tofsee | 9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626

General

Target

JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe
Size

233KB
MD5

526f3f70f2ce2f84f3ab1c115e86117b
SHA1

2320ba17d9412c954c553bcaec33cf30ca2d826c
SHA256

9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626
SHA512

b15b716679301c3e109a8d1e06ae95c4c170633ff1ecf9dfdd78a930003b73059a36be2ea7b2732089278b7318ccec2110c971a3173863b123407525e3256c06
SSDEEP

6144:7BbOZy8Skh3L+3v/1WhR4o5vfjjlmXR8K:7BbOZy8fa3v/IySNsa

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
3596	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\zugctdem\ImagePath = "C:\\Windows\\SysWOW64\\zugctdem\\audnadiu.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_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe

Deletes itself 1 IoCs

pid	Process
400	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1472	audnadiu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1472 set thread context of 400	1472	audnadiu.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
1772	sc.exe
1764	sc.exe
4572	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
1588	2272	WerFault.exe	82
2172	1472	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	audnadiu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.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	sc.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	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 2272 wrote to memory of 4608	2272	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe	83
PID 2272 wrote to memory of 4608	2272	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe	83
PID 2272 wrote to memory of 4608	2272	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe	83
PID 2272 wrote to memory of 2120	2272	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe	85
PID 2272 wrote to memory of 2120	2272	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe	85
PID 2272 wrote to memory of 2120	2272	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe	85
PID 2272 wrote to memory of 1772	2272	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe	87
PID 2272 wrote to memory of 1772	2272	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe	87
PID 2272 wrote to memory of 1772	2272	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe	87
PID 2272 wrote to memory of 1764	2272	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe	89
PID 2272 wrote to memory of 1764	2272	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe	89
PID 2272 wrote to memory of 1764	2272	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe	89
PID 2272 wrote to memory of 4572	2272	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe	92
PID 2272 wrote to memory of 4572	2272	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe	92
PID 2272 wrote to memory of 4572	2272	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe	92
PID 2272 wrote to memory of 3596	2272	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe	95
PID 2272 wrote to memory of 3596	2272	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe	95
PID 2272 wrote to memory of 3596	2272	JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe	95
PID 1472 wrote to memory of 400	1472	audnadiu.exe	101
PID 1472 wrote to memory of 400	1472	audnadiu.exe	101
PID 1472 wrote to memory of 400	1472	audnadiu.exe	101
PID 1472 wrote to memory of 400	1472	audnadiu.exe	101
PID 1472 wrote to memory of 400	1472	audnadiu.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zugctdem\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4608
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\audnadiu.exe" C:\Windows\SysWOW64\zugctdem\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2120
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zugctdem binPath= "C:\Windows\SysWOW64\zugctdem\audnadiu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zugctdem "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zugctdem
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4572
- 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:3596
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 1224
  2⤵
  - Program crash
  PID:1588

C:\Windows\SysWOW64\zugctdem\audnadiu.exe
C:\Windows\SysWOW64\zugctdem\audnadiu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9ff9e0283dcadd5b0776529825da327d833e7ebe118ac5306703316f7a3e0626.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1472
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:400
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1472 -s 520
  2⤵
  - Program crash
  PID:2172

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2272 -ip 2272
1⤵
PID:4916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1472 -ip 1472
1⤵
PID:3852

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\audnadiu.exe

Filesize
14.4MB

MD5
071e90111fa70983199bd73feb8f133b

SHA1
e5c0594d87b1901efc66a947446170582c9a1cbc

SHA256
32cb246f2d45706f24517ad9e2a43b3bdf627c85f3e5b9fa34a41872c66482aa

SHA512
85db0dd52f9ad5af0039b7a442f9ea54e4e0854410f2c71c537df520bcb1187e67963fbd8b3aa04865e7567fb8a9eba18d27ceca0afdf6e4f7e33c5d9efc92a2

Download Submit
memory/400-12-0x0000000000E80000-0x0000000000E95000-memory.dmp

Filesize
84KB

Download
memory/400-17-0x0000000000E80000-0x0000000000E95000-memory.dmp

Filesize
84KB

Download
memory/400-15-0x0000000000E80000-0x0000000000E95000-memory.dmp

Filesize
84KB

Download
memory/1472-16-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/1472-11-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/1472-13-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/2272-9-0x00000000025C0000-0x00000000025D3000-memory.dmp

Filesize
76KB

Download
memory/2272-8-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/2272-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2272-1-0x0000000000960000-0x0000000000A60000-memory.dmp

Filesize
1024KB

Download
memory/2272-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2272-2-0x00000000025C0000-0x00000000025D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads