tofsee | 41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a

General

Target

JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe
Size

146KB
MD5

aa26c70d082752558ebac6feb1d2763a
SHA1

bb861e45f4ae2113fd37f7d6b48f76dbff48a4a6
SHA256

41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a
SHA512

d4932632e8e2faeeada1cd6a0e4bd6b8872de89734b09c9038e9ae578ce83b7a2ce4b0016f8322a85ad79d644ba845292d3860f3afd250f569b4d8345f22f006
SSDEEP

3072:FEh6zGMpXOxTbzOqd2kXxna/QCxZ5SqfPw7z:Fo6yMpyTHpNDqfIn

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
5008	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\ljpslotf\ImagePath = "C:\\Windows\\SysWOW64\\ljpslotf\\vlllarxp.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_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe

Deletes itself 1 IoCs

pid	Process
468	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4852	vlllarxp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4852 set thread context of 468	4852	vlllarxp.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
2556	sc.exe
1964	sc.exe
3488	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

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_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.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
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	vlllarxp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 4528	1904	JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe	83
PID 1904 wrote to memory of 4528	1904	JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe	83
PID 1904 wrote to memory of 4528	1904	JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe	83
PID 1904 wrote to memory of 2040	1904	JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe	85
PID 1904 wrote to memory of 2040	1904	JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe	85
PID 1904 wrote to memory of 2040	1904	JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe	85
PID 1904 wrote to memory of 2556	1904	JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe	87
PID 1904 wrote to memory of 2556	1904	JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe	87
PID 1904 wrote to memory of 2556	1904	JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe	87
PID 1904 wrote to memory of 1964	1904	JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe	89
PID 1904 wrote to memory of 1964	1904	JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe	89
PID 1904 wrote to memory of 1964	1904	JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe	89
PID 1904 wrote to memory of 3488	1904	JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe	91
PID 1904 wrote to memory of 3488	1904	JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe	91
PID 1904 wrote to memory of 3488	1904	JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe	91
PID 1904 wrote to memory of 5008	1904	JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe	94
PID 1904 wrote to memory of 5008	1904	JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe	94
PID 1904 wrote to memory of 5008	1904	JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe	94
PID 4852 wrote to memory of 468	4852	vlllarxp.exe	98
PID 4852 wrote to memory of 468	4852	vlllarxp.exe	98
PID 4852 wrote to memory of 468	4852	vlllarxp.exe	98
PID 4852 wrote to memory of 468	4852	vlllarxp.exe	98
PID 4852 wrote to memory of 468	4852	vlllarxp.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ljpslotf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4528
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vlllarxp.exe" C:\Windows\SysWOW64\ljpslotf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2040
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ljpslotf binPath= "C:\Windows\SysWOW64\ljpslotf\vlllarxp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2556
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ljpslotf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ljpslotf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3488
- 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:5008

C:\Windows\SysWOW64\ljpslotf\vlllarxp.exe
C:\Windows\SysWOW64\ljpslotf\vlllarxp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_41c62319f5095e05f1749fc830c675ef9eca8e384b7ea019353712bcb1deb71a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4852
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:468

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\vlllarxp.exe

Filesize
10.9MB

MD5
a09d7c8267b48b3b554b30983a84e345

SHA1
2b592031998dd59939183e63cfafaef5b5f1279f

SHA256
8646c7e0ed6b941a7a2b659f5e64ecf3b4ad275bf60f7f74a79f96e9364bed09

SHA512
fb595b851e056d755e01db0fd2aeb7b6101877f63b9af888481b7db61e7a33a989a0717a6da683f393c128a3caaa40d4b86a1089a60aa05f197f88fb33caf327

Download Submit
memory/468-16-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/468-18-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/468-14-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/1904-8-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/1904-9-0x0000000000540000-0x0000000000553000-memory.dmp

Filesize
76KB

Download
memory/1904-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/1904-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1904-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1904-2-0x0000000000540000-0x0000000000553000-memory.dmp

Filesize
76KB

Download
memory/4852-11-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/4852-12-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/4852-13-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/4852-19-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads