tofsee | 92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 03:32

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General

Target

JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe
Size

291KB
MD5

bce83cac12042215bc24bedde28e1319
SHA1

0a0f5ede583ea223fba4587dd3123d01dfad87fd
SHA256

92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3
SHA512

ae43966488722a4f4e25ff268fbd10c9a078259ef44289b65da5087e26c34ff265b919decfb66dfe258fde7bf68a24703fed56c30f1235220d1dd970fd00b9ff
SSDEEP

3072:101pH7yO9LeVPlZ7EoQt8Y4jMvlmM4jGeJSXuZet0ySbS1HI8MUr6BLk+r+t6Rwq:ooXjMtm/JSXuZet0ySbIHVZmBA+k6Gq

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.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\eibtajvr = "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
2812	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\eibtajvr\ImagePath = "C:\\Windows\\SysWOW64\\eibtajvr\\njyydkqh.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2900	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2796	njyydkqh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2796 set thread context of 2900	2796	njyydkqh.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2296	sc.exe
2908	sc.exe
2436	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	njyydkqh.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	sc.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	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2672	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	30
PID 2080 wrote to memory of 2672	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	30
PID 2080 wrote to memory of 2672	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	30
PID 2080 wrote to memory of 2672	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	30
PID 2080 wrote to memory of 1436	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	32
PID 2080 wrote to memory of 1436	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	32
PID 2080 wrote to memory of 1436	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	32
PID 2080 wrote to memory of 1436	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	32
PID 2080 wrote to memory of 2296	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	34
PID 2080 wrote to memory of 2296	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	34
PID 2080 wrote to memory of 2296	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	34
PID 2080 wrote to memory of 2296	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	34
PID 2080 wrote to memory of 2908	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	36
PID 2080 wrote to memory of 2908	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	36
PID 2080 wrote to memory of 2908	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	36
PID 2080 wrote to memory of 2908	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	36
PID 2080 wrote to memory of 2436	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	38
PID 2080 wrote to memory of 2436	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	38
PID 2080 wrote to memory of 2436	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	38
PID 2080 wrote to memory of 2436	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	38
PID 2080 wrote to memory of 2812	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	41
PID 2080 wrote to memory of 2812	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	41
PID 2080 wrote to memory of 2812	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	41
PID 2080 wrote to memory of 2812	2080	JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe	41
PID 2796 wrote to memory of 2900	2796	njyydkqh.exe	43
PID 2796 wrote to memory of 2900	2796	njyydkqh.exe	43
PID 2796 wrote to memory of 2900	2796	njyydkqh.exe	43
PID 2796 wrote to memory of 2900	2796	njyydkqh.exe	43
PID 2796 wrote to memory of 2900	2796	njyydkqh.exe	43
PID 2796 wrote to memory of 2900	2796	njyydkqh.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eibtajvr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2672
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\njyydkqh.exe" C:\Windows\SysWOW64\eibtajvr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1436
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eibtajvr binPath= "C:\Windows\SysWOW64\eibtajvr\njyydkqh.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2296
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eibtajvr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eibtajvr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2436
- 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:2812

C:\Windows\SysWOW64\eibtajvr\njyydkqh.exe
C:\Windows\SysWOW64\eibtajvr\njyydkqh.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_92960368c0022b69350ba401b2cfa052afda7552c76ab05a64e315a53f2261a3.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2796
- 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:2900

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\njyydkqh.exe

Filesize
14.4MB

MD5
bf1f93e7ff7d099b4337b56615d9487c

SHA1
7c58fad5a795dd1a1c694f052e904cabc3b7ec11

SHA256
59c83001517477f53b24d79e83e4af85f86ce80ce6e6a2c37944c41254b3296c

SHA512
ad90365f48df906f17175642af8e6cbfae878c09435e9b1fbf4962aa37aba79b61aaa00165bdbd30510fc3c71f3347169936c907b53d5304cafd7fa00440cdd5

Download Submit
memory/2080-1-0x0000000002C30000-0x0000000002D30000-memory.dmp

Filesize
1024KB

Download
memory/2080-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2080-4-0x0000000000400000-0x0000000002B41000-memory.dmp

Filesize
39.3MB

Download
memory/2080-7-0x0000000000400000-0x0000000002B41000-memory.dmp

Filesize
39.3MB

Download
memory/2080-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2796-14-0x0000000000400000-0x0000000002B41000-memory.dmp

Filesize
39.3MB

Download
memory/2900-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2900-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2900-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2900-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2900-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads