tofsee | 4862a24b71b2b82a87363c6e8f76784c96fca5a5285611387c8c012928206445

General

Target

fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe
Size

12.5MB
MD5

fe1a54e652e0aabbeef12672ab7cd8b6
SHA1

ade9b1b9a4cffb7273e0d4658c46e4b96da074cb
SHA256

4862a24b71b2b82a87363c6e8f76784c96fca5a5285611387c8c012928206445
SHA512

fc5f7260a03670a45105b77e4eab17cd784f43fc689e8c7314848f08cabbefcd833cef6e42736585dcd8af54d0642db4249e70ffd6b7b6153dcbe09bf97f41e0
SSDEEP

49152:oM+SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSz:o

Score

10^/10

tofsee evasion 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\oxxkhqib = "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

1488 netsh.exe

pid	process
1488	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\oxxkhqib\ImagePath = "C:\\Windows\\SysWOW64\\oxxkhqib\\oopavwuc.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2632 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

oopavwuc.exe

pid process

2824 oopavwuc.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

oopavwuc.exe

description pid process target process

PID 2824 set thread context of 2632 2824 oopavwuc.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

1724 sc.exe
2816 sc.exe
1012 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2632	svchost.exe

pid	process
2824	oopavwuc.exe

description	pid	process	target process
PID 2824 set thread context of 2632	2824	oopavwuc.exe	svchost.exe

pid	process
1724	sc.exe
2816	sc.exe
1012	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exeoopavwuc.exe

description	pid	process	target process
PID 3048 wrote to memory of 780	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	cmd.exe
PID 3048 wrote to memory of 780	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	cmd.exe
PID 3048 wrote to memory of 780	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	cmd.exe
PID 3048 wrote to memory of 780	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	cmd.exe
PID 3048 wrote to memory of 2716	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	cmd.exe
PID 3048 wrote to memory of 2716	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	cmd.exe
PID 3048 wrote to memory of 2716	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	cmd.exe
PID 3048 wrote to memory of 2716	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	cmd.exe
PID 3048 wrote to memory of 1012	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	sc.exe
PID 3048 wrote to memory of 1012	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	sc.exe
PID 3048 wrote to memory of 1012	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	sc.exe
PID 3048 wrote to memory of 1012	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	sc.exe
PID 3048 wrote to memory of 1724	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	sc.exe
PID 3048 wrote to memory of 1724	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	sc.exe
PID 3048 wrote to memory of 1724	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	sc.exe
PID 3048 wrote to memory of 1724	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	sc.exe
PID 3048 wrote to memory of 2816	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	sc.exe
PID 3048 wrote to memory of 2816	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	sc.exe
PID 3048 wrote to memory of 2816	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	sc.exe
PID 3048 wrote to memory of 2816	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	sc.exe
PID 3048 wrote to memory of 1488	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	netsh.exe
PID 3048 wrote to memory of 1488	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	netsh.exe
PID 3048 wrote to memory of 1488	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	netsh.exe
PID 3048 wrote to memory of 1488	3048	fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe	netsh.exe
PID 2824 wrote to memory of 2632	2824	oopavwuc.exe	svchost.exe
PID 2824 wrote to memory of 2632	2824	oopavwuc.exe	svchost.exe
PID 2824 wrote to memory of 2632	2824	oopavwuc.exe	svchost.exe
PID 2824 wrote to memory of 2632	2824	oopavwuc.exe	svchost.exe
PID 2824 wrote to memory of 2632	2824	oopavwuc.exe	svchost.exe
PID 2824 wrote to memory of 2632	2824	oopavwuc.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3048

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oxxkhqib\
2⤵
PID:780

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oopavwuc.exe" C:\Windows\SysWOW64\oxxkhqib\
2⤵
PID:2716

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create oxxkhqib binPath= "C:\Windows\SysWOW64\oxxkhqib\oopavwuc.exe /d\"C:\Users\Admin\AppData\Local\Temp\fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1012

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description oxxkhqib "wifi internet conection"
2⤵
- Launches sc.exe
PID:1724

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start oxxkhqib
2⤵
- Launches sc.exe
PID:2816

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:1488

C:\Windows\SysWOW64\oxxkhqib\oopavwuc.exe
C:\Windows\SysWOW64\oxxkhqib\oopavwuc.exe /d"C:\Users\Admin\AppData\Local\Temp\fe1a54e652e0aabbeef12672ab7cd8b6_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2824

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2632

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\oopavwuc.exe

Filesize
14.4MB

MD5
ea89c72264c40bd7cb808005eb009fa1

SHA1
b0c4afe461b0eb02b5999c04b7dcf400ef739d68

SHA256
bc190b96153878d7b8d086e0add01bebc6d376a7a780ad46a2a68e89b699efdc

SHA512
e4e364f11da4a15f83b6b23792dc405031b9c044ca6f95ff0618fa3b6fc2957314c47a432c4bcf20d72d5b274397968cf0956cc625bb4831c5c48bca4c6c8e3d

Download Submit
memory/2632-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2632-22-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2632-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2632-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2632-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2632-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2632-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2824-18-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2824-11-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2824-10-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/3048-7-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/3048-2-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/3048-6-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/3048-3-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/3048-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads