tofsee | 635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09

General

Target

JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe
Size

235KB
MD5

84b6df0a9ab6a18d4810ca534b17d7cc
SHA1

cf534454d4527e792dedc6a59aa4c16b2f454c7f
SHA256

635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09
SHA512

570f1e03f358bd26e634eca6539cc12fc0bad75b15448f256d16c4b55bd7677cdaa02c77afd9de4e18db9fd14384ba6f41d0b61f251c098f0725c2f3d49d3c56
SSDEEP

6144:IAgL/FU4vBg9SMePSGjD6vzb7ITsqXigad:IAghUegJGj+H7R

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

mubrikych.top

oxxyfix.xyz

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
3708	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\ikqjbxah\ImagePath = "C:\\Windows\\SysWOW64\\ikqjbxah\\ydnbwrit.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe

Deletes itself 1 IoCs

pid	Process
5012	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5016	ydnbwrit.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5016 set thread context of 5012	5016	ydnbwrit.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
4808	sc.exe
2088	sc.exe
2892	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
2040	412	WerFault.exe	82
2372	5016	WerFault.exe	93

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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ydnbwrit.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 412 wrote to memory of 1176	412	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe	83
PID 412 wrote to memory of 1176	412	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe	83
PID 412 wrote to memory of 1176	412	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe	83
PID 412 wrote to memory of 2840	412	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe	85
PID 412 wrote to memory of 2840	412	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe	85
PID 412 wrote to memory of 2840	412	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe	85
PID 412 wrote to memory of 2892	412	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe	87
PID 412 wrote to memory of 2892	412	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe	87
PID 412 wrote to memory of 2892	412	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe	87
PID 412 wrote to memory of 4808	412	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe	89
PID 412 wrote to memory of 4808	412	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe	89
PID 412 wrote to memory of 4808	412	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe	89
PID 412 wrote to memory of 2088	412	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe	91
PID 412 wrote to memory of 2088	412	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe	91
PID 412 wrote to memory of 2088	412	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe	91
PID 412 wrote to memory of 3708	412	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe	94
PID 412 wrote to memory of 3708	412	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe	94
PID 412 wrote to memory of 3708	412	JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe	94
PID 5016 wrote to memory of 5012	5016	ydnbwrit.exe	100
PID 5016 wrote to memory of 5012	5016	ydnbwrit.exe	100
PID 5016 wrote to memory of 5012	5016	ydnbwrit.exe	100
PID 5016 wrote to memory of 5012	5016	ydnbwrit.exe	100
PID 5016 wrote to memory of 5012	5016	ydnbwrit.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:412
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ikqjbxah\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1176
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ydnbwrit.exe" C:\Windows\SysWOW64\ikqjbxah\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ikqjbxah binPath= "C:\Windows\SysWOW64\ikqjbxah\ydnbwrit.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2892
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ikqjbxah "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ikqjbxah
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2088
- 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:3708
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 412 -s 1248
  2⤵
  - Program crash
  PID:2040

C:\Windows\SysWOW64\ikqjbxah\ydnbwrit.exe
C:\Windows\SysWOW64\ikqjbxah\ydnbwrit.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_635c96eadf804c9514fa3c4cc93f08ccf658e32d331d7646fd1d2a2a8f80dc09.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5016
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5012
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 512
  2⤵
  - Program crash
  PID:2372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 412 -ip 412
1⤵
PID:2556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 5016 -ip 5016
1⤵
PID:4896

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\ydnbwrit.exe

Filesize
10.0MB

MD5
562c73e0ace1335b4a18cf261535c0d2

SHA1
7a79ed9336ae98e253f0ac4ce28bfaec2fde189d

SHA256
9d95232bf2f1ee6592cf195c97bbafd369e52ca227256a657616f2d69f68457b

SHA512
d96cfc37f467a2246d7e3733772c3f96cfacb1413b5e77840d986442e125a642b3d78c2ce8d7a0a4babd0acaa392011f729d050fc8c661c259969d1089ffa1e7

Download Submit
memory/412-7-0x00000000001C0000-0x00000000001CD000-memory.dmp

Filesize
52KB

Download
memory/412-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/412-1-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/412-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/412-8-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/412-0-0x00000000001C0000-0x00000000001CD000-memory.dmp

Filesize
52KB

Download
memory/412-6-0x0000000000400000-0x000000000082C000-memory.dmp

Filesize
4.2MB

Download
memory/5012-11-0x0000000000CD0000-0x0000000000CE5000-memory.dmp

Filesize
84KB

Download
memory/5012-13-0x0000000000CD0000-0x0000000000CE5000-memory.dmp

Filesize
84KB

Download
memory/5012-16-0x0000000000CD0000-0x0000000000CE5000-memory.dmp

Filesize
84KB

Download
memory/5016-14-0x0000000000400000-0x000000000082C000-memory.dmp

Filesize
4.2MB

Download
memory/5016-15-0x0000000000400000-0x000000000082C000-memory.dmp

Filesize
4.2MB

Download
memory/5016-10-0x0000000000400000-0x000000000082C000-memory.dmp

Filesize
4.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads