8e01b3
SHA256

e476032fe0cba367b71fd6f1c888053cc057b1394afb08f061841ca057dfb074
SHA512

8a08d81099173a283add47f0865a016e39d6b68545e1dd5c0be96957d47a8cdc18addd12b8592f030f8babb7640ef7f186a4af3cb6e4ec37c05cfb9fad9ed0db
SSDEEP

6144:QLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQn:FTYe+D2jFu+iZoUFhAzG

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
1532	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\jqisrbmd\ImagePath = "C:\\Windows\\SysWOW64\\jqisrbmd\\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-1-5-21-70482961-775596374-3727440602-1000\Control Panel\International\Geo\Nation	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe

Deletes itself 1 IoCs

pid	Process
812	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3044	eefqlmks.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3044 set thread context of 812	3044	eefqlmks.exe	104

Launches sc.exe 3 IoCs

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

pid	Process
2424	sc.exe
2452	sc.exe
3640	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
400	2296	WerFault.exe	82
1552	3044	WerFault.exe	99

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eefqlmks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 3756	2296	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	86
PID 2296 wrote to memory of 3756	2296	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	86
PID 2296 wrote to memory of 3756	2296	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	86
PID 2296 wrote to memory of 2064	2296	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	89
PID 2296 wrote to memory of 2064	2296	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	89
PID 2296 wrote to memory of 2064	2296	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	89
PID 2296 wrote to memory of 2424	2296	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	92
PID 2296 wrote to memory of 2424	2296	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	92
PID 2296 wrote to memory of 2424	2296	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	92
PID 2296 wrote to memory of 2452	2296	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	95
PID 2296 wrote to memory of 2452	2296	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	95
PID 2296 wrote to memory of 2452	2296	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	95
PID 2296 wrote to memory of 3640	2296	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	97
PID 2296 wrote to memory of 3640	2296	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	97
PID 2296 wrote to memory of 3640	2296	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	97
PID 2296 wrote to memory of 1532	2296	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	100
PID 2296 wrote to memory of 1532	2296	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	100
PID 2296 wrote to memory of 1532	2296	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	100
PID 3044 wrote to memory of 812	3044	eefqlmks.exe	104
PID 3044 wrote to memory of 812	3044	eefqlmks.exe	104
PID 3044 wrote to memory of 812	3044	eefqlmks.exe	104
PID 3044 wrote to memory of 812	3044	eefqlmks.exe	104
PID 3044 wrote to memory of 812	3044	eefqlmks.exe	104

C:\Users\Admin\AppData\Local\Temp\2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jqisrbmd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eefqlmks.exe" C:\Windows\SysWOW64\jqisrbmd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jqisrbmd binPath= "C:\Windows\SysWOW64\jqisrbmd\eefqlmks.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2424
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jqisrbmd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jqisrbmd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3640
- 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:1532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2296 -s 1040
  2⤵
  - Program crash
  PID:400

C:\Windows\SysWOW64\jqisrbmd\eefqlmks.exe
C:\Windows\SysWOW64\jqisrbmd\eefqlmks.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3044
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:812
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 508
  2⤵
  - Program crash
  PID:1552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2296 -ip 2296
1⤵
PID:3560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3044 -ip 3044
1⤵
PID:2576

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
12.1MB

MD5
0622524f0e26a6bfe6ca542938b1a04e

SHA1
8d134385afd883331538bf88d563445dd7a89072

SHA256
7e070b79eb7d7857b5bcd1d356b387e7e24292e096035e22938f5e24e6182e48

SHA512
b56e30fd1b2261006e8ddbd6d5f6629f5429beb3df0f82874053ee96fa44e607ae67a7ae6d18b2a6765104a06d588175c100e1088afe7d69149a0b709965237b

Download Submit
memory/812-13-0x0000000001010000-0x0000000001025000-memory.dmp

Filesize
84KB

Download
memory/812-18-0x0000000001010000-0x0000000001025000-memory.dmp

Filesize
84KB

Download
memory/812-20-0x0000000001010000-0x0000000001025000-memory.dmp

Filesize
84KB

Download
memory/812-10-0x0000000001010000-0x0000000001025000-memory.dmp

Filesize
84KB

Download
memory/812-19-0x0000000001010000-0x0000000001025000-memory.dmp

Filesize
84KB

Download
memory/2296-2-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/2296-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2296-1-0x00000000006E0000-0x00000000007E0000-memory.dmp

Filesize
1024KB

Download
memory/2296-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2296-15-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/2296-14-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3044-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3044-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3044-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads