tofsee | 8c63222a0b3b7fc5f95f5e2210af53321011e5907a1b2400cf7a8eb35a935d59

General

Target

797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe
Size

15.0MB
MD5

797d18fdc2257084b4ef1d72567da313
SHA1

d54a0fb342bb5ab844b86b922a8c7a5a8724168a
SHA256

8c63222a0b3b7fc5f95f5e2210af53321011e5907a1b2400cf7a8eb35a935d59
SHA512

c91cb7cf345e15897669aa0903974beaad66ee3e3b70ee50c523ea026fd6687720530ca5834b896e9fe1694171faec6c58b2709e2ac31a947d170e187eca90e7
SSDEEP

393216:lLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLP:

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

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

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\czqsegjq = "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

Processes:

netsh.exe

pid process

3032 netsh.exe

pid	process
3032	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\czqsegjq\ImagePath = "C:\\Windows\\SysWOW64\\czqsegjq\\amyggrgo.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2692 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

amyggrgo.exe

pid process

3036 amyggrgo.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

amyggrgo.exe

description pid process target process

PID 3036 set thread context of 2692 3036 amyggrgo.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2504 sc.exe
2776 sc.exe
2876 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2692	svchost.exe

pid	process
3036	amyggrgo.exe

description	pid	process	target process
PID 3036 set thread context of 2692	3036	amyggrgo.exe	svchost.exe

pid	process
2504	sc.exe
2776	sc.exe
2876	sc.exe

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

Processes:

netsh.exe

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

Processes:

cmd.execmd.exenetsh.exeamyggrgo.exesvchost.exe797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exesc.exesc.exesc.exe

description	ioc	process
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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	amyggrgo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	797d18fdc2257084b4ef1d72567da313_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	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exeamyggrgo.exe

description	pid	process	target process
PID 2376 wrote to memory of 2164	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	cmd.exe
PID 2376 wrote to memory of 2164	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	cmd.exe
PID 2376 wrote to memory of 2164	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	cmd.exe
PID 2376 wrote to memory of 2164	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	cmd.exe
PID 2376 wrote to memory of 1216	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	cmd.exe
PID 2376 wrote to memory of 1216	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	cmd.exe
PID 2376 wrote to memory of 1216	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	cmd.exe
PID 2376 wrote to memory of 1216	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	cmd.exe
PID 2376 wrote to memory of 2504	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	sc.exe
PID 2376 wrote to memory of 2504	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	sc.exe
PID 2376 wrote to memory of 2504	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	sc.exe
PID 2376 wrote to memory of 2504	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	sc.exe
PID 2376 wrote to memory of 2776	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	sc.exe
PID 2376 wrote to memory of 2776	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	sc.exe
PID 2376 wrote to memory of 2776	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	sc.exe
PID 2376 wrote to memory of 2776	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	sc.exe
PID 2376 wrote to memory of 2876	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	sc.exe
PID 2376 wrote to memory of 2876	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	sc.exe
PID 2376 wrote to memory of 2876	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	sc.exe
PID 2376 wrote to memory of 2876	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	sc.exe
PID 2376 wrote to memory of 3032	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	netsh.exe
PID 2376 wrote to memory of 3032	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	netsh.exe
PID 2376 wrote to memory of 3032	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	netsh.exe
PID 2376 wrote to memory of 3032	2376	797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe	netsh.exe
PID 3036 wrote to memory of 2692	3036	amyggrgo.exe	svchost.exe
PID 3036 wrote to memory of 2692	3036	amyggrgo.exe	svchost.exe
PID 3036 wrote to memory of 2692	3036	amyggrgo.exe	svchost.exe
PID 3036 wrote to memory of 2692	3036	amyggrgo.exe	svchost.exe
PID 3036 wrote to memory of 2692	3036	amyggrgo.exe	svchost.exe
PID 3036 wrote to memory of 2692	3036	amyggrgo.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\czqsegjq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2164
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\amyggrgo.exe" C:\Windows\SysWOW64\czqsegjq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1216
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create czqsegjq binPath= "C:\Windows\SysWOW64\czqsegjq\amyggrgo.exe /d\"C:\Users\Admin\AppData\Local\Temp\797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2504
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description czqsegjq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start czqsegjq
  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:3032

C:\Windows\SysWOW64\czqsegjq\amyggrgo.exe
C:\Windows\SysWOW64\czqsegjq\amyggrgo.exe /d"C:\Users\Admin\AppData\Local\Temp\797d18fdc2257084b4ef1d72567da313_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3036
- 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:2692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
12.8MB

MD5
0188921a5770e44e6292d666fe6818cb

SHA1
0289988998648e7a2970f43e8ca6230483c7d014

SHA256
a95e2f8d3d5830dbb398f6097525d5adef68492d271e6d2415ae209324ac4c65

SHA512
e392dd6724084775493bd155feb6db4ba1d4903054f2aa6151e5f8fe6833d80b31372aee4e12448dfa3ef9faad52fba16537ad8f602013510816e061edce8735

Download Submit
memory/2376-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2376-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2376-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2376-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2376-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2376-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/2692-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2692-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2692-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2692-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2692-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3036-17-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads