tofsee | 620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412

General

Target

JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe
Size

339KB
MD5

5f299cb2641189797532b4399ab2db88
SHA1

37f78ffb3e351479344153db438b28a752a2a0bc
SHA256

620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412
SHA512

8985d918b23ae4508926c3db9ea28b7c7935ce466914154296c8cd3b7429a213af2ba90acf3a4ab0e4c130c355d7036fcaac5b3e092dcb639e04e06465f18df5
SSDEEP

6144:59Zdc9hBN4DUd7gE0RWiWRl9yMPIzPTt3kk7z:59Zdc9Hug7g7R1WRl9yMPIFn

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
5068	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\souhdxpm\ImagePath = "C:\\Windows\\SysWOW64\\souhdxpm\\hudabgsf.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe

Deletes itself 1 IoCs

pid	Process
4440	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4984	hudabgsf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4984 set thread context of 4440	4984	hudabgsf.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3148	sc.exe
3012	sc.exe
5112	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
3588	2016	WerFault.exe	82
3020	4984	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	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hudabgsf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 3476	2016	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe	83
PID 2016 wrote to memory of 3476	2016	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe	83
PID 2016 wrote to memory of 3476	2016	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe	83
PID 2016 wrote to memory of 4684	2016	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe	85
PID 2016 wrote to memory of 4684	2016	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe	85
PID 2016 wrote to memory of 4684	2016	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe	85
PID 2016 wrote to memory of 3012	2016	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe	87
PID 2016 wrote to memory of 3012	2016	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe	87
PID 2016 wrote to memory of 3012	2016	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe	87
PID 2016 wrote to memory of 5112	2016	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe	90
PID 2016 wrote to memory of 5112	2016	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe	90
PID 2016 wrote to memory of 5112	2016	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe	90
PID 2016 wrote to memory of 3148	2016	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe	92
PID 2016 wrote to memory of 3148	2016	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe	92
PID 2016 wrote to memory of 3148	2016	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe	92
PID 2016 wrote to memory of 5068	2016	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe	95
PID 2016 wrote to memory of 5068	2016	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe	95
PID 2016 wrote to memory of 5068	2016	JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe	95
PID 4984 wrote to memory of 4440	4984	hudabgsf.exe	101
PID 4984 wrote to memory of 4440	4984	hudabgsf.exe	101
PID 4984 wrote to memory of 4440	4984	hudabgsf.exe	101
PID 4984 wrote to memory of 4440	4984	hudabgsf.exe	101
PID 4984 wrote to memory of 4440	4984	hudabgsf.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\souhdxpm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3476
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hudabgsf.exe" C:\Windows\SysWOW64\souhdxpm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create souhdxpm binPath= "C:\Windows\SysWOW64\souhdxpm\hudabgsf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description souhdxpm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5112
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start souhdxpm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3148
- 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:5068
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 660
  2⤵
  - Program crash
  PID:3588

C:\Windows\SysWOW64\souhdxpm\hudabgsf.exe
C:\Windows\SysWOW64\souhdxpm\hudabgsf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_620949d6514c4f73ee8767cbc20ad26b6ca25cc78dc41f4a30a3e987b5c19412.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4984
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4440
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4984 -s 516
  2⤵
  - Program crash
  PID:3020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2016 -ip 2016
1⤵
PID:3032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4984 -ip 4984
1⤵
PID:4704

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\hudabgsf.exe

Filesize
13.0MB

MD5
c60e64de7d7d0bd093c405aee239b4df

SHA1
a470aaba641bef160c87b6ac7fbb966ebd5de819

SHA256
9107d60ce5418dd0ade05d150978b661eb630669716ed9a6dad94dca0b071140

SHA512
466596331f01a01db87d241db6ea75473db27dfc194b6e0a6684a2dde0e42cb37f7f2c97b63a6ad61d4e635b82a4634db302c1312499420ed4f9c98a4a8cd7ce

Download Submit
memory/2016-1-0x0000000000C20000-0x0000000000D20000-memory.dmp

Filesize
1024KB

Download
memory/2016-2-0x0000000000BA0000-0x0000000000BB3000-memory.dmp

Filesize
76KB

Download
memory/2016-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2016-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2016-7-0x0000000000400000-0x00000000008F8000-memory.dmp

Filesize
5.0MB

Download
memory/2016-8-0x0000000000BA0000-0x0000000000BB3000-memory.dmp

Filesize
76KB

Download
memory/4440-11-0x0000000000830000-0x0000000000845000-memory.dmp

Filesize
84KB

Download
memory/4440-13-0x0000000000830000-0x0000000000845000-memory.dmp

Filesize
84KB

Download
memory/4440-14-0x0000000000830000-0x0000000000845000-memory.dmp

Filesize
84KB

Download
memory/4984-15-0x0000000000400000-0x00000000008F8000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads