tofsee | 8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e

General

Target

JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe
Size

289KB
MD5

f0b389eddb739dff2910a5fd0ac9e230
SHA1

1f53d0c5cf8d47155288fbb095da8042e3187486
SHA256

8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e
SHA512

a936a339ce4180f330d556eba167f34f415d3fa1526368a142a2bd232e3c73277f810a5d15d23fa2962c52ffcb2a30ee3b4bb4456b8cb579fec9176c7d679cf3
SSDEEP

6144:1OpmAt9iWg1uqJL6BbxOOhxxdeTr/ekI:eji/L6BJzxd6L

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation 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
Tofsee family
tofsee
Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
264	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\dioppilu\ImagePath = "C:\\Windows\\SysWOW64\\dioppilu\\wzsayais.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe

Deletes itself 1 IoCs

pid	Process
3232	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3612	wzsayais.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3612 set thread context of 3232	3612	wzsayais.exe	100

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
4192	sc.exe
4892	sc.exe
3116	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3936	4124	WerFault.exe	82
4500	3612	WerFault.exe	93

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wzsayais.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4124 wrote to memory of 4504	4124	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe	83
PID 4124 wrote to memory of 4504	4124	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe	83
PID 4124 wrote to memory of 4504	4124	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe	83
PID 4124 wrote to memory of 4752	4124	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe	85
PID 4124 wrote to memory of 4752	4124	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe	85
PID 4124 wrote to memory of 4752	4124	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe	85
PID 4124 wrote to memory of 4192	4124	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe	87
PID 4124 wrote to memory of 4192	4124	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe	87
PID 4124 wrote to memory of 4192	4124	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe	87
PID 4124 wrote to memory of 4892	4124	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe	89
PID 4124 wrote to memory of 4892	4124	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe	89
PID 4124 wrote to memory of 4892	4124	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe	89
PID 4124 wrote to memory of 3116	4124	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe	91
PID 4124 wrote to memory of 3116	4124	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe	91
PID 4124 wrote to memory of 3116	4124	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe	91
PID 4124 wrote to memory of 264	4124	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe	94
PID 4124 wrote to memory of 264	4124	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe	94
PID 4124 wrote to memory of 264	4124	JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe	94
PID 3612 wrote to memory of 3232	3612	wzsayais.exe	100
PID 3612 wrote to memory of 3232	3612	wzsayais.exe	100
PID 3612 wrote to memory of 3232	3612	wzsayais.exe	100
PID 3612 wrote to memory of 3232	3612	wzsayais.exe	100
PID 3612 wrote to memory of 3232	3612	wzsayais.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4124
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dioppilu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4504
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wzsayais.exe" C:\Windows\SysWOW64\dioppilu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dioppilu binPath= "C:\Windows\SysWOW64\dioppilu\wzsayais.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4192
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dioppilu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4892
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dioppilu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3116
- 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
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:264
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4124 -s 1188
  2⤵
  - Program crash
  PID:3936

C:\Windows\SysWOW64\dioppilu\wzsayais.exe
C:\Windows\SysWOW64\dioppilu\wzsayais.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e4c774250513b7e0b5b1bfdc151ff584a2f92f150d3b9314f71b54cd9e5e85e.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3612
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3232
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3612 -s 512
  2⤵
  - Program crash
  PID:4500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4124 -ip 4124
1⤵
PID:2496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3612 -ip 3612
1⤵
PID:2868

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

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

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

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

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\wzsayais.exe

Filesize
14.2MB

MD5
f94ff5c505c9853054dce9d73116d92b

SHA1
9d8f113362b9231267b5dbcada234f134c4eb8c1

SHA256
b0c4cb3df205890dd0c67f75470e350cb0bf6b77ef979d02cca8ed3d8e5f4f50

SHA512
339d77884da862614453b40c845db5b0bc9ce6c7b70768557ec033192fea88f817603e6de2e96fc6c376c08918806ab17aea796be3cf8e7b42be3eb78fca9f24

Download Submit
memory/3232-14-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download
memory/3232-17-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download
memory/3232-16-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download
memory/3612-13-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/3612-12-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/3612-11-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/3612-19-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4124-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4124-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4124-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/4124-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4124-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4124-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads