tofsee | bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac

General

Target

JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe
Size

254KB
MD5

3e043f2612e852802ff985d954946303
SHA1

f930345bf9605d7c343067c234b5985eec755aff
SHA256

bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac
SHA512

eb7be1f0017628ad12a9f5d37c38d2cbc10f9f5c62a031b669b39fa8118e43dfd0358ace83e94d6b7159c705d32f4c5f8814cde0489a33895528fca158708956
SSDEEP

3072:N0Op87yjsXyye+S0k3Ge2NnU5Z4mBwFkASvIlPfcRjOIqvMRbY8YhVccii+duBpp:dEyh2eV4mkkASgNajOILRsN/ccngHR

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
2028	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\yzmuwgxp\ImagePath = "C:\\Windows\\SysWOW64\\yzmuwgxp\\zayileju.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe

Deletes itself 1 IoCs

pid	Process
4564	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4316	zayileju.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4316 set thread context of 4564	4316	zayileju.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4844	sc.exe
2344	sc.exe
4292	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
3652	592	WerFault.exe	81
1364	4316	WerFault.exe	92

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zayileju.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 592 wrote to memory of 3316	592	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe	82
PID 592 wrote to memory of 3316	592	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe	82
PID 592 wrote to memory of 3316	592	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe	82
PID 592 wrote to memory of 3388	592	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe	84
PID 592 wrote to memory of 3388	592	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe	84
PID 592 wrote to memory of 3388	592	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe	84
PID 592 wrote to memory of 4844	592	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe	86
PID 592 wrote to memory of 4844	592	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe	86
PID 592 wrote to memory of 4844	592	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe	86
PID 592 wrote to memory of 2344	592	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe	88
PID 592 wrote to memory of 2344	592	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe	88
PID 592 wrote to memory of 2344	592	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe	88
PID 592 wrote to memory of 4292	592	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe	90
PID 592 wrote to memory of 4292	592	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe	90
PID 592 wrote to memory of 4292	592	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe	90
PID 592 wrote to memory of 2028	592	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe	93
PID 592 wrote to memory of 2028	592	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe	93
PID 592 wrote to memory of 2028	592	JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe	93
PID 4316 wrote to memory of 4564	4316	zayileju.exe	98
PID 4316 wrote to memory of 4564	4316	zayileju.exe	98
PID 4316 wrote to memory of 4564	4316	zayileju.exe	98
PID 4316 wrote to memory of 4564	4316	zayileju.exe	98
PID 4316 wrote to memory of 4564	4316	zayileju.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:592
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yzmuwgxp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3316
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zayileju.exe" C:\Windows\SysWOW64\yzmuwgxp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3388
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yzmuwgxp binPath= "C:\Windows\SysWOW64\yzmuwgxp\zayileju.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yzmuwgxp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2344
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yzmuwgxp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4292
- 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:2028
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 592 -s 1124
  2⤵
  - Program crash
  PID:3652

C:\Windows\SysWOW64\yzmuwgxp\zayileju.exe
C:\Windows\SysWOW64\yzmuwgxp\zayileju.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bcab11e14d281232fd89ecbd980282470b5d7c451ed76f0d6bb5509991c176ac.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4316
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4564
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4316 -s 516
  2⤵
  - Program crash
  PID:1364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 592 -ip 592
1⤵
PID:212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4316 -ip 4316
1⤵
PID:4244

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\zayileju.exe

Filesize
11.9MB

MD5
099ac0485e972c7e65955c6896e06597

SHA1
9efde20cb41cb1a3ed77f3069821de23e0c2d44b

SHA256
d4fb17c8f5a66931b9679cfd0aa28f2a219b533e93397428483ea49971d11e36

SHA512
d3cd7bde669e068c52b67872bceea4f2f610cc8a90e6941c578900f24c5b287d3e7ddcdcd441e01b1c284430e8de01e3d2051910fbac4b5f2a0cc97c61ba7614

Download Submit
memory/592-1-0x0000000001180000-0x0000000001280000-memory.dmp

Filesize
1024KB

Download
memory/592-2-0x0000000001130000-0x0000000001143000-memory.dmp

Filesize
76KB

Download
memory/592-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/592-7-0x0000000000400000-0x0000000001085000-memory.dmp

Filesize
12.5MB

Download
memory/592-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/592-8-0x0000000001130000-0x0000000001143000-memory.dmp

Filesize
76KB

Download
memory/4316-15-0x0000000000400000-0x0000000001085000-memory.dmp

Filesize
12.5MB

Download
memory/4564-13-0x0000000000C20000-0x0000000000C35000-memory.dmp

Filesize
84KB

Download
memory/4564-11-0x0000000000C20000-0x0000000000C35000-memory.dmp

Filesize
84KB

Download
memory/4564-14-0x0000000000C20000-0x0000000000C35000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads