tofsee | 63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3

General

Target

JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe
Size

160KB
MD5

cdc9a53f7998e1e5e4e77dd418592ad6
SHA1

525c36641a284b1b5488ce8923b5f21a87ba047e
SHA256

63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3
SHA512

e31a58d9f65177ec815f0d91b46a9e854d228cfae14397255165bf248afd70e0b903bb2cb4a89193f0ee6cf8665cba8795a7aa85dfaf57de23c92cf3c5a83dd2
SSDEEP

3072:U754OjNeZE6gjfPaYUf3VF9Gtmrib4R1eWvVw8Bf:4NeZE6gLYVxR1eWdw8B

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
3376	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\rpoayazg\ImagePath = "C:\\Windows\\SysWOW64\\rpoayazg\\iojmveez.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	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe

Deletes itself 1 IoCs

pid	Process
2236	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1720	iojmveez.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1720 set thread context of 2236	1720	iojmveez.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
116	sc.exe
4520	sc.exe
1816	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
4404	2272	WerFault.exe	82
4796	1720	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	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	iojmveez.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 4264	2272	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe	83
PID 2272 wrote to memory of 4264	2272	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe	83
PID 2272 wrote to memory of 4264	2272	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe	83
PID 2272 wrote to memory of 4660	2272	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe	85
PID 2272 wrote to memory of 4660	2272	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe	85
PID 2272 wrote to memory of 4660	2272	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe	85
PID 2272 wrote to memory of 116	2272	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe	87
PID 2272 wrote to memory of 116	2272	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe	87
PID 2272 wrote to memory of 116	2272	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe	87
PID 2272 wrote to memory of 4520	2272	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe	89
PID 2272 wrote to memory of 4520	2272	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe	89
PID 2272 wrote to memory of 4520	2272	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe	89
PID 2272 wrote to memory of 1816	2272	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe	92
PID 2272 wrote to memory of 1816	2272	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe	92
PID 2272 wrote to memory of 1816	2272	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe	92
PID 1720 wrote to memory of 2236	1720	iojmveez.exe	95
PID 1720 wrote to memory of 2236	1720	iojmveez.exe	95
PID 1720 wrote to memory of 2236	1720	iojmveez.exe	95
PID 1720 wrote to memory of 2236	1720	iojmveez.exe	95
PID 1720 wrote to memory of 2236	1720	iojmveez.exe	95
PID 2272 wrote to memory of 3376	2272	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe	97
PID 2272 wrote to memory of 3376	2272	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe	97
PID 2272 wrote to memory of 3376	2272	JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rpoayazg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4264
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iojmveez.exe" C:\Windows\SysWOW64\rpoayazg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4660
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rpoayazg binPath= "C:\Windows\SysWOW64\rpoayazg\iojmveez.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rpoayazg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4520
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rpoayazg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1816
- 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:3376
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 1264
  2⤵
  - Program crash
  PID:4404

C:\Windows\SysWOW64\rpoayazg\iojmveez.exe
C:\Windows\SysWOW64\rpoayazg\iojmveez.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63c5c408d762a1b5e4fe0a4d3e0538bb3bb292fe61b986c7b6c9f7f4080cfab3.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2236
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1720 -s 528
  2⤵
  - Program crash
  PID:4796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2272 -ip 2272
1⤵
PID:2656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1720 -ip 1720
1⤵
PID:1392

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\iojmveez.exe

Filesize
13.4MB

MD5
efa50ca674e1cd28c3663b9f6223d06c

SHA1
815bd03b244ac923036789989c0a2e378c4481e6

SHA256
304c294d32db6ba73175e83efe1bfedf72ae3db41fb0dbc57c952218d1a427d0

SHA512
1cb03e23d3dd4a961f1261eb5471df6b30a57e004face62303656f2d52a5e014aa6a613581757a743e82b3a2431609d0703fd8afc994afa1a1a0421fd6ccd181

Download Submit
memory/1720-14-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1720-7-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1720-6-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1720-8-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2236-12-0x0000000000EA0000-0x0000000000EB5000-memory.dmp

Filesize
84KB

Download
memory/2236-9-0x0000000000EA0000-0x0000000000EB5000-memory.dmp

Filesize
84KB

Download
memory/2236-19-0x0000000000EA0000-0x0000000000EB5000-memory.dmp

Filesize
84KB

Download
memory/2236-20-0x0000000000EA0000-0x0000000000EB5000-memory.dmp

Filesize
84KB

Download
memory/2236-21-0x0000000000EA0000-0x0000000000EB5000-memory.dmp

Filesize
84KB

Download
memory/2272-1-0x0000000000600000-0x0000000000613000-memory.dmp

Filesize
76KB

Download
memory/2272-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2272-0-0x00000000005D0000-0x00000000005DD000-memory.dmp

Filesize
52KB

Download
memory/2272-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2272-17-0x0000000000600000-0x0000000000613000-memory.dmp

Filesize
76KB

Download
memory/2272-16-0x00000000005D0000-0x00000000005DD000-memory.dmp

Filesize
52KB

Download
memory/2272-15-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads