tofsee | a3a057b1043123d1526a00e50b42ef509af9eced47b794a67ebcf30cb77b6e34

Analysis

max time kernel
147s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-11-2024 19:14

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General

Target

2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe
Size

14.0MB
MD5

f52e57f81c43238b788d3939d1eef4a4
SHA1

094698f6f65e6b4c5112ce9242baca936da5e3c7
SHA256

a3a057b1043123d1526a00e50b42ef509af9eced47b794a67ebcf30cb77b6e34
SHA512

75d8f1a5b932848ee885a120f67165fa149e67ca92a5888ba60bcf7936785a29380f1ac8d63c7e3ec5fa954fa80451c9cd04e691051fa8ed856b6156fad0c90e
SSDEEP

6144:EXxZs2EcxJ8GD96ySzTVaFRFX53ncNnUUMMMMMMMMb5:EXzuKJ8GD96ySzTcANnQMMMMMMMb

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\ipbawrqz = "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
2848	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\ipbawrqz\ImagePath = "C:\\Windows\\SysWOW64\\ipbawrqz\\mreehgwb.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2672	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2828	mreehgwb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2828 set thread context of 2672	2828	mreehgwb.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2744	sc.exe
3064	sc.exe
2728	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

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	sc.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	mreehgwb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 2568	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	30
PID 1640 wrote to memory of 2568	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	30
PID 1640 wrote to memory of 2568	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	30
PID 1640 wrote to memory of 2568	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	30
PID 1640 wrote to memory of 1984	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	32
PID 1640 wrote to memory of 1984	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	32
PID 1640 wrote to memory of 1984	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	32
PID 1640 wrote to memory of 1984	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	32
PID 1640 wrote to memory of 3064	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	34
PID 1640 wrote to memory of 3064	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	34
PID 1640 wrote to memory of 3064	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	34
PID 1640 wrote to memory of 3064	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	34
PID 1640 wrote to memory of 2728	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	36
PID 1640 wrote to memory of 2728	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	36
PID 1640 wrote to memory of 2728	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	36
PID 1640 wrote to memory of 2728	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	36
PID 1640 wrote to memory of 2744	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	38
PID 1640 wrote to memory of 2744	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	38
PID 1640 wrote to memory of 2744	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	38
PID 1640 wrote to memory of 2744	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	38
PID 1640 wrote to memory of 2848	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	41
PID 1640 wrote to memory of 2848	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	41
PID 1640 wrote to memory of 2848	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	41
PID 1640 wrote to memory of 2848	1640	2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe	41
PID 2828 wrote to memory of 2672	2828	mreehgwb.exe	43
PID 2828 wrote to memory of 2672	2828	mreehgwb.exe	43
PID 2828 wrote to memory of 2672	2828	mreehgwb.exe	43
PID 2828 wrote to memory of 2672	2828	mreehgwb.exe	43
PID 2828 wrote to memory of 2672	2828	mreehgwb.exe	43
PID 2828 wrote to memory of 2672	2828	mreehgwb.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ipbawrqz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2568
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mreehgwb.exe" C:\Windows\SysWOW64\ipbawrqz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1984
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ipbawrqz binPath= "C:\Windows\SysWOW64\ipbawrqz\mreehgwb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ipbawrqz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2728
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ipbawrqz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2744
- 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:2848

C:\Windows\SysWOW64\ipbawrqz\mreehgwb.exe
C:\Windows\SysWOW64\ipbawrqz\mreehgwb.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-29_f52e57f81c43238b788d3939d1eef4a4_karagany_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2828
- 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:2672

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\mreehgwb.exe

Filesize
14.0MB

MD5
7bf84a6cd630329747e0184c4caa6d32

SHA1
12947d2a18a5c4b2469dbab3ac853883b3af85cb

SHA256
599079bd5359b237eac540e9e1d9688ba95d5c199a76a25cd35e9590d25ca177

SHA512
f9aa130a660541d605f8eb75e9e9570043ada291f313a62d85029b909fc241fc1b07cb95a83aab0721815b8bd183aaabb3cef69366349c38b62b3dc99274f5a6

Download Submit
memory/1640-8-0x00000000003C0000-0x00000000003D3000-memory.dmp

Filesize
76KB

Download
memory/1640-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1640-2-0x00000000003C0000-0x00000000003D3000-memory.dmp

Filesize
76KB

Download
memory/1640-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1640-9-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/1640-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/1640-7-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2672-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2672-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2672-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2672-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2672-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-18-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads