tofsee | e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f

General

Target

JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe
Size

136KB
MD5

0766180db106d51aafd2827ba7457f36
SHA1

4121689e5a32e973cf6bc9023235138795fb708b
SHA256

e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f
SHA512

258becbbdf9795703d4d9c15cde791f3647178679f2157300c754e9fde8d2ad50c96eb92369202c2070bdccba7affe0335126ae2d31acb9209f039aa898e4143
SSDEEP

1536:2L0xHUcaPBDfRd5FJwUOOe/Wv8ThGJNcuYhsiPBycnD5BKCJZW+s1Wjva5Y4dC8:Kag5GXOe+v+sPcuWy8D55rWtoj0Y5

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
3188	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\wiaczces\ImagePath = "C:\\Windows\\SysWOW64\\wiaczces\\xrnteogm.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_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe

Deletes itself 1 IoCs

pid	Process
2300	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4208	xrnteogm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4208 set thread context of 2300	4208	xrnteogm.exe	106

Launches sc.exe 3 IoCs

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

pid	Process
3232	sc.exe
4564	sc.exe
1148	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xrnteogm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.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 2916 wrote to memory of 4688	2916	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe	86
PID 2916 wrote to memory of 4688	2916	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe	86
PID 2916 wrote to memory of 4688	2916	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe	86
PID 2916 wrote to memory of 716	2916	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe	88
PID 2916 wrote to memory of 716	2916	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe	88
PID 2916 wrote to memory of 716	2916	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe	88
PID 2916 wrote to memory of 3232	2916	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe	90
PID 2916 wrote to memory of 3232	2916	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe	90
PID 2916 wrote to memory of 3232	2916	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe	90
PID 2916 wrote to memory of 4564	2916	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe	92
PID 2916 wrote to memory of 4564	2916	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe	92
PID 2916 wrote to memory of 4564	2916	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe	92
PID 2916 wrote to memory of 1148	2916	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe	94
PID 2916 wrote to memory of 1148	2916	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe	94
PID 2916 wrote to memory of 1148	2916	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe	94
PID 2916 wrote to memory of 3188	2916	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe	97
PID 2916 wrote to memory of 3188	2916	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe	97
PID 2916 wrote to memory of 3188	2916	JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe	97
PID 4208 wrote to memory of 2300	4208	xrnteogm.exe	106
PID 4208 wrote to memory of 2300	4208	xrnteogm.exe	106
PID 4208 wrote to memory of 2300	4208	xrnteogm.exe	106
PID 4208 wrote to memory of 2300	4208	xrnteogm.exe	106
PID 4208 wrote to memory of 2300	4208	xrnteogm.exe	106

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wiaczces\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4688
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xrnteogm.exe" C:\Windows\SysWOW64\wiaczces\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wiaczces binPath= "C:\Windows\SysWOW64\wiaczces\xrnteogm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3232
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wiaczces "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wiaczces
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1148
- 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:3188

C:\Windows\SysWOW64\wiaczces\xrnteogm.exe
C:\Windows\SysWOW64\wiaczces\xrnteogm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e270e77ba8ea40451c018d7b1c26954087ebf4d7880cbc7dc21e8822d41c217f.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4208
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2300

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\xrnteogm.exe

Filesize
11.8MB

MD5
d638cf4f32911876dfdbb3131632de5d

SHA1
6b91ce6f23fe9e2eebac65d1209ecfa560c950c5

SHA256
126540e5540c571fad992bf47393df777102259e0a7fe1860760d0c4e765faa7

SHA512
9d5e1b6c68c22ae69613276fbaf0eb4b51ec18578ba4bbc6751539416625b056f913bc6ae0a08af43f68b57efa6d9ce6d0c3fb4a24eb51e7c5f5cd1776e3ee65

Download Submit
memory/2300-16-0x00000000006B0000-0x00000000006C5000-memory.dmp

Filesize
84KB

Download
memory/2300-14-0x00000000006B0000-0x00000000006C5000-memory.dmp

Filesize
84KB

Download
memory/2300-19-0x00000000006B0000-0x00000000006C5000-memory.dmp

Filesize
84KB

Download
memory/2916-9-0x0000000000650000-0x0000000000663000-memory.dmp

Filesize
76KB

Download
memory/2916-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2916-2-0x0000000000650000-0x0000000000663000-memory.dmp

Filesize
76KB

Download
memory/2916-8-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/2916-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2916-1-0x0000000000690000-0x0000000000790000-memory.dmp

Filesize
1024KB

Download
memory/4208-11-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/4208-13-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/4208-12-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/4208-18-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads