tofsee | 7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 00:40

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe
Size

246KB
MD5

6f2595014bbd2fb3f6de3fdb184968d6
SHA1

53705987535819160dc864ed2240e2487aed2190
SHA256

7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450
SHA512

1d5edc9396d7517ead04a38b0cf6e7876981fe0b10ab77f6f75c9e2f97e69287efd95502b1a51e173bf9e334cb4c691d3f2142fb5a637f7404bd376d859d243c
SSDEEP

3072:d0XadBu5EiGfz/h+8tGTSBROksxkgaBChYasG0d:NiWp3GXigaQsG0

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\wkbqsnwk = "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
2504	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\wkbqsnwk\ImagePath = "C:\\Windows\\SysWOW64\\wkbqsnwk\\uzutrvnm.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1820	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1220	uzutrvnm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1220 set thread context of 1820	1220	uzutrvnm.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2884	sc.exe
1836	sc.exe
2096	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	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	uzutrvnm.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	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2596 wrote to memory of 2748	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	30
PID 2596 wrote to memory of 2748	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	30
PID 2596 wrote to memory of 2748	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	30
PID 2596 wrote to memory of 2748	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	30
PID 2596 wrote to memory of 2800	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	32
PID 2596 wrote to memory of 2800	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	32
PID 2596 wrote to memory of 2800	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	32
PID 2596 wrote to memory of 2800	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	32
PID 2596 wrote to memory of 2096	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	34
PID 2596 wrote to memory of 2096	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	34
PID 2596 wrote to memory of 2096	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	34
PID 2596 wrote to memory of 2096	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	34
PID 2596 wrote to memory of 2884	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	36
PID 2596 wrote to memory of 2884	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	36
PID 2596 wrote to memory of 2884	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	36
PID 2596 wrote to memory of 2884	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	36
PID 2596 wrote to memory of 1836	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	38
PID 2596 wrote to memory of 1836	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	38
PID 2596 wrote to memory of 1836	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	38
PID 2596 wrote to memory of 1836	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	38
PID 2596 wrote to memory of 2504	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	41
PID 2596 wrote to memory of 2504	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	41
PID 2596 wrote to memory of 2504	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	41
PID 2596 wrote to memory of 2504	2596	JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe	41
PID 1220 wrote to memory of 1820	1220	uzutrvnm.exe	44
PID 1220 wrote to memory of 1820	1220	uzutrvnm.exe	44
PID 1220 wrote to memory of 1820	1220	uzutrvnm.exe	44
PID 1220 wrote to memory of 1820	1220	uzutrvnm.exe	44
PID 1220 wrote to memory of 1820	1220	uzutrvnm.exe	44
PID 1220 wrote to memory of 1820	1220	uzutrvnm.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2596
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wkbqsnwk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uzutrvnm.exe" C:\Windows\SysWOW64\wkbqsnwk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wkbqsnwk binPath= "C:\Windows\SysWOW64\wkbqsnwk\uzutrvnm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2096
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wkbqsnwk "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 wkbqsnwk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1836
- 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:2504

C:\Windows\SysWOW64\wkbqsnwk\uzutrvnm.exe
C:\Windows\SysWOW64\wkbqsnwk\uzutrvnm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d863571078cb46ad55f7d92082ba60fe8ea704cc4bf77ed60b8322745b14450.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1220
- 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:1820

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\uzutrvnm.exe

Filesize
11.8MB

MD5
ee9186d504f02f19c6457c016d1444f7

SHA1
e1942b410a484652aba5e6c2451ba4431c9faa10

SHA256
ebb6821bdd9bcf3dd6c10dc673362a35f2c941d0ef2d4780a3e4652ba57c32f2

SHA512
9aac21331dc26f5373d0fc28fc419b2ac3f3418965f2ef1a19b2cac9c36106c852acdefd22f0b47ad06b902bbd2bf1b414d81c63b8a15d6ca138c2b1bdece709

Download Submit
memory/1220-16-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/1820-15-0x0000000000120000-0x0000000000135000-memory.dmp

Filesize
84KB

Download
memory/1820-10-0x0000000000120000-0x0000000000135000-memory.dmp

Filesize
84KB

Download
memory/1820-13-0x0000000000120000-0x0000000000135000-memory.dmp

Filesize
84KB

Download
memory/1820-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1820-17-0x0000000000120000-0x0000000000135000-memory.dmp

Filesize
84KB

Download
memory/2596-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2596-6-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/2596-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2596-8-0x0000000000250000-0x0000000000263000-memory.dmp

Filesize
76KB

Download
memory/2596-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2596-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2596-1-0x0000000000250000-0x0000000000263000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads