tofsee | fe784fd541b07359345cdfb43b8065e2bc998174db60cf3a17f8346db36490c8

General

Target

fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe
Size

12.8MB
MD5

fc36b1375b31d55e67f16990365d95ff
SHA1

4957b074548b93c0eeb22fbc2566b0fa08816d76
SHA256

fe784fd541b07359345cdfb43b8065e2bc998174db60cf3a17f8346db36490c8
SHA512

b9d2c225d480098889360bef9a892ca97593e27b32304399392af23cc72c6f31d34d7c1c131444e9eb0ebdc0dfb64d4834a0aac1cd0802787b01934dc9209165
SSDEEP

49152:NFUk///////////////////////////////////////////////////////////n:NF

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\gxrvokgf = "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

2228 netsh.exe

pid	process
2228	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\gxrvokgf\ImagePath = "C:\\Windows\\SysWOW64\\gxrvokgf\\jlgmfsc.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2332 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

jlgmfsc.exe

pid process

2664 jlgmfsc.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

jlgmfsc.exe

description pid process target process

PID 2664 set thread context of 2332 2664 jlgmfsc.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

2460 sc.exe
2564 sc.exe
2924 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2332	svchost.exe

pid	process
2664	jlgmfsc.exe

description	pid	process	target process
PID 2664 set thread context of 2332	2664	jlgmfsc.exe	svchost.exe

pid	process
2460	sc.exe
2564	sc.exe
2924	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exejlgmfsc.exe

description	pid	process	target process
PID 1400 wrote to memory of 1936	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	cmd.exe
PID 1400 wrote to memory of 1936	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	cmd.exe
PID 1400 wrote to memory of 1936	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	cmd.exe
PID 1400 wrote to memory of 1936	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	cmd.exe
PID 1400 wrote to memory of 2104	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	cmd.exe
PID 1400 wrote to memory of 2104	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	cmd.exe
PID 1400 wrote to memory of 2104	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	cmd.exe
PID 1400 wrote to memory of 2104	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	cmd.exe
PID 1400 wrote to memory of 2460	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	sc.exe
PID 1400 wrote to memory of 2460	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	sc.exe
PID 1400 wrote to memory of 2460	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	sc.exe
PID 1400 wrote to memory of 2460	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	sc.exe
PID 1400 wrote to memory of 2564	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	sc.exe
PID 1400 wrote to memory of 2564	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	sc.exe
PID 1400 wrote to memory of 2564	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	sc.exe
PID 1400 wrote to memory of 2564	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	sc.exe
PID 1400 wrote to memory of 2924	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	sc.exe
PID 1400 wrote to memory of 2924	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	sc.exe
PID 1400 wrote to memory of 2924	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	sc.exe
PID 1400 wrote to memory of 2924	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	sc.exe
PID 1400 wrote to memory of 2228	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	netsh.exe
PID 1400 wrote to memory of 2228	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	netsh.exe
PID 1400 wrote to memory of 2228	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	netsh.exe
PID 1400 wrote to memory of 2228	1400	fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe	netsh.exe
PID 2664 wrote to memory of 2332	2664	jlgmfsc.exe	svchost.exe
PID 2664 wrote to memory of 2332	2664	jlgmfsc.exe	svchost.exe
PID 2664 wrote to memory of 2332	2664	jlgmfsc.exe	svchost.exe
PID 2664 wrote to memory of 2332	2664	jlgmfsc.exe	svchost.exe
PID 2664 wrote to memory of 2332	2664	jlgmfsc.exe	svchost.exe
PID 2664 wrote to memory of 2332	2664	jlgmfsc.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1400

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gxrvokgf\
2⤵
PID:1936

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jlgmfsc.exe" C:\Windows\SysWOW64\gxrvokgf\
2⤵
PID:2104

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create gxrvokgf binPath= "C:\Windows\SysWOW64\gxrvokgf\jlgmfsc.exe /d\"C:\Users\Admin\AppData\Local\Temp\fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2460

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description gxrvokgf "wifi internet conection"
2⤵
- Launches sc.exe
PID:2564

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start gxrvokgf
2⤵
- Launches sc.exe
PID:2924

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:2228

C:\Windows\SysWOW64\gxrvokgf\jlgmfsc.exe
C:\Windows\SysWOW64\gxrvokgf\jlgmfsc.exe /d"C:\Users\Admin\AppData\Local\Temp\fc36b1375b31d55e67f16990365d95ff_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2664

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2332

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\jlgmfsc.exe

Filesize
14.2MB

MD5
59c7b8307d93f1dfb11ca0b9016a1df2

SHA1
ba56661d891a9c9e86ded20df9a9be77bf1c3d58

SHA256
89c236576099706f13f54b644c3a855a63f6d2b732501d341b74f80e504976f3

SHA512
327a5e099df6d7f1c978264fc773e4438f664bd8206bb359747109cf34d51a24f99441f1b0b1b6b723ed5367a1adac0c700becfb4008f74f5523a865fcdfdc95

Download Submit
memory/1400-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/1400-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/1400-4-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/1400-6-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/2332-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2332-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2332-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2332-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2332-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2332-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2664-10-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/2664-9-0x00000000008D0000-0x00000000009D0000-memory.dmp

Filesize
1024KB

Download
memory/2664-17-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads