tofsee | ace37c47cc71ef8e5653134e51a29ed065812177f254132ab9c858caa3d06314

General

Target

8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe
Size

13.4MB
MD5

8eb76d6dc6f67c6743f7d4c0d6c57514
SHA1

b0e9e19362b2ca95fc4aae12878fa09b8777493d
SHA256

ace37c47cc71ef8e5653134e51a29ed065812177f254132ab9c858caa3d06314
SHA512

9e4dcd8ab97c5c9c9648fe5335166009fd3fd93a66c3f8fd5682b4135aa4c425e3be7fc8f8be304b4d52fc57011ee6cad2f7df38f99ec190038609575a753bc4
SSDEEP

49152:XcUGb2222222222222222222222222222222222222222222222222222222222f:XcU

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.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
1832	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\sihkblhj\ImagePath = "C:\\Windows\\SysWOW64\\sihkblhj\\qvfaugdf.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	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3408	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4828	qvfaugdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4828 set thread context of 3408	4828	qvfaugdf.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
2204	sc.exe
540	sc.exe
3016	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
1064	4656	WerFault.exe	83
3748	4828	WerFault.exe	97

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	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qvfaugdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4656 wrote to memory of 2004	4656	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe	87
PID 4656 wrote to memory of 2004	4656	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe	87
PID 4656 wrote to memory of 2004	4656	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe	87
PID 4656 wrote to memory of 3724	4656	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe	89
PID 4656 wrote to memory of 3724	4656	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe	89
PID 4656 wrote to memory of 3724	4656	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe	89
PID 4656 wrote to memory of 3016	4656	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe	91
PID 4656 wrote to memory of 3016	4656	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe	91
PID 4656 wrote to memory of 3016	4656	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe	91
PID 4656 wrote to memory of 2204	4656	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe	93
PID 4656 wrote to memory of 2204	4656	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe	93
PID 4656 wrote to memory of 2204	4656	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe	93
PID 4656 wrote to memory of 540	4656	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe	95
PID 4656 wrote to memory of 540	4656	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe	95
PID 4656 wrote to memory of 540	4656	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe	95
PID 4656 wrote to memory of 1832	4656	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe	98
PID 4656 wrote to memory of 1832	4656	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe	98
PID 4656 wrote to memory of 1832	4656	8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe	98
PID 4828 wrote to memory of 3408	4828	qvfaugdf.exe	105
PID 4828 wrote to memory of 3408	4828	qvfaugdf.exe	105
PID 4828 wrote to memory of 3408	4828	qvfaugdf.exe	105
PID 4828 wrote to memory of 3408	4828	qvfaugdf.exe	105
PID 4828 wrote to memory of 3408	4828	qvfaugdf.exe	105

C:\Users\Admin\AppData\Local\Temp\8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4656
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sihkblhj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qvfaugdf.exe" C:\Windows\SysWOW64\sihkblhj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create sihkblhj binPath= "C:\Windows\SysWOW64\sihkblhj\qvfaugdf.exe /d\"C:\Users\Admin\AppData\Local\Temp\8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3016
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description sihkblhj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2204
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start sihkblhj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:540
- 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:1832
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4656 -s 1036
  2⤵
  - Program crash
  PID:1064

C:\Windows\SysWOW64\sihkblhj\qvfaugdf.exe
C:\Windows\SysWOW64\sihkblhj\qvfaugdf.exe /d"C:\Users\Admin\AppData\Local\Temp\8eb76d6dc6f67c6743f7d4c0d6c57514_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4828
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3408
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4828 -s 528
  2⤵
  - Program crash
  PID:3748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4656 -ip 4656
1⤵
PID:3844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4828 -ip 4828
1⤵
PID:4180

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\qvfaugdf.exe

Filesize
14.7MB

MD5
e17e6425f9ac5a95c701316758cd17f2

SHA1
c93c1cebe67508df6b78993ae184a647194c32a2

SHA256
e7e66355c57cdc7e375d810edc1cad659b00b9f09486e353e220b771b9a28334

SHA512
bfdd0a2d9ad84bd0dd84b7272a39dca88528a7f69b12827384dbf8ff5c31d1affc9a14331f9204634018d96e61b3ac0ac6acaaea06e0f744248b746d2cea873c

Download Submit
memory/3408-15-0x0000000000350000-0x0000000000365000-memory.dmp

Filesize
84KB

Download
memory/3408-13-0x0000000000350000-0x0000000000365000-memory.dmp

Filesize
84KB

Download
memory/3408-16-0x0000000000350000-0x0000000000365000-memory.dmp

Filesize
84KB

Download
memory/4656-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4656-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4656-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4656-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4656-7-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/4656-1-0x00000000006B0000-0x00000000007B0000-memory.dmp

Filesize
1024KB

Download
memory/4828-11-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/4828-12-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/4828-18-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads