tofsee | 0554a5c223f9ad4748018db751a20f23589c8ed93a5f118941ea6e5a0b794cd1

General

Target

f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe
Size

12.9MB
MD5

f427dd2a74d5dc82ea884b973d2df32b
SHA1

74dbbe53e39aba884a87de297cf6e71fe0a7929a
SHA256

0554a5c223f9ad4748018db751a20f23589c8ed93a5f118941ea6e5a0b794cd1
SHA512

0630e26f057741e8688205d3994c66429804b89aa0d72380e892aecbd275dc8f7d4cf0e2d61eb57855b50aab910208a84b125aa16f76041504e108612cfc934e
SSDEEP

24576:CjDuKnh7YzbKBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBl:Cnh

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\rwzpnicf = "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

2748 netsh.exe

pid	process
2748	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\rwzpnicf\ImagePath = "C:\\Windows\\SysWOW64\\rwzpnicf\\bsslbabp.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2444 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

bsslbabp.exe

pid process

2624 bsslbabp.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

bsslbabp.exe

description pid process target process

PID 2624 set thread context of 2444 2624 bsslbabp.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

2672 sc.exe
2828 sc.exe
2720 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2444	svchost.exe

pid	process
2624	bsslbabp.exe

description	pid	process	target process
PID 2624 set thread context of 2444	2624	bsslbabp.exe	svchost.exe

pid	process
2672	sc.exe
2828	sc.exe
2720	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exebsslbabp.exe

description	pid	process	target process
PID 2332 wrote to memory of 2156	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	cmd.exe
PID 2332 wrote to memory of 2156	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	cmd.exe
PID 2332 wrote to memory of 2156	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	cmd.exe
PID 2332 wrote to memory of 2156	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	cmd.exe
PID 2332 wrote to memory of 2632	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	cmd.exe
PID 2332 wrote to memory of 2632	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	cmd.exe
PID 2332 wrote to memory of 2632	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	cmd.exe
PID 2332 wrote to memory of 2632	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	cmd.exe
PID 2332 wrote to memory of 2720	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 2332 wrote to memory of 2720	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 2332 wrote to memory of 2720	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 2332 wrote to memory of 2720	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 2332 wrote to memory of 2672	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 2332 wrote to memory of 2672	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 2332 wrote to memory of 2672	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 2332 wrote to memory of 2672	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 2332 wrote to memory of 2828	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 2332 wrote to memory of 2828	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 2332 wrote to memory of 2828	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 2332 wrote to memory of 2828	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	sc.exe
PID 2332 wrote to memory of 2748	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	netsh.exe
PID 2332 wrote to memory of 2748	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	netsh.exe
PID 2332 wrote to memory of 2748	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	netsh.exe
PID 2332 wrote to memory of 2748	2332	f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe	netsh.exe
PID 2624 wrote to memory of 2444	2624	bsslbabp.exe	svchost.exe
PID 2624 wrote to memory of 2444	2624	bsslbabp.exe	svchost.exe
PID 2624 wrote to memory of 2444	2624	bsslbabp.exe	svchost.exe
PID 2624 wrote to memory of 2444	2624	bsslbabp.exe	svchost.exe
PID 2624 wrote to memory of 2444	2624	bsslbabp.exe	svchost.exe
PID 2624 wrote to memory of 2444	2624	bsslbabp.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2332

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rwzpnicf\
2⤵
PID:2156

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bsslbabp.exe" C:\Windows\SysWOW64\rwzpnicf\
2⤵
PID:2632

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create rwzpnicf binPath= "C:\Windows\SysWOW64\rwzpnicf\bsslbabp.exe /d\"C:\Users\Admin\AppData\Local\Temp\f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2720

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description rwzpnicf "wifi internet conection"
2⤵
- Launches sc.exe
PID:2672

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start rwzpnicf
2⤵
- Launches sc.exe
PID:2828

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:2748

C:\Windows\SysWOW64\rwzpnicf\bsslbabp.exe
C:\Windows\SysWOW64\rwzpnicf\bsslbabp.exe /d"C:\Users\Admin\AppData\Local\Temp\f427dd2a74d5dc82ea884b973d2df32b_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2624

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2444

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\bsslbabp.exe
Filesize
12.1MB

MD5
37dc5a29de7a4279623d40801248127a

SHA1
d690fcea7eca872467fdcb09eb2a9f6af4bfc422

SHA256
09260a7631fdaf443b17259c63375aeb7991fcf165f2e97998c4631e80513f06

SHA512
cc9e1dd9f4171939b054649b95397a07b9531e570d974a7580f75cd96bd42565342474d1b22878a14a3e964b50f7c85631039446577a9893cb877f320fb7904b

Download Submit
memory/2332-4-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2332-3-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2332-8-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2332-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/2444-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2444-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2444-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2444-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2444-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2444-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2624-10-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2624-16-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2624-9-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads