tofsee | fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665

General

Target

JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe
Size

238KB
MD5

f86417c2fd815b961531de373e216cb4
SHA1

c469621501cf0b9f1dda7a6fa94ecbf715c32d92
SHA256

fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665
SHA512

9a2e75bb0f18989552226483952ce036796e08f9bb591e7c6c72cefdd638d4dc6fad1036be767cc7cc5da2828880e483a3e39a30f6210290e5d9148793e2b6de
SSDEEP

6144:3SgA7fIyTlO/L/xYZen+7ITsq7igavwVf:3XA7fI2lO/L/xy79

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
1796	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\menoinzz\ImagePath = "C:\\Windows\\SysWOW64\\menoinzz\\hzryxozg.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_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe

Deletes itself 1 IoCs

pid	Process
2008	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3788	hzryxozg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3788 set thread context of 2008	3788	hzryxozg.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
1704	sc.exe
3304	sc.exe
1432	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 4 IoCs

pid	pid_target	Process	procid_target
3756	532	WerFault.exe	82
4576	532	WerFault.exe	82
4532	3788	WerFault.exe	94
2944	3788	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	hzryxozg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.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	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 532 wrote to memory of 400	532	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe	83
PID 532 wrote to memory of 400	532	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe	83
PID 532 wrote to memory of 400	532	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe	83
PID 532 wrote to memory of 264	532	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe	85
PID 532 wrote to memory of 264	532	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe	85
PID 532 wrote to memory of 264	532	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe	85
PID 532 wrote to memory of 3304	532	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe	87
PID 532 wrote to memory of 3304	532	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe	87
PID 532 wrote to memory of 3304	532	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe	87
PID 532 wrote to memory of 1432	532	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe	89
PID 532 wrote to memory of 1432	532	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe	89
PID 532 wrote to memory of 1432	532	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe	89
PID 532 wrote to memory of 1704	532	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe	91
PID 532 wrote to memory of 1704	532	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe	91
PID 532 wrote to memory of 1704	532	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe	91
PID 532 wrote to memory of 1796	532	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe	95
PID 532 wrote to memory of 1796	532	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe	95
PID 532 wrote to memory of 1796	532	JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe	95
PID 3788 wrote to memory of 2008	3788	hzryxozg.exe	103
PID 3788 wrote to memory of 2008	3788	hzryxozg.exe	103
PID 3788 wrote to memory of 2008	3788	hzryxozg.exe	103
PID 3788 wrote to memory of 2008	3788	hzryxozg.exe	103
PID 3788 wrote to memory of 2008	3788	hzryxozg.exe	103

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:532
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\menoinzz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:400
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hzryxozg.exe" C:\Windows\SysWOW64\menoinzz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:264
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create menoinzz binPath= "C:\Windows\SysWOW64\menoinzz\hzryxozg.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3304
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description menoinzz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1432
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start menoinzz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1704
- 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:1796
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 532 -s 1172
  2⤵
  - Program crash
  PID:3756
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 532 -s 1164
  2⤵
  - Program crash
  PID:4576

C:\Windows\SysWOW64\menoinzz\hzryxozg.exe
C:\Windows\SysWOW64\menoinzz\hzryxozg.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe6cad6786c9baa0def488159be9fbdb1b149503688a612f6fc2006e79abc665.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3788
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2008
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3788 -s 512
  2⤵
  - Program crash
  PID:4532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3788 -s 532
  2⤵
  - Program crash
  PID:2944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 532 -ip 532
1⤵
PID:684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 532 -ip 532
1⤵
PID:1728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3788 -ip 3788
1⤵
PID:2108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3788 -ip 3788
1⤵
PID:1668

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\hzryxozg.exe

Filesize
13.4MB

MD5
578fabe580dd3b69ca041be06290d8a6

SHA1
b59d2d1635b907d82bb49660f58f8880b33df67b

SHA256
f5a5a54cb540ffebb60c8636189b5b82cbf8a67a3827be30932571530eb1197f

SHA512
5aae95cf98de2b2d30d0c0bd4e61d257cd6ebff13c0618bed44e829363d7b768640bfdb04b0e9956749393091d5d32cea8cdc71643d89223affe5cb44e6eefc9

Download Submit
memory/532-7-0x00000000005B0000-0x00000000005BD000-memory.dmp

Filesize
52KB

Download
memory/532-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/532-1-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/532-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/532-8-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/532-0-0x00000000005B0000-0x00000000005BD000-memory.dmp

Filesize
52KB

Download
memory/532-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2008-12-0x0000000000A90000-0x0000000000AA5000-memory.dmp

Filesize
84KB

Download
memory/2008-14-0x0000000000A90000-0x0000000000AA5000-memory.dmp

Filesize
84KB

Download
memory/2008-15-0x0000000000A90000-0x0000000000AA5000-memory.dmp

Filesize
84KB

Download
memory/3788-10-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3788-11-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3788-16-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads