tofsee | 5bc56bbb39fc526c456c171afcfd0f0861418f6acb277fd9304bf01023c9d40d

General

Target

fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe
Size

10.3MB
MD5

fbb4d43f90d6c4e44bc3d66bb4e00a7f
SHA1

71333f6fac993d9c6f1d7c853beffb364f0a5aaa
SHA256

5bc56bbb39fc526c456c171afcfd0f0861418f6acb277fd9304bf01023c9d40d
SHA512

59152fa21df817423fba2bf3a635f7228bcdd0ae88bbef766a3523e3609304ea86b4192637ed9f0a58b8a0211c918b3768628ac150aebafb7567f321137cb51f
SSDEEP

6144:UDLhwY9FPsMFYUaPWIXDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD/:WWSFPsycP

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\vlhskmfi = "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

2660 netsh.exe

pid	process
2660	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\vlhskmfi\ImagePath = "C:\\Windows\\SysWOW64\\vlhskmfi\\mvpumlgc.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2520 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

mvpumlgc.exe

pid process

2640 mvpumlgc.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

mvpumlgc.exe

description pid process target process

PID 2640 set thread context of 2520 2640 mvpumlgc.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

2592 sc.exe
2536 sc.exe
2396 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2520	svchost.exe

pid	process
2640	mvpumlgc.exe

description	pid	process	target process
PID 2640 set thread context of 2520	2640	mvpumlgc.exe	svchost.exe

pid	process
2592	sc.exe
2536	sc.exe
2396	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exemvpumlgc.exe

description	pid	process	target process
PID 1948 wrote to memory of 2228	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	cmd.exe
PID 1948 wrote to memory of 2228	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	cmd.exe
PID 1948 wrote to memory of 2228	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	cmd.exe
PID 1948 wrote to memory of 2228	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	cmd.exe
PID 1948 wrote to memory of 2924	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	cmd.exe
PID 1948 wrote to memory of 2924	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	cmd.exe
PID 1948 wrote to memory of 2924	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	cmd.exe
PID 1948 wrote to memory of 2924	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	cmd.exe
PID 1948 wrote to memory of 2592	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	sc.exe
PID 1948 wrote to memory of 2592	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	sc.exe
PID 1948 wrote to memory of 2592	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	sc.exe
PID 1948 wrote to memory of 2592	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	sc.exe
PID 1948 wrote to memory of 2536	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	sc.exe
PID 1948 wrote to memory of 2536	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	sc.exe
PID 1948 wrote to memory of 2536	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	sc.exe
PID 1948 wrote to memory of 2536	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	sc.exe
PID 1948 wrote to memory of 2396	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	sc.exe
PID 1948 wrote to memory of 2396	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	sc.exe
PID 1948 wrote to memory of 2396	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	sc.exe
PID 1948 wrote to memory of 2396	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	sc.exe
PID 1948 wrote to memory of 2660	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	netsh.exe
PID 1948 wrote to memory of 2660	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	netsh.exe
PID 1948 wrote to memory of 2660	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	netsh.exe
PID 1948 wrote to memory of 2660	1948	fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe	netsh.exe
PID 2640 wrote to memory of 2520	2640	mvpumlgc.exe	svchost.exe
PID 2640 wrote to memory of 2520	2640	mvpumlgc.exe	svchost.exe
PID 2640 wrote to memory of 2520	2640	mvpumlgc.exe	svchost.exe
PID 2640 wrote to memory of 2520	2640	mvpumlgc.exe	svchost.exe
PID 2640 wrote to memory of 2520	2640	mvpumlgc.exe	svchost.exe
PID 2640 wrote to memory of 2520	2640	mvpumlgc.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1948

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vlhskmfi\
2⤵
PID:2228

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mvpumlgc.exe" C:\Windows\SysWOW64\vlhskmfi\
2⤵
PID:2924

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create vlhskmfi binPath= "C:\Windows\SysWOW64\vlhskmfi\mvpumlgc.exe /d\"C:\Users\Admin\AppData\Local\Temp\fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2592

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description vlhskmfi "wifi internet conection"
2⤵
- Launches sc.exe
PID:2536

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start vlhskmfi
2⤵
- Launches sc.exe
PID:2396

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:2660

C:\Windows\SysWOW64\vlhskmfi\mvpumlgc.exe
C:\Windows\SysWOW64\vlhskmfi\mvpumlgc.exe /d"C:\Users\Admin\AppData\Local\Temp\fbb4d43f90d6c4e44bc3d66bb4e00a7f_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2640

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2520

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\mvpumlgc.exe
Filesize
13.9MB

MD5
8de48be2ff74c6bed4cd7f4778b8f777

SHA1
66fac193365fdf514d937fa10d536e7ac4f8394a

SHA256
6a9523a6f359ae6023252ecd159c0ec45271ad7fef715f7464236502784f8c0d

SHA512
d0cfafd6dd16e322007353d32d8e7aa9d8cddb14741ab7b5352939cb863ef84720fbbf2bc3370f58e7cd15eb212650ddaee16a0e8ac7720380e9ec2b74855ddc

Download Submit
memory/1948-3-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1948-1-0x0000000000BD0000-0x0000000000CD0000-memory.dmp

Filesize
1024KB

Download
memory/1948-4-0x0000000000400000-0x0000000000A79000-memory.dmp

Filesize
6.5MB

Download
memory/1948-7-0x0000000000400000-0x0000000000A79000-memory.dmp

Filesize
6.5MB

Download
memory/2520-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2520-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2520-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2520-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2520-19-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2520-20-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2640-10-0x0000000000B50000-0x0000000000C50000-memory.dmp

Filesize
1024KB

Download
memory/2640-9-0x0000000000400000-0x0000000000A79000-memory.dmp

Filesize
6.5MB

Download
memory/2640-16-0x0000000000400000-0x0000000000A79000-memory.dmp

Filesize
6.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads