tofsee | a294da462dcf90513898a1ab59be2626addeb28f9c639b57d5c0d2c1e1b975d9

Analysis

max time kernel
145s
max time network
123s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
14-12-2024 17:19

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General

Target

efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe
Size

13.3MB
MD5

efdd33d29a37ccda51a133f98616f2c1
SHA1

d445a4f5c8fc22bac4bb4f304b96f021c9947152
SHA256

a294da462dcf90513898a1ab59be2626addeb28f9c639b57d5c0d2c1e1b975d9
SHA512

75c111fd39b5df64a131ffad85e60b7c54737a78122007dc78bdf24556a290bffa524f665db8dc2b543982cf4ecf4e97a2d8846906d69f276a3f9075eb485b2a
SSDEEP

49152:P8yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyW:P

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.6

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\nxzlzfue = "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
2768	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\nxzlzfue\ImagePath = "C:\\Windows\\SysWOW64\\nxzlzfue\\dmbwihoy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2928	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
964	dmbwihoy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 964 set thread context of 2928	964	dmbwihoy.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
1548	sc.exe
1636	sc.exe
1800	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	dmbwihoy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.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	netsh.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 2036 wrote to memory of 2572	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	31
PID 2036 wrote to memory of 2572	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	31
PID 2036 wrote to memory of 2572	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	31
PID 2036 wrote to memory of 2572	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	31
PID 2036 wrote to memory of 2340	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	33
PID 2036 wrote to memory of 2340	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	33
PID 2036 wrote to memory of 2340	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	33
PID 2036 wrote to memory of 2340	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	33
PID 2036 wrote to memory of 1548	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	35
PID 2036 wrote to memory of 1548	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	35
PID 2036 wrote to memory of 1548	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	35
PID 2036 wrote to memory of 1548	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	35
PID 2036 wrote to memory of 1636	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	37
PID 2036 wrote to memory of 1636	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	37
PID 2036 wrote to memory of 1636	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	37
PID 2036 wrote to memory of 1636	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	37
PID 2036 wrote to memory of 1800	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	39
PID 2036 wrote to memory of 1800	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	39
PID 2036 wrote to memory of 1800	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	39
PID 2036 wrote to memory of 1800	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	39
PID 2036 wrote to memory of 2768	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	42
PID 2036 wrote to memory of 2768	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	42
PID 2036 wrote to memory of 2768	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	42
PID 2036 wrote to memory of 2768	2036	efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe	42
PID 964 wrote to memory of 2928	964	dmbwihoy.exe	44
PID 964 wrote to memory of 2928	964	dmbwihoy.exe	44
PID 964 wrote to memory of 2928	964	dmbwihoy.exe	44
PID 964 wrote to memory of 2928	964	dmbwihoy.exe	44
PID 964 wrote to memory of 2928	964	dmbwihoy.exe	44
PID 964 wrote to memory of 2928	964	dmbwihoy.exe	44

C:\Users\Admin\AppData\Local\Temp\efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nxzlzfue\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2572
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dmbwihoy.exe" C:\Windows\SysWOW64\nxzlzfue\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2340
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nxzlzfue binPath= "C:\Windows\SysWOW64\nxzlzfue\dmbwihoy.exe /d\"C:\Users\Admin\AppData\Local\Temp\efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nxzlzfue "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1636
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nxzlzfue
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1800
- 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:2768

C:\Windows\SysWOW64\nxzlzfue\dmbwihoy.exe
C:\Windows\SysWOW64\nxzlzfue\dmbwihoy.exe /d"C:\Users\Admin\AppData\Local\Temp\efdd33d29a37ccda51a133f98616f2c1_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:964
- 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:2928

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\dmbwihoy.exe

Filesize
10.4MB

MD5
3c40ce0ccb6aa51cbb028c0eeb78c98e

SHA1
cfb83fe7862204720c5b94eec0fdfe055b015ad2

SHA256
75d74179d63c0b2b3b5bdbb8bb954e5ae54712b39722bde3afefb87f8f84ca9c

SHA512
594aa2c621a5e8a83cc38739994369b5541933b51f93eff2aa275282ea9851ec7d155ab83b811010d3e24a120b2daa8a7d887d3ffd00a5d29cf2cb129c8d6c4d

Download Submit
memory/964-16-0x0000000000400000-0x00000000008E9000-memory.dmp

Filesize
4.9MB

Download
memory/2036-7-0x0000000000400000-0x00000000008E9000-memory.dmp

Filesize
4.9MB

Download
memory/2036-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2036-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2036-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2036-1-0x00000000009D0000-0x0000000000AD0000-memory.dmp

Filesize
1024KB

Download
memory/2036-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2928-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2928-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2928-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2928-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2928-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads