tofsee | 9f8cabbcbae05dcc56614cd84875ba9c1b0553bacaf210506a8b24cf177fe61c

General

Target

ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe
Size

12.9MB
MD5

ff2d8d859e9c246c9bce95dc1dddb084
SHA1

7ca34991606aaf8d7eb29f5f5c50171336631139
SHA256

9f8cabbcbae05dcc56614cd84875ba9c1b0553bacaf210506a8b24cf177fe61c
SHA512

0898b5e0d887ef5211b0afca20beb6138aad5a4f87e1a9e50b5e55c16d430a31f803a5d4e8574c659ebe48571059088a83898e5471b75d3f367d0ebdb3c29325
SSDEEP

6144:/xd8MIg5KkE8ZQFg60ECx+ylPZbheJlhLixkMPt/t/t/t/t/t/t/t/t/t/t/t/tz:v8MI05ZQFgdgylPY1GkM

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\usyvzmo = "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

2720 netsh.exe

pid	process
2720	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\usyvzmo\ImagePath = "C:\\Windows\\SysWOW64\\usyvzmo\\qzhfyadd.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2436 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

qzhfyadd.exe

pid process

2596 qzhfyadd.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

qzhfyadd.exe

description pid process target process

PID 2596 set thread context of 2436 2596 qzhfyadd.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

2072 sc.exe
2860 sc.exe
2612 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2436	svchost.exe

pid	process
2596	qzhfyadd.exe

description	pid	process	target process
PID 2596 set thread context of 2436	2596	qzhfyadd.exe	svchost.exe

pid	process
2072	sc.exe
2860	sc.exe
2612	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exeqzhfyadd.exe

description	pid	process	target process
PID 2824 wrote to memory of 2056	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	cmd.exe
PID 2824 wrote to memory of 2056	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	cmd.exe
PID 2824 wrote to memory of 2056	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	cmd.exe
PID 2824 wrote to memory of 2056	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	cmd.exe
PID 2824 wrote to memory of 2948	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	cmd.exe
PID 2824 wrote to memory of 2948	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	cmd.exe
PID 2824 wrote to memory of 2948	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	cmd.exe
PID 2824 wrote to memory of 2948	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	cmd.exe
PID 2824 wrote to memory of 2072	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	sc.exe
PID 2824 wrote to memory of 2072	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	sc.exe
PID 2824 wrote to memory of 2072	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	sc.exe
PID 2824 wrote to memory of 2072	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	sc.exe
PID 2824 wrote to memory of 2860	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	sc.exe
PID 2824 wrote to memory of 2860	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	sc.exe
PID 2824 wrote to memory of 2860	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	sc.exe
PID 2824 wrote to memory of 2860	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	sc.exe
PID 2824 wrote to memory of 2612	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	sc.exe
PID 2824 wrote to memory of 2612	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	sc.exe
PID 2824 wrote to memory of 2612	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	sc.exe
PID 2824 wrote to memory of 2612	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	sc.exe
PID 2824 wrote to memory of 2720	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	netsh.exe
PID 2824 wrote to memory of 2720	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	netsh.exe
PID 2824 wrote to memory of 2720	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	netsh.exe
PID 2824 wrote to memory of 2720	2824	ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe	netsh.exe
PID 2596 wrote to memory of 2436	2596	qzhfyadd.exe	svchost.exe
PID 2596 wrote to memory of 2436	2596	qzhfyadd.exe	svchost.exe
PID 2596 wrote to memory of 2436	2596	qzhfyadd.exe	svchost.exe
PID 2596 wrote to memory of 2436	2596	qzhfyadd.exe	svchost.exe
PID 2596 wrote to memory of 2436	2596	qzhfyadd.exe	svchost.exe
PID 2596 wrote to memory of 2436	2596	qzhfyadd.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2824

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\usyvzmo\
2⤵
PID:2056

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qzhfyadd.exe" C:\Windows\SysWOW64\usyvzmo\
2⤵
PID:2948

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create usyvzmo binPath= "C:\Windows\SysWOW64\usyvzmo\qzhfyadd.exe /d\"C:\Users\Admin\AppData\Local\Temp\ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2072

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description usyvzmo "wifi internet conection"
2⤵
- Launches sc.exe
PID:2860

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start usyvzmo
2⤵
- Launches sc.exe
PID:2612

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:2720

C:\Windows\SysWOW64\usyvzmo\qzhfyadd.exe
C:\Windows\SysWOW64\usyvzmo\qzhfyadd.exe /d"C:\Users\Admin\AppData\Local\Temp\ff2d8d859e9c246c9bce95dc1dddb084_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2596

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2436

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify Tools

1

T1562.001

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\qzhfyadd.exe
Filesize
13.5MB

MD5
174342bc64be265075e254a3a0527405

SHA1
a1821854e6702e04d07c28ac7ffd1f738cc396af

SHA256
d8c1d834c7edc39c23e59fd95cd7c16034cda68d9c07cc1b9f256eacd61801ca

SHA512
1e22e0f173103f6899198630fa0ce82d7e2d5cfa9eeb96f833ed4ac17a57fb515f2b7ecf3339020855b8a069aeeb6705d0fd3c492acba036e3160956c87752b2

Download Submit
memory/2436-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2436-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2436-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2436-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2436-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2436-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2596-10-0x0000000003400000-0x0000000003500000-memory.dmp

Filesize
1024KB

Download
memory/2596-15-0x0000000000400000-0x000000000324F000-memory.dmp

Filesize
46.3MB

Download
memory/2596-17-0x0000000000400000-0x000000000324F000-memory.dmp

Filesize
46.3MB

Download
memory/2824-4-0x0000000000400000-0x000000000324F000-memory.dmp

Filesize
46.3MB

Download
memory/2824-3-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2824-8-0x0000000000400000-0x000000000324F000-memory.dmp

Filesize
46.3MB

Download
memory/2824-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads