tofsee | 21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32

Analysis

max time kernel
144s
max time network
150s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
25/12/2024, 19:55

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General

Target

JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe
Size

330KB
MD5

a04f9ed5dd9d3e76e04d5bd7edec63ad
SHA1

c097ab168de552eb4a20e0396cb72b345c3d756e
SHA256

21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32
SHA512

d34e52919da0f9642cb6bac1df8328766b1a94fa51680eef44ec765760bed72458c3f1e1aca0663d1d70924cf0a51ffbce6386412767efb7770f2e4bb7fc2f9f
SSDEEP

6144:BKnLinvP468OLVNc8F+Pc+H8ZjWizMXFfuGri:wkvP468y28Fn+HJizothri

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

patmushta.info

ovicrush.cn

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\nizehyec = "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
2740	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\nizehyec\ImagePath = "C:\\Windows\\SysWOW64\\nizehyec\\umstbtuj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1964	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3028	umstbtuj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3028 set thread context of 1964	3028	umstbtuj.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2492	sc.exe
2140	sc.exe
2860	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	umstbtuj.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	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2368	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	30
PID 2084 wrote to memory of 2368	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	30
PID 2084 wrote to memory of 2368	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	30
PID 2084 wrote to memory of 2368	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	30
PID 2084 wrote to memory of 2448	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	32
PID 2084 wrote to memory of 2448	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	32
PID 2084 wrote to memory of 2448	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	32
PID 2084 wrote to memory of 2448	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	32
PID 2084 wrote to memory of 2492	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	34
PID 2084 wrote to memory of 2492	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	34
PID 2084 wrote to memory of 2492	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	34
PID 2084 wrote to memory of 2492	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	34
PID 2084 wrote to memory of 2140	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	36
PID 2084 wrote to memory of 2140	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	36
PID 2084 wrote to memory of 2140	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	36
PID 2084 wrote to memory of 2140	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	36
PID 2084 wrote to memory of 2860	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	38
PID 2084 wrote to memory of 2860	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	38
PID 2084 wrote to memory of 2860	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	38
PID 2084 wrote to memory of 2860	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	38
PID 2084 wrote to memory of 2740	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	41
PID 2084 wrote to memory of 2740	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	41
PID 2084 wrote to memory of 2740	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	41
PID 2084 wrote to memory of 2740	2084	JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe	41
PID 3028 wrote to memory of 1964	3028	umstbtuj.exe	43
PID 3028 wrote to memory of 1964	3028	umstbtuj.exe	43
PID 3028 wrote to memory of 1964	3028	umstbtuj.exe	43
PID 3028 wrote to memory of 1964	3028	umstbtuj.exe	43
PID 3028 wrote to memory of 1964	3028	umstbtuj.exe	43
PID 3028 wrote to memory of 1964	3028	umstbtuj.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nizehyec\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2368
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\umstbtuj.exe" C:\Windows\SysWOW64\nizehyec\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2448
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nizehyec binPath= "C:\Windows\SysWOW64\nizehyec\umstbtuj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2492
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nizehyec "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nizehyec
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2860
- 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:2740

C:\Windows\SysWOW64\nizehyec\umstbtuj.exe
C:\Windows\SysWOW64\nizehyec\umstbtuj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_21408784d1e696ee84a00768df1119b35fd9aa5b69ea956970d23bcafe481f32.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3028
- 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:1964

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\umstbtuj.exe

Filesize
10.0MB

MD5
72992fbc4d70bdf8234e2eaf87452090

SHA1
d384954d57743587bc8e9cb61fb8e793dba8952e

SHA256
a9f79890e802d42d746df568e2d2508f99423c9434d761c202edf6df5cf72751

SHA512
3cc267986ca28a2eb966028dd864f378ca0c66e51b8edeb3b823a8489b7c5080bf941af98e02f4c5600c1c5b7c71d464713a7960454642dd8dc6d283712068af

Download Submit
memory/1964-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1964-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1964-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1964-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1964-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2084-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2084-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2084-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2084-8-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2084-7-0x0000000000400000-0x0000000002B1C000-memory.dmp

Filesize
39.1MB

Download
memory/2084-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/3028-17-0x0000000000400000-0x0000000002B1C000-memory.dmp

Filesize
39.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads