tofsee | ef2914c44cb8edd1d9f2d62c7998b3c0b6755cecb519a7904f646b5275daaef7

General

Target

2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe
Size

12.6MB
MD5

a78ecc2e78673cbde05577052782667b
SHA1

02e34071dbcd50a81db917bfcd3938064832248c
SHA256

ef2914c44cb8edd1d9f2d62c7998b3c0b6755cecb519a7904f646b5275daaef7
SHA512

3e7d03c5d29d3a93436f42635c49b0c91f428881a9871c06623105675c87566983b05d3d2758cacfb401f1686d16988443eac5e7d6de036c683073eaa67c90f2
SSDEEP

6144:RyXxZTquqxpXAdbbiFyKq3nUOcWfMMMMMMMbt:RyXzN8pXAdbbyyZtZfMMMMMMMb

Score

10^/10

tofsee discovery evasion 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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1624	netsh.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe

Executes dropped EXE 1 IoCs

pid	Process
4784	ruccaycl.exe

Launches sc.exe 3 IoCs

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

pid	Process
2800	sc.exe
4804	sc.exe
2204	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 1 IoCs

pid	pid_target	Process	procid_target
1388	1392	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 7 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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_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	sc.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1392 wrote to memory of 1560	1392	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	97
PID 1392 wrote to memory of 1560	1392	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	97
PID 1392 wrote to memory of 1560	1392	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	97
PID 1392 wrote to memory of 5040	1392	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	99
PID 1392 wrote to memory of 5040	1392	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	99
PID 1392 wrote to memory of 5040	1392	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	99
PID 1392 wrote to memory of 2204	1392	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	101
PID 1392 wrote to memory of 2204	1392	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	101
PID 1392 wrote to memory of 2204	1392	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	101
PID 1392 wrote to memory of 2800	1392	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	103
PID 1392 wrote to memory of 2800	1392	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	103
PID 1392 wrote to memory of 2800	1392	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	103
PID 1392 wrote to memory of 4804	1392	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	105
PID 1392 wrote to memory of 4804	1392	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	105
PID 1392 wrote to memory of 4804	1392	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	105
PID 1392 wrote to memory of 1624	1392	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	108
PID 1392 wrote to memory of 1624	1392	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	108
PID 1392 wrote to memory of 1624	1392	2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe	108

C:\Users\Admin\AppData\Local\Temp\2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1392
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hxuflwpc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1560
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ruccaycl.exe" C:\Windows\SysWOW64\hxuflwpc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5040
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hxuflwpc binPath= "C:\Windows\SysWOW64\hxuflwpc\ruccaycl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2204
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hxuflwpc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hxuflwpc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4804
- 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:1624
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1392 -s 660
  2⤵
  - Program crash
  PID:1388

C:\Windows\SysWOW64\hxuflwpc\ruccaycl.exe
C:\Windows\SysWOW64\hxuflwpc\ruccaycl.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-24_a78ecc2e78673cbde05577052782667b_karagany_mafia.exe"
1⤵
- Executes dropped EXE
PID:4784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1392 -ip 1392
1⤵
PID:5004

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

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

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

1

T1562.004

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\ruccaycl.exe

Filesize
14.2MB

MD5
131c3904b1bdace662e56e77cf916bc1

SHA1
25b44f09eb9d977828ea8df8310f49165b2e3454

SHA256
22a9502cd2cb460946da10db975bb97cfaa704ec3dae8326111291a051c65a4d

SHA512
bcf87b93789d3739748a60f81110a0a5369546dff754d228256d108a4e6d8dbacc23445c5793fc0f03da195a70558c174c90a5e91ea152fe7e11cb7ce01e1e75

Download Submit
memory/1392-1-0x00000000007C0000-0x00000000008C0000-memory.dmp

Filesize
1024KB

Download
memory/1392-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1392-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1392-7-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/1392-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1392-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads