tofsee | 79d3cfabbde62600f74af50d8585ee6d0fbac3739a93d6f8a38a4b9f6e066e5e

Analysis

max time kernel
147s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-11-2024 18:56

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General

Target

2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe
Size

12.4MB
MD5

6c798b40326240e996f80aae14a6eb22
SHA1

36a67317530c39bfc6e326cb00b7bee94f9d33e7
SHA256

79d3cfabbde62600f74af50d8585ee6d0fbac3739a93d6f8a38a4b9f6e066e5e
SHA512

9534dff70e8a8f7f2aace258f9cbf81bbf684b096eca11b76e1a3e8a4f96c690267ddf87c7ac60145814670669ad459e0e9c5fbcad68ad77af8f0b0b5ed302f2
SSDEEP

49152:+Vdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGv:+Vdrl/9zG

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\tcnjgts = "0"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2980	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\tcnjgts\ImagePath = "C:\\Windows\\SysWOW64\\tcnjgts\\ruccaycl.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2316	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2880	ruccaycl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2880 set thread context of 2316	2880	ruccaycl.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2260	sc.exe
2228	sc.exe
2748	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

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	cmd.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	ruccaycl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2552	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	30
PID 2388 wrote to memory of 2552	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	30
PID 2388 wrote to memory of 2552	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	30
PID 2388 wrote to memory of 2552	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	30
PID 2388 wrote to memory of 2536	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	32
PID 2388 wrote to memory of 2536	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	32
PID 2388 wrote to memory of 2536	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	32
PID 2388 wrote to memory of 2536	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	32
PID 2388 wrote to memory of 2260	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	34
PID 2388 wrote to memory of 2260	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	34
PID 2388 wrote to memory of 2260	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	34
PID 2388 wrote to memory of 2260	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	34
PID 2388 wrote to memory of 2228	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	36
PID 2388 wrote to memory of 2228	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	36
PID 2388 wrote to memory of 2228	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	36
PID 2388 wrote to memory of 2228	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	36
PID 2388 wrote to memory of 2748	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	38
PID 2388 wrote to memory of 2748	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	38
PID 2388 wrote to memory of 2748	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	38
PID 2388 wrote to memory of 2748	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	38
PID 2388 wrote to memory of 2980	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	41
PID 2388 wrote to memory of 2980	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	41
PID 2388 wrote to memory of 2980	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	41
PID 2388 wrote to memory of 2980	2388	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	41
PID 2880 wrote to memory of 2316	2880	ruccaycl.exe	43
PID 2880 wrote to memory of 2316	2880	ruccaycl.exe	43
PID 2880 wrote to memory of 2316	2880	ruccaycl.exe	43
PID 2880 wrote to memory of 2316	2880	ruccaycl.exe	43
PID 2880 wrote to memory of 2316	2880	ruccaycl.exe	43
PID 2880 wrote to memory of 2316	2880	ruccaycl.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tcnjgts\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2552
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ruccaycl.exe" C:\Windows\SysWOW64\tcnjgts\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tcnjgts binPath= "C:\Windows\SysWOW64\tcnjgts\ruccaycl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2260
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tcnjgts "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2228
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tcnjgts
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- 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:2980

C:\Windows\SysWOW64\tcnjgts\ruccaycl.exe
C:\Windows\SysWOW64\tcnjgts\ruccaycl.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2880
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
14.8MB

MD5
a746049bab0f8696652b1a810b0ed6b7

SHA1
0dd86ed7b09e7cd95fba7b93b45cca0c34e9dafc

SHA256
6c6bd6c4fedd1e13ca78660b9e6aaa94b486e98487f4da3d60d18d440442dd86

SHA512
a31dd335cf72471dde093301ccd5c264a95c7c521c92f1e17e9c3bd3b392a8afc39866ed0c8a0ddeeb5317609b0b72f61797df5283dd06dde2f259105cbf6f87

Download Submit
memory/2316-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2316-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2316-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2316-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2316-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2388-1-0x0000000000960000-0x0000000000A60000-memory.dmp

Filesize
1024KB

Download
memory/2388-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2388-10-0x0000000000960000-0x0000000000A60000-memory.dmp

Filesize
1024KB

Download
memory/2388-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2388-8-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2388-3-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2880-18-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads