tofsee | ecbc8d6bdb6d25e1d6e8083a9992b344bd8bd5c6672a26cd08cd63659b2fe122

General

Target

JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe
Size

10.5MB
MD5

ea71620aae3be1fecd9e4f8544640c7c
SHA1

bef3abbd3233227300d06374e87d757ebf9419f0
SHA256

ecbc8d6bdb6d25e1d6e8083a9992b344bd8bd5c6672a26cd08cd63659b2fe122
SHA512

1afe3dbce7270aa4dbbcf37c452d9d2ddac3e11f55553427c1bc9fdbec73c4c2f2b1e4bea52da2784222d08a6c7227037c3eb0872a234e62ee270c759cdb1f37
SSDEEP

49152:IN5555555555555555555555555555555555555555555555555555555555555H:

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
4816	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\pgmoayyj\ImagePath = "C:\\Windows\\SysWOW64\\pgmoayyj\\ohvhztvi.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe

Deletes itself 1 IoCs

pid	Process
832	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2452	ohvhztvi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2452 set thread context of 832	2452	ohvhztvi.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
5028	sc.exe
4784	sc.exe
2016	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
1680	1860	WerFault.exe	83
1272	2452	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ohvhztvi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1860 wrote to memory of 5012	1860	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe	84
PID 1860 wrote to memory of 5012	1860	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe	84
PID 1860 wrote to memory of 5012	1860	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe	84
PID 1860 wrote to memory of 944	1860	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe	86
PID 1860 wrote to memory of 944	1860	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe	86
PID 1860 wrote to memory of 944	1860	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe	86
PID 1860 wrote to memory of 5028	1860	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe	88
PID 1860 wrote to memory of 5028	1860	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe	88
PID 1860 wrote to memory of 5028	1860	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe	88
PID 1860 wrote to memory of 4784	1860	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe	90
PID 1860 wrote to memory of 4784	1860	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe	90
PID 1860 wrote to memory of 4784	1860	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe	90
PID 1860 wrote to memory of 2016	1860	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe	92
PID 1860 wrote to memory of 2016	1860	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe	92
PID 1860 wrote to memory of 2016	1860	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe	92
PID 1860 wrote to memory of 4816	1860	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe	95
PID 1860 wrote to memory of 4816	1860	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe	95
PID 1860 wrote to memory of 4816	1860	JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe	95
PID 2452 wrote to memory of 832	2452	ohvhztvi.exe	100
PID 2452 wrote to memory of 832	2452	ohvhztvi.exe	100
PID 2452 wrote to memory of 832	2452	ohvhztvi.exe	100
PID 2452 wrote to memory of 832	2452	ohvhztvi.exe	100
PID 2452 wrote to memory of 832	2452	ohvhztvi.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pgmoayyj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ohvhztvi.exe" C:\Windows\SysWOW64\pgmoayyj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pgmoayyj binPath= "C:\Windows\SysWOW64\pgmoayyj\ohvhztvi.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5028
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pgmoayyj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4784
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pgmoayyj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2016
- 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:4816
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1860 -s 596
  2⤵
  - Program crash
  PID:1680

C:\Windows\SysWOW64\pgmoayyj\ohvhztvi.exe
C:\Windows\SysWOW64\pgmoayyj\ohvhztvi.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea71620aae3be1fecd9e4f8544640c7c.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2452
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:832
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2452 -s 536
  2⤵
  - Program crash
  PID:1272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1860 -ip 1860
1⤵
PID:736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2452 -ip 2452
1⤵
PID:4312

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\ohvhztvi.exe

Filesize
11.2MB

MD5
1ed0709942f40ec6bdb7b1278dbd6e9d

SHA1
a80ab46b8c0b7464ae01d19bfb1816f2f17373ce

SHA256
e12f4b91c2032aa459faad30f305a81e1aaedab6f2e04e05e91740d714ad9c80

SHA512
f97fcfef714cab32ff89840326a57e9e6892bc4643fd94a22321d9f520c546533ecc721a4d65968d19071ad2d98c2babd9214936f8fb38545c3cb7663db7b3a0

Download Submit
memory/832-13-0x00000000010F0000-0x0000000001105000-memory.dmp

Filesize
84KB

Download
memory/832-11-0x00000000010F0000-0x0000000001105000-memory.dmp

Filesize
84KB

Download
memory/832-14-0x00000000010F0000-0x0000000001105000-memory.dmp

Filesize
84KB

Download
memory/1860-1-0x0000000002F50000-0x0000000003050000-memory.dmp

Filesize
1024KB

Download
memory/1860-2-0x0000000002F10000-0x0000000002F23000-memory.dmp

Filesize
76KB

Download
memory/1860-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1860-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1860-8-0x0000000000400000-0x0000000002DA4000-memory.dmp

Filesize
41.6MB

Download
memory/1860-9-0x0000000002F10000-0x0000000002F23000-memory.dmp

Filesize
76KB

Download
memory/2452-15-0x0000000000400000-0x0000000002DA4000-memory.dmp

Filesize
41.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads