tofsee | 19c4f66ba2ad78aafe9faea7572a2e3cbc2597442350bc602b6895c21432263a

General

Target

2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe
Size

11.4MB
MD5

a1b57ac6c430760b3cadfc2f81900e94
SHA1

eee2f7cfef052cc534ab615d3f9cb0da4cc7a3e9
SHA256

19c4f66ba2ad78aafe9faea7572a2e3cbc2597442350bc602b6895c21432263a
SHA512

7ca85a839308787658eac09e79845b2bde90e5145c844a287dec9a3b4ea0ba21f2520698d527a066423594773c1cd492d733f05dd1b7b28247f1f4ae2e2e9a5a
SSDEEP

24576:HEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZb:kfot

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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
57	4148	Process not Found

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
680	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\zdwjnrrm\ImagePath = "C:\\Windows\\SysWOW64\\zdwjnrrm\\gibmtbpf.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-1-5-21-895555807-3853795127-2958627047-1000\Control Panel\International\Geo\Nation	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe

Deletes itself 1 IoCs

pid	Process
2944	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2756	gibmtbpf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2756 set thread context of 2944	2756	gibmtbpf.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
4888	sc.exe
3680	sc.exe
4128	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
2460	3696	WerFault.exe	85
1212	2756	WerFault.exe	99

System Location Discovery: System Language Discovery 1 TTPs 10 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	gibmtbpf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3628	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3696 wrote to memory of 3204	3696	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe	89
PID 3696 wrote to memory of 3204	3696	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe	89
PID 3696 wrote to memory of 3204	3696	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe	89
PID 3696 wrote to memory of 4896	3696	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe	91
PID 3696 wrote to memory of 4896	3696	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe	91
PID 3696 wrote to memory of 4896	3696	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe	91
PID 3696 wrote to memory of 4888	3696	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe	93
PID 3696 wrote to memory of 4888	3696	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe	93
PID 3696 wrote to memory of 4888	3696	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe	93
PID 3696 wrote to memory of 3680	3696	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe	95
PID 3696 wrote to memory of 3680	3696	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe	95
PID 3696 wrote to memory of 3680	3696	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe	95
PID 3696 wrote to memory of 4128	3696	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe	97
PID 3696 wrote to memory of 4128	3696	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe	97
PID 3696 wrote to memory of 4128	3696	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe	97
PID 3696 wrote to memory of 680	3696	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe	100
PID 3696 wrote to memory of 680	3696	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe	100
PID 3696 wrote to memory of 680	3696	2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe	100
PID 2756 wrote to memory of 2944	2756	gibmtbpf.exe	105
PID 2756 wrote to memory of 2944	2756	gibmtbpf.exe	105
PID 2756 wrote to memory of 2944	2756	gibmtbpf.exe	105
PID 2756 wrote to memory of 2944	2756	gibmtbpf.exe	105
PID 2756 wrote to memory of 2944	2756	gibmtbpf.exe	105

C:\Users\Admin\AppData\Local\Temp\2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3696
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zdwjnrrm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3204
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gibmtbpf.exe" C:\Windows\SysWOW64\zdwjnrrm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4896
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zdwjnrrm binPath= "C:\Windows\SysWOW64\zdwjnrrm\gibmtbpf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zdwjnrrm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3680
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zdwjnrrm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4128
- 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:680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 1220
  2⤵
  - Program crash
  PID:2460

C:\Windows\SysWOW64\zdwjnrrm\gibmtbpf.exe
C:\Windows\SysWOW64\zdwjnrrm\gibmtbpf.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_a1b57ac6c430760b3cadfc2f81900e94_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2944
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2756 -s 508
  2⤵
  - Program crash
  PID:1212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3696 -ip 3696
1⤵
PID:1236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2756 -ip 2756
1⤵
PID:1320

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDY4MzAiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxOTE0Njg3NjAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MjA2ODMxNjU2Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:3628

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
11.7MB

MD5
237f5d1c3c1d86bc4f16f07b74177dca

SHA1
16fadc388d4ac6aa858bbe23500d2e9b38669808

SHA256
d76768a7dc9d6398d7f9e2640683b9e2f5b5c844f4853e203d364fd3556cd896

SHA512
b8c47357502675422dba8e35faa205e74879e2a962723ccfa97e85cce179413d776e58cc9482f819717c2d031351f322a3e57ed35b3b1c50f2d61d60b0cdab6a

Download Submit
memory/2756-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2756-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2756-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2756-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2944-14-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/2944-16-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/2944-17-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/3696-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3696-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/3696-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/3696-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3696-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3696-1-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads