tofsee | 565ff0ed3359ddf31e2d2f1b177e8528b97cef49092344afe3f74f5b27aa776b

General

Target

JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe
Size

12.7MB
MD5

5be9d4fd9ff1f99c65f794c0f2a1b018
SHA1

b13d77a02263281833793456086226e32348391f
SHA256

565ff0ed3359ddf31e2d2f1b177e8528b97cef49092344afe3f74f5b27aa776b
SHA512

90889ac38257b73c4a94a6bd514b307497f8d3d073203a7acc6c4ec482818428bbc16ff77a588079572ae67a367e89ecef4f7db68257d442f10073df72d721cb
SSDEEP

49152:tkHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHn:

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
2512	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\skewjqch\ImagePath = "C:\\Windows\\SysWOW64\\skewjqch\\ohsitqjc.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe

Deletes itself 1 IoCs

pid	Process
2476	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2872	ohsitqjc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2872 set thread context of 2476	2872	ohsitqjc.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3204	sc.exe
3100	sc.exe
1832	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
3888	548	WerFault.exe	82
2032	2872	WerFault.exe	94

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_5be9d4fd9ff1f99c65f794c0f2a1b018.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	ohsitqjc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 548 wrote to memory of 928	548	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe	83
PID 548 wrote to memory of 928	548	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe	83
PID 548 wrote to memory of 928	548	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe	83
PID 548 wrote to memory of 620	548	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe	85
PID 548 wrote to memory of 620	548	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe	85
PID 548 wrote to memory of 620	548	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe	85
PID 548 wrote to memory of 3204	548	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe	88
PID 548 wrote to memory of 3204	548	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe	88
PID 548 wrote to memory of 3204	548	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe	88
PID 548 wrote to memory of 3100	548	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe	90
PID 548 wrote to memory of 3100	548	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe	90
PID 548 wrote to memory of 3100	548	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe	90
PID 548 wrote to memory of 1832	548	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe	92
PID 548 wrote to memory of 1832	548	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe	92
PID 548 wrote to memory of 1832	548	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe	92
PID 548 wrote to memory of 2512	548	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe	95
PID 548 wrote to memory of 2512	548	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe	95
PID 548 wrote to memory of 2512	548	JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe	95
PID 2872 wrote to memory of 2476	2872	ohsitqjc.exe	101
PID 2872 wrote to memory of 2476	2872	ohsitqjc.exe	101
PID 2872 wrote to memory of 2476	2872	ohsitqjc.exe	101
PID 2872 wrote to memory of 2476	2872	ohsitqjc.exe	101
PID 2872 wrote to memory of 2476	2872	ohsitqjc.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:548
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\skewjqch\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:928
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ohsitqjc.exe" C:\Windows\SysWOW64\skewjqch\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:620
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create skewjqch binPath= "C:\Windows\SysWOW64\skewjqch\ohsitqjc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3204
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description skewjqch "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3100
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start skewjqch
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1832
- 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:2512
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 548 -s 1044
  2⤵
  - Program crash
  PID:3888

C:\Windows\SysWOW64\skewjqch\ohsitqjc.exe
C:\Windows\SysWOW64\skewjqch\ohsitqjc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5be9d4fd9ff1f99c65f794c0f2a1b018.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2476
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2872 -s 512
  2⤵
  - Program crash
  PID:2032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 548 -ip 548
1⤵
PID:5116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2872 -ip 2872
1⤵
PID:2820

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\ohsitqjc.exe

Filesize
14.4MB

MD5
6f0c2edaaf51487b4b05e8a44d8891f7

SHA1
0d1c1f34ebeed8372cec0b20bce35bc7f2f8f84a

SHA256
3da5293a92c8d0efb32b6d9072a0ae2643f4f98bd2d15fec6e34e58589fdd02a

SHA512
b0da09c02c27166166edb63ca6e1d640b4caeb77d2f9d250d8eea540585bb89b582b0594dbc92de648f318e9cd770908e80763584bc703288edfeaea8694710e

Download Submit
memory/548-1-0x0000000000A70000-0x0000000000B70000-memory.dmp

Filesize
1024KB

Download
memory/548-2-0x0000000000920000-0x0000000000933000-memory.dmp

Filesize
76KB

Download
memory/548-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/548-8-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/548-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/548-9-0x0000000000920000-0x0000000000933000-memory.dmp

Filesize
76KB

Download
memory/2476-12-0x0000000000CA0000-0x0000000000CB5000-memory.dmp

Filesize
84KB

Download
memory/2476-14-0x0000000000CA0000-0x0000000000CB5000-memory.dmp

Filesize
84KB

Download
memory/2476-15-0x0000000000CA0000-0x0000000000CB5000-memory.dmp

Filesize
84KB

Download
memory/2872-11-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/2872-16-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads