tofsee | 1a492ad6535cd37ef709e803d55e4bf9086eac1ffe5d5b3f93fd54c2e0578733

General

Target

0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe
Size

12.7MB
MD5

0ee3b729ec821e3c2cc92e2604836b13
SHA1

cbe962cc4ec46f2c6be966ea974b7320ad72c10e
SHA256

1a492ad6535cd37ef709e803d55e4bf9086eac1ffe5d5b3f93fd54c2e0578733
SHA512

7025ad83ba44a2da1e6e951950f38d7239924c11d21d6931efb29be0660596cdb8c6be42cf9614646c6cb27148ae2979fb149550b7d15cbcc07e9e756bc3ea29
SSDEEP

98304:Z999999999999999999999999999999999999999999999999999999999999999:

Score

10^/10

tofsee evasion execution persistence privilege_escalation 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\ajvovsqo = "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

2436 netsh.exe

pid	process
2436	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\ajvovsqo\ImagePath = "C:\\Windows\\SysWOW64\\ajvovsqo\\sefzuqro.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2740 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

sefzuqro.exe

pid process

2556 sefzuqro.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

sefzuqro.exe

description pid process target process

PID 2556 set thread context of 2740 2556 sefzuqro.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

2580 sc.exe
2264 sc.exe
2292 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2740	svchost.exe

pid	process
2556	sefzuqro.exe

description	pid	process	target process
PID 2556 set thread context of 2740	2556	sefzuqro.exe	svchost.exe

pid	process
2580	sc.exe
2264	sc.exe
2292	sc.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

Processes:

netsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exesefzuqro.exe

description	pid	process	target process
PID 332 wrote to memory of 2344	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	cmd.exe
PID 332 wrote to memory of 2344	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	cmd.exe
PID 332 wrote to memory of 2344	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	cmd.exe
PID 332 wrote to memory of 2344	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	cmd.exe
PID 332 wrote to memory of 2804	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	cmd.exe
PID 332 wrote to memory of 2804	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	cmd.exe
PID 332 wrote to memory of 2804	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	cmd.exe
PID 332 wrote to memory of 2804	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	cmd.exe
PID 332 wrote to memory of 2580	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	sc.exe
PID 332 wrote to memory of 2580	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	sc.exe
PID 332 wrote to memory of 2580	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	sc.exe
PID 332 wrote to memory of 2580	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	sc.exe
PID 332 wrote to memory of 2264	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	sc.exe
PID 332 wrote to memory of 2264	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	sc.exe
PID 332 wrote to memory of 2264	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	sc.exe
PID 332 wrote to memory of 2264	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	sc.exe
PID 332 wrote to memory of 2292	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	sc.exe
PID 332 wrote to memory of 2292	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	sc.exe
PID 332 wrote to memory of 2292	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	sc.exe
PID 332 wrote to memory of 2292	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	sc.exe
PID 2556 wrote to memory of 2740	2556	sefzuqro.exe	svchost.exe
PID 2556 wrote to memory of 2740	2556	sefzuqro.exe	svchost.exe
PID 2556 wrote to memory of 2740	2556	sefzuqro.exe	svchost.exe
PID 2556 wrote to memory of 2740	2556	sefzuqro.exe	svchost.exe
PID 2556 wrote to memory of 2740	2556	sefzuqro.exe	svchost.exe
PID 2556 wrote to memory of 2740	2556	sefzuqro.exe	svchost.exe
PID 332 wrote to memory of 2436	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	netsh.exe
PID 332 wrote to memory of 2436	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	netsh.exe
PID 332 wrote to memory of 2436	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	netsh.exe
PID 332 wrote to memory of 2436	332	0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:332

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ajvovsqo\
2⤵
PID:2344

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sefzuqro.exe" C:\Windows\SysWOW64\ajvovsqo\
2⤵
PID:2804

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ajvovsqo binPath= "C:\Windows\SysWOW64\ajvovsqo\sefzuqro.exe /d\"C:\Users\Admin\AppData\Local\Temp\0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2580

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ajvovsqo "wifi internet conection"
2⤵
- Launches sc.exe
PID:2264

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ajvovsqo
2⤵
- Launches sc.exe
PID:2292

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
- Event Triggered Execution: Netsh Helper DLL
PID:2436

C:\Windows\SysWOW64\ajvovsqo\sefzuqro.exe
C:\Windows\SysWOW64\ajvovsqo\sefzuqro.exe /d"C:\Users\Admin\AppData\Local\Temp\0ee3b729ec821e3c2cc92e2604836b13_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2556

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

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

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

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

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

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\sefzuqro.exe

Filesize
13.3MB

MD5
fa07dd2ca4a355a8af42b946841d82db

SHA1
627d3ffcbcebc6115ff7779b2e49de71651d9456

SHA256
30a9c415ba86f95af8fede3e8382bbec2e54214de061a1c848aedf9d6a958a32

SHA512
7a067c5e83a336a3d64d1cffbc89c832cca6575cf1e40d5cfb2cf87fe567abad00e932591b4175b53839572f388965edd520e3492b7c6e3379f9257fb1f636e6

Download Submit
memory/332-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/332-2-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/332-1-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/332-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/332-17-0x00000000050E0000-0x00000000050F1000-memory.dmp

Filesize
68KB

Download
memory/332-16-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2556-14-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2556-15-0x00000000050E0000-0x00000000050F1000-memory.dmp

Filesize
68KB

Download
memory/2556-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2740-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2740-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2740-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2740-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2740-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads