tofsee | d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e

General

Target

JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe
Size

262KB
MD5

741c885dfd2fc7e1f7414e1dc86bc4f6
SHA1

ec2c42d54aea062cc145b5830d6544f24c4f941d
SHA256

d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e
SHA512

46949d434dbb5867c79a5cfd89d358d6a633f30c7a0cbce286711b2092784165771589b05e31cb0b9ece65dca86470692eeb0699e7381678b48984098640413e
SSDEEP

6144:hvkKxGgD4AD+s72hPJg6C8Z+LPqhSE6t1OCGwUXB4RZucX:hMAfD4ADv72hOeZ+LP06nYRK

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
1948	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\hxgvaasd\ImagePath = "C:\\Windows\\SysWOW64\\hxgvaasd\\trgsmitj.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe

Deletes itself 1 IoCs

pid	Process
2748	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4568	trgsmitj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4568 set thread context of 2748	4568	trgsmitj.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
4368	sc.exe
464	sc.exe
1604	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
1840	3172	WerFault.exe	81
3976	4568	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	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	trgsmitj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.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	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3172 wrote to memory of 636	3172	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe	82
PID 3172 wrote to memory of 636	3172	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe	82
PID 3172 wrote to memory of 636	3172	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe	82
PID 3172 wrote to memory of 4036	3172	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe	84
PID 3172 wrote to memory of 4036	3172	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe	84
PID 3172 wrote to memory of 4036	3172	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe	84
PID 3172 wrote to memory of 4368	3172	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe	86
PID 3172 wrote to memory of 4368	3172	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe	86
PID 3172 wrote to memory of 4368	3172	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe	86
PID 3172 wrote to memory of 464	3172	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe	88
PID 3172 wrote to memory of 464	3172	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe	88
PID 3172 wrote to memory of 464	3172	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe	88
PID 3172 wrote to memory of 1604	3172	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe	90
PID 3172 wrote to memory of 1604	3172	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe	90
PID 3172 wrote to memory of 1604	3172	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe	90
PID 3172 wrote to memory of 1948	3172	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe	93
PID 3172 wrote to memory of 1948	3172	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe	93
PID 3172 wrote to memory of 1948	3172	JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe	93
PID 4568 wrote to memory of 2748	4568	trgsmitj.exe	97
PID 4568 wrote to memory of 2748	4568	trgsmitj.exe	97
PID 4568 wrote to memory of 2748	4568	trgsmitj.exe	97
PID 4568 wrote to memory of 2748	4568	trgsmitj.exe	97
PID 4568 wrote to memory of 2748	4568	trgsmitj.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3172
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hxgvaasd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:636
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\trgsmitj.exe" C:\Windows\SysWOW64\hxgvaasd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hxgvaasd binPath= "C:\Windows\SysWOW64\hxgvaasd\trgsmitj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4368
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hxgvaasd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:464
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hxgvaasd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1604
- 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:1948
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3172 -s 572
  2⤵
  - Program crash
  PID:1840

C:\Windows\SysWOW64\hxgvaasd\trgsmitj.exe
C:\Windows\SysWOW64\hxgvaasd\trgsmitj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4568
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4568 -s 528
  2⤵
  - Program crash
  PID:3976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3172 -ip 3172
1⤵
PID:1128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4568 -ip 4568
1⤵
PID:2200

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\trgsmitj.exe

Filesize
11.5MB

MD5
6c38dbbdb90fc637159c6dde282c5089

SHA1
9bacf7ca2143759f6adec25c805dc3337c8bc7f0

SHA256
a4cd1c5a2c5026047b9d910fe87e7a7c72e594fcdfed47042736a04d3c7b7358

SHA512
e085b0d0458c1631825c916131e3180e7b677853bef68faa275c919b683c9bcd7b118de5d89412fe02618510fafc9ed87336a32b4b13abbeb6defa33275d124a

Download Submit
memory/2748-13-0x0000000001100000-0x0000000001115000-memory.dmp

Filesize
84KB

Download
memory/2748-20-0x0000000001100000-0x0000000001115000-memory.dmp

Filesize
84KB

Download
memory/2748-19-0x0000000001100000-0x0000000001115000-memory.dmp

Filesize
84KB

Download
memory/2748-8-0x0000000001100000-0x0000000001115000-memory.dmp

Filesize
84KB

Download
memory/2748-18-0x0000000001100000-0x0000000001115000-memory.dmp

Filesize
84KB

Download
memory/3172-16-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3172-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3172-1-0x0000000000AE0000-0x0000000000BE0000-memory.dmp

Filesize
1024KB

Download
memory/3172-15-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/3172-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3172-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4568-10-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/4568-9-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads