tofsee | 04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f

General

Target

JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe
Size

285KB
MD5

6034f6a8acb2a90178de54274fa1544a
SHA1

09328269dfc3b4b2765f1e246505f575693bcb47
SHA256

04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f
SHA512

7ead9d7cbb2358f0bba6f4f1e20da2b3d6199ae73fddf3d9f3a7c1352a4bf4ca268c175e58a7bd1fa938d8b00eef7a492999425cb02219f77e66b0c26e09ea63
SSDEEP

6144:QKFbjnHEkmOZQgxVpuzbgwu6L7ITsqSigaTwVf:DbjkMxVpunnn7s

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
748	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\erwfbpoy\ImagePath = "C:\\Windows\\SysWOW64\\erwfbpoy\\mnlvyrwh.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe

Deletes itself 1 IoCs

pid	Process
4832	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1008	mnlvyrwh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1008 set thread context of 4832	1008	mnlvyrwh.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
4800	sc.exe
1948	sc.exe
5084	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
4464	5004	WerFault.exe	82
4468	1008	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	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.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	netsh.exe
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	mnlvyrwh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 3588	5004	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe	83
PID 5004 wrote to memory of 3588	5004	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe	83
PID 5004 wrote to memory of 3588	5004	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe	83
PID 5004 wrote to memory of 2032	5004	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe	85
PID 5004 wrote to memory of 2032	5004	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe	85
PID 5004 wrote to memory of 2032	5004	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe	85
PID 5004 wrote to memory of 4800	5004	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe	87
PID 5004 wrote to memory of 4800	5004	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe	87
PID 5004 wrote to memory of 4800	5004	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe	87
PID 5004 wrote to memory of 1948	5004	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe	89
PID 5004 wrote to memory of 1948	5004	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe	89
PID 5004 wrote to memory of 1948	5004	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe	89
PID 5004 wrote to memory of 5084	5004	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe	91
PID 5004 wrote to memory of 5084	5004	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe	91
PID 5004 wrote to memory of 5084	5004	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe	91
PID 5004 wrote to memory of 748	5004	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe	94
PID 5004 wrote to memory of 748	5004	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe	94
PID 5004 wrote to memory of 748	5004	JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe	94
PID 1008 wrote to memory of 4832	1008	mnlvyrwh.exe	100
PID 1008 wrote to memory of 4832	1008	mnlvyrwh.exe	100
PID 1008 wrote to memory of 4832	1008	mnlvyrwh.exe	100
PID 1008 wrote to memory of 4832	1008	mnlvyrwh.exe	100
PID 1008 wrote to memory of 4832	1008	mnlvyrwh.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\erwfbpoy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3588
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mnlvyrwh.exe" C:\Windows\SysWOW64\erwfbpoy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2032
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create erwfbpoy binPath= "C:\Windows\SysWOW64\erwfbpoy\mnlvyrwh.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description erwfbpoy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1948
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start erwfbpoy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5084
- 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:748
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 1036
  2⤵
  - Program crash
  PID:4464

C:\Windows\SysWOW64\erwfbpoy\mnlvyrwh.exe
C:\Windows\SysWOW64\erwfbpoy\mnlvyrwh.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04ef826d7d0601ffd19f2a1fd76b6431570e6577ab67ffbbfe2f2a9305a9518f.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1008
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4832
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1008 -s 512
  2⤵
  - Program crash
  PID:4468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 5004 -ip 5004
1⤵
PID:2944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1008 -ip 1008
1⤵
PID:3208

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\mnlvyrwh.exe

Filesize
13.9MB

MD5
b0d0cbdad9b407faf865ffb1435ee1d9

SHA1
c422e3b7f800c46e6fb27a51e43731ed6067a30b

SHA256
56417afde9c49ffa2193a5ac8d4d43eb962d0f7e4eba11cf9a52f9c2dc57eb02

SHA512
bd74e794bacdace9af3f756570271b444d98adcbac7e89352116f72dd3c25a73f9721c4b759ca16df147fc47a6c3adcd9603468b08a5fedd61119e135c594d15

Download Submit
memory/1008-10-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1008-11-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1008-17-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1008-12-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4832-13-0x00000000007E0000-0x00000000007F5000-memory.dmp

Filesize
84KB

Download
memory/4832-15-0x00000000007E0000-0x00000000007F5000-memory.dmp

Filesize
84KB

Download
memory/4832-16-0x00000000007E0000-0x00000000007F5000-memory.dmp

Filesize
84KB

Download
memory/5004-7-0x0000000000530000-0x000000000053D000-memory.dmp

Filesize
52KB

Download
memory/5004-6-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/5004-8-0x0000000000540000-0x0000000000553000-memory.dmp

Filesize
76KB

Download
memory/5004-0-0x0000000000530000-0x000000000053D000-memory.dmp

Filesize
52KB

Download
memory/5004-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5004-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5004-1-0x0000000000540000-0x0000000000553000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads