tofsee | cafcc44f7624f3ddd40ca744b82e383f4b8876ae3396f9c7212b50a69e3ef6dd

General

Target

8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe
Size

10.2MB
MD5

8deef6bb4672714d07c277047a4c5ec3
SHA1

e8fb30d3f6a4f9e98128724d68646cadab62ca14
SHA256

cafcc44f7624f3ddd40ca744b82e383f4b8876ae3396f9c7212b50a69e3ef6dd
SHA512

f451cb75849d014c8b88523ae8bbdca702efe1efd48f31129c670805f4635242a5914a34ced6f8bf0cb86a199248e858839b3106420fe2f7802e4d1ec2553c7e
SSDEEP

98304:vjDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDX:

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
432	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\olxquvhn\ImagePath = "C:\\Windows\\SysWOW64\\olxquvhn\\nlamgcnd.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	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2564	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2944	nlamgcnd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2944 set thread context of 2564	2944	nlamgcnd.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
1324	sc.exe
5056	sc.exe
5064	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
1096	1808	WerFault.exe	83
760	2944	WerFault.exe	101

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nlamgcnd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.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 1808 wrote to memory of 4712	1808	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe	87
PID 1808 wrote to memory of 4712	1808	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe	87
PID 1808 wrote to memory of 4712	1808	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe	87
PID 1808 wrote to memory of 4980	1808	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe	91
PID 1808 wrote to memory of 4980	1808	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe	91
PID 1808 wrote to memory of 4980	1808	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe	91
PID 1808 wrote to memory of 1324	1808	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe	93
PID 1808 wrote to memory of 1324	1808	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe	93
PID 1808 wrote to memory of 1324	1808	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe	93
PID 1808 wrote to memory of 5056	1808	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe	97
PID 1808 wrote to memory of 5056	1808	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe	97
PID 1808 wrote to memory of 5056	1808	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe	97
PID 1808 wrote to memory of 5064	1808	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe	99
PID 1808 wrote to memory of 5064	1808	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe	99
PID 1808 wrote to memory of 5064	1808	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe	99
PID 1808 wrote to memory of 432	1808	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe	102
PID 1808 wrote to memory of 432	1808	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe	102
PID 1808 wrote to memory of 432	1808	8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe	102
PID 2944 wrote to memory of 2564	2944	nlamgcnd.exe	107
PID 2944 wrote to memory of 2564	2944	nlamgcnd.exe	107
PID 2944 wrote to memory of 2564	2944	nlamgcnd.exe	107
PID 2944 wrote to memory of 2564	2944	nlamgcnd.exe	107
PID 2944 wrote to memory of 2564	2944	nlamgcnd.exe	107

C:\Users\Admin\AppData\Local\Temp\8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1808
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\olxquvhn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nlamgcnd.exe" C:\Windows\SysWOW64\olxquvhn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4980
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create olxquvhn binPath= "C:\Windows\SysWOW64\olxquvhn\nlamgcnd.exe /d\"C:\Users\Admin\AppData\Local\Temp\8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1324
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description olxquvhn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start olxquvhn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5064
- 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:432
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 808
  2⤵
  - Program crash
  PID:1096

C:\Windows\SysWOW64\olxquvhn\nlamgcnd.exe
C:\Windows\SysWOW64\olxquvhn\nlamgcnd.exe /d"C:\Users\Admin\AppData\Local\Temp\8deef6bb4672714d07c277047a4c5ec3_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2944
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2564
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2944 -s 512
  2⤵
  - Program crash
  PID:760

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1808 -ip 1808
1⤵
PID:3996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2944 -ip 2944
1⤵
PID:1992

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\nlamgcnd.exe

Filesize
10.2MB

MD5
8deef6bb4672714d07c277047a4c5ec3

SHA1
e8fb30d3f6a4f9e98128724d68646cadab62ca14

SHA256
cafcc44f7624f3ddd40ca744b82e383f4b8876ae3396f9c7212b50a69e3ef6dd

SHA512
f451cb75849d014c8b88523ae8bbdca702efe1efd48f31129c670805f4635242a5914a34ced6f8bf0cb86a199248e858839b3106420fe2f7802e4d1ec2553c7e

Download Submit
memory/1808-8-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/1808-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1808-2-0x0000000000740000-0x0000000000753000-memory.dmp

Filesize
76KB

Download
memory/1808-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1808-9-0x0000000000740000-0x0000000000753000-memory.dmp

Filesize
76KB

Download
memory/1808-1-0x0000000000790000-0x0000000000890000-memory.dmp

Filesize
1024KB

Download
memory/2564-14-0x00000000007D0000-0x00000000007E5000-memory.dmp

Filesize
84KB

Download
memory/2564-16-0x00000000007D0000-0x00000000007E5000-memory.dmp

Filesize
84KB

Download
memory/2564-17-0x00000000007D0000-0x00000000007E5000-memory.dmp

Filesize
84KB

Download
memory/2944-11-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2944-12-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2944-13-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2944-18-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads