tofsee | bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e

General

Target

JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe
Size

285KB
MD5

25c149a1f5f4a036ebb72773167bedff
SHA1

b431e0f8cc073569c13889b0a4a13a982f47573a
SHA256

bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e
SHA512

6dfb3c62eb5c2f781da664db27b4821e3fca799b3d1a09825be1ace7a7ba9290fa06d2e7cb2867b1aefc7d88547539c2580ad1d7d016e93ac753b0fe08e3f63c
SSDEEP

6144:IW+6iIKmVsp07lkCPkcPI1NSIuSYG5RG:NVTCkI1YnG+

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
4608	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\rsthmxmm\ImagePath = "C:\\Windows\\SysWOW64\\rsthmxmm\\horpqqgu.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_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe

Deletes itself 1 IoCs

pid	Process
232	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1288	horpqqgu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1288 set thread context of 232	1288	horpqqgu.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
184	sc.exe
3292	sc.exe
2368	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1368	4480	WerFault.exe	82
1556	1288	WerFault.exe	94

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	horpqqgu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.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 4480 wrote to memory of 4424	4480	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	83
PID 4480 wrote to memory of 4424	4480	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	83
PID 4480 wrote to memory of 4424	4480	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	83
PID 4480 wrote to memory of 3372	4480	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	85
PID 4480 wrote to memory of 3372	4480	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	85
PID 4480 wrote to memory of 3372	4480	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	85
PID 4480 wrote to memory of 184	4480	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	88
PID 4480 wrote to memory of 184	4480	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	88
PID 4480 wrote to memory of 184	4480	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	88
PID 4480 wrote to memory of 3292	4480	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	90
PID 4480 wrote to memory of 3292	4480	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	90
PID 4480 wrote to memory of 3292	4480	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	90
PID 4480 wrote to memory of 2368	4480	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	92
PID 4480 wrote to memory of 2368	4480	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	92
PID 4480 wrote to memory of 2368	4480	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	92
PID 4480 wrote to memory of 4608	4480	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	95
PID 4480 wrote to memory of 4608	4480	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	95
PID 4480 wrote to memory of 4608	4480	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	95
PID 1288 wrote to memory of 232	1288	horpqqgu.exe	101
PID 1288 wrote to memory of 232	1288	horpqqgu.exe	101
PID 1288 wrote to memory of 232	1288	horpqqgu.exe	101
PID 1288 wrote to memory of 232	1288	horpqqgu.exe	101
PID 1288 wrote to memory of 232	1288	horpqqgu.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4480
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rsthmxmm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4424
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\horpqqgu.exe" C:\Windows\SysWOW64\rsthmxmm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3372
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rsthmxmm binPath= "C:\Windows\SysWOW64\rsthmxmm\horpqqgu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:184
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rsthmxmm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3292
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rsthmxmm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2368
- 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:4608
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4480 -s 668
  2⤵
  - Program crash
  PID:1368

C:\Windows\SysWOW64\rsthmxmm\horpqqgu.exe
C:\Windows\SysWOW64\rsthmxmm\horpqqgu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1288
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:232
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1288 -s 528
  2⤵
  - Program crash
  PID:1556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4480 -ip 4480
1⤵
PID:1676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1288 -ip 1288
1⤵
PID:4420

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\horpqqgu.exe

Filesize
14.2MB

MD5
1e52fe56bb9843b885d2672ef4339275

SHA1
1a79ec90f1fd642c061495e0f156e5b505e933c4

SHA256
52af71a1e03686f1d204ee87fefafdbeff6eac735dd8096e4bda1ae414580641

SHA512
41d460304d1f7fc4a77f1013fdf67e86ef6756d61fde1c8bc5631aa6f62fb527d8b5c3e5e58a861489d772be4558952e23996d81f7faf26f9f26e370eb8f61ac

Download Submit
memory/232-14-0x0000000000A60000-0x0000000000A75000-memory.dmp

Filesize
84KB

Download
memory/232-17-0x0000000000A60000-0x0000000000A75000-memory.dmp

Filesize
84KB

Download
memory/232-16-0x0000000000A60000-0x0000000000A75000-memory.dmp

Filesize
84KB

Download
memory/1288-13-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1288-12-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1288-11-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1288-18-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4480-9-0x0000000002060000-0x0000000002073000-memory.dmp

Filesize
76KB

Download
memory/4480-8-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4480-1-0x0000000000460000-0x0000000000560000-memory.dmp

Filesize
1024KB

Download
memory/4480-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4480-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4480-2-0x0000000002060000-0x0000000002073000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads