tofsee | 4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226

General

Target

JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe
Size

284KB
MD5

7f73ad66202a5d4689c977e9351b7cfa
SHA1

e679d98251eedcc308068c1488908168aa82ce14
SHA256

4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226
SHA512

cbf6f9a7d262ce7623c8d8ddb6720d627c93c61ac63b711f9e55b3fcb95269ac9a00d171d630a9c1719c7ffaae9e1e969fbbe7f76c8813b4d73fbc70a29f6c79
SSDEEP

6144:EKDTIWFp63IcFTbID2uzbgwu6L7ITsqSigaTwVf:FTIQp635h62unnn7s

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

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
1300	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\dfaivjkw\ImagePath = "C:\\Windows\\SysWOW64\\dfaivjkw\\unbnfzbo.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe

Deletes itself 1 IoCs

pid	Process
2260	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
872	unbnfzbo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 872 set thread context of 2260	872	unbnfzbo.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
3720	sc.exe
3896	sc.exe
1356	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
1648	4988	WerFault.exe	82
1164	872	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	netsh.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	unbnfzbo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4988 wrote to memory of 3652	4988	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe	83
PID 4988 wrote to memory of 3652	4988	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe	83
PID 4988 wrote to memory of 3652	4988	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe	83
PID 4988 wrote to memory of 5112	4988	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe	85
PID 4988 wrote to memory of 5112	4988	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe	85
PID 4988 wrote to memory of 5112	4988	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe	85
PID 4988 wrote to memory of 3720	4988	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe	87
PID 4988 wrote to memory of 3720	4988	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe	87
PID 4988 wrote to memory of 3720	4988	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe	87
PID 4988 wrote to memory of 3896	4988	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe	89
PID 4988 wrote to memory of 3896	4988	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe	89
PID 4988 wrote to memory of 3896	4988	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe	89
PID 4988 wrote to memory of 1356	4988	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe	91
PID 4988 wrote to memory of 1356	4988	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe	91
PID 4988 wrote to memory of 1356	4988	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe	91
PID 4988 wrote to memory of 1300	4988	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe	94
PID 4988 wrote to memory of 1300	4988	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe	94
PID 4988 wrote to memory of 1300	4988	JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe	94
PID 872 wrote to memory of 2260	872	unbnfzbo.exe	100
PID 872 wrote to memory of 2260	872	unbnfzbo.exe	100
PID 872 wrote to memory of 2260	872	unbnfzbo.exe	100
PID 872 wrote to memory of 2260	872	unbnfzbo.exe	100
PID 872 wrote to memory of 2260	872	unbnfzbo.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4988
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dfaivjkw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\unbnfzbo.exe" C:\Windows\SysWOW64\dfaivjkw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5112
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dfaivjkw binPath= "C:\Windows\SysWOW64\dfaivjkw\unbnfzbo.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3720
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dfaivjkw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3896
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dfaivjkw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1356
- 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:1300
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4988 -s 1208
  2⤵
  - Program crash
  PID:1648

C:\Windows\SysWOW64\dfaivjkw\unbnfzbo.exe
C:\Windows\SysWOW64\dfaivjkw\unbnfzbo.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4d462207c5e280d0f7fa051e76ffc2098dcc4c5bf5a57eb3b34ed11a34cb6226.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:872
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2260
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 528
  2⤵
  - Program crash
  PID:1164

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4988 -ip 4988
1⤵
PID:1372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 872 -ip 872
1⤵
PID:5056

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\unbnfzbo.exe

Filesize
14.4MB

MD5
3383e4afb9b35dfa34cded5cd98061ca

SHA1
f1b8eabd0f7f0a6d3f7705e1826575abcf61f430

SHA256
397b677dd07fd6101a7f8dc47114bfd7cdf1f6b573f7dadc4aa6195026f37b39

SHA512
9e944c403fc6ef02825e006db3ca529aff5989dd51befabbfb922d3ac3c75c69fb4e27fd215d27ae3863334a8490a7d29c63a3a69411607050f5db655bfde9de

Download Submit
memory/872-11-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/872-10-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/872-16-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2260-12-0x0000000000E40000-0x0000000000E55000-memory.dmp

Filesize
84KB

Download
memory/2260-14-0x0000000000E40000-0x0000000000E55000-memory.dmp

Filesize
84KB

Download
memory/2260-15-0x0000000000E40000-0x0000000000E55000-memory.dmp

Filesize
84KB

Download
memory/4988-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4988-1-0x00000000004F0000-0x0000000000503000-memory.dmp

Filesize
76KB

Download
memory/4988-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4988-8-0x00000000004F0000-0x0000000000503000-memory.dmp

Filesize
76KB

Download
memory/4988-7-0x00000000004E0000-0x00000000004ED000-memory.dmp

Filesize
52KB

Download
memory/4988-6-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4988-0-0x00000000004E0000-0x00000000004ED000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads