tofsee | 19d8923701cbffb8e0f7f3cb4772239bac595a314a444de6c3517f153b7beb12

General

Target

5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe
Size

285KB
MD5

5c9f165708d2048efede69f4f5a98d5c
SHA1

cc34508989b9b0f8ec666946157e5e1bb8c43b09
SHA256

19d8923701cbffb8e0f7f3cb4772239bac595a314a444de6c3517f153b7beb12
SHA512

3b37bf309c5d61cf14c120a47cd9e44697e66f5a2e8c3d6c790003ed8f7ac2ddec383c7dd52e3ca08060b9a7cadb55e8f49ff67f4ad1854a4761439c3e5dda5b
SSDEEP

6144:0XPEvmSL4nfFsmUf6yjeZkAIdFIrasbROhxxpeTr/ekI:0fE1cnfiRn4lesIzxp6L

Score

10^/10

tofsee 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

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\nhuyhojh = "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

2784 netsh.exe

pid	process
2784	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\nhuyhojh\ImagePath = "C:\\Windows\\SysWOW64\\nhuyhojh\\homxcxlz.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2284 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

homxcxlz.exe

pid process

2876 homxcxlz.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

homxcxlz.exe

description pid process target process

PID 2876 set thread context of 2284 2876 homxcxlz.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

2960 sc.exe
2840 sc.exe
2864 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2284	svchost.exe

pid	process
2876	homxcxlz.exe

description	pid	process	target process
PID 2876 set thread context of 2284	2876	homxcxlz.exe	svchost.exe

pid	process
2960	sc.exe
2840	sc.exe
2864	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

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exehomxcxlz.exe

description	pid	process	target process
PID 2776 wrote to memory of 2788	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	cmd.exe
PID 2776 wrote to memory of 2788	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	cmd.exe
PID 2776 wrote to memory of 2788	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	cmd.exe
PID 2776 wrote to memory of 2788	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	cmd.exe
PID 2776 wrote to memory of 2836	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	cmd.exe
PID 2776 wrote to memory of 2836	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	cmd.exe
PID 2776 wrote to memory of 2836	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	cmd.exe
PID 2776 wrote to memory of 2836	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	cmd.exe
PID 2776 wrote to memory of 2960	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2960	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2960	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2960	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2840	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2840	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2840	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2840	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2864	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2864	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2864	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2864	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2784	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	netsh.exe
PID 2776 wrote to memory of 2784	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	netsh.exe
PID 2776 wrote to memory of 2784	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	netsh.exe
PID 2776 wrote to memory of 2784	2776	5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe	netsh.exe
PID 2876 wrote to memory of 2284	2876	homxcxlz.exe	svchost.exe
PID 2876 wrote to memory of 2284	2876	homxcxlz.exe	svchost.exe
PID 2876 wrote to memory of 2284	2876	homxcxlz.exe	svchost.exe
PID 2876 wrote to memory of 2284	2876	homxcxlz.exe	svchost.exe
PID 2876 wrote to memory of 2284	2876	homxcxlz.exe	svchost.exe
PID 2876 wrote to memory of 2284	2876	homxcxlz.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2776

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nhuyhojh\
2⤵
PID:2788

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\homxcxlz.exe" C:\Windows\SysWOW64\nhuyhojh\
2⤵
PID:2836

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create nhuyhojh binPath= "C:\Windows\SysWOW64\nhuyhojh\homxcxlz.exe /d\"C:\Users\Admin\AppData\Local\Temp\5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2960

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description nhuyhojh "wifi internet conection"
2⤵
- Launches sc.exe
PID:2840

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start nhuyhojh
2⤵
- Launches sc.exe
PID:2864

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
PID:2784

C:\Windows\SysWOW64\nhuyhojh\homxcxlz.exe
C:\Windows\SysWOW64\nhuyhojh\homxcxlz.exe /d"C:\Users\Admin\AppData\Local\Temp\5c9f165708d2048efede69f4f5a98d5c_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2876

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2284

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\homxcxlz.exe
Filesize
11.9MB

MD5
68a78a79b2e3d47538216b2fcf470102

SHA1
a7f3f6773254779ef616330dd55b75b7e0067854

SHA256
cc676d4f5d0963d6f74b2ca7bf22c4cefbfbc270846a9f4b616be970e448a9cd

SHA512
19cade185f70438568198b253c0af29a207eee296f10f1afe50f0f9593bcf9e5af449fef3a63347c4b7bff88ecb81c5d895a16be2d5cbb636b260339802f6f1d

Download Submit
memory/2284-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2284-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2284-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2284-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2284-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2776-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2776-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2776-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2776-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2776-8-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2776-1-0x0000000000500000-0x0000000000600000-memory.dmp

Filesize
1024KB

Download
memory/2876-17-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads