tofsee | adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce

General

Target

JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe
Size

238KB
MD5

f6a243b928d4af62b98f55da1c8c12fa
SHA1

7318559a01f03e257bfd67f424e9f9bd0ea97a96
SHA256

adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce
SHA512

2c9fdcf1b23805c80c966aa013ff4a084bbb817cb0e17e6fc12b65c0e7ad0d0a1d45ee3fdfa2c9b8da775b7b61ae5a84117e647b4dd17950979f6a62ccab7b7b
SSDEEP

6144:keTvFeYZO1fsLsR82ihb12DsIn/cEJ5RB5Rn+E:kYd/ZO18Gsv45bn+

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
4164	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\jwehgivi\ImagePath = "C:\\Windows\\SysWOW64\\jwehgivi\\krdqzmnh.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_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe

Deletes itself 1 IoCs

pid	Process
4688	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2816	krdqzmnh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2816 set thread context of 4688	2816	krdqzmnh.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
5052	sc.exe
1432	sc.exe
1888	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2076	4052	WerFault.exe	82
1164	2816	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	krdqzmnh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4052 wrote to memory of 3452	4052	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe	83
PID 4052 wrote to memory of 3452	4052	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe	83
PID 4052 wrote to memory of 3452	4052	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe	83
PID 4052 wrote to memory of 1180	4052	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe	85
PID 4052 wrote to memory of 1180	4052	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe	85
PID 4052 wrote to memory of 1180	4052	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe	85
PID 4052 wrote to memory of 5052	4052	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe	87
PID 4052 wrote to memory of 5052	4052	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe	87
PID 4052 wrote to memory of 5052	4052	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe	87
PID 4052 wrote to memory of 1432	4052	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe	89
PID 4052 wrote to memory of 1432	4052	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe	89
PID 4052 wrote to memory of 1432	4052	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe	89
PID 4052 wrote to memory of 1888	4052	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe	92
PID 4052 wrote to memory of 1888	4052	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe	92
PID 4052 wrote to memory of 1888	4052	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe	92
PID 4052 wrote to memory of 4164	4052	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe	95
PID 4052 wrote to memory of 4164	4052	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe	95
PID 4052 wrote to memory of 4164	4052	JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe	95
PID 2816 wrote to memory of 4688	2816	krdqzmnh.exe	101
PID 2816 wrote to memory of 4688	2816	krdqzmnh.exe	101
PID 2816 wrote to memory of 4688	2816	krdqzmnh.exe	101
PID 2816 wrote to memory of 4688	2816	krdqzmnh.exe	101
PID 2816 wrote to memory of 4688	2816	krdqzmnh.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jwehgivi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3452
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\krdqzmnh.exe" C:\Windows\SysWOW64\jwehgivi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1180
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jwehgivi binPath= "C:\Windows\SysWOW64\jwehgivi\krdqzmnh.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5052
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jwehgivi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1432
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jwehgivi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1888
- 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:4164
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 1148
  2⤵
  - Program crash
  PID:2076

C:\Windows\SysWOW64\jwehgivi\krdqzmnh.exe
C:\Windows\SysWOW64\jwehgivi\krdqzmnh.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_adbac4ee3fdf12d64164f2092fb355e05f5b0e797588cb52b78bf7fbe4aa55ce.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4688
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2816 -s 512
  2⤵
  - Program crash
  PID:1164

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4052 -ip 4052
1⤵
PID:596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2816 -ip 2816
1⤵
PID:3396

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\krdqzmnh.exe

Filesize
10.7MB

MD5
bb8def2dd95bc6967e7748b9449a8663

SHA1
865e1243a548364abab6dfe30a1a62d93f952677

SHA256
bcd66366b209d2e3b84ac66f6d3ffaaedfe14b99f2d01b75c36b10f8bc4ff075

SHA512
0f413bdc77be1844aa81f3b7f7878cc89026354dd76a95230d1ef1bd31437467d58ad05081042a7c90d061cfc0c8ea9d23c799a957aae54afd3c98858d35d23d

Download Submit
memory/2816-14-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2816-15-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/4052-1-0x0000000000B40000-0x0000000000C40000-memory.dmp

Filesize
1024KB

Download
memory/4052-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4052-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4052-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4052-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4052-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/4688-11-0x0000000001070000-0x0000000001085000-memory.dmp

Filesize
84KB

Download
memory/4688-13-0x0000000001070000-0x0000000001085000-memory.dmp

Filesize
84KB

Download
memory/4688-17-0x0000000001070000-0x0000000001085000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads