tofsee | f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b

General

Target

JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe
Size

243KB
MD5

634b022c0ce8ef6d058dd4585135bfd1
SHA1

28ab3d6e6e41d10b881136f4b92a891dac69b761
SHA256

f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b
SHA512

73d7f31c18acbf4fc5ef668254cf3a8c3e4817a31d014a7bbe381ef6931ca85232b0621be2ade16f7e5dd0644559ad094e9e763efe0894e8cbad403c718ffd04
SSDEEP

6144:LBZQuBT3I7M1BFd6F2zkO8mvIhA3ATIXfzX3fc8:NZ73I7WBPzkBcI5MXfzn0

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
1140	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\nnwqrfkd\ImagePath = "C:\\Windows\\SysWOW64\\nnwqrfkd\\frmjqppd.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_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe

Deletes itself 1 IoCs

pid	Process
2080	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1692	frmjqppd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1692 set thread context of 2080	1692	frmjqppd.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3896	sc.exe
396	sc.exe
3984	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
2268	3252	WerFault.exe	82
232	1692	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	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.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	frmjqppd.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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3252 wrote to memory of 1624	3252	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	83
PID 3252 wrote to memory of 1624	3252	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	83
PID 3252 wrote to memory of 1624	3252	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	83
PID 3252 wrote to memory of 5096	3252	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	85
PID 3252 wrote to memory of 5096	3252	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	85
PID 3252 wrote to memory of 5096	3252	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	85
PID 3252 wrote to memory of 3896	3252	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	87
PID 3252 wrote to memory of 3896	3252	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	87
PID 3252 wrote to memory of 3896	3252	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	87
PID 3252 wrote to memory of 396	3252	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	90
PID 3252 wrote to memory of 396	3252	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	90
PID 3252 wrote to memory of 396	3252	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	90
PID 3252 wrote to memory of 3984	3252	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	92
PID 3252 wrote to memory of 3984	3252	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	92
PID 3252 wrote to memory of 3984	3252	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	92
PID 3252 wrote to memory of 1140	3252	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	95
PID 3252 wrote to memory of 1140	3252	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	95
PID 3252 wrote to memory of 1140	3252	JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe	95
PID 1692 wrote to memory of 2080	1692	frmjqppd.exe	101
PID 1692 wrote to memory of 2080	1692	frmjqppd.exe	101
PID 1692 wrote to memory of 2080	1692	frmjqppd.exe	101
PID 1692 wrote to memory of 2080	1692	frmjqppd.exe	101
PID 1692 wrote to memory of 2080	1692	frmjqppd.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3252
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nnwqrfkd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\frmjqppd.exe" C:\Windows\SysWOW64\nnwqrfkd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5096
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nnwqrfkd binPath= "C:\Windows\SysWOW64\nnwqrfkd\frmjqppd.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3896
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nnwqrfkd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:396
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nnwqrfkd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3984
- 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:1140
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 1196
  2⤵
  - Program crash
  PID:2268

C:\Windows\SysWOW64\nnwqrfkd\frmjqppd.exe
C:\Windows\SysWOW64\nnwqrfkd\frmjqppd.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f9b47b661391df7abf158114a2972578611e5b221081404068caa304b933d83b.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1692
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2080
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1692 -s 512
  2⤵
  - Program crash
  PID:232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3252 -ip 3252
1⤵
PID:4508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1692 -ip 1692
1⤵
PID:4972

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\frmjqppd.exe

Filesize
12.9MB

MD5
8a74d5aa09d65d5d54be886510362940

SHA1
1e0dcb8de8a131540c5a516cb0936b87a333e356

SHA256
f87688635849f5d672bb7dffd901888ec345dee6ade305f017e3be774df55fea

SHA512
38549bc1bd7286d748ed76065aac9c358fccce5b6d3b6f6332a59b8f023ad33f331ee8ea35c074734c2cf7bd16ea4b89001d857005b36792fdc759b8478afaa4

Download Submit
memory/1692-13-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/1692-12-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/1692-11-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/1692-19-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2080-14-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/2080-16-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/2080-17-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/3252-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3252-2-0x0000000000880000-0x0000000000893000-memory.dmp

Filesize
76KB

Download
memory/3252-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3252-9-0x0000000000880000-0x0000000000893000-memory.dmp

Filesize
76KB

Download
memory/3252-8-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3252-1-0x0000000000680000-0x0000000000780000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads