tofsee | 2b7573c9e8ecc29efd019b7aa743c09a45cb4ec3974e626cd6be6d044eaf4011

General

Target

f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe
Size

14.9MB
MD5

f34d8f6b5347bdcd842d87c92c707971
SHA1

0ef31e983de6af6f1ddd10f12627c934b2bcd117
SHA256

2b7573c9e8ecc29efd019b7aa743c09a45cb4ec3974e626cd6be6d044eaf4011
SHA512

c98f57420fb64dae46616d3405fa7035921592cf88b3d4da22bc5e704992b5c21540194ab13593e98cda9550cf3bb22ca8615aab7441985abe5805c61393c098
SSDEEP

24576:djCj10HSqGgeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee:d/D

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\bjnoqncr = "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

2928 netsh.exe

pid	process
2928	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\bjnoqncr\ImagePath = "C:\\Windows\\SysWOW64\\bjnoqncr\\jnqmyhea.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2084 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

jnqmyhea.exe

pid process

2536 jnqmyhea.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

jnqmyhea.exe

description pid process target process

PID 2536 set thread context of 2084 2536 jnqmyhea.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

2584 sc.exe
2676 sc.exe
2552 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2084	svchost.exe

pid	process
2536	jnqmyhea.exe

description	pid	process	target process
PID 2536 set thread context of 2084	2536	jnqmyhea.exe	svchost.exe

pid	process
2584	sc.exe
2676	sc.exe
2552	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exejnqmyhea.exe

description	pid	process	target process
PID 1644 wrote to memory of 2528	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	cmd.exe
PID 1644 wrote to memory of 2528	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	cmd.exe
PID 1644 wrote to memory of 2528	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	cmd.exe
PID 1644 wrote to memory of 2528	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	cmd.exe
PID 1644 wrote to memory of 2660	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	cmd.exe
PID 1644 wrote to memory of 2660	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	cmd.exe
PID 1644 wrote to memory of 2660	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	cmd.exe
PID 1644 wrote to memory of 2660	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	cmd.exe
PID 1644 wrote to memory of 2584	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	sc.exe
PID 1644 wrote to memory of 2584	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	sc.exe
PID 1644 wrote to memory of 2584	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	sc.exe
PID 1644 wrote to memory of 2584	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	sc.exe
PID 1644 wrote to memory of 2676	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	sc.exe
PID 1644 wrote to memory of 2676	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	sc.exe
PID 1644 wrote to memory of 2676	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	sc.exe
PID 1644 wrote to memory of 2676	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	sc.exe
PID 1644 wrote to memory of 2552	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	sc.exe
PID 1644 wrote to memory of 2552	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	sc.exe
PID 1644 wrote to memory of 2552	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	sc.exe
PID 1644 wrote to memory of 2552	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	sc.exe
PID 1644 wrote to memory of 2928	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	netsh.exe
PID 1644 wrote to memory of 2928	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	netsh.exe
PID 1644 wrote to memory of 2928	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	netsh.exe
PID 1644 wrote to memory of 2928	1644	f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe	netsh.exe
PID 2536 wrote to memory of 2084	2536	jnqmyhea.exe	svchost.exe
PID 2536 wrote to memory of 2084	2536	jnqmyhea.exe	svchost.exe
PID 2536 wrote to memory of 2084	2536	jnqmyhea.exe	svchost.exe
PID 2536 wrote to memory of 2084	2536	jnqmyhea.exe	svchost.exe
PID 2536 wrote to memory of 2084	2536	jnqmyhea.exe	svchost.exe
PID 2536 wrote to memory of 2084	2536	jnqmyhea.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1644

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bjnoqncr\
2⤵
PID:2528

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jnqmyhea.exe" C:\Windows\SysWOW64\bjnoqncr\
2⤵
PID:2660

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create bjnoqncr binPath= "C:\Windows\SysWOW64\bjnoqncr\jnqmyhea.exe /d\"C:\Users\Admin\AppData\Local\Temp\f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2584

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description bjnoqncr "wifi internet conection"
2⤵
- Launches sc.exe
PID:2676

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start bjnoqncr
2⤵
- Launches sc.exe
PID:2552

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:2928

C:\Windows\SysWOW64\bjnoqncr\jnqmyhea.exe
C:\Windows\SysWOW64\bjnoqncr\jnqmyhea.exe /d"C:\Users\Admin\AppData\Local\Temp\f34d8f6b5347bdcd842d87c92c707971_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2536

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2084

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\jnqmyhea.exe
Filesize
12.0MB

MD5
910118cffb237f83756deb081ecee84b

SHA1
dc463bfda5b0fa4e4230dbf86bb7a0c6763a7e3e

SHA256
dda56b6b6807419a79491f22c80ac7a4780aceeea87e1e2f8c52db2e085c4461

SHA512
f4e02f1f81151b3795ca2a920ef3a7de181c14c764a093463e5b6c9c6d533899b6ddbe271be92899145ee30e81ba2bbea8b47f4f6f359d186a29c9d598b7a54d

Download Submit
memory/1644-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/1644-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/1644-4-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1644-7-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2084-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2084-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2084-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2084-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2084-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2084-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2084-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2536-10-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2536-9-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/2536-15-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads