tofsee | a86bd033111762b870d19d8093efe3e70a4383b2167b5943c90a85a350d264b4

General

Target

99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe
Size

12.4MB
MD5

99bd790593bc23873774f48cb8b6f631
SHA1

c50de27c7e448042bfdf7b127799bc7e2938ad63
SHA256

a86bd033111762b870d19d8093efe3e70a4383b2167b5943c90a85a350d264b4
SHA512

c70e97c269ee79d43a83bde7578cfa0904812f42f61e166f99ff98ff2f641dffda01cfb7acc6be44fb2dfbfb04cc217bae749f083906030285550c5e2a44c4f7
SSDEEP

3072:iQA1TtRdQBPuEcbBNu28bMEqfCxn2kuIPe7epgDnESZ25jnE26nnipm0ul4p7fLO:iQA1BRCu93f8bMEoFkYUlUUsap8foX

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
3424	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\ndpymofj\ImagePath = "C:\\Windows\\SysWOW64\\ndpymofj\\xcyqord.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3372	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4752	xcyqord.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4752 set thread context of 3372	4752	xcyqord.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
1388	sc.exe
4560	sc.exe
4608	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

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	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xcyqord.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1408 wrote to memory of 4840	1408	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	83
PID 1408 wrote to memory of 4840	1408	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	83
PID 1408 wrote to memory of 4840	1408	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	83
PID 1408 wrote to memory of 2688	1408	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	85
PID 1408 wrote to memory of 2688	1408	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	85
PID 1408 wrote to memory of 2688	1408	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	85
PID 1408 wrote to memory of 1388	1408	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	87
PID 1408 wrote to memory of 1388	1408	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	87
PID 1408 wrote to memory of 1388	1408	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	87
PID 1408 wrote to memory of 4560	1408	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	90
PID 1408 wrote to memory of 4560	1408	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	90
PID 1408 wrote to memory of 4560	1408	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	90
PID 1408 wrote to memory of 4608	1408	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	94
PID 1408 wrote to memory of 4608	1408	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	94
PID 1408 wrote to memory of 4608	1408	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	94
PID 1408 wrote to memory of 3424	1408	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	97
PID 1408 wrote to memory of 3424	1408	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	97
PID 1408 wrote to memory of 3424	1408	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	97
PID 4752 wrote to memory of 3372	4752	xcyqord.exe	102
PID 4752 wrote to memory of 3372	4752	xcyqord.exe	102
PID 4752 wrote to memory of 3372	4752	xcyqord.exe	102
PID 4752 wrote to memory of 3372	4752	xcyqord.exe	102
PID 4752 wrote to memory of 3372	4752	xcyqord.exe	102

C:\Users\Admin\AppData\Local\Temp\99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1408
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ndpymofj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4840
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xcyqord.exe" C:\Windows\SysWOW64\ndpymofj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ndpymofj binPath= "C:\Windows\SysWOW64\ndpymofj\xcyqord.exe /d\"C:\Users\Admin\AppData\Local\Temp\99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1388
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ndpymofj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4560
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ndpymofj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4608
- 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:3424

C:\Windows\SysWOW64\ndpymofj\xcyqord.exe
C:\Windows\SysWOW64\ndpymofj\xcyqord.exe /d"C:\Users\Admin\AppData\Local\Temp\99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4752
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3372

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\xcyqord.exe

Filesize
11.7MB

MD5
e9d76db6d91c69f83cdee30d27919dd3

SHA1
15a4617a762bec4ca4050ae8c6cfdccaa00dd684

SHA256
5846762b5bda0def2cc0a2810268090755f1d30fc50cc4d000a68ac23f661cbe

SHA512
2460a6dcc925ab14fdbd5e47a15aa1d97ea578edac2845f0259619c4ed9836db7802ce9858fc31476b19e38e22163021b6bbee646f6e2d036602a77d85f5dca7

Download Submit
memory/1408-8-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1408-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1408-1-0x00000000007B0000-0x00000000008B0000-memory.dmp

Filesize
1024KB

Download
memory/1408-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1408-9-0x00000000008B0000-0x00000000008C3000-memory.dmp

Filesize
76KB

Download
memory/1408-2-0x00000000008B0000-0x00000000008C3000-memory.dmp

Filesize
76KB

Download
memory/3372-14-0x0000000000750000-0x0000000000765000-memory.dmp

Filesize
84KB

Download
memory/3372-16-0x0000000000750000-0x0000000000765000-memory.dmp

Filesize
84KB

Download
memory/3372-19-0x0000000000750000-0x0000000000765000-memory.dmp

Filesize
84KB

Download
memory/4752-11-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4752-12-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4752-13-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4752-18-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads