tofsee | ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f

General

Target

JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe
Size

239KB
MD5

fd72d95adb8b07cdc8a7dfa8a6b6131a
SHA1

4836083fc513785fb3f1515b6ac9b7a0f8c3a4d0
SHA256

ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f
SHA512

8e9d8c81f3b5a7228512048989509777e3a16f612a7d4f0551d629a8239913577e192037935239888d8c66ae72df13be7947d5e2f4eee7b6b3a82cdcbb82e725
SSDEEP

3072:gNexIXVg04czVH2c7rY/yWA1t6RzQKL00vycfCnMcK6bqBCLfvhv6f4FKPsQ:gNexwy0/zI4E/zA1WzQDMYXFi

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
4116	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\gmxhoiac\ImagePath = "C:\\Windows\\SysWOW64\\gmxhoiac\\qcjdiobj.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe

Deletes itself 1 IoCs

pid	Process
3784	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4660	qcjdiobj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4660 set thread context of 3784	4660	qcjdiobj.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
4068	sc.exe
5116	sc.exe
5048	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

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_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qcjdiobj.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4416 wrote to memory of 3948	4416	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe	83
PID 4416 wrote to memory of 3948	4416	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe	83
PID 4416 wrote to memory of 3948	4416	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe	83
PID 4416 wrote to memory of 4164	4416	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe	85
PID 4416 wrote to memory of 4164	4416	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe	85
PID 4416 wrote to memory of 4164	4416	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe	85
PID 4416 wrote to memory of 4068	4416	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe	87
PID 4416 wrote to memory of 4068	4416	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe	87
PID 4416 wrote to memory of 4068	4416	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe	87
PID 4416 wrote to memory of 5116	4416	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe	90
PID 4416 wrote to memory of 5116	4416	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe	90
PID 4416 wrote to memory of 5116	4416	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe	90
PID 4416 wrote to memory of 5048	4416	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe	92
PID 4416 wrote to memory of 5048	4416	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe	92
PID 4416 wrote to memory of 5048	4416	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe	92
PID 4416 wrote to memory of 4116	4416	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe	95
PID 4416 wrote to memory of 4116	4416	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe	95
PID 4416 wrote to memory of 4116	4416	JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe	95
PID 4660 wrote to memory of 3784	4660	qcjdiobj.exe	97
PID 4660 wrote to memory of 3784	4660	qcjdiobj.exe	97
PID 4660 wrote to memory of 3784	4660	qcjdiobj.exe	97
PID 4660 wrote to memory of 3784	4660	qcjdiobj.exe	97
PID 4660 wrote to memory of 3784	4660	qcjdiobj.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4416
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gmxhoiac\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3948
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qcjdiobj.exe" C:\Windows\SysWOW64\gmxhoiac\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4164
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gmxhoiac binPath= "C:\Windows\SysWOW64\gmxhoiac\qcjdiobj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4068
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gmxhoiac "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gmxhoiac
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5048
- 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:4116

C:\Windows\SysWOW64\gmxhoiac\qcjdiobj.exe
C:\Windows\SysWOW64\gmxhoiac\qcjdiobj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce5524b77582e31c3c35e03476b31c78ca6a197ee31fb903058f4c90ccd4106f.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4660
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3784

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\qcjdiobj.exe

Filesize
13.2MB

MD5
32c7d95db8b3808a534b695a721190f2

SHA1
e4a09a89b793497b889e8721ddbc99c477f26676

SHA256
4d5c6fab70f0fc943236283da76022c4e6a8e78ed8c1467db94bd898b6147f4f

SHA512
e6f715eadf8f2d1e5ad5a556ecc9801b25a74a976256fbe9310bb5077549a244ffe319a0e3e8ddb07a79787e8e40ce638fa3e13eeda0ac7dd59364b7f5318cab

Download Submit
memory/3784-14-0x0000000001050000-0x0000000001065000-memory.dmp

Filesize
84KB

Download
memory/3784-18-0x0000000001050000-0x0000000001065000-memory.dmp

Filesize
84KB

Download
memory/3784-16-0x0000000001050000-0x0000000001065000-memory.dmp

Filesize
84KB

Download
memory/4416-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/4416-9-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/4416-1-0x0000000000890000-0x0000000000990000-memory.dmp

Filesize
1024KB

Download
memory/4416-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4416-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4416-2-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/4660-12-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/4660-13-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/4660-17-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/4660-11-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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