tofsee | 103d6f764e3a1d823563157557c9a5d875596f28fb1d305a361309832beed07c

Analysis

max time kernel
147s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
28-11-2024 18:26

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General

Target

2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe
Size

11.3MB
MD5

06bd1eaff94ed6673544a046395e863a
SHA1

986cff31eda9d82dd0a461181c59d804fc6b3caf
SHA256

103d6f764e3a1d823563157557c9a5d875596f28fb1d305a361309832beed07c
SHA512

9d7bfeef59c3110926d3379ac6a53c76e59449de890d3dc1481c2985cbe3cd6e6fc7d28eaf2a73749722cc2e3bad713f9dc0bb2cd097a3c78169c23a62f674e1
SSDEEP

6144:wXxZs2EcxJ8GD96ySzTVaFRFX53ncNnUUMMMMMMMMb5:wXzuKJ8GD96ySzTcANnQMMMMMMMb

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\fcxduvua = "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
2660	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\fcxduvua\ImagePath = "C:\\Windows\\SysWOW64\\fcxduvua\\bbagrfmp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3048	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2712	bbagrfmp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2712 set thread context of 3048	2712	bbagrfmp.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2964	sc.exe
2884	sc.exe
2760	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 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	2024-11-28_06bd1eaff94ed6673544a046395e863a_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	bbagrfmp.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2640 wrote to memory of 2832	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	30
PID 2640 wrote to memory of 2832	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	30
PID 2640 wrote to memory of 2832	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	30
PID 2640 wrote to memory of 2832	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	30
PID 2640 wrote to memory of 2704	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	32
PID 2640 wrote to memory of 2704	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	32
PID 2640 wrote to memory of 2704	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	32
PID 2640 wrote to memory of 2704	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	32
PID 2640 wrote to memory of 2964	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	34
PID 2640 wrote to memory of 2964	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	34
PID 2640 wrote to memory of 2964	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	34
PID 2640 wrote to memory of 2964	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	34
PID 2640 wrote to memory of 2884	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	36
PID 2640 wrote to memory of 2884	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	36
PID 2640 wrote to memory of 2884	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	36
PID 2640 wrote to memory of 2884	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	36
PID 2640 wrote to memory of 2760	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	38
PID 2640 wrote to memory of 2760	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	38
PID 2640 wrote to memory of 2760	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	38
PID 2640 wrote to memory of 2760	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	38
PID 2640 wrote to memory of 2660	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	41
PID 2640 wrote to memory of 2660	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	41
PID 2640 wrote to memory of 2660	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	41
PID 2640 wrote to memory of 2660	2640	2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe	41
PID 2712 wrote to memory of 3048	2712	bbagrfmp.exe	43
PID 2712 wrote to memory of 3048	2712	bbagrfmp.exe	43
PID 2712 wrote to memory of 3048	2712	bbagrfmp.exe	43
PID 2712 wrote to memory of 3048	2712	bbagrfmp.exe	43
PID 2712 wrote to memory of 3048	2712	bbagrfmp.exe	43
PID 2712 wrote to memory of 3048	2712	bbagrfmp.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2640
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fcxduvua\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bbagrfmp.exe" C:\Windows\SysWOW64\fcxduvua\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fcxduvua binPath= "C:\Windows\SysWOW64\fcxduvua\bbagrfmp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fcxduvua "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 fcxduvua
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- 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:2660

C:\Windows\SysWOW64\fcxduvua\bbagrfmp.exe
C:\Windows\SysWOW64\fcxduvua\bbagrfmp.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-28_06bd1eaff94ed6673544a046395e863a_karagany_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- 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:3048

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\bbagrfmp.exe

Filesize
10.2MB

MD5
97c6c8a058f6ecd97c3c669d1e5d146f

SHA1
79530037c70e78e354d916425b6545b26a82c9c0

SHA256
ee42b046b1ce5b5876528b18db8b6a55da489c445882a66be1b68793b80c14da

SHA512
ecdee1b84fd624e1c07488e44d3bb9bf9c726c6a03f7d1bb119c8eb356cf2c61e3ce37e6be9353e9146129a11fd31411bbd542a1f3bd6eb75957101e162dd04d

Download Submit
memory/2640-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/2640-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2640-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2640-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2640-8-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2712-17-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3048-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3048-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3048-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3048-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3048-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads