tofsee | b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566

General

Target

JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe
Size

300KB
MD5

4189f2a27dfdbdc0424f4b04964a1cb1
SHA1

276ccfa3cef69d41b4ae7dfca5ca170a90d5032a
SHA256

b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566
SHA512

55fd82b856ffcf1c0c1febeda8ce04ae4893a84d8a0bfb617fca3fdd1090f667f43aeb569857913e7a0e1388b769dd77006926a6469c23f9b339f06a7d705355
SSDEEP

6144:+X5T4tWtxqDstWhZxQxHdEXhG904J6KkE:+X5UtWCDstWhfQNdKhV40Kk

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

patmushta.info

parubey.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
3248	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\maxggarg\ImagePath = "C:\\Windows\\SysWOW64\\maxggarg\\mbhbwmkz.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe

Deletes itself 1 IoCs

pid	Process
2804	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3016	mbhbwmkz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3016 set thread context of 2804	3016	mbhbwmkz.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
2016	sc.exe
2228	sc.exe
1328	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 opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3020	1820	WerFault.exe	82
832	3016	WerFault.exe	94

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mbhbwmkz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe
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	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1820 wrote to memory of 4564	1820	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe	83
PID 1820 wrote to memory of 4564	1820	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe	83
PID 1820 wrote to memory of 4564	1820	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe	83
PID 1820 wrote to memory of 3908	1820	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe	85
PID 1820 wrote to memory of 3908	1820	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe	85
PID 1820 wrote to memory of 3908	1820	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe	85
PID 1820 wrote to memory of 1328	1820	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe	87
PID 1820 wrote to memory of 1328	1820	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe	87
PID 1820 wrote to memory of 1328	1820	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe	87
PID 1820 wrote to memory of 2016	1820	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe	89
PID 1820 wrote to memory of 2016	1820	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe	89
PID 1820 wrote to memory of 2016	1820	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe	89
PID 1820 wrote to memory of 2228	1820	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe	92
PID 1820 wrote to memory of 2228	1820	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe	92
PID 1820 wrote to memory of 2228	1820	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe	92
PID 1820 wrote to memory of 3248	1820	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe	95
PID 1820 wrote to memory of 3248	1820	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe	95
PID 1820 wrote to memory of 3248	1820	JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe	95
PID 3016 wrote to memory of 2804	3016	mbhbwmkz.exe	101
PID 3016 wrote to memory of 2804	3016	mbhbwmkz.exe	101
PID 3016 wrote to memory of 2804	3016	mbhbwmkz.exe	101
PID 3016 wrote to memory of 2804	3016	mbhbwmkz.exe	101
PID 3016 wrote to memory of 2804	3016	mbhbwmkz.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\maxggarg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4564
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mbhbwmkz.exe" C:\Windows\SysWOW64\maxggarg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create maxggarg binPath= "C:\Windows\SysWOW64\maxggarg\mbhbwmkz.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1328
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description maxggarg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2016
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start maxggarg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2228
- 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:3248
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1820 -s 1036
  2⤵
  - Program crash
  PID:3020

C:\Windows\SysWOW64\maxggarg\mbhbwmkz.exe
C:\Windows\SysWOW64\maxggarg\mbhbwmkz.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b94d0e8435e9f0dadb6f683f7eaf08ef0917aabd80ab0c5ae38296921bc6d566.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3016 -s 512
  2⤵
  - Program crash
  PID:832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1820 -ip 1820
1⤵
PID:1824

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3016 -ip 3016
1⤵
PID:228

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\mbhbwmkz.exe

Filesize
12.7MB

MD5
bfb6a60d5ea30174eb06e2d64298e54d

SHA1
a27307bc0399552ba6a0a875c46c76d4d41d54e4

SHA256
1038031b5eb0313de2529eae5a29f4ef012363e4eefa388f6e72ea1900a0ab92

SHA512
aff749ff44023978c37d261e7592f02fa20d21db51a3a2face6fd2e23c82dbb7135ed75a96ee161327b52a559b1cf085a1d0f33b9bf89194cb3d0f60f5968093

Download Submit
memory/1820-7-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1820-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1820-1-0x0000000000740000-0x0000000000840000-memory.dmp

Filesize
1024KB

Download
memory/1820-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1820-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1820-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2804-13-0x0000000000720000-0x0000000000735000-memory.dmp

Filesize
84KB

Download
memory/2804-15-0x0000000000720000-0x0000000000735000-memory.dmp

Filesize
84KB

Download
memory/2804-16-0x0000000000720000-0x0000000000735000-memory.dmp

Filesize
84KB

Download
memory/3016-12-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3016-11-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3016-18-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads