tofsee | b3ef346a16f90c3811847840e66397ca8c9938707e37cfd274ee6bb9004c741d

General

Target

f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe
Size

11.5MB
MD5

f4c9ca0aae067a11649370278de2a937
SHA1

e1fc4e42abfe1accb7e200d21f1f0d329838e81e
SHA256

b3ef346a16f90c3811847840e66397ca8c9938707e37cfd274ee6bb9004c741d
SHA512

8062c679c66c895dd3173ccfa56eacf6b5dbeaa6c5d60712ba3c59f05cddd053ff79209486fc0c9063973ba06e9aa32532d58cd74cf56a5e255b2550d95ae487
SSDEEP

24576:OjCj10HSqGgeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeO:O/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\hwhomyjy = "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

2724 netsh.exe

pid	process
2724	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\hwhomyjy\ImagePath = "C:\\Windows\\SysWOW64\\hwhomyjy\\hqywpruu.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2484 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

hqywpruu.exe

pid process

3024 hqywpruu.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

hqywpruu.exe

description pid process target process

PID 3024 set thread context of 2484 3024 hqywpruu.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

2564 sc.exe
2592 sc.exe
2392 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2484	svchost.exe

pid	process
3024	hqywpruu.exe

description	pid	process	target process
PID 3024 set thread context of 2484	3024	hqywpruu.exe	svchost.exe

pid	process
2564	sc.exe
2592	sc.exe
2392	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exehqywpruu.exe

description	pid	process	target process
PID 1444 wrote to memory of 2372	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	cmd.exe
PID 1444 wrote to memory of 2372	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	cmd.exe
PID 1444 wrote to memory of 2372	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	cmd.exe
PID 1444 wrote to memory of 2372	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	cmd.exe
PID 1444 wrote to memory of 2520	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	cmd.exe
PID 1444 wrote to memory of 2520	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	cmd.exe
PID 1444 wrote to memory of 2520	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	cmd.exe
PID 1444 wrote to memory of 2520	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	cmd.exe
PID 1444 wrote to memory of 2392	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2392	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2392	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2392	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2564	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2564	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2564	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2564	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2592	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2592	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2592	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2592	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	sc.exe
PID 1444 wrote to memory of 2724	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	netsh.exe
PID 1444 wrote to memory of 2724	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	netsh.exe
PID 1444 wrote to memory of 2724	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	netsh.exe
PID 1444 wrote to memory of 2724	1444	f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe	netsh.exe
PID 3024 wrote to memory of 2484	3024	hqywpruu.exe	svchost.exe
PID 3024 wrote to memory of 2484	3024	hqywpruu.exe	svchost.exe
PID 3024 wrote to memory of 2484	3024	hqywpruu.exe	svchost.exe
PID 3024 wrote to memory of 2484	3024	hqywpruu.exe	svchost.exe
PID 3024 wrote to memory of 2484	3024	hqywpruu.exe	svchost.exe
PID 3024 wrote to memory of 2484	3024	hqywpruu.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1444

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hwhomyjy\
2⤵
PID:2372

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hqywpruu.exe" C:\Windows\SysWOW64\hwhomyjy\
2⤵
PID:2520

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create hwhomyjy binPath= "C:\Windows\SysWOW64\hwhomyjy\hqywpruu.exe /d\"C:\Users\Admin\AppData\Local\Temp\f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2392

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description hwhomyjy "wifi internet conection"
2⤵
- Launches sc.exe
PID:2564

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start hwhomyjy
2⤵
- Launches sc.exe
PID:2592

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:2724

C:\Windows\SysWOW64\hwhomyjy\hqywpruu.exe
C:\Windows\SysWOW64\hwhomyjy\hqywpruu.exe /d"C:\Users\Admin\AppData\Local\Temp\f4c9ca0aae067a11649370278de2a937_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3024

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2484

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\hqywpruu.exe

Filesize
12.1MB

MD5
1538ec74bbf895fb5660c41ca0e76312

SHA1
a45592bb805e84a551ce063015b019152ec825cb

SHA256
29329863f5b61e2ca440b21bc4f55a659bc22b675dea9b05f41a5aed6b4de17f

SHA512
8c349703c6935034ad1f2e1b566fed60351702d7f3278c813cecdacf5c18bc7649e1b7f439f1f94cff3285e812aad325e7f1e9e8a232c4600407b93e226ed5d2

Download Submit
memory/1444-4-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1444-3-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1444-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/1444-8-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2484-9-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2484-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2484-12-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2484-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2484-19-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2484-20-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2484-21-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/3024-14-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/3024-15-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads