tofsee | f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2

General

Target

JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe
Size

166KB
MD5

367fb0a93e9ac87417d1f5b717677492
SHA1

35e334f3b6b197124f3de2f1b75d56b886445c88
SHA256

f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2
SHA512

ed12349162e8880f5ed416c36fde94fc669bf71f816345b20d3a0e553ac8c73a47d4b196364f54cd3d059e3e2cfe2bc57420e55d4c64fa646f2ff8afc3afa230
SSDEEP

3072:LclL4ayAU13WhlasNxijKEeDG/5eaHKA/EqX/aTX:AYATHNIunzaHzM2/a

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
3436	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\hqlnpezy\ImagePath = "C:\\Windows\\SysWOW64\\hqlnpezy\\otphfiu.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe

Deletes itself 1 IoCs

pid	Process
3876	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1304	otphfiu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1304 set thread context of 3876	1304	otphfiu.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1476	sc.exe
4572	sc.exe
3304	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
4624	3680	WerFault.exe	81
4024	1304	WerFault.exe	92

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_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe
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	otphfiu.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3680 wrote to memory of 2788	3680	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	82
PID 3680 wrote to memory of 2788	3680	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	82
PID 3680 wrote to memory of 2788	3680	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	82
PID 3680 wrote to memory of 2736	3680	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	84
PID 3680 wrote to memory of 2736	3680	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	84
PID 3680 wrote to memory of 2736	3680	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	84
PID 3680 wrote to memory of 1476	3680	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	86
PID 3680 wrote to memory of 1476	3680	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	86
PID 3680 wrote to memory of 1476	3680	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	86
PID 3680 wrote to memory of 4572	3680	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	88
PID 3680 wrote to memory of 4572	3680	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	88
PID 3680 wrote to memory of 4572	3680	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	88
PID 3680 wrote to memory of 3304	3680	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	90
PID 3680 wrote to memory of 3304	3680	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	90
PID 3680 wrote to memory of 3304	3680	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	90
PID 3680 wrote to memory of 3436	3680	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	93
PID 3680 wrote to memory of 3436	3680	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	93
PID 3680 wrote to memory of 3436	3680	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	93
PID 1304 wrote to memory of 3876	1304	otphfiu.exe	98
PID 1304 wrote to memory of 3876	1304	otphfiu.exe	98
PID 1304 wrote to memory of 3876	1304	otphfiu.exe	98
PID 1304 wrote to memory of 3876	1304	otphfiu.exe	98
PID 1304 wrote to memory of 3876	1304	otphfiu.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3680
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hqlnpezy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2788
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\otphfiu.exe" C:\Windows\SysWOW64\hqlnpezy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hqlnpezy binPath= "C:\Windows\SysWOW64\hqlnpezy\otphfiu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1476
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hqlnpezy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4572
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hqlnpezy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3304
- 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:3436
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 668
  2⤵
  - Program crash
  PID:4624

C:\Windows\SysWOW64\hqlnpezy\otphfiu.exe
C:\Windows\SysWOW64\hqlnpezy\otphfiu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1304
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1304 -s 516
  2⤵
  - Program crash
  PID:4024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3680 -ip 3680
1⤵
PID:4656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1304 -ip 1304
1⤵
PID:2972

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\otphfiu.exe

Filesize
14.5MB

MD5
7d5a08c337fa1ce983a601e608245fc8

SHA1
636367749337c234503824f742c7b811b209b49c

SHA256
bfe1dbe0cdf8b826ecf7f5724e9d729f8dcf1e8541151b0679e4f2cd92b2838e

SHA512
403d3c0179226299007ab678e75237d9fd5b9399056b9ced86eb6750fa968cf49f4685078ca08c27014446fb0accdbaac1dde2f2e3d4af6487e5ecb534cf7dfd

Download Submit
memory/1304-12-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1304-19-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1304-14-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1304-11-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3680-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3680-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/3680-9-0x00000000020A0000-0x00000000020B3000-memory.dmp

Filesize
76KB

Download
memory/3680-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3680-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3680-2-0x00000000020A0000-0x00000000020B3000-memory.dmp

Filesize
76KB

Download
memory/3876-13-0x0000000000D80000-0x0000000000D95000-memory.dmp

Filesize
84KB

Download
memory/3876-16-0x0000000000D80000-0x0000000000D95000-memory.dmp

Filesize
84KB

Download
memory/3876-17-0x0000000000D80000-0x0000000000D95000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads