tofsee | 7a975f0197744ff65ed0c6ab56576c5b40bf11176e6f43f9945072a9bb3660e0

General

Target

f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe
Size

13.1MB
MD5

f21f4614358cdb18bcc75489077f6e50
SHA1

3fbcc2f1bd4dce604cfb468ef882ce93388f1015
SHA256

7a975f0197744ff65ed0c6ab56576c5b40bf11176e6f43f9945072a9bb3660e0
SHA512

95f8f87568983cc69a13b4d023520364e52ceb241474aeb1bd4a91b59d483b002653c15b0bb6b9b8aff76f363a305aabc03872696440f76f0e2e1e71431583c5
SSDEEP

49152:Yjrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrj:e

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\wgubzxsu = "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

2784 netsh.exe

pid	process
2784	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\wgubzxsu\ImagePath = "C:\\Windows\\SysWOW64\\wgubzxsu\\sefzuqro.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2544 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

sefzuqro.exe

pid process

2444 sefzuqro.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

sefzuqro.exe

description pid process target process

PID 2444 set thread context of 2544 2444 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

2532 sc.exe
2640 sc.exe
2716 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2544	svchost.exe

pid	process
2444	sefzuqro.exe

description	pid	process	target process
PID 2444 set thread context of 2544	2444	sefzuqro.exe	svchost.exe

pid	process
2532	sc.exe
2640	sc.exe
2716	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exesefzuqro.exe

description	pid	process	target process
PID 2776 wrote to memory of 2000	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	cmd.exe
PID 2776 wrote to memory of 2000	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	cmd.exe
PID 2776 wrote to memory of 2000	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	cmd.exe
PID 2776 wrote to memory of 2000	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	cmd.exe
PID 2776 wrote to memory of 2144	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	cmd.exe
PID 2776 wrote to memory of 2144	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	cmd.exe
PID 2776 wrote to memory of 2144	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	cmd.exe
PID 2776 wrote to memory of 2144	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	cmd.exe
PID 2776 wrote to memory of 2640	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2640	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2640	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2640	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2716	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2716	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2716	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2716	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2532	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2532	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2532	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2532	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	sc.exe
PID 2776 wrote to memory of 2784	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	netsh.exe
PID 2776 wrote to memory of 2784	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	netsh.exe
PID 2776 wrote to memory of 2784	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	netsh.exe
PID 2776 wrote to memory of 2784	2776	f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe	netsh.exe
PID 2444 wrote to memory of 2544	2444	sefzuqro.exe	svchost.exe
PID 2444 wrote to memory of 2544	2444	sefzuqro.exe	svchost.exe
PID 2444 wrote to memory of 2544	2444	sefzuqro.exe	svchost.exe
PID 2444 wrote to memory of 2544	2444	sefzuqro.exe	svchost.exe
PID 2444 wrote to memory of 2544	2444	sefzuqro.exe	svchost.exe
PID 2444 wrote to memory of 2544	2444	sefzuqro.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2776

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wgubzxsu\
2⤵
PID:2000

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sefzuqro.exe" C:\Windows\SysWOW64\wgubzxsu\
2⤵
PID:2144

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create wgubzxsu binPath= "C:\Windows\SysWOW64\wgubzxsu\sefzuqro.exe /d\"C:\Users\Admin\AppData\Local\Temp\f21f4614358cdb18bcc75489077f6e50_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 wgubzxsu "wifi internet conection"
2⤵
- Launches sc.exe
PID:2716

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start wgubzxsu
2⤵
- Launches sc.exe
PID:2532

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:2784

C:\Windows\SysWOW64\wgubzxsu\sefzuqro.exe
C:\Windows\SysWOW64\wgubzxsu\sefzuqro.exe /d"C:\Users\Admin\AppData\Local\Temp\f21f4614358cdb18bcc75489077f6e50_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2444

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2544

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\sefzuqro.exe

Filesize
11.7MB

MD5
cc79cfaad71da762343fd0a28d61d900

SHA1
d7a65b20b3ca86cd0ea313f544d4e210ae6775f5

SHA256
85b65f10143759ba495662cb9cba8778b44496d5b704b040022a5e0691b98c8c

SHA512
5fc038519cf0284f6242fae70f32d693767e4e72abcfd3de0dafff9087a13f546d0a9628f9940846bcc0ba48779e60289a46af01a80eecbd6f8c36a39a2116a7

Download Submit
memory/2444-16-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2444-9-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/2444-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2544-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2544-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2544-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2544-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2544-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2544-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2544-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2776-6-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2776-1-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/2776-3-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2776-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2776-2-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads