tofsee | 8a93c65824b1533d359ad03057a4da0ee83dc4394f624e02cc28ecbc81228c61

General

Target

f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe
Size

14.9MB
MD5

f3cad536f7b02e9b4585980cb56c4f06
SHA1

ab02e0f1058250ff3d1ea6083b965721d8939915
SHA256

8a93c65824b1533d359ad03057a4da0ee83dc4394f624e02cc28ecbc81228c61
SHA512

d941192fb90f982e4891ec4d74cf4ca5979679ceaa7c3c55e3b23ebf62910c51c85799154a5e3d9da3f26f6396f01d36c3dbe76ccbd323532b842adbd90a3552
SSDEEP

6144:/pcqzKUTS5Yde/qyQK8ZtqTMIKC/eUPFwUnyaAjLo7pU6eD:vKUO54e/q60tmT7/xPFwVjs7G6

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

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\njildfdl = "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

2096 netsh.exe

pid	process
2096	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\njildfdl\ImagePath = "C:\\Windows\\SysWOW64\\njildfdl\\pkuxlwwe.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2684 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

pkuxlwwe.exe

pid process

2864 pkuxlwwe.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

pkuxlwwe.exe

description pid process target process

PID 2864 set thread context of 2684 2864 pkuxlwwe.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

3036 sc.exe
2668 sc.exe
2720 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2684	svchost.exe

pid	process
2864	pkuxlwwe.exe

description	pid	process	target process
PID 2864 set thread context of 2684	2864	pkuxlwwe.exe	svchost.exe

pid	process
3036	sc.exe
2668	sc.exe
2720	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exepkuxlwwe.exe

description	pid	process	target process
PID 2976 wrote to memory of 2856	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	cmd.exe
PID 2976 wrote to memory of 2856	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	cmd.exe
PID 2976 wrote to memory of 2856	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	cmd.exe
PID 2976 wrote to memory of 2856	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	cmd.exe
PID 2976 wrote to memory of 2964	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	cmd.exe
PID 2976 wrote to memory of 2964	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	cmd.exe
PID 2976 wrote to memory of 2964	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	cmd.exe
PID 2976 wrote to memory of 2964	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	cmd.exe
PID 2976 wrote to memory of 3036	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	sc.exe
PID 2976 wrote to memory of 3036	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	sc.exe
PID 2976 wrote to memory of 3036	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	sc.exe
PID 2976 wrote to memory of 3036	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	sc.exe
PID 2976 wrote to memory of 2668	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	sc.exe
PID 2976 wrote to memory of 2668	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	sc.exe
PID 2976 wrote to memory of 2668	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	sc.exe
PID 2976 wrote to memory of 2668	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	sc.exe
PID 2976 wrote to memory of 2720	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	sc.exe
PID 2976 wrote to memory of 2720	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	sc.exe
PID 2976 wrote to memory of 2720	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	sc.exe
PID 2976 wrote to memory of 2720	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	sc.exe
PID 2976 wrote to memory of 2096	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	netsh.exe
PID 2976 wrote to memory of 2096	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	netsh.exe
PID 2976 wrote to memory of 2096	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	netsh.exe
PID 2976 wrote to memory of 2096	2976	f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe	netsh.exe
PID 2864 wrote to memory of 2684	2864	pkuxlwwe.exe	svchost.exe
PID 2864 wrote to memory of 2684	2864	pkuxlwwe.exe	svchost.exe
PID 2864 wrote to memory of 2684	2864	pkuxlwwe.exe	svchost.exe
PID 2864 wrote to memory of 2684	2864	pkuxlwwe.exe	svchost.exe
PID 2864 wrote to memory of 2684	2864	pkuxlwwe.exe	svchost.exe
PID 2864 wrote to memory of 2684	2864	pkuxlwwe.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2976

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\njildfdl\
2⤵
PID:2856

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pkuxlwwe.exe" C:\Windows\SysWOW64\njildfdl\
2⤵
PID:2964

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create njildfdl binPath= "C:\Windows\SysWOW64\njildfdl\pkuxlwwe.exe /d\"C:\Users\Admin\AppData\Local\Temp\f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:3036

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description njildfdl "wifi internet conection"
2⤵
- Launches sc.exe
PID:2668

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start njildfdl
2⤵
- Launches sc.exe
PID:2720

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:2096

C:\Windows\SysWOW64\njildfdl\pkuxlwwe.exe
C:\Windows\SysWOW64\njildfdl\pkuxlwwe.exe /d"C:\Users\Admin\AppData\Local\Temp\f3cad536f7b02e9b4585980cb56c4f06_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2864

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2684

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\pkuxlwwe.exe
Filesize
10.2MB

MD5
d7791d9bf0f87165e63f02b21f5a2419

SHA1
3fd5d4176701e5a72f6d52b3227763b3973a60e8

SHA256
b172e52ae3d05314ff8f47f236c32f2adc28c53558cd3c979996c90456909e0b

SHA512
5bfd580f716a280d5780f751e86a2e754dbdedce90124d21bfed8160aaa7b339e742363f8e0d016e92fd9e251caf7d8e2c156545b56008fe6643258f691502b0

Download Submit
memory/2684-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2684-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2684-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2684-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2684-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2684-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2864-14-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2864-15-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/2976-3-0x00000000003A0000-0x00000000003B3000-memory.dmp

Filesize
76KB

Download
memory/2976-4-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/2976-8-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/2976-1-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads