tofsee | 58aa25180cf5775c92f460b11fcecd58f5bc03ebd03848b1e025c09864158b1c

General

Target

fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe
Size

10.3MB
MD5

fee7407aceb4cdb6521f6729e4e819c3
SHA1

c3b6fa6d67cf29c1ba69938658b6e1f6bd6169ce
SHA256

58aa25180cf5775c92f460b11fcecd58f5bc03ebd03848b1e025c09864158b1c
SHA512

e6f0bb159d4f42c68229a9794cdfdcfbb2c8835d63495b4766b5fc757525cdcbe4052300e89fa7ada68212b5e1e84e0dfed71655cdf972a9bf71cb659807a8da
SSDEEP

24576:XjCj10HSqGgeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee+:X/D

Score

10^/10

tofsee evasion persistence 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\tgkffenh = "0"	svchost.exe

Creates new service(s) 1 TTPs
persistence

Windows Service
T1543.003
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2504 netsh.exe

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

Processes:

svchost.exe

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

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2372 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

hhezctkc.exe

pid process

2560 hhezctkc.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

hhezctkc.exe

description pid process target process

PID 2560 set thread context of 2372 2560 hhezctkc.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

2540 sc.exe
2580 sc.exe
2432 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2372	svchost.exe

pid	process
2560	hhezctkc.exe

description	pid	process	target process
PID 2560 set thread context of 2372	2560	hhezctkc.exe	svchost.exe

pid	process
2540	sc.exe
2580	sc.exe
2432	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exehhezctkc.exe

description	pid	process	target process
PID 2072 wrote to memory of 2280	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	cmd.exe
PID 2072 wrote to memory of 2280	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	cmd.exe
PID 2072 wrote to memory of 2280	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	cmd.exe
PID 2072 wrote to memory of 2280	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	cmd.exe
PID 2072 wrote to memory of 2012	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	cmd.exe
PID 2072 wrote to memory of 2012	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	cmd.exe
PID 2072 wrote to memory of 2012	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	cmd.exe
PID 2072 wrote to memory of 2012	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	cmd.exe
PID 2072 wrote to memory of 2432	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2072 wrote to memory of 2432	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2072 wrote to memory of 2432	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2072 wrote to memory of 2432	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2072 wrote to memory of 2540	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2072 wrote to memory of 2540	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2072 wrote to memory of 2540	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2072 wrote to memory of 2540	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2072 wrote to memory of 2580	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2072 wrote to memory of 2580	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2072 wrote to memory of 2580	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2072 wrote to memory of 2580	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	sc.exe
PID 2072 wrote to memory of 2504	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	netsh.exe
PID 2072 wrote to memory of 2504	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	netsh.exe
PID 2072 wrote to memory of 2504	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	netsh.exe
PID 2072 wrote to memory of 2504	2072	fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe	netsh.exe
PID 2560 wrote to memory of 2372	2560	hhezctkc.exe	svchost.exe
PID 2560 wrote to memory of 2372	2560	hhezctkc.exe	svchost.exe
PID 2560 wrote to memory of 2372	2560	hhezctkc.exe	svchost.exe
PID 2560 wrote to memory of 2372	2560	hhezctkc.exe	svchost.exe
PID 2560 wrote to memory of 2372	2560	hhezctkc.exe	svchost.exe
PID 2560 wrote to memory of 2372	2560	hhezctkc.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2072

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tgkffenh\
2⤵
PID:2280

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hhezctkc.exe" C:\Windows\SysWOW64\tgkffenh\
2⤵
PID:2012

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create tgkffenh binPath= "C:\Windows\SysWOW64\tgkffenh\hhezctkc.exe /d\"C:\Users\Admin\AppData\Local\Temp\fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2432

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description tgkffenh "wifi internet conection"
2⤵
- Launches sc.exe
PID:2540

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start tgkffenh
2⤵
- Launches sc.exe
PID:2580

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
PID:2504

C:\Windows\SysWOW64\tgkffenh\hhezctkc.exe
C:\Windows\SysWOW64\tgkffenh\hhezctkc.exe /d"C:\Users\Admin\AppData\Local\Temp\fee7407aceb4cdb6521f6729e4e819c3_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2560

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2372

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
11.2MB

MD5
b993e21de804f0f5b8bd424db330bc7f

SHA1
86497446876e2715c6b157b28d48f3249e89c45c

SHA256
e4ed55224fe560b213aded80866971b92ebc9a77a5f1598ec476bf1cdf0eeb70

SHA512
0dd0506a60ac7b9040ef84eef70ef0ab6aa5f7a22c395082d32a2b98af4e8533c6c35bbb3e2b3ae547fcba7c290774e5a78a308511520f98e396ccf8416ade01

Download Submit
memory/2072-1-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/2072-2-0x00000000003A0000-0x00000000003B3000-memory.dmp

Filesize
76KB

Download
memory/2072-3-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2072-6-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2072-7-0x00000000003A0000-0x00000000003B3000-memory.dmp

Filesize
76KB

Download
memory/2372-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2372-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2372-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2372-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2372-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2372-22-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2560-11-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2560-10-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/2560-16-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads