tofsee | a725c7f09a266056b3599ff0d8531a1145a243808b48eefaefa805ec00c62af0

General

Target

2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe
Size

14.5MB
MD5

a026d18ee3a43efeb3bb6cf62627fb60
SHA1

001bdf3769b61ec1043b594945ce524229c243c1
SHA256

a725c7f09a266056b3599ff0d8531a1145a243808b48eefaefa805ec00c62af0
SHA512

87ab5827d7bb9ae67fa754e6d1fa32e6d89c221f15bb13dec112299d35c0e4bf98d155122d5357aba6223e97a3ded11dc91720de8a6e19a678b07bbbcabdc923
SSDEEP

24576:6EfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZJ:Tfot

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
4292	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\bzdmwpup\ImagePath = "C:\\Windows\\SysWOW64\\bzdmwpup\\ayhirncy.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	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe

Deletes itself 1 IoCs

pid	Process
1580	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1300	ayhirncy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1300 set thread context of 1580	1300	ayhirncy.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
4644	sc.exe
5028	sc.exe
4028	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
4364	4776	WerFault.exe	83
1032	1300	WerFault.exe	95

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ayhirncy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4776 wrote to memory of 4944	4776	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe	85
PID 4776 wrote to memory of 4944	4776	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe	85
PID 4776 wrote to memory of 4944	4776	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe	85
PID 4776 wrote to memory of 1608	4776	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe	87
PID 4776 wrote to memory of 1608	4776	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe	87
PID 4776 wrote to memory of 1608	4776	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe	87
PID 4776 wrote to memory of 4644	4776	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe	89
PID 4776 wrote to memory of 4644	4776	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe	89
PID 4776 wrote to memory of 4644	4776	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe	89
PID 4776 wrote to memory of 5028	4776	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe	91
PID 4776 wrote to memory of 5028	4776	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe	91
PID 4776 wrote to memory of 5028	4776	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe	91
PID 4776 wrote to memory of 4028	4776	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe	93
PID 4776 wrote to memory of 4028	4776	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe	93
PID 4776 wrote to memory of 4028	4776	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe	93
PID 4776 wrote to memory of 4292	4776	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe	96
PID 4776 wrote to memory of 4292	4776	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe	96
PID 4776 wrote to memory of 4292	4776	2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe	96
PID 1300 wrote to memory of 1580	1300	ayhirncy.exe	102
PID 1300 wrote to memory of 1580	1300	ayhirncy.exe	102
PID 1300 wrote to memory of 1580	1300	ayhirncy.exe	102
PID 1300 wrote to memory of 1580	1300	ayhirncy.exe	102
PID 1300 wrote to memory of 1580	1300	ayhirncy.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bzdmwpup\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4944
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ayhirncy.exe" C:\Windows\SysWOW64\bzdmwpup\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1608
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bzdmwpup binPath= "C:\Windows\SysWOW64\bzdmwpup\ayhirncy.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4644
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bzdmwpup "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5028
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bzdmwpup
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4028
- 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:4292
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4776 -s 1036
  2⤵
  - Program crash
  PID:4364

C:\Windows\SysWOW64\bzdmwpup\ayhirncy.exe
C:\Windows\SysWOW64\bzdmwpup\ayhirncy.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-27_a026d18ee3a43efeb3bb6cf62627fb60_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1300
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1580
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1300 -s 536
  2⤵
  - Program crash
  PID:1032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4776 -ip 4776
1⤵
PID:4908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1300 -ip 1300
1⤵
PID:1328

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\ayhirncy.exe

Filesize
10.7MB

MD5
0788409917b738394553baf9774b8dc7

SHA1
0e28ba1213edb5fd8e8ff225d0ca08fe62dc68f4

SHA256
023d5c4ae2166abd9719e88849631a141d8736f4e3953b1ea9c591652a571f29

SHA512
36e6e649856c54ba1c91db0326cf31aba2e178c38d7dc425b3fcbab73d4a8317acb0cd0582e5bc8fb9dce46fd41d9afb5f683c7f5635d5ce091fa31d87919055

Download Submit
memory/1300-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1300-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1300-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1300-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1580-14-0x0000000000AB0000-0x0000000000AC5000-memory.dmp

Filesize
84KB

Download
memory/1580-16-0x0000000000AB0000-0x0000000000AC5000-memory.dmp

Filesize
84KB

Download
memory/1580-17-0x0000000000AB0000-0x0000000000AC5000-memory.dmp

Filesize
84KB

Download
memory/4776-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4776-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/4776-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4776-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/4776-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4776-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads