tofsee | e6868219c5cf3cc5bb04c31613dc2efc36914d329b1fa04d1164d5cde1f07913

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 07:01

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General

Target

e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe
Size

10.3MB
MD5

8c461c7cf6bec9a8b48f68c4ab4bdf2d
SHA1

bebe51ce9da26fb9c5fcce2e1dfb16424d829a85
SHA256

e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd
SHA512

0cb135b0a9a8d0771ba453b3456a0941135437fb2adbc20f6ee38174c62474e4710b33c0d36d5508df0faae9411377b74390ddb32edb28289f11592282a20f4f
SSDEEP

49152:/ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppt:

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

mubrikych.top

oxxyfix.xyz

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\jejapjhi = "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
2744	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\jejapjhi\ImagePath = "C:\\Windows\\SysWOW64\\jejapjhi\\otdrmhyj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2600	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2772	otdrmhyj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2772 set thread context of 2600	2772	otdrmhyj.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2740	sc.exe
2892	sc.exe
2876	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	svchost.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	otdrmhyj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2060 wrote to memory of 2492	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	30
PID 2060 wrote to memory of 2492	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	30
PID 2060 wrote to memory of 2492	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	30
PID 2060 wrote to memory of 2492	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	30
PID 2060 wrote to memory of 2452	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	33
PID 2060 wrote to memory of 2452	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	33
PID 2060 wrote to memory of 2452	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	33
PID 2060 wrote to memory of 2452	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	33
PID 2060 wrote to memory of 2740	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	35
PID 2060 wrote to memory of 2740	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	35
PID 2060 wrote to memory of 2740	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	35
PID 2060 wrote to memory of 2740	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	35
PID 2060 wrote to memory of 2892	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	37
PID 2060 wrote to memory of 2892	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	37
PID 2060 wrote to memory of 2892	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	37
PID 2060 wrote to memory of 2892	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	37
PID 2060 wrote to memory of 2876	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	39
PID 2060 wrote to memory of 2876	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	39
PID 2060 wrote to memory of 2876	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	39
PID 2060 wrote to memory of 2876	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	39
PID 2060 wrote to memory of 2744	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	42
PID 2060 wrote to memory of 2744	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	42
PID 2060 wrote to memory of 2744	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	42
PID 2060 wrote to memory of 2744	2060	e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe	42
PID 2772 wrote to memory of 2600	2772	otdrmhyj.exe	44
PID 2772 wrote to memory of 2600	2772	otdrmhyj.exe	44
PID 2772 wrote to memory of 2600	2772	otdrmhyj.exe	44
PID 2772 wrote to memory of 2600	2772	otdrmhyj.exe	44
PID 2772 wrote to memory of 2600	2772	otdrmhyj.exe	44
PID 2772 wrote to memory of 2600	2772	otdrmhyj.exe	44

C:\Users\Admin\AppData\Local\Temp\e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe
"C:\Users\Admin\AppData\Local\Temp\e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jejapjhi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2492
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\otdrmhyj.exe" C:\Windows\SysWOW64\jejapjhi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jejapjhi binPath= "C:\Windows\SysWOW64\jejapjhi\otdrmhyj.exe /d\"C:\Users\Admin\AppData\Local\Temp\e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jejapjhi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2892
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jejapjhi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2876
- 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:2744

C:\Windows\SysWOW64\jejapjhi\otdrmhyj.exe
C:\Windows\SysWOW64\jejapjhi\otdrmhyj.exe /d"C:\Users\Admin\AppData\Local\Temp\e12ec9871450a8052f6bb79066950faa5c1e3d1490884e07e345be9d1608e4fd.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- 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:2600

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\otdrmhyj.exe

Filesize
13.8MB

MD5
d9e4a95d8c0696a8f39c9767c345aa79

SHA1
3c328d9ee167a5e326fb326779833e61280b6f54

SHA256
b2dacd2f75d2b1181f60f59c49c7f584fa6a16d13a29f3716729173e2e87a4e2

SHA512
a95990e476131167674660a2b65c06e44ecb1cbb4d62d5a0f7c94b39b7a3c67dd645f6c335ac34c50503078a75342425d4921ba0b0aa1b2416b252e2850d0779

Download Submit
memory/2060-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2060-7-0x0000000000400000-0x0000000000826000-memory.dmp

Filesize
4.1MB

Download
memory/2060-1-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2060-5-0x0000000000400000-0x0000000000826000-memory.dmp

Filesize
4.1MB

Download
memory/2060-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2060-0-0x0000000000020000-0x000000000002D000-memory.dmp

Filesize
52KB

Download
memory/2060-8-0x0000000000020000-0x000000000002D000-memory.dmp

Filesize
52KB

Download
memory/2060-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2600-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2600-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2600-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2600-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2600-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2772-16-0x0000000000400000-0x0000000000826000-memory.dmp

Filesize
4.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads