tofsee | 7f8cb81aabb63a3bb8806b9c055582bec59ef104362316dc164dd686128b9246

General

Target

20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe
Size

99KB
MD5

20de026bf4998364c894a00f7a97df60
SHA1

9db4857e4894082aa77c5f5b82009f2028f8fc51
SHA256

7f8cb81aabb63a3bb8806b9c055582bec59ef104362316dc164dd686128b9246
SHA512

10894d234217ba24391d5de14e40908cfb13ae367e943b34fafad9c6bd5caa937501f1db04ee43127171d40d7d185fa09cf3de8f765b89aa706272ee6c0596dc
SSDEEP

1536:R33ZAoU8Ed7fzXfQFlj8+6a+Vpvy/eKaO/VChHWNvw0+pDi8P19Exk:hZ3EZf6A+6a+Vpvy/ead22KHDDPEa

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\yxtpvrro = "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

2480 netsh.exe

pid	process
2480	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\yxtpvrro\ImagePath = "C:\\Windows\\SysWOW64\\yxtpvrro\\srhdkgl.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2612 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

srhdkgl.exe

pid process

2628 srhdkgl.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

srhdkgl.exe

description pid process target process

PID 2628 set thread context of 2612 2628 srhdkgl.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

3048 sc.exe
2636 sc.exe
2656 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2612	svchost.exe

pid	process
2628	srhdkgl.exe

description	pid	process	target process
PID 2628 set thread context of 2612	2628	srhdkgl.exe	svchost.exe

pid	process
3048	sc.exe
2636	sc.exe
2656	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

20de026bf4998364c894a00f7a97df60_JaffaCakes118.exesrhdkgl.exe

description	pid	process	target process
PID 2756 wrote to memory of 2368	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	cmd.exe
PID 2756 wrote to memory of 2368	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	cmd.exe
PID 2756 wrote to memory of 2368	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	cmd.exe
PID 2756 wrote to memory of 2368	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	cmd.exe
PID 2756 wrote to memory of 2816	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	cmd.exe
PID 2756 wrote to memory of 2816	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	cmd.exe
PID 2756 wrote to memory of 2816	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	cmd.exe
PID 2756 wrote to memory of 2816	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	cmd.exe
PID 2756 wrote to memory of 3048	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	sc.exe
PID 2756 wrote to memory of 3048	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	sc.exe
PID 2756 wrote to memory of 3048	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	sc.exe
PID 2756 wrote to memory of 3048	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	sc.exe
PID 2756 wrote to memory of 2636	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	sc.exe
PID 2756 wrote to memory of 2636	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	sc.exe
PID 2756 wrote to memory of 2636	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	sc.exe
PID 2756 wrote to memory of 2636	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	sc.exe
PID 2756 wrote to memory of 2656	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	sc.exe
PID 2756 wrote to memory of 2656	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	sc.exe
PID 2756 wrote to memory of 2656	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	sc.exe
PID 2756 wrote to memory of 2656	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	sc.exe
PID 2628 wrote to memory of 2612	2628	srhdkgl.exe	svchost.exe
PID 2628 wrote to memory of 2612	2628	srhdkgl.exe	svchost.exe
PID 2628 wrote to memory of 2612	2628	srhdkgl.exe	svchost.exe
PID 2628 wrote to memory of 2612	2628	srhdkgl.exe	svchost.exe
PID 2628 wrote to memory of 2612	2628	srhdkgl.exe	svchost.exe
PID 2628 wrote to memory of 2612	2628	srhdkgl.exe	svchost.exe
PID 2756 wrote to memory of 2480	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	netsh.exe
PID 2756 wrote to memory of 2480	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	netsh.exe
PID 2756 wrote to memory of 2480	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	netsh.exe
PID 2756 wrote to memory of 2480	2756	20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2756

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yxtpvrro\
2⤵
PID:2368

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\srhdkgl.exe" C:\Windows\SysWOW64\yxtpvrro\
2⤵
PID:2816

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create yxtpvrro binPath= "C:\Windows\SysWOW64\yxtpvrro\srhdkgl.exe /d\"C:\Users\Admin\AppData\Local\Temp\20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:3048

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description yxtpvrro "wifi internet conection"
2⤵
- Launches sc.exe
PID:2636

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start yxtpvrro
2⤵
- Launches sc.exe
PID:2656

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:2480

C:\Windows\SysWOW64\yxtpvrro\srhdkgl.exe
C:\Windows\SysWOW64\yxtpvrro\srhdkgl.exe /d"C:\Users\Admin\AppData\Local\Temp\20de026bf4998364c894a00f7a97df60_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2628

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2612

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\srhdkgl.exe
Filesize
10.6MB

MD5
d09ff04a70b4e5aa4e6a254d652bc3ba

SHA1
ee8134e4446a95277ee95ae29eb73886c28e5213

SHA256
44d6ca38fc8162596562cc5e94eb5cc23f6ae9c3aba63b871036157a6e7b98b7

SHA512
74d678194539a41fb6b4f14b3083df13392f85fc223282b2dd550319f190460839ac4e3117ad5564ce68c819f66b26612d6da434dc481fa5b1b079bf6483b61b

Download Submit
memory/2612-10-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2612-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2612-7-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2612-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2612-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2628-6-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/2628-12-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/2756-0-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2756-1-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/2756-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2756-13-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads