tofsee | 5e3b2944312061327384f31234128bb4ddba910790f8a529f10b40de4330446d

General

Target

fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe
Size

11.8MB
MD5

fcf25c18735685029b0faef2d1cb7850
SHA1

71258bc2fe3f91053a9b5756bfe3d94a64196f0d
SHA256

5e3b2944312061327384f31234128bb4ddba910790f8a529f10b40de4330446d
SHA512

13cd2d5029bb63b1fd19f0ef79fa2de728fe2e55d6ce76ed8337d0be7c868f0c29edffbe8b9c6cbd25c604a41d9b0e22b27466bb94ffd1a24f0e9c14514a9415
SSDEEP

49152:CGvEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE:CG

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

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\fikhkvau = "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

2080 netsh.exe

pid	process
2080	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\fikhkvau\ImagePath = "C:\\Windows\\SysWOW64\\fikhkvau\\hebzlwlz.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2424 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

hebzlwlz.exe

pid process

2548 hebzlwlz.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

hebzlwlz.exe

description pid process target process

PID 2548 set thread context of 2424 2548 hebzlwlz.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

2568 sc.exe
2648 sc.exe
2580 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2424	svchost.exe

pid	process
2548	hebzlwlz.exe

description	pid	process	target process
PID 2548 set thread context of 2424	2548	hebzlwlz.exe	svchost.exe

pid	process
2568	sc.exe
2648	sc.exe
2580	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exehebzlwlz.exe

description	pid	process	target process
PID 2224 wrote to memory of 2904	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	cmd.exe
PID 2224 wrote to memory of 2904	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	cmd.exe
PID 2224 wrote to memory of 2904	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	cmd.exe
PID 2224 wrote to memory of 2904	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	cmd.exe
PID 2224 wrote to memory of 2684	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	cmd.exe
PID 2224 wrote to memory of 2684	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	cmd.exe
PID 2224 wrote to memory of 2684	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	cmd.exe
PID 2224 wrote to memory of 2684	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	cmd.exe
PID 2224 wrote to memory of 2568	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	sc.exe
PID 2224 wrote to memory of 2568	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	sc.exe
PID 2224 wrote to memory of 2568	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	sc.exe
PID 2224 wrote to memory of 2568	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	sc.exe
PID 2224 wrote to memory of 2648	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	sc.exe
PID 2224 wrote to memory of 2648	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	sc.exe
PID 2224 wrote to memory of 2648	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	sc.exe
PID 2224 wrote to memory of 2648	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	sc.exe
PID 2224 wrote to memory of 2580	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	sc.exe
PID 2224 wrote to memory of 2580	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	sc.exe
PID 2224 wrote to memory of 2580	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	sc.exe
PID 2224 wrote to memory of 2580	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	sc.exe
PID 2224 wrote to memory of 2080	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	netsh.exe
PID 2224 wrote to memory of 2080	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	netsh.exe
PID 2224 wrote to memory of 2080	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	netsh.exe
PID 2224 wrote to memory of 2080	2224	fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe	netsh.exe
PID 2548 wrote to memory of 2424	2548	hebzlwlz.exe	svchost.exe
PID 2548 wrote to memory of 2424	2548	hebzlwlz.exe	svchost.exe
PID 2548 wrote to memory of 2424	2548	hebzlwlz.exe	svchost.exe
PID 2548 wrote to memory of 2424	2548	hebzlwlz.exe	svchost.exe
PID 2548 wrote to memory of 2424	2548	hebzlwlz.exe	svchost.exe
PID 2548 wrote to memory of 2424	2548	hebzlwlz.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2224

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fikhkvau\
2⤵
PID:2904

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hebzlwlz.exe" C:\Windows\SysWOW64\fikhkvau\
2⤵
PID:2684

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create fikhkvau binPath= "C:\Windows\SysWOW64\fikhkvau\hebzlwlz.exe /d\"C:\Users\Admin\AppData\Local\Temp\fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2568

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description fikhkvau "wifi internet conection"
2⤵
- Launches sc.exe
PID:2648

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start fikhkvau
2⤵
- Launches sc.exe
PID:2580

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:2080

C:\Windows\SysWOW64\fikhkvau\hebzlwlz.exe
C:\Windows\SysWOW64\fikhkvau\hebzlwlz.exe /d"C:\Users\Admin\AppData\Local\Temp\fcf25c18735685029b0faef2d1cb7850_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2548

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2424

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\hebzlwlz.exe
Filesize
12.1MB

MD5
124808b98186738783b73f6ac1b856e2

SHA1
363cd43ec4b4629a6c280a03af071be42cf4d2d2

SHA256
ed047244a7932636eeaaec32d75f6f2a2d59797fb06b719a3d24a99b14c7c161

SHA512
b8d38a393c6efe5b756848c1ed6b9fa301d1d0250aad313174d6690899072716b5fc9656e5922a8c8da42b0aff3d54f91a6761d5805f86d5e7240e11c35d1fc0

Download Submit
memory/2224-1-0x0000000000CA0000-0x0000000000DA0000-memory.dmp

Filesize
1024KB

Download
memory/2224-2-0x00000000002B0000-0x00000000002C3000-memory.dmp

Filesize
76KB

Download
memory/2224-4-0x0000000000400000-0x0000000000C14000-memory.dmp

Filesize
8.1MB

Download
memory/2224-8-0x00000000002B0000-0x00000000002C3000-memory.dmp

Filesize
76KB

Download
memory/2224-7-0x0000000000400000-0x0000000000C14000-memory.dmp

Filesize
8.1MB

Download
memory/2424-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2424-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2424-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2424-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2424-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2424-22-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2548-11-0x0000000000400000-0x0000000000C14000-memory.dmp

Filesize
8.1MB

Download
memory/2548-10-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2548-16-0x0000000000400000-0x0000000000C14000-memory.dmp

Filesize
8.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads