tofsee | dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6

General

Target

JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe
Size

316KB
MD5

6e429866ebb90b7584e2ff0b07e20940
SHA1

4f6f8aca65c4a1276424ff4689c67ded7df61da1
SHA256

dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6
SHA512

8b8cd1beda47812676b7288e254183b8084c7d4bcb02ad149a7c5ed763898b25b81e94a27f6d9b2cb9caed745ebd2bb1608ddcdf4aec8f669898f71364e9b35d
SSDEEP

6144:0PCx2eJABZX5sTWQ3J+fX/8wOeIIDLY493GLMLI2fsS:oCx2W+X5sTWQ5+fX/8wOeIIDLY495LI

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
1920	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\cqsciows\ImagePath = "C:\\Windows\\SysWOW64\\cqsciows\\afecsyhw.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	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe

Deletes itself 1 IoCs

pid	Process
4256	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2924	afecsyhw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2924 set thread context of 4256	2924	afecsyhw.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4548	sc.exe
1296	sc.exe
712	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2232	3092	WerFault.exe	81
2680	2924	WerFault.exe	92

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.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	afecsyhw.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	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3092 wrote to memory of 2616	3092	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	82
PID 3092 wrote to memory of 2616	3092	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	82
PID 3092 wrote to memory of 2616	3092	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	82
PID 3092 wrote to memory of 812	3092	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	84
PID 3092 wrote to memory of 812	3092	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	84
PID 3092 wrote to memory of 812	3092	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	84
PID 3092 wrote to memory of 712	3092	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	86
PID 3092 wrote to memory of 712	3092	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	86
PID 3092 wrote to memory of 712	3092	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	86
PID 3092 wrote to memory of 4548	3092	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	88
PID 3092 wrote to memory of 4548	3092	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	88
PID 3092 wrote to memory of 4548	3092	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	88
PID 3092 wrote to memory of 1296	3092	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	90
PID 3092 wrote to memory of 1296	3092	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	90
PID 3092 wrote to memory of 1296	3092	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	90
PID 3092 wrote to memory of 1920	3092	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	93
PID 3092 wrote to memory of 1920	3092	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	93
PID 3092 wrote to memory of 1920	3092	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	93
PID 2924 wrote to memory of 4256	2924	afecsyhw.exe	98
PID 2924 wrote to memory of 4256	2924	afecsyhw.exe	98
PID 2924 wrote to memory of 4256	2924	afecsyhw.exe	98
PID 2924 wrote to memory of 4256	2924	afecsyhw.exe	98
PID 2924 wrote to memory of 4256	2924	afecsyhw.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3092
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cqsciows\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2616
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\afecsyhw.exe" C:\Windows\SysWOW64\cqsciows\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cqsciows binPath= "C:\Windows\SysWOW64\cqsciows\afecsyhw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cqsciows "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cqsciows
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1296
- 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:1920
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3092 -s 1296
  2⤵
  - Program crash
  PID:2232

C:\Windows\SysWOW64\cqsciows\afecsyhw.exe
C:\Windows\SysWOW64\cqsciows\afecsyhw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2924
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4256
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2924 -s 512
  2⤵
  - Program crash
  PID:2680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3092 -ip 3092
1⤵
PID:1460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2924 -ip 2924
1⤵
PID:316

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\afecsyhw.exe

Filesize
12.8MB

MD5
ee608e174aa3ba22be215f224c524dbf

SHA1
2068c9c1f46281556ef79be965c821b9f89bcd8b

SHA256
c350e227486e1c265d90a5eefa030c355e80d012a1bdd4f881e4d98e34045325

SHA512
e8f82dc911bce2346f2e3202341b9c8ddc1a36d076c9dad2b0eb299be856b4c91bb4dc6872ef67d0063aa4ea77b8fcd59fe42d8fb86b153359fbb654e8367e93

Download Submit
memory/2924-15-0x0000000000400000-0x0000000002776000-memory.dmp

Filesize
35.5MB

Download
memory/3092-1-0x00000000027D0000-0x00000000028D0000-memory.dmp

Filesize
1024KB

Download
memory/3092-2-0x0000000004370000-0x0000000004383000-memory.dmp

Filesize
76KB

Download
memory/3092-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3092-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3092-8-0x0000000004370000-0x0000000004383000-memory.dmp

Filesize
76KB

Download
memory/3092-7-0x0000000000400000-0x0000000002776000-memory.dmp

Filesize
35.5MB

Download
memory/4256-11-0x0000000000DC0000-0x0000000000DD5000-memory.dmp

Filesize
84KB

Download
memory/4256-13-0x0000000000DC0000-0x0000000000DD5000-memory.dmp

Filesize
84KB

Download
memory/4256-14-0x0000000000DC0000-0x0000000000DD5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads