tofsee | 66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac

General

Target

JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe
Size

238KB
MD5

8271ce4f3cbd9b09bf15c5a68e88b0da
SHA1

8a67d568576e34c1c6e94b61f659f450df2ef96d
SHA256

66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac
SHA512

27c67f1762515a99e1260866235aee0904685144af6f09bb5c384a0caca2e95438310b690f12e32b8d46d349d9027d2d76a589bcfdaed3c75e69ce05dd2a0bd4
SSDEEP

3072:a7V2YJR9xNKX/hxlknRrKpyCaU0m+J2x5UrqGjcxSVggjcGkNIVqI7sxkgaBChMg:bYr9xNKXSnQMmJWr0K7ITsq7igavwVf

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
956	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\xoqnwayp\ImagePath = "C:\\Windows\\SysWOW64\\xoqnwayp\\slgswlw.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	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe

Deletes itself 1 IoCs

pid	Process
2324	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4276	slgswlw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4276 set thread context of 2324	4276	slgswlw.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
1452	sc.exe
1712	sc.exe
396	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
4052	1144	WerFault.exe	82
3256	4276	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.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	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	slgswlw.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1144 wrote to memory of 3304	1144	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	83
PID 1144 wrote to memory of 3304	1144	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	83
PID 1144 wrote to memory of 3304	1144	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	83
PID 1144 wrote to memory of 2548	1144	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	85
PID 1144 wrote to memory of 2548	1144	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	85
PID 1144 wrote to memory of 2548	1144	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	85
PID 1144 wrote to memory of 1712	1144	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	87
PID 1144 wrote to memory of 1712	1144	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	87
PID 1144 wrote to memory of 1712	1144	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	87
PID 1144 wrote to memory of 396	1144	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	89
PID 1144 wrote to memory of 396	1144	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	89
PID 1144 wrote to memory of 396	1144	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	89
PID 1144 wrote to memory of 1452	1144	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	92
PID 1144 wrote to memory of 1452	1144	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	92
PID 1144 wrote to memory of 1452	1144	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	92
PID 1144 wrote to memory of 956	1144	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	95
PID 1144 wrote to memory of 956	1144	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	95
PID 1144 wrote to memory of 956	1144	JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe	95
PID 4276 wrote to memory of 2324	4276	slgswlw.exe	101
PID 4276 wrote to memory of 2324	4276	slgswlw.exe	101
PID 4276 wrote to memory of 2324	4276	slgswlw.exe	101
PID 4276 wrote to memory of 2324	4276	slgswlw.exe	101
PID 4276 wrote to memory of 2324	4276	slgswlw.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1144
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xoqnwayp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3304
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\slgswlw.exe" C:\Windows\SysWOW64\xoqnwayp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xoqnwayp binPath= "C:\Windows\SysWOW64\xoqnwayp\slgswlw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xoqnwayp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:396
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xoqnwayp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1452
- 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:956
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1144 -s 1036
  2⤵
  - Program crash
  PID:4052

C:\Windows\SysWOW64\xoqnwayp\slgswlw.exe
C:\Windows\SysWOW64\xoqnwayp\slgswlw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_66a6da04154d8f34b280188ff2e675b9137622f9046912a1761e1561b7321bac.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4276
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2324
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4276 -s 516
  2⤵
  - Program crash
  PID:3256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1144 -ip 1144
1⤵
PID:1340

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4276 -ip 4276
1⤵
PID:4740

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\slgswlw.exe

Filesize
13.0MB

MD5
b8fe94a403cc59b5510fc2541e665bce

SHA1
ebf4a20c8d6a271d1334f0af0078fe075e09138c

SHA256
cd6207c30f3107ab2b6894aeb614f6c56d999f2868ad07b93fdfcb359811d857

SHA512
d833afe48f0e1bf0002e71350bd9c4a6174696db69e15d4404d7dabc8d516c55137bddb5ec4771bfded2cfeedc3d43d7379e3c03af7e97cb1a49e605270f5e1f

Download Submit
memory/1144-7-0x00000000005A0000-0x00000000005AD000-memory.dmp

Filesize
52KB

Download
memory/1144-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1144-1-0x00000000005D0000-0x00000000005E3000-memory.dmp

Filesize
76KB

Download
memory/1144-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1144-8-0x00000000005D0000-0x00000000005E3000-memory.dmp

Filesize
76KB

Download
memory/1144-0-0x00000000005A0000-0x00000000005AD000-memory.dmp

Filesize
52KB

Download
memory/1144-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2324-13-0x00000000003B0000-0x00000000003C5000-memory.dmp

Filesize
84KB

Download
memory/2324-15-0x00000000003B0000-0x00000000003C5000-memory.dmp

Filesize
84KB

Download
memory/2324-16-0x00000000003B0000-0x00000000003C5000-memory.dmp

Filesize
84KB

Download
memory/4276-11-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4276-12-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4276-10-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4276-18-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads