tofsee | 59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085

General

Target

JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe
Size

343KB
MD5

8bac9589ab10735825e69f14afe283b4
SHA1

d7e4c66cd54b61258a08b3ef44f6c6919b3b51e4
SHA256

59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085
SHA512

c48d4a9dc8387a1a81c77095f060c874a3c0860d4070769ccbf3fd92b9d43310a6dc62b17f7f6f30cfc61b1e7baed3b465f9eecdf8d0d2aca9a5420cbba42dc5
SSDEEP

3072:vPW6RBNZQyyT0TXOtpkAx1O/kCcNVPImEWOrle9rcQLRDLspSiyl2kBxLWhW/9X6:3DUEk/OqIQOrletcQVH2kDaQ/9O3tHt

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
328	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\yocdypjp\ImagePath = "C:\\Windows\\SysWOW64\\yocdypjp\\glvlze.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe

Deletes itself 1 IoCs

pid	Process
2156	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3928	glvlze.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3928 set thread context of 2156	3928	glvlze.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
1624	sc.exe
1212	sc.exe
3176	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
1104	3876	WerFault.exe	82
2012	3928	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	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	glvlze.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3876 wrote to memory of 2080	3876	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe	83
PID 3876 wrote to memory of 2080	3876	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe	83
PID 3876 wrote to memory of 2080	3876	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe	83
PID 3876 wrote to memory of 752	3876	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe	85
PID 3876 wrote to memory of 752	3876	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe	85
PID 3876 wrote to memory of 752	3876	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe	85
PID 3876 wrote to memory of 1624	3876	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe	88
PID 3876 wrote to memory of 1624	3876	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe	88
PID 3876 wrote to memory of 1624	3876	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe	88
PID 3876 wrote to memory of 1212	3876	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe	90
PID 3876 wrote to memory of 1212	3876	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe	90
PID 3876 wrote to memory of 1212	3876	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe	90
PID 3876 wrote to memory of 3176	3876	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe	92
PID 3876 wrote to memory of 3176	3876	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe	92
PID 3876 wrote to memory of 3176	3876	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe	92
PID 3876 wrote to memory of 328	3876	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe	95
PID 3876 wrote to memory of 328	3876	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe	95
PID 3876 wrote to memory of 328	3876	JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe	95
PID 3928 wrote to memory of 2156	3928	glvlze.exe	103
PID 3928 wrote to memory of 2156	3928	glvlze.exe	103
PID 3928 wrote to memory of 2156	3928	glvlze.exe	103
PID 3928 wrote to memory of 2156	3928	glvlze.exe	103
PID 3928 wrote to memory of 2156	3928	glvlze.exe	103

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3876
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yocdypjp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2080
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\glvlze.exe" C:\Windows\SysWOW64\yocdypjp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yocdypjp binPath= "C:\Windows\SysWOW64\yocdypjp\glvlze.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yocdypjp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1212
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yocdypjp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3176
- 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:328
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3876 -s 1036
  2⤵
  - Program crash
  PID:1104

C:\Windows\SysWOW64\yocdypjp\glvlze.exe
C:\Windows\SysWOW64\yocdypjp\glvlze.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_59376aedb4b6ed98c11e98f46edff7c62e159a6d4d63ed2eaaa46805006b0085.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3928
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2156
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3928 -s 508
  2⤵
  - Program crash
  PID:2012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3876 -ip 3876
1⤵
PID:880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3928 -ip 3928
1⤵
PID:2716

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\glvlze.exe

Filesize
12.8MB

MD5
eabe28bdafcf98f548948a8291b7778f

SHA1
48cf037071bd6b063107484643e97401ad14a323

SHA256
07f7f9a091ac994ebe9cdb69e1b390f93d0dc557c5eb09f2cd62b11c58718cb6

SHA512
892bd96da2b9fc0d247c59806d0ef3216b64636aad81371ca5c24dc7220296877b2a220a6729fb8022e42f6f734feea808e2d3071b71c941f759dea8737709cc

Download Submit
memory/2156-11-0x0000000000A70000-0x0000000000A85000-memory.dmp

Filesize
84KB

Download
memory/2156-13-0x0000000000A70000-0x0000000000A85000-memory.dmp

Filesize
84KB

Download
memory/2156-14-0x0000000000A70000-0x0000000000A85000-memory.dmp

Filesize
84KB

Download
memory/3876-1-0x0000000002C90000-0x0000000002D90000-memory.dmp

Filesize
1024KB

Download
memory/3876-2-0x0000000004890000-0x00000000048A3000-memory.dmp

Filesize
76KB

Download
memory/3876-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3876-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3876-8-0x0000000004890000-0x00000000048A3000-memory.dmp

Filesize
76KB

Download
memory/3876-7-0x0000000000400000-0x0000000002B4E000-memory.dmp

Filesize
39.3MB

Download
memory/3928-15-0x0000000000400000-0x0000000002B4E000-memory.dmp

Filesize
39.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads