tofsee | 87c6ef971a71bfe43bdfad91943ccfa5be1c895b19a1ae647fa2113664b4d38c

General

Target

82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe
Size

142KB
MD5

82937ed0681d989a3200fed04a37fc57
SHA1

eaee5070f8cbbea37ea0fc03db6cff5380a2b570
SHA256

87c6ef971a71bfe43bdfad91943ccfa5be1c895b19a1ae647fa2113664b4d38c
SHA512

af5e4a3bd849c72171bf1b79c47577ab490ae66a7f93f73fbca0297cc876445489c23bc64d492013f59b6669c4bff10168313e8682a4c1c37caeed5a3867371e
SSDEEP

3072:FN7Re/+fHs+SSoJvnra4BcwfMq/eTW8qrU9f:AW5oJDDBcwt/v6

Score

10^/10

tofsee evasion execution persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

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\yawkatcn = "0"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2588 netsh.exe

pid	process
2588	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\yawkatcn\ImagePath = "C:\\Windows\\SysWOW64\\yawkatcn\\jnueescy.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2564 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

jnueescy.exe

pid process

2772 jnueescy.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

jnueescy.exe

description pid process target process

PID 2772 set thread context of 2564 2772 jnueescy.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

2784 sc.exe
2432 sc.exe
2652 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2564	svchost.exe

pid	process
2772	jnueescy.exe

description	pid	process	target process
PID 2772 set thread context of 2564	2772	jnueescy.exe	svchost.exe

pid	process
2784	sc.exe
2432	sc.exe
2652	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exejnueescy.exe

description	pid	process	target process
PID 2964 wrote to memory of 2112	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	cmd.exe
PID 2964 wrote to memory of 2112	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	cmd.exe
PID 2964 wrote to memory of 2112	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	cmd.exe
PID 2964 wrote to memory of 2112	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	cmd.exe
PID 2964 wrote to memory of 3068	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	cmd.exe
PID 2964 wrote to memory of 3068	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	cmd.exe
PID 2964 wrote to memory of 3068	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	cmd.exe
PID 2964 wrote to memory of 3068	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	cmd.exe
PID 2964 wrote to memory of 2652	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	sc.exe
PID 2964 wrote to memory of 2652	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	sc.exe
PID 2964 wrote to memory of 2652	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	sc.exe
PID 2964 wrote to memory of 2652	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	sc.exe
PID 2964 wrote to memory of 2784	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	sc.exe
PID 2964 wrote to memory of 2784	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	sc.exe
PID 2964 wrote to memory of 2784	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	sc.exe
PID 2964 wrote to memory of 2784	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	sc.exe
PID 2964 wrote to memory of 2432	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	sc.exe
PID 2964 wrote to memory of 2432	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	sc.exe
PID 2964 wrote to memory of 2432	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	sc.exe
PID 2964 wrote to memory of 2432	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	sc.exe
PID 2964 wrote to memory of 2588	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	netsh.exe
PID 2964 wrote to memory of 2588	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	netsh.exe
PID 2964 wrote to memory of 2588	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	netsh.exe
PID 2964 wrote to memory of 2588	2964	82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe	netsh.exe
PID 2772 wrote to memory of 2564	2772	jnueescy.exe	svchost.exe
PID 2772 wrote to memory of 2564	2772	jnueescy.exe	svchost.exe
PID 2772 wrote to memory of 2564	2772	jnueescy.exe	svchost.exe
PID 2772 wrote to memory of 2564	2772	jnueescy.exe	svchost.exe
PID 2772 wrote to memory of 2564	2772	jnueescy.exe	svchost.exe
PID 2772 wrote to memory of 2564	2772	jnueescy.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2964

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yawkatcn\
2⤵
PID:2112

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jnueescy.exe" C:\Windows\SysWOW64\yawkatcn\
2⤵
PID:3068

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create yawkatcn binPath= "C:\Windows\SysWOW64\yawkatcn\jnueescy.exe /d\"C:\Users\Admin\AppData\Local\Temp\82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2652

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description yawkatcn "wifi internet conection"
2⤵
- Launches sc.exe
PID:2784

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start yawkatcn
2⤵
- Launches sc.exe
PID:2432

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:2588

C:\Windows\SysWOW64\yawkatcn\jnueescy.exe
C:\Windows\SysWOW64\yawkatcn\jnueescy.exe /d"C:\Users\Admin\AppData\Local\Temp\82937ed0681d989a3200fed04a37fc57_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2772

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2564

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

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\jnueescy.exe
Filesize
10.2MB

MD5
a089f5851368b32f1064497f53376569

SHA1
9a1b1f33b0efe31b8f3aca33c19ad97e9444d445

SHA256
8d76e9e5aea8e01bc981fe280bec05454f812e7d3074c97cbce7ce3a4fdfa84d

SHA512
7f12f634b1845faf0614d403637aef999666c7a55fd7d3a311889948f69eac42027c02e617f6c1dd23210c5055a3f34853159eef8f6b79b6e08fdc3a99864d38

Download Submit
memory/2564-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2564-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2564-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2564-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2564-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2772-14-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2964-0-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2964-1-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2964-2-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2964-6-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads