tofsee | d14d3e5af0dd958586eebcfbf7b085c2ced151b2fc190d2d3d3703d032b45019

General

Target

ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe
Size

11.6MB
MD5

ff34e4dde4edddb6811d5823ad8d1ff6
SHA1

05e5557df156f030b9203c0f60cf946b74633c68
SHA256

d14d3e5af0dd958586eebcfbf7b085c2ced151b2fc190d2d3d3703d032b45019
SHA512

33e9770eff700d8544959c2d1caf171e37ac6f69ca9fffb066ec789cc8f2acff602607c692d1acca47d90881223544fb22b6f11aba51213eaeaf071f4582a729
SSDEEP

49152:kBvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvn:k

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

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\xfletvnn = "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

1656 netsh.exe

pid	process
1656	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\xfletvnn\ImagePath = "C:\\Windows\\SysWOW64\\xfletvnn\\uezullek.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2820 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

uezullek.exe

pid process

2872 uezullek.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

uezullek.exe

description pid process target process

PID 2872 set thread context of 2820 2872 uezullek.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

2596 sc.exe
2656 sc.exe
2640 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2820	svchost.exe

pid	process
2872	uezullek.exe

description	pid	process	target process
PID 2872 set thread context of 2820	2872	uezullek.exe	svchost.exe

pid	process
2596	sc.exe
2656	sc.exe
2640	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exeuezullek.exe

description	pid	process	target process
PID 2460 wrote to memory of 1900	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	cmd.exe
PID 2460 wrote to memory of 1900	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	cmd.exe
PID 2460 wrote to memory of 1900	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	cmd.exe
PID 2460 wrote to memory of 1900	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	cmd.exe
PID 2460 wrote to memory of 2520	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	cmd.exe
PID 2460 wrote to memory of 2520	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	cmd.exe
PID 2460 wrote to memory of 2520	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	cmd.exe
PID 2460 wrote to memory of 2520	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	cmd.exe
PID 2460 wrote to memory of 2596	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 2460 wrote to memory of 2596	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 2460 wrote to memory of 2596	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 2460 wrote to memory of 2596	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 2460 wrote to memory of 2656	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 2460 wrote to memory of 2656	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 2460 wrote to memory of 2656	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 2460 wrote to memory of 2656	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 2460 wrote to memory of 2640	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 2460 wrote to memory of 2640	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 2460 wrote to memory of 2640	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 2460 wrote to memory of 2640	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	sc.exe
PID 2460 wrote to memory of 1656	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	netsh.exe
PID 2460 wrote to memory of 1656	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	netsh.exe
PID 2460 wrote to memory of 1656	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	netsh.exe
PID 2460 wrote to memory of 1656	2460	ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe	netsh.exe
PID 2872 wrote to memory of 2820	2872	uezullek.exe	svchost.exe
PID 2872 wrote to memory of 2820	2872	uezullek.exe	svchost.exe
PID 2872 wrote to memory of 2820	2872	uezullek.exe	svchost.exe
PID 2872 wrote to memory of 2820	2872	uezullek.exe	svchost.exe
PID 2872 wrote to memory of 2820	2872	uezullek.exe	svchost.exe
PID 2872 wrote to memory of 2820	2872	uezullek.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2460

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xfletvnn\
2⤵
PID:1900

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uezullek.exe" C:\Windows\SysWOW64\xfletvnn\
2⤵
PID:2520

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create xfletvnn binPath= "C:\Windows\SysWOW64\xfletvnn\uezullek.exe /d\"C:\Users\Admin\AppData\Local\Temp\ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2596

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description xfletvnn "wifi internet conection"
2⤵
- Launches sc.exe
PID:2656

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start xfletvnn
2⤵
- Launches sc.exe
PID:2640

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:1656

C:\Windows\SysWOW64\xfletvnn\uezullek.exe
C:\Windows\SysWOW64\xfletvnn\uezullek.exe /d"C:\Users\Admin\AppData\Local\Temp\ff34e4dde4edddb6811d5823ad8d1ff6_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2872

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2820

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\uezullek.exe

Filesize
11.0MB

MD5
b3f2b79ea360fc0e3fcd1adba3f58903

SHA1
1c32d152b7515a03f2a6cee496e4d05a5fbb1691

SHA256
1763b2c649f609c5b0fbf1bb9514d0bd12aa0bc534f4c8a4003c8fd75e0f4eaf

SHA512
857289873aa4be494062b1319fd29de7851a8264b9c9d098011e913f4ebb46aefc83f3242d90d3c38fe5e1391866a21b41861738515a32ee256369905005504f

Download Submit
memory/2460-1-0x0000000000D60000-0x0000000000E60000-memory.dmp

Filesize
1024KB

Download
memory/2460-3-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2460-4-0x0000000000400000-0x0000000000C14000-memory.dmp

Filesize
8.1MB

Download
memory/2460-7-0x0000000000400000-0x0000000000C14000-memory.dmp

Filesize
8.1MB

Download
memory/2820-10-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2820-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2820-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2820-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2820-19-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2820-20-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2820-21-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2872-9-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2872-11-0x0000000000400000-0x0000000000C14000-memory.dmp

Filesize
8.1MB

Download
memory/2872-15-0x0000000000400000-0x0000000000C14000-memory.dmp

Filesize
8.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads