tofsee | 162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7

General

Target

JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe
Size

243KB
MD5

3252bf56b75b465acbb31cc4dba7daa0
SHA1

bb5e8c04d3f135e529777ea59afa9733dcdb9ae1
SHA256

162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7
SHA512

622d44a2429945a5c0820581654c9eeb2b41960f6c9f560dee3f86f6599be997ef58a946e90ac2427a691b6de6f45c77d8b404b3d507276867bec18c5ba7d56e
SSDEEP

6144:XaZQFbqbPXvUCL7qa97wA5yao5ZYnuV8cKi3ZfM:qZxbPXcCLWVA57rk8Ct

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
3500	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\mgveifaf\ImagePath = "C:\\Windows\\SysWOW64\\mgveifaf\\hkdljltd.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe

Deletes itself 1 IoCs

pid	Process
3436	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2780	hkdljltd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2780 set thread context of 3436	2780	hkdljltd.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
5040	sc.exe
4896	sc.exe
4320	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
4604	4044	WerFault.exe	84
1512	2780	WerFault.exe	96

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	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hkdljltd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4044 wrote to memory of 5044	4044	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe	85
PID 4044 wrote to memory of 5044	4044	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe	85
PID 4044 wrote to memory of 5044	4044	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe	85
PID 4044 wrote to memory of 3992	4044	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe	87
PID 4044 wrote to memory of 3992	4044	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe	87
PID 4044 wrote to memory of 3992	4044	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe	87
PID 4044 wrote to memory of 4320	4044	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe	89
PID 4044 wrote to memory of 4320	4044	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe	89
PID 4044 wrote to memory of 4320	4044	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe	89
PID 4044 wrote to memory of 5040	4044	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe	92
PID 4044 wrote to memory of 5040	4044	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe	92
PID 4044 wrote to memory of 5040	4044	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe	92
PID 4044 wrote to memory of 4896	4044	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe	94
PID 4044 wrote to memory of 4896	4044	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe	94
PID 4044 wrote to memory of 4896	4044	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe	94
PID 4044 wrote to memory of 3500	4044	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe	97
PID 4044 wrote to memory of 3500	4044	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe	97
PID 4044 wrote to memory of 3500	4044	JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe	97
PID 2780 wrote to memory of 3436	2780	hkdljltd.exe	103
PID 2780 wrote to memory of 3436	2780	hkdljltd.exe	103
PID 2780 wrote to memory of 3436	2780	hkdljltd.exe	103
PID 2780 wrote to memory of 3436	2780	hkdljltd.exe	103
PID 2780 wrote to memory of 3436	2780	hkdljltd.exe	103

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4044
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mgveifaf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5044
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hkdljltd.exe" C:\Windows\SysWOW64\mgveifaf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3992
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mgveifaf binPath= "C:\Windows\SysWOW64\mgveifaf\hkdljltd.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4320
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mgveifaf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5040
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mgveifaf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4896
- 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:3500
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4044 -s 1036
  2⤵
  - Program crash
  PID:4604

C:\Windows\SysWOW64\mgveifaf\hkdljltd.exe
C:\Windows\SysWOW64\mgveifaf\hkdljltd.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_162dc8ca7cc9e517969a977e2860b6648602b6006491787d5d80001bc1518fa7.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2780
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3436
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2780 -s 560
  2⤵
  - Program crash
  PID:1512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4044 -ip 4044
1⤵
PID:3988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2780 -ip 2780
1⤵
PID:2812

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\hkdljltd.exe

Filesize
11.6MB

MD5
7f5cfdbaf80ca03b1667e337cc49350d

SHA1
fdb08d8da0bea41a5ee8bdff8c9102e0ff17f373

SHA256
2857e6f3f86a5db571bd80bba9658721d05b7536b1810390baa1e0a156424716

SHA512
c1e89c17a1faeb816f448986df1181c6c24ca1b89c0430fb140b99a3936c0f9dd1c36d90315d719553e69404edd5648f1d14a9a013b85e054b8fec7878cc541d

Download Submit
memory/2780-13-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2780-11-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2780-12-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2780-19-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3436-14-0x00000000012D0000-0x00000000012E5000-memory.dmp

Filesize
84KB

Download
memory/3436-16-0x00000000012D0000-0x00000000012E5000-memory.dmp

Filesize
84KB

Download
memory/3436-17-0x00000000012D0000-0x00000000012E5000-memory.dmp

Filesize
84KB

Download
memory/4044-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4044-2-0x00000000004B0000-0x00000000004C3000-memory.dmp

Filesize
76KB

Download
memory/4044-9-0x00000000004B0000-0x00000000004C3000-memory.dmp

Filesize
76KB

Download
memory/4044-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4044-8-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4044-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads