tofsee | 58b0447f5e751cabb6553ed60b096418578287989f251b40c0dfbd56956b5d3f

General

Target

2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe
Size

10.2MB
MD5

c8291924dd7c790b362a85bf777d4eb7
SHA1

97c860da7c187d8c5c9c673a071d13c39c9ad06e
SHA256

58b0447f5e751cabb6553ed60b096418578287989f251b40c0dfbd56956b5d3f
SHA512

2667135b74828195109c913ed5deb9a3d9e8be72e2675025c36537a64343da4309e5244864a4d22321c0200d8b7079542557478dae4056a7a9904ac70fe60ee1
SSDEEP

24576:RpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttl:roo

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
4972	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\jmbvxygz\ImagePath = "C:\\Windows\\SysWOW64\\jmbvxygz\\hcgyozbz.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe

Deletes itself 1 IoCs

pid	Process
4724	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1184	hcgyozbz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1184 set thread context of 4724	1184	hcgyozbz.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
4924	sc.exe
648	sc.exe
4428	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
1728	4944	WerFault.exe	82
1352	1184	WerFault.exe	94

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hcgyozbz.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4944 wrote to memory of 4596	4944	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe	84
PID 4944 wrote to memory of 4596	4944	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe	84
PID 4944 wrote to memory of 4596	4944	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe	84
PID 4944 wrote to memory of 1128	4944	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe	86
PID 4944 wrote to memory of 1128	4944	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe	86
PID 4944 wrote to memory of 1128	4944	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe	86
PID 4944 wrote to memory of 4924	4944	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe	88
PID 4944 wrote to memory of 4924	4944	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe	88
PID 4944 wrote to memory of 4924	4944	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe	88
PID 4944 wrote to memory of 648	4944	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe	90
PID 4944 wrote to memory of 648	4944	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe	90
PID 4944 wrote to memory of 648	4944	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe	90
PID 4944 wrote to memory of 4428	4944	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe	92
PID 4944 wrote to memory of 4428	4944	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe	92
PID 4944 wrote to memory of 4428	4944	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe	92
PID 4944 wrote to memory of 4972	4944	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe	95
PID 4944 wrote to memory of 4972	4944	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe	95
PID 4944 wrote to memory of 4972	4944	2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe	95
PID 1184 wrote to memory of 4724	1184	hcgyozbz.exe	103
PID 1184 wrote to memory of 4724	1184	hcgyozbz.exe	103
PID 1184 wrote to memory of 4724	1184	hcgyozbz.exe	103
PID 1184 wrote to memory of 4724	1184	hcgyozbz.exe	103
PID 1184 wrote to memory of 4724	1184	hcgyozbz.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4944
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jmbvxygz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4596
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hcgyozbz.exe" C:\Windows\SysWOW64\jmbvxygz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1128
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jmbvxygz binPath= "C:\Windows\SysWOW64\jmbvxygz\hcgyozbz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4924
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jmbvxygz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:648
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jmbvxygz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4428
- 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:4972
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4944 -s 1308
  2⤵
  - Program crash
  PID:1728

C:\Windows\SysWOW64\jmbvxygz\hcgyozbz.exe
C:\Windows\SysWOW64\jmbvxygz\hcgyozbz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-25_c8291924dd7c790b362a85bf777d4eb7_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4724
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1184 -s 508
  2⤵
  - Program crash
  PID:1352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4944 -ip 4944
1⤵
PID:232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1184 -ip 1184
1⤵
PID:2756

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\hcgyozbz.exe

Filesize
11.9MB

MD5
6e80baf54bff9a0378aaaf7af23aa17c

SHA1
f6e978da770d9dbd07d85d4c96c8dd6a9c339320

SHA256
f41c3c337924286985bf10af91c698d75f547d024ab4a090ece2c15672855760

SHA512
ea4325413917da193690c69f8eece4d0b5b4a4853f55be9c52847a67957a2fc2430ff9ff2862773eea5640f548eb20a052d76e5dcc255fce6805c3ad6ddcac5c

Download Submit
memory/1184-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1184-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1184-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1184-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4724-14-0x0000000000600000-0x0000000000615000-memory.dmp

Filesize
84KB

Download
memory/4724-16-0x0000000000600000-0x0000000000615000-memory.dmp

Filesize
84KB

Download
memory/4724-17-0x0000000000600000-0x0000000000615000-memory.dmp

Filesize
84KB

Download
memory/4944-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4944-1-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/4944-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4944-8-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/4944-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4944-2-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads