tofsee | 27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0

General

Target

JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe
Size

331KB
MD5

02048a10ea697604d4afca796a0ab93b
SHA1

fe06af1d3e80afcdce458a0d7bb2ee62b1533141
SHA256

27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0
SHA512

e25d88f3a9837eaa5d7732950db48b2cf9ccacb4c72fc35165daf31a74dad799c09a29adb281ca1c995ba4a43e844275a2c6fe9fcf1f6a1d062fe9b2127f36fb
SSDEEP

6144:F7+WqgwH1pbCLYCdNyZMQsyOlimfkkJaw:F6uu1pbCL90ZMQfrUjaw

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

patmushta.info

ovicrush.cn

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
4300	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\lpbobsog\ImagePath = "C:\\Windows\\SysWOW64\\lpbobsog\\wgtblfjk.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_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe

Deletes itself 1 IoCs

pid	Process
4616	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2816	wgtblfjk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2816 set thread context of 4616	2816	wgtblfjk.exe	99

Launches sc.exe 3 IoCs

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

pid	Process
2608	sc.exe
5104	sc.exe
5080	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 2 IoCs

pid	pid_target	Process	procid_target
3396	1876	WerFault.exe	82
2684	2816	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	cmd.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	wgtblfjk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1876 wrote to memory of 3980	1876	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	83
PID 1876 wrote to memory of 3980	1876	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	83
PID 1876 wrote to memory of 3980	1876	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	83
PID 1876 wrote to memory of 3676	1876	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	85
PID 1876 wrote to memory of 3676	1876	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	85
PID 1876 wrote to memory of 3676	1876	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	85
PID 1876 wrote to memory of 2608	1876	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	87
PID 1876 wrote to memory of 2608	1876	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	87
PID 1876 wrote to memory of 2608	1876	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	87
PID 1876 wrote to memory of 5104	1876	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	89
PID 1876 wrote to memory of 5104	1876	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	89
PID 1876 wrote to memory of 5104	1876	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	89
PID 1876 wrote to memory of 5080	1876	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	92
PID 1876 wrote to memory of 5080	1876	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	92
PID 1876 wrote to memory of 5080	1876	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	92
PID 1876 wrote to memory of 4300	1876	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	95
PID 1876 wrote to memory of 4300	1876	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	95
PID 1876 wrote to memory of 4300	1876	JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe	95
PID 2816 wrote to memory of 4616	2816	wgtblfjk.exe	99
PID 2816 wrote to memory of 4616	2816	wgtblfjk.exe	99
PID 2816 wrote to memory of 4616	2816	wgtblfjk.exe	99
PID 2816 wrote to memory of 4616	2816	wgtblfjk.exe	99
PID 2816 wrote to memory of 4616	2816	wgtblfjk.exe	99

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lpbobsog\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wgtblfjk.exe" C:\Windows\SysWOW64\lpbobsog\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3676
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lpbobsog binPath= "C:\Windows\SysWOW64\lpbobsog\wgtblfjk.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2608
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lpbobsog "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5104
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lpbobsog
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5080
- 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:4300
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1876 -s 1156
  2⤵
  - Program crash
  PID:3396

C:\Windows\SysWOW64\lpbobsog\wgtblfjk.exe
C:\Windows\SysWOW64\lpbobsog\wgtblfjk.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d3fec7629071d5ce9122d2c729f5afbf1c5c0308cf44f32423ece8a6160cb0.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4616
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2816 -s 512
  2⤵
  - Program crash
  PID:2684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1876 -ip 1876
1⤵
PID:2944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2816 -ip 2816
1⤵
PID:5000

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\wgtblfjk.exe

Filesize
12.9MB

MD5
6cca157e801da9eaefb6d842699b722f

SHA1
7acb4e79862f7bd1c7b8974e7d1e7eacaaf31905

SHA256
8aeca9fab3e737a2916286e8d969db6d411d4772b7b96a4276ae5b5879317b98

SHA512
ca53ab7f85e308e7a0ca236537f5bfa657e9e6e3b4494d94c4eb0bb49b628d3147eafe87fc4287e2ebc3e4fecfb75478745c8dd6167c9e876c6aff28de32d81d

Download Submit
memory/1876-2-0x0000000002CF0000-0x0000000002D03000-memory.dmp

Filesize
76KB

Download
memory/1876-1-0x0000000002BB0000-0x0000000002CB0000-memory.dmp

Filesize
1024KB

Download
memory/1876-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1876-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1876-12-0x0000000002CF0000-0x0000000002D03000-memory.dmp

Filesize
76KB

Download
memory/1876-11-0x0000000000400000-0x0000000002B1C000-memory.dmp

Filesize
39.1MB

Download
memory/2816-10-0x0000000000400000-0x0000000002B1C000-memory.dmp

Filesize
39.1MB

Download
memory/4616-8-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download
memory/4616-14-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download
memory/4616-15-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads