tofsee | d27317496cdfcf567823853f13ba4cca1d89c026034ffff2b9e776374d388010

General

Target

fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe
Size

11.8MB
MD5

fd4589d275f0e0321e31a8b317ea8695
SHA1

8e5e57f7aa3e5554072e2de2a00d0ba039c3a56d
SHA256

d27317496cdfcf567823853f13ba4cca1d89c026034ffff2b9e776374d388010
SHA512

11b1fd8542ae7bb85447f51571307303162f3ea5f8d21015cc801d267e5d519832cca8bdbdc99202a0353963c580e9da864824a3922166a0b1c5093c8d0541a4
SSDEEP

12288:dl5qOcvT9o+egMU+HoWfprc0sssssssssssssssssssssssssssssssssssssssX:vcvT9ofeqrc

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\ntygrtjg = "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

2852 netsh.exe

pid	process
2852	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\ntygrtjg\ImagePath = "C:\\Windows\\SysWOW64\\ntygrtjg\\wfvjkynt.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2500 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

wfvjkynt.exe

pid process

2652 wfvjkynt.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

wfvjkynt.exe

description pid process target process

PID 2652 set thread context of 2500 2652 wfvjkynt.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

2896 sc.exe
2888 sc.exe
2776 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2500	svchost.exe

pid	process
2652	wfvjkynt.exe

description	pid	process	target process
PID 2652 set thread context of 2500	2652	wfvjkynt.exe	svchost.exe

pid	process
2896	sc.exe
2888	sc.exe
2776	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exewfvjkynt.exe

description	pid	process	target process
PID 1584 wrote to memory of 2348	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	cmd.exe
PID 1584 wrote to memory of 2348	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	cmd.exe
PID 1584 wrote to memory of 2348	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	cmd.exe
PID 1584 wrote to memory of 2348	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	cmd.exe
PID 1584 wrote to memory of 2740	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	cmd.exe
PID 1584 wrote to memory of 2740	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	cmd.exe
PID 1584 wrote to memory of 2740	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	cmd.exe
PID 1584 wrote to memory of 2740	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	cmd.exe
PID 1584 wrote to memory of 2896	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	sc.exe
PID 1584 wrote to memory of 2896	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	sc.exe
PID 1584 wrote to memory of 2896	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	sc.exe
PID 1584 wrote to memory of 2896	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	sc.exe
PID 1584 wrote to memory of 2888	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	sc.exe
PID 1584 wrote to memory of 2888	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	sc.exe
PID 1584 wrote to memory of 2888	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	sc.exe
PID 1584 wrote to memory of 2888	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	sc.exe
PID 1584 wrote to memory of 2776	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	sc.exe
PID 1584 wrote to memory of 2776	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	sc.exe
PID 1584 wrote to memory of 2776	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	sc.exe
PID 1584 wrote to memory of 2776	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	sc.exe
PID 1584 wrote to memory of 2852	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	netsh.exe
PID 1584 wrote to memory of 2852	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	netsh.exe
PID 1584 wrote to memory of 2852	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	netsh.exe
PID 1584 wrote to memory of 2852	1584	fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe	netsh.exe
PID 2652 wrote to memory of 2500	2652	wfvjkynt.exe	svchost.exe
PID 2652 wrote to memory of 2500	2652	wfvjkynt.exe	svchost.exe
PID 2652 wrote to memory of 2500	2652	wfvjkynt.exe	svchost.exe
PID 2652 wrote to memory of 2500	2652	wfvjkynt.exe	svchost.exe
PID 2652 wrote to memory of 2500	2652	wfvjkynt.exe	svchost.exe
PID 2652 wrote to memory of 2500	2652	wfvjkynt.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1584

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ntygrtjg\
2⤵
PID:2348

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wfvjkynt.exe" C:\Windows\SysWOW64\ntygrtjg\
2⤵
PID:2740

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ntygrtjg binPath= "C:\Windows\SysWOW64\ntygrtjg\wfvjkynt.exe /d\"C:\Users\Admin\AppData\Local\Temp\fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2896

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ntygrtjg "wifi internet conection"
2⤵
- Launches sc.exe
PID:2888

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ntygrtjg
2⤵
- Launches sc.exe
PID:2776

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:2852

C:\Windows\SysWOW64\ntygrtjg\wfvjkynt.exe
C:\Windows\SysWOW64\ntygrtjg\wfvjkynt.exe /d"C:\Users\Admin\AppData\Local\Temp\fd4589d275f0e0321e31a8b317ea8695_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2652

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2500

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

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Downloads

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

Filesize
14.0MB

MD5
38a69989a69b0a01f0143600d36fefd0

SHA1
0ab40783d24ef52a79dee07824ea3b124a904eda

SHA256
d4890f26dcf2dc94617478cb73b94573543bf2c5cde7ab67ad16dd51cf3da71b

SHA512
97a3ea7228c65d670c0a87b235460246b69bd594bcec3fc31e59367fbcc16663826c3f166c0980f0aca341e42dff8f9db175d35d494cb1dd7d51b58fee66f5fc

Download Submit
memory/1584-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/1584-3-0x0000000000240000-0x0000000000253000-memory.dmp

Filesize
76KB

Download
memory/1584-4-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/1584-8-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2500-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2500-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2500-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2500-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2500-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2500-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2652-10-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2652-9-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/2652-16-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads