tofsee | bacd49ab2847be07482d62f2465fb709ef691a5d9dafceb9edb1e5ae9388d4e7

Analysis

max time kernel
148s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-11-2024 12:02

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General

Target

2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe
Size

10.5MB
MD5

b08ffbd77399371263d6e747bafadd7d
SHA1

763d7e0270684647f84f19eabe2594a073f732eb
SHA256

bacd49ab2847be07482d62f2465fb709ef691a5d9dafceb9edb1e5ae9388d4e7
SHA512

dddbdeb2d9d459f2a8cb23ebd088454bdf1a0114660f03a9abebf9b2b51aea66069a0f8b1d14d046df1817f10b87bccb1f079df5c46272cd74cb77feed543b81
SSDEEP

6144:jyXxZTquqxpXAdbbiFyKq3nUOcWfMMMMMMMbt:jyXzN8pXAdbbyyZtZfMMMMMMMb

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

Processes:

svchost.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\qbuqirhj = "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

Processes:

netsh.exe

pid	Process
2568	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\qbuqirhj\ImagePath = "C:\\Windows\\SysWOW64\\qbuqirhj\\wfxwfrvm.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid	Process
276	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

wfxwfrvm.exe

pid	Process
2552	wfxwfrvm.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

wfxwfrvm.exe

description	pid	Process	procid_target
PID 2552 set thread context of 276	2552	wfxwfrvm.exe	43

Launches sc.exe 3 IoCs

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

Processes:

sc.exesc.exesc.exe

pid	Process
2684	sc.exe
2884	sc.exe
2604	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

Processes:

netsh.exe

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

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

Processes:

svchost.exe2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.execmd.execmd.exenetsh.exewfxwfrvm.exesc.exesc.exesc.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-28_b08ffbd77399371263d6e747bafadd7d_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wfxwfrvm.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 30 IoCs

Processes:

2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exewfxwfrvm.exe

description	pid	Process	procid_target
PID 2124 wrote to memory of 2820	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	30
PID 2124 wrote to memory of 2820	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	30
PID 2124 wrote to memory of 2820	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	30
PID 2124 wrote to memory of 2820	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	30
PID 2124 wrote to memory of 2008	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	32
PID 2124 wrote to memory of 2008	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	32
PID 2124 wrote to memory of 2008	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	32
PID 2124 wrote to memory of 2008	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	32
PID 2124 wrote to memory of 2684	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	34
PID 2124 wrote to memory of 2684	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	34
PID 2124 wrote to memory of 2684	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	34
PID 2124 wrote to memory of 2684	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	34
PID 2124 wrote to memory of 2884	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	36
PID 2124 wrote to memory of 2884	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	36
PID 2124 wrote to memory of 2884	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	36
PID 2124 wrote to memory of 2884	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	36
PID 2124 wrote to memory of 2604	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	38
PID 2124 wrote to memory of 2604	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	38
PID 2124 wrote to memory of 2604	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	38
PID 2124 wrote to memory of 2604	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	38
PID 2124 wrote to memory of 2568	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	41
PID 2124 wrote to memory of 2568	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	41
PID 2124 wrote to memory of 2568	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	41
PID 2124 wrote to memory of 2568	2124	2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe	41
PID 2552 wrote to memory of 276	2552	wfxwfrvm.exe	43
PID 2552 wrote to memory of 276	2552	wfxwfrvm.exe	43
PID 2552 wrote to memory of 276	2552	wfxwfrvm.exe	43
PID 2552 wrote to memory of 276	2552	wfxwfrvm.exe	43
PID 2552 wrote to memory of 276	2552	wfxwfrvm.exe	43
PID 2552 wrote to memory of 276	2552	wfxwfrvm.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qbuqirhj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wfxwfrvm.exe" C:\Windows\SysWOW64\qbuqirhj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qbuqirhj binPath= "C:\Windows\SysWOW64\qbuqirhj\wfxwfrvm.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qbuqirhj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qbuqirhj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2604
- 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:2568

C:\Windows\SysWOW64\qbuqirhj\wfxwfrvm.exe
C:\Windows\SysWOW64\qbuqirhj\wfxwfrvm.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-28_b08ffbd77399371263d6e747bafadd7d_karagany_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2552
- 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:276

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\wfxwfrvm.exe

Filesize
14.9MB

MD5
2c2e6700786325c1407d7a48e12b5569

SHA1
ca66c176f3168c65cc11953eb98766be46b09135

SHA256
0e4aae4db398745e1bedd73227aae54a409a1a4964c1e8adde6a056e468b9d28

SHA512
756d52df252367f4ac2178b6e44e63905ee197f82613b405ad96a5f8bbe43dde770fbd788696500edca4b7c6adc5d6da3f542c70c5b14b9aac6be798dc4cca6a

Download Submit
memory/276-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/276-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/276-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/276-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/276-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2124-7-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2124-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/2124-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2124-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2124-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2124-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2552-17-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download