tofsee | 2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213

General

Target

JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe
Size

305KB
MD5

780293db2a4e08f93a62476e02d21f27
SHA1

34263f7759ed4ee598240896339cbe4cac84624a
SHA256

2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213
SHA512

ffa7f48a2dc62beb86f2bbd0e37c60a41d8dadf4222a2593bb9bb6171c5326be5008bf96d00d65cdaeeae2923d9a4c93bbc781ddfeaefe1992b1f41a94a1b65e
SSDEEP

3072:VXYXu1MVDsY2mtCnIDqMKHf5pex3ElMFvlq17hZynkHIOE4Ru5TJftDunEvhtWGE:VX9MqYtcIA/5paGMFvlq7wRRtWhZl/7

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

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
4416	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\xjvcoxmn\ImagePath = "C:\\Windows\\SysWOW64\\xjvcoxmn\\qtmusucm.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_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe

Deletes itself 1 IoCs

pid	Process
4208	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4008	qtmusucm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4008 set thread context of 4208	4008	qtmusucm.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
4572	sc.exe
4684	sc.exe
3592	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
3760	2808	WerFault.exe	82
4072	4008	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	svchost.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qtmusucm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 1352	2808	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe	83
PID 2808 wrote to memory of 1352	2808	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe	83
PID 2808 wrote to memory of 1352	2808	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe	83
PID 2808 wrote to memory of 3752	2808	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe	85
PID 2808 wrote to memory of 3752	2808	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe	85
PID 2808 wrote to memory of 3752	2808	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe	85
PID 2808 wrote to memory of 4572	2808	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe	87
PID 2808 wrote to memory of 4572	2808	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe	87
PID 2808 wrote to memory of 4572	2808	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe	87
PID 2808 wrote to memory of 4684	2808	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe	89
PID 2808 wrote to memory of 4684	2808	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe	89
PID 2808 wrote to memory of 4684	2808	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe	89
PID 2808 wrote to memory of 3592	2808	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe	92
PID 2808 wrote to memory of 3592	2808	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe	92
PID 2808 wrote to memory of 3592	2808	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe	92
PID 2808 wrote to memory of 4416	2808	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe	95
PID 2808 wrote to memory of 4416	2808	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe	95
PID 2808 wrote to memory of 4416	2808	JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe	95
PID 4008 wrote to memory of 4208	4008	qtmusucm.exe	101
PID 4008 wrote to memory of 4208	4008	qtmusucm.exe	101
PID 4008 wrote to memory of 4208	4008	qtmusucm.exe	101
PID 4008 wrote to memory of 4208	4008	qtmusucm.exe	101
PID 4008 wrote to memory of 4208	4008	qtmusucm.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xjvcoxmn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1352
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qtmusucm.exe" C:\Windows\SysWOW64\xjvcoxmn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xjvcoxmn binPath= "C:\Windows\SysWOW64\xjvcoxmn\qtmusucm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4572
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xjvcoxmn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xjvcoxmn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3592
- 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:4416
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2808 -s 1028
  2⤵
  - Program crash
  PID:3760

C:\Windows\SysWOW64\xjvcoxmn\qtmusucm.exe
C:\Windows\SysWOW64\xjvcoxmn\qtmusucm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2bea218f0d953d560a19d8aff8dfb4cd37fefe12e969982fcb031a8ef5725213.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4008
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4208
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4008 -s 516
  2⤵
  - Program crash
  PID:4072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2808 -ip 2808
1⤵
PID:1780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 4008 -ip 4008
1⤵
PID:3168

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\qtmusucm.exe

Filesize
13.0MB

MD5
35271b2881b586419756ef9ac9602a75

SHA1
16fea6ac6d3e899497ccf068d91582d065588903

SHA256
fe5574b6d15878ef0df436dc0708a3dee9a218e49764c6c697a35d03b3143ecd

SHA512
5bec7f2404fac4ef3832ad630410fdce9bf8a12516d49190d15949054cb0f6af6346644300d00a432f159f08ef0c7cb591c8fbf5b4d725bc17fc8a8a3303f89b

Download Submit
memory/2808-2-0x0000000002CC0000-0x0000000002CD3000-memory.dmp

Filesize
76KB

Download
memory/2808-1-0x0000000002E70000-0x0000000002F70000-memory.dmp

Filesize
1024KB

Download
memory/2808-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2808-9-0x0000000002CC0000-0x0000000002CD3000-memory.dmp

Filesize
76KB

Download
memory/2808-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2808-8-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download
memory/4008-15-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download
memory/4208-13-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/4208-14-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/4208-11-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads