tofsee | e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e

General

Target

JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe
Size

285KB
MD5

5b466970f8e25d73b937aa1578dd44ba
SHA1

9bb38b02e5e6b1e0352408357ffcad753c339f12
SHA256

e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e
SHA512

536554bb9ddaa3a9ea1d5b50726efc60fd72008868716b376dc6eef3049df76e02b3cff7e52621db6d247e7e7a56f05d71515d07dfa182071e6d137b822f289b
SSDEEP

6144:SKOnV2tU9Xp8YYQTPoSEHnwuzbgwu6L7ITsqSigaTwVf:unVpiYvTPyHwunnn7s

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
4604	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\fywlwrzu\ImagePath = "C:\\Windows\\SysWOW64\\fywlwrzu\\hmwmaf.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe

Deletes itself 1 IoCs

pid	Process
3932	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3388	hmwmaf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3388 set thread context of 3932	3388	hmwmaf.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
3420	sc.exe
1548	sc.exe
3924	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
1424	2972	WerFault.exe	82
4836	3388	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hmwmaf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 4760	2972	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe	83
PID 2972 wrote to memory of 4760	2972	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe	83
PID 2972 wrote to memory of 4760	2972	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe	83
PID 2972 wrote to memory of 4740	2972	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe	85
PID 2972 wrote to memory of 4740	2972	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe	85
PID 2972 wrote to memory of 4740	2972	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe	85
PID 2972 wrote to memory of 3420	2972	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe	87
PID 2972 wrote to memory of 3420	2972	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe	87
PID 2972 wrote to memory of 3420	2972	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe	87
PID 2972 wrote to memory of 1548	2972	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe	89
PID 2972 wrote to memory of 1548	2972	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe	89
PID 2972 wrote to memory of 1548	2972	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe	89
PID 2972 wrote to memory of 3924	2972	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe	91
PID 2972 wrote to memory of 3924	2972	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe	91
PID 2972 wrote to memory of 3924	2972	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe	91
PID 2972 wrote to memory of 4604	2972	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe	94
PID 2972 wrote to memory of 4604	2972	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe	94
PID 2972 wrote to memory of 4604	2972	JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe	94
PID 3388 wrote to memory of 3932	3388	hmwmaf.exe	100
PID 3388 wrote to memory of 3932	3388	hmwmaf.exe	100
PID 3388 wrote to memory of 3932	3388	hmwmaf.exe	100
PID 3388 wrote to memory of 3932	3388	hmwmaf.exe	100
PID 3388 wrote to memory of 3932	3388	hmwmaf.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fywlwrzu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4760
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hmwmaf.exe" C:\Windows\SysWOW64\fywlwrzu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fywlwrzu binPath= "C:\Windows\SysWOW64\fywlwrzu\hmwmaf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3420
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fywlwrzu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fywlwrzu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3924
- 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:4604
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2972 -s 676
  2⤵
  - Program crash
  PID:1424

C:\Windows\SysWOW64\fywlwrzu\hmwmaf.exe
C:\Windows\SysWOW64\fywlwrzu\hmwmaf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e717b1c7b77d59586e67ced2da5e4e42280f97e1a6abd3f12dc9c671fb14b41e.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3388
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3932
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3388 -s 532
  2⤵
  - Program crash
  PID:4836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2972 -ip 2972
1⤵
PID:1984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3388 -ip 3388
1⤵
PID:1324

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\hmwmaf.exe

Filesize
9.9MB

MD5
ac6caaa49ae5190cd1b4f736da222738

SHA1
0a5b6eb30a3e4a1a47353e569bc90b0cf0662edd

SHA256
3546d09ed2353de8431da56b10a5f18724b4437a9578ec2ee58e480ed25f402d

SHA512
9aa54be18b03c8923ef582280571f63c7a0e3b7e2becb7c54637c2b66da02fcba684724578f0950ba44b153388d26ae05b1f20a1047912470901014059f0c4e9

Download Submit
memory/2972-13-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2972-1-0x0000000000610000-0x0000000000623000-memory.dmp

Filesize
76KB

Download
memory/2972-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2972-0-0x00000000005F0000-0x00000000005FD000-memory.dmp

Filesize
52KB

Download
memory/2972-14-0x00000000005F0000-0x00000000005FD000-memory.dmp

Filesize
52KB

Download
memory/2972-15-0x0000000000610000-0x0000000000623000-memory.dmp

Filesize
76KB

Download
memory/2972-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3388-7-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3388-6-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3388-8-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3388-18-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3932-12-0x0000000000370000-0x0000000000385000-memory.dmp

Filesize
84KB

Download
memory/3932-9-0x0000000000370000-0x0000000000385000-memory.dmp

Filesize
84KB

Download
memory/3932-19-0x0000000000370000-0x0000000000385000-memory.dmp

Filesize
84KB

Download
memory/3932-20-0x0000000000370000-0x0000000000385000-memory.dmp

Filesize
84KB

Download
memory/3932-21-0x0000000000370000-0x0000000000385000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads