tofsee | a432105cad3627783fdfab8246f6a09d7d97c796f899dd23af669d46a174a898

General

Target

fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe
Size

10.5MB
MD5

fcff70f4c751ff498a183843ae379351
SHA1

9178bf92b5b7592633f8a21bd7729b5158e99a44
SHA256

a432105cad3627783fdfab8246f6a09d7d97c796f899dd23af669d46a174a898
SHA512

d3523328c186339249ed273d086b053c6035eb7f7d0deaf67377f8d7e14ff324c6a098360c84be07872a1c8b7ad85029a630f7cb52bfdeeab01e8baa55eebc87
SSDEEP

12288:sc8EvSAInj67ygU57H7zKEVlM++++++++++++++++++++++++++++++++++++++G:s0vSAImHU5

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\nasllobi = "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

2584 netsh.exe

pid	process
2584	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\nasllobi\ImagePath = "C:\\Windows\\SysWOW64\\nasllobi\\kxwblwcg.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2540 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

kxwblwcg.exe

pid process

2680 kxwblwcg.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

kxwblwcg.exe

description pid process target process

PID 2680 set thread context of 2540 2680 kxwblwcg.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

2640 sc.exe
2536 sc.exe
2740 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2540	svchost.exe

pid	process
2680	kxwblwcg.exe

description	pid	process	target process
PID 2680 set thread context of 2540	2680	kxwblwcg.exe	svchost.exe

pid	process
2640	sc.exe
2536	sc.exe
2740	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

fcff70f4c751ff498a183843ae379351_JaffaCakes118.exekxwblwcg.exe

description	pid	process	target process
PID 2324 wrote to memory of 2512	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	cmd.exe
PID 2324 wrote to memory of 2512	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	cmd.exe
PID 2324 wrote to memory of 2512	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	cmd.exe
PID 2324 wrote to memory of 2512	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	cmd.exe
PID 2324 wrote to memory of 2560	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	cmd.exe
PID 2324 wrote to memory of 2560	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	cmd.exe
PID 2324 wrote to memory of 2560	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	cmd.exe
PID 2324 wrote to memory of 2560	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	cmd.exe
PID 2324 wrote to memory of 2640	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	sc.exe
PID 2324 wrote to memory of 2640	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	sc.exe
PID 2324 wrote to memory of 2640	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	sc.exe
PID 2324 wrote to memory of 2640	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	sc.exe
PID 2324 wrote to memory of 2536	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	sc.exe
PID 2324 wrote to memory of 2536	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	sc.exe
PID 2324 wrote to memory of 2536	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	sc.exe
PID 2324 wrote to memory of 2536	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	sc.exe
PID 2324 wrote to memory of 2740	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	sc.exe
PID 2324 wrote to memory of 2740	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	sc.exe
PID 2324 wrote to memory of 2740	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	sc.exe
PID 2324 wrote to memory of 2740	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	sc.exe
PID 2324 wrote to memory of 2584	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	netsh.exe
PID 2324 wrote to memory of 2584	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	netsh.exe
PID 2324 wrote to memory of 2584	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	netsh.exe
PID 2324 wrote to memory of 2584	2324	fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe	netsh.exe
PID 2680 wrote to memory of 2540	2680	kxwblwcg.exe	svchost.exe
PID 2680 wrote to memory of 2540	2680	kxwblwcg.exe	svchost.exe
PID 2680 wrote to memory of 2540	2680	kxwblwcg.exe	svchost.exe
PID 2680 wrote to memory of 2540	2680	kxwblwcg.exe	svchost.exe
PID 2680 wrote to memory of 2540	2680	kxwblwcg.exe	svchost.exe
PID 2680 wrote to memory of 2540	2680	kxwblwcg.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2324

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nasllobi\
2⤵
PID:2512

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kxwblwcg.exe" C:\Windows\SysWOW64\nasllobi\
2⤵
PID:2560

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create nasllobi binPath= "C:\Windows\SysWOW64\nasllobi\kxwblwcg.exe /d\"C:\Users\Admin\AppData\Local\Temp\fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2640

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description nasllobi "wifi internet conection"
2⤵
- Launches sc.exe
PID:2536

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start nasllobi
2⤵
- Launches sc.exe
PID:2740

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:2584

C:\Windows\SysWOW64\nasllobi\kxwblwcg.exe
C:\Windows\SysWOW64\nasllobi\kxwblwcg.exe /d"C:\Users\Admin\AppData\Local\Temp\fcff70f4c751ff498a183843ae379351_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2680

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2540

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\kxwblwcg.exe

Filesize
11.2MB

MD5
8cf5ef7a5e51b18535dcc9323cf44087

SHA1
db83d544874cdcdaba1a6d7de112423060b527b5

SHA256
aab9a0c1db90b5133cb1ac5f3f05f07fd5655f2677b097b621c1aa8254d98880

SHA512
78a10043274c37b84fa1a65c0a9aa2b5b40f7958b0bb25af614f3bd86586b3aa6001c802c0e3b3b1256ffe8c5966e01ab116060373a4bee523443a32c2b1c692

Download Submit
memory/2324-2-0x0000000000A10000-0x0000000000B10000-memory.dmp

Filesize
1024KB

Download
memory/2324-3-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2324-4-0x0000000000400000-0x00000000008F0000-memory.dmp

Filesize
4.9MB

Download
memory/2324-7-0x0000000000400000-0x00000000008F0000-memory.dmp

Filesize
4.9MB

Download
memory/2540-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2540-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2540-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2540-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2540-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2540-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2540-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2680-11-0x0000000000400000-0x00000000008F0000-memory.dmp

Filesize
4.9MB

Download
memory/2680-9-0x0000000000A70000-0x0000000000B70000-memory.dmp

Filesize
1024KB

Download
memory/2680-15-0x0000000000400000-0x00000000008F0000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads