tofsee | 229ed2d5a7975a4e8ed4d256b164708b0ba3f9051384c73e6a0061d810ddbb45

General

Target

f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe
Size

12.4MB
MD5

f46546906c3dcd4743698822d7caa78b
SHA1

db1a2370650583b6a8e4db11e7c9392ec57c1fd9
SHA256

229ed2d5a7975a4e8ed4d256b164708b0ba3f9051384c73e6a0061d810ddbb45
SHA512

73c1dd0a4496411a9b0696a9afcbbd266ef3cc84f4b8e601b40d75e2321fd6158ea3e5950af3a6ff98c81ba021139364d3e12ba3076d6b1654052322c8edc079
SSDEEP

12288:ABgw6aInPRfmCzFT+PUvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv:pw6tHRT+P

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\vmcuyujl = "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

2544 netsh.exe

pid	process
2544	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\vmcuyujl\ImagePath = "C:\\Windows\\SysWOW64\\vmcuyujl\\swzvhqnj.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2416 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

swzvhqnj.exe

pid process

2408 swzvhqnj.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

swzvhqnj.exe

description pid process target process

PID 2408 set thread context of 2416 2408 swzvhqnj.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
2728 sc.exe
2884 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2416	svchost.exe

pid	process
2408	swzvhqnj.exe

description	pid	process	target process
PID 2408 set thread context of 2416	2408	swzvhqnj.exe	svchost.exe

pid	process
2504	sc.exe
2728	sc.exe
2884	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exeswzvhqnj.exe

description	pid	process	target process
PID 2888 wrote to memory of 2564	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	cmd.exe
PID 2888 wrote to memory of 2564	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	cmd.exe
PID 2888 wrote to memory of 2564	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	cmd.exe
PID 2888 wrote to memory of 2564	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	cmd.exe
PID 2888 wrote to memory of 2944	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	cmd.exe
PID 2888 wrote to memory of 2944	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	cmd.exe
PID 2888 wrote to memory of 2944	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	cmd.exe
PID 2888 wrote to memory of 2944	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	cmd.exe
PID 2888 wrote to memory of 2504	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	sc.exe
PID 2888 wrote to memory of 2504	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	sc.exe
PID 2888 wrote to memory of 2504	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	sc.exe
PID 2888 wrote to memory of 2504	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	sc.exe
PID 2888 wrote to memory of 2728	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	sc.exe
PID 2888 wrote to memory of 2728	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	sc.exe
PID 2888 wrote to memory of 2728	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	sc.exe
PID 2888 wrote to memory of 2728	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	sc.exe
PID 2888 wrote to memory of 2884	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	sc.exe
PID 2888 wrote to memory of 2884	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	sc.exe
PID 2888 wrote to memory of 2884	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	sc.exe
PID 2888 wrote to memory of 2884	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	sc.exe
PID 2888 wrote to memory of 2544	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	netsh.exe
PID 2888 wrote to memory of 2544	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	netsh.exe
PID 2888 wrote to memory of 2544	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	netsh.exe
PID 2888 wrote to memory of 2544	2888	f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe	netsh.exe
PID 2408 wrote to memory of 2416	2408	swzvhqnj.exe	svchost.exe
PID 2408 wrote to memory of 2416	2408	swzvhqnj.exe	svchost.exe
PID 2408 wrote to memory of 2416	2408	swzvhqnj.exe	svchost.exe
PID 2408 wrote to memory of 2416	2408	swzvhqnj.exe	svchost.exe
PID 2408 wrote to memory of 2416	2408	swzvhqnj.exe	svchost.exe
PID 2408 wrote to memory of 2416	2408	swzvhqnj.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2888

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vmcuyujl\
2⤵
PID:2564

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\swzvhqnj.exe" C:\Windows\SysWOW64\vmcuyujl\
2⤵
PID:2944

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create vmcuyujl binPath= "C:\Windows\SysWOW64\vmcuyujl\swzvhqnj.exe /d\"C:\Users\Admin\AppData\Local\Temp\f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2504

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description vmcuyujl "wifi internet conection"
2⤵
- Launches sc.exe
PID:2728

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start vmcuyujl
2⤵
- Launches sc.exe
PID:2884

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:2544

C:\Windows\SysWOW64\vmcuyujl\swzvhqnj.exe
C:\Windows\SysWOW64\vmcuyujl\swzvhqnj.exe /d"C:\Users\Admin\AppData\Local\Temp\f46546906c3dcd4743698822d7caa78b_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2408

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2416

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\swzvhqnj.exe

Filesize
13.7MB

MD5
f43b60fec4a720300f9b930d726383cc

SHA1
592bd2f3d3af0375c86decee14b6c8cec89dac2b

SHA256
947f123f7b8c30f86d3643066285f3e94e1da2c0691edcc35f1866e4dad010bc

SHA512
2e72f6a426717fd5a2fd87e689f90225e87d50b0e8f6383e3e2bd4cc78d320c71080f1fb40f278c84f0a5f31556eb71e3877129563c4fe53e2df965b1532a03c

Download Submit
memory/2408-10-0x00000000004E0000-0x00000000005E0000-memory.dmp

Filesize
1024KB

Download
memory/2408-18-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2408-11-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2416-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2416-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2416-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2416-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2416-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2416-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2416-22-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2888-8-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2888-7-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2888-3-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2888-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2888-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads