tofsee | 00a7fe01857f4c5a118c936b5573b4c2755c8369534870394c3d61a5af058bcc

General

Target

JaffaCakes118_6673656f0eea34edbe311046d2525113.exe
Size

11.2MB
MD5

6673656f0eea34edbe311046d2525113
SHA1

d94411ba9cec4a38a2f2ddf11df6f2e27eb5cbfd
SHA256

00a7fe01857f4c5a118c936b5573b4c2755c8369534870394c3d61a5af058bcc
SHA512

f321489b42db6d062837414749adaefffeb87703f937b8ebb1e27a670cae75128af278222284b8bd72d26828535b1683d821e97b721d110b971d183312f37a01
SSDEEP

12288:ozZd0++++++++++++++++++++++++++++++++++++++++++++++++++++++++++/:ozZ

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.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
4060	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\zicnmlqu\ImagePath = "C:\\Windows\\SysWOW64\\zicnmlqu\\rdcqbltn.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe

Deletes itself 1 IoCs

pid	Process
2852	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1972	rdcqbltn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1972 set thread context of 2852	1972	rdcqbltn.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
744	sc.exe
4496	sc.exe
2136	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
4324	1972	WerFault.exe	94
2380	2096	WerFault.exe	83

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	JaffaCakes118_6673656f0eea34edbe311046d2525113.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rdcqbltn.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 1692	2096	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe	84
PID 2096 wrote to memory of 1692	2096	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe	84
PID 2096 wrote to memory of 1692	2096	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe	84
PID 2096 wrote to memory of 2820	2096	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe	86
PID 2096 wrote to memory of 2820	2096	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe	86
PID 2096 wrote to memory of 2820	2096	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe	86
PID 2096 wrote to memory of 744	2096	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe	88
PID 2096 wrote to memory of 744	2096	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe	88
PID 2096 wrote to memory of 744	2096	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe	88
PID 2096 wrote to memory of 4496	2096	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe	90
PID 2096 wrote to memory of 4496	2096	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe	90
PID 2096 wrote to memory of 4496	2096	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe	90
PID 2096 wrote to memory of 2136	2096	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe	92
PID 2096 wrote to memory of 2136	2096	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe	92
PID 2096 wrote to memory of 2136	2096	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe	92
PID 1972 wrote to memory of 2852	1972	rdcqbltn.exe	95
PID 1972 wrote to memory of 2852	1972	rdcqbltn.exe	95
PID 1972 wrote to memory of 2852	1972	rdcqbltn.exe	95
PID 1972 wrote to memory of 2852	1972	rdcqbltn.exe	95
PID 1972 wrote to memory of 2852	1972	rdcqbltn.exe	95
PID 2096 wrote to memory of 4060	2096	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe	99
PID 2096 wrote to memory of 4060	2096	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe	99
PID 2096 wrote to memory of 4060	2096	JaffaCakes118_6673656f0eea34edbe311046d2525113.exe	99

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6673656f0eea34edbe311046d2525113.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6673656f0eea34edbe311046d2525113.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2096
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zicnmlqu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1692
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rdcqbltn.exe" C:\Windows\SysWOW64\zicnmlqu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zicnmlqu binPath= "C:\Windows\SysWOW64\zicnmlqu\rdcqbltn.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6673656f0eea34edbe311046d2525113.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zicnmlqu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4496
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zicnmlqu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2136
- 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:4060
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 1036
  2⤵
  - Program crash
  PID:2380

C:\Windows\SysWOW64\zicnmlqu\rdcqbltn.exe
C:\Windows\SysWOW64\zicnmlqu\rdcqbltn.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6673656f0eea34edbe311046d2525113.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2852
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1972 -s 560
  2⤵
  - Program crash
  PID:4324

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1972 -ip 1972
1⤵
PID:768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2096 -ip 2096
1⤵
PID:5008

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\rdcqbltn.exe

Filesize
15.0MB

MD5
beaf202d885496f7beec3ff1c1484f8a

SHA1
f8f54e25bdc58ba768a33d922c7a8fd6419fab49

SHA256
ae3b85fd527b5b326819e58a470bd868d29ea6cd684d5854c02fc070788c234e

SHA512
29e9fd0a97b2f81b99d3617a63208952cfccaec7bd42e741ec3477bdf3a6346cf1f8f3a2336250aa828ad0d947e68f35abd43612a2b7a707d533b68d713e6698

Download Submit
memory/1972-10-0x0000000000400000-0x0000000002DAC000-memory.dmp

Filesize
41.7MB

Download
memory/2096-1-0x0000000002F10000-0x0000000003010000-memory.dmp

Filesize
1024KB

Download
memory/2096-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2096-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2096-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2096-12-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2096-11-0x0000000000400000-0x0000000002DAC000-memory.dmp

Filesize
41.7MB

Download
memory/2852-8-0x0000000000620000-0x0000000000635000-memory.dmp

Filesize
84KB

Download
memory/2852-14-0x0000000000620000-0x0000000000635000-memory.dmp

Filesize
84KB

Download
memory/2852-15-0x0000000000620000-0x0000000000635000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads