tofsee | 2c2ad8fb26b2481604773c7755cc27156ea9a7c6d19993562bd7f3f0777e3931

General

Target

f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe
Size

12.5MB
MD5

f474b3b24c28e9731d49632cf52cb20a
SHA1

379128e922c6174dd9fe7f16eb1428300860ae00
SHA256

2c2ad8fb26b2481604773c7755cc27156ea9a7c6d19993562bd7f3f0777e3931
SHA512

226e7ab1d0f5894532ab390960ceb10a6c5ffff97bff475fd7282eafdcd65e4e86251893950c58e48a3e2235ca4ea32f77af44ab084956048ae0e2df0d5151a8
SSDEEP

98304:FNWUlllllllllllllllllllllllllllllllllllllllllllllllllllllllllllF:DW

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

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\zvagoolm = "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

2644 netsh.exe

pid	process
2644	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\zvagoolm\ImagePath = "C:\\Windows\\SysWOW64\\zvagoolm\\egbhanx.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2740 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

egbhanx.exe

pid process

2580 egbhanx.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

egbhanx.exe

description pid process target process

PID 2580 set thread context of 2740 2580 egbhanx.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

2672 sc.exe
2660 sc.exe
2136 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2740	svchost.exe

pid	process
2580	egbhanx.exe

description	pid	process	target process
PID 2580 set thread context of 2740	2580	egbhanx.exe	svchost.exe

pid	process
2672	sc.exe
2660	sc.exe
2136	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exeegbhanx.exe

description	pid	process	target process
PID 2228 wrote to memory of 3024	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	cmd.exe
PID 2228 wrote to memory of 3024	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	cmd.exe
PID 2228 wrote to memory of 3024	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	cmd.exe
PID 2228 wrote to memory of 3024	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	cmd.exe
PID 2228 wrote to memory of 1796	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	cmd.exe
PID 2228 wrote to memory of 1796	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	cmd.exe
PID 2228 wrote to memory of 1796	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	cmd.exe
PID 2228 wrote to memory of 1796	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	cmd.exe
PID 2228 wrote to memory of 2672	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2672	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2672	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2672	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2660	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2660	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2660	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2660	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2136	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2136	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2136	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2136	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	sc.exe
PID 2228 wrote to memory of 2644	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	netsh.exe
PID 2228 wrote to memory of 2644	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	netsh.exe
PID 2228 wrote to memory of 2644	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	netsh.exe
PID 2228 wrote to memory of 2644	2228	f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe	netsh.exe
PID 2580 wrote to memory of 2740	2580	egbhanx.exe	svchost.exe
PID 2580 wrote to memory of 2740	2580	egbhanx.exe	svchost.exe
PID 2580 wrote to memory of 2740	2580	egbhanx.exe	svchost.exe
PID 2580 wrote to memory of 2740	2580	egbhanx.exe	svchost.exe
PID 2580 wrote to memory of 2740	2580	egbhanx.exe	svchost.exe
PID 2580 wrote to memory of 2740	2580	egbhanx.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2228

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zvagoolm\
2⤵
PID:3024

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\egbhanx.exe" C:\Windows\SysWOW64\zvagoolm\
2⤵
PID:1796

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create zvagoolm binPath= "C:\Windows\SysWOW64\zvagoolm\egbhanx.exe /d\"C:\Users\Admin\AppData\Local\Temp\f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2672

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description zvagoolm "wifi internet conection"
2⤵
- Launches sc.exe
PID:2660

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start zvagoolm
2⤵
- Launches sc.exe
PID:2136

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:2644

C:\Windows\SysWOW64\zvagoolm\egbhanx.exe
C:\Windows\SysWOW64\zvagoolm\egbhanx.exe /d"C:\Users\Admin\AppData\Local\Temp\f474b3b24c28e9731d49632cf52cb20a_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2580

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2740

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\egbhanx.exe
Filesize
14.6MB

MD5
e65def10047ae2308cfb6ba69379cdb0

SHA1
d112a8a71015a096a82bd5f0ed63137c9a6e7598

SHA256
1b0eca2b6ca9296b6c4177c1dd12a0efead0890a61337799d9701c10f6e783e7

SHA512
f4080e8558641d1a2754e118f0e80c78489fc649607c662b7158800e1518d5ea8a69e66cabc7c4934a5b85c7a05bfe8966869719eb394d04511d814bf6287d39

Download Submit
memory/2228-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2228-4-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/2228-7-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/2228-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2228-1-0x00000000037F0000-0x00000000038F0000-memory.dmp

Filesize
1024KB

Download
memory/2580-18-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/2580-10-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/2580-16-0x0000000003830000-0x0000000003930000-memory.dmp

Filesize
1024KB

Download
memory/2740-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2740-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2740-20-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2740-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2740-21-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2740-22-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads