tofsee | e751ab3b1382e97257c76aa545708ce6ed35285f9fda888077367b288975066c

General

Target

2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe
Size

14.8MB
MD5

2c4cdebd3032e1eca0df9887c9866f93
SHA1

b63cf18b0732b2f480b0ae8a13b5fe008bc86bc8
SHA256

e751ab3b1382e97257c76aa545708ce6ed35285f9fda888077367b288975066c
SHA512

d58adfafaca4dd95e5e3c1e9312a71c787b69e415c9da9a3a5b101c8c8fe950c9ebb0f62869a8a420b3f431de19ac31e9793dd3b69e7e3edd798b8a6198affb4
SSDEEP

393216:BXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:

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
56	4576	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
1548	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\bcqysye\ImagePath = "C:\\Windows\\SysWOW64\\bcqysye\\kbjhrmth.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-1-5-21-3296967594-3563063956-581523229-1000\Control Panel\International\Geo\Nation	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe

Deletes itself 1 IoCs

pid	Process
1336	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2488	kbjhrmth.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2488 set thread context of 1336	2488	kbjhrmth.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
2180	sc.exe
544	sc.exe
4504	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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	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	kbjhrmth.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.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
3940	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4408 wrote to memory of 2792	4408	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe	91
PID 4408 wrote to memory of 2792	4408	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe	91
PID 4408 wrote to memory of 2792	4408	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe	91
PID 4408 wrote to memory of 4852	4408	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe	93
PID 4408 wrote to memory of 4852	4408	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe	93
PID 4408 wrote to memory of 4852	4408	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe	93
PID 4408 wrote to memory of 2180	4408	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe	95
PID 4408 wrote to memory of 2180	4408	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe	95
PID 4408 wrote to memory of 2180	4408	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe	95
PID 4408 wrote to memory of 544	4408	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe	97
PID 4408 wrote to memory of 544	4408	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe	97
PID 4408 wrote to memory of 544	4408	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe	97
PID 4408 wrote to memory of 4504	4408	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe	99
PID 4408 wrote to memory of 4504	4408	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe	99
PID 4408 wrote to memory of 4504	4408	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe	99
PID 2488 wrote to memory of 1336	2488	kbjhrmth.exe	102
PID 2488 wrote to memory of 1336	2488	kbjhrmth.exe	102
PID 2488 wrote to memory of 1336	2488	kbjhrmth.exe	102
PID 2488 wrote to memory of 1336	2488	kbjhrmth.exe	102
PID 2488 wrote to memory of 1336	2488	kbjhrmth.exe	102
PID 4408 wrote to memory of 1548	4408	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe	103
PID 4408 wrote to memory of 1548	4408	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe	103
PID 4408 wrote to memory of 1548	4408	2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4408
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bcqysye\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2792
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kbjhrmth.exe" C:\Windows\SysWOW64\bcqysye\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4852
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bcqysye binPath= "C:\Windows\SysWOW64\bcqysye\kbjhrmth.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2180
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bcqysye "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:544
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bcqysye
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4504
- 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:1548

C:\Windows\SysWOW64\bcqysye\kbjhrmth.exe
C:\Windows\SysWOW64\bcqysye\kbjhrmth.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-13_2c4cdebd3032e1eca0df9887c9866f93_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2488
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1336

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIyIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODIxNjkiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1MzE4NTEwMTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MjA3NjYxODQ3Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:3940

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

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Downloads

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

Filesize
14.2MB

MD5
cf00247bcde0b60445a09ec7d196e9c9

SHA1
3876ae5a8bf08501b115a0845ad894abfa9a73bb

SHA256
5df1079c1c9885073023e07382a86d33643a04926d5b3432f7253953f65fba29

SHA512
6f43188a6112b242b6535b7752d692190baa892f55a4329f2702e4e7068bf1bf1d75b445eb3ea9627bd434ade00f402a2b7b601161e87ac94c5dc078ea1faba2

Download Submit
memory/1336-11-0x0000000000A60000-0x0000000000A75000-memory.dmp

Filesize
84KB

Download
memory/1336-22-0x0000000000A60000-0x0000000000A75000-memory.dmp

Filesize
84KB

Download
memory/1336-21-0x0000000000A60000-0x0000000000A75000-memory.dmp

Filesize
84KB

Download
memory/1336-20-0x0000000000A60000-0x0000000000A75000-memory.dmp

Filesize
84KB

Download
memory/1336-14-0x0000000000A60000-0x0000000000A75000-memory.dmp

Filesize
84KB

Download
memory/2488-16-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2488-10-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2488-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2488-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4408-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/4408-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4408-19-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4408-18-0x0000000000460000-0x0000000000473000-memory.dmp

Filesize
76KB

Download
memory/4408-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4408-2-0x0000000000460000-0x0000000000473000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads