tofsee | 93f3712dbebaafe28d0c52837e64ebdff4faf292f1a6b75abb885cb6e719753f

General

Target

8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe
Size

11.6MB
MD5

8bef47b423bc1318ad88f0d239717e26
SHA1

f6015b826634751b01f561540a034b7e8bccc46d
SHA256

93f3712dbebaafe28d0c52837e64ebdff4faf292f1a6b75abb885cb6e719753f
SHA512

5c885dd3f1228ec73330d516f35dbb352caddf0c0ebe57fc9d21324293f1fc933358940fe38e83fab480a62713c6d11d98f3bb92a82ceb65599e6260b8e919f6
SSDEEP

49152:ipWkhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhN:ipW

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\dokiennz = "0"	svchost.exe

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

Processes:

netsh.exe

pid process

2856 netsh.exe

pid	process
2856	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\dokiennz\ImagePath = "C:\\Windows\\SysWOW64\\dokiennz\\eefqlmks.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2900 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

eefqlmks.exe

pid process

2868 eefqlmks.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

eefqlmks.exe

description pid process target process

PID 2868 set thread context of 2900 2868 eefqlmks.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2756 sc.exe
1140 sc.exe
2168 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2900	svchost.exe

pid	process
2868	eefqlmks.exe

description	pid	process	target process
PID 2868 set thread context of 2900	2868	eefqlmks.exe	svchost.exe

pid	process
2756	sc.exe
1140	sc.exe
2168	sc.exe

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

Processes:

netsh.exe

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

Processes:

8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exeeefqlmks.exenetsh.exesvchost.execmd.execmd.exesc.exesc.exesc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eefqlmks.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	cmd.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

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exeeefqlmks.exe

description	pid	process	target process
PID 2508 wrote to memory of 2400	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	cmd.exe
PID 2508 wrote to memory of 2400	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	cmd.exe
PID 2508 wrote to memory of 2400	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	cmd.exe
PID 2508 wrote to memory of 2400	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	cmd.exe
PID 2508 wrote to memory of 1260	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	cmd.exe
PID 2508 wrote to memory of 1260	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	cmd.exe
PID 2508 wrote to memory of 1260	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	cmd.exe
PID 2508 wrote to memory of 1260	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	cmd.exe
PID 2508 wrote to memory of 1140	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	sc.exe
PID 2508 wrote to memory of 1140	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	sc.exe
PID 2508 wrote to memory of 1140	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	sc.exe
PID 2508 wrote to memory of 1140	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	sc.exe
PID 2508 wrote to memory of 2168	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	sc.exe
PID 2508 wrote to memory of 2168	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	sc.exe
PID 2508 wrote to memory of 2168	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	sc.exe
PID 2508 wrote to memory of 2168	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	sc.exe
PID 2508 wrote to memory of 2756	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	sc.exe
PID 2508 wrote to memory of 2756	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	sc.exe
PID 2508 wrote to memory of 2756	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	sc.exe
PID 2508 wrote to memory of 2756	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	sc.exe
PID 2508 wrote to memory of 2856	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	netsh.exe
PID 2508 wrote to memory of 2856	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	netsh.exe
PID 2508 wrote to memory of 2856	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	netsh.exe
PID 2508 wrote to memory of 2856	2508	8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe	netsh.exe
PID 2868 wrote to memory of 2900	2868	eefqlmks.exe	svchost.exe
PID 2868 wrote to memory of 2900	2868	eefqlmks.exe	svchost.exe
PID 2868 wrote to memory of 2900	2868	eefqlmks.exe	svchost.exe
PID 2868 wrote to memory of 2900	2868	eefqlmks.exe	svchost.exe
PID 2868 wrote to memory of 2900	2868	eefqlmks.exe	svchost.exe
PID 2868 wrote to memory of 2900	2868	eefqlmks.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dokiennz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2400
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eefqlmks.exe" C:\Windows\SysWOW64\dokiennz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1260
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dokiennz binPath= "C:\Windows\SysWOW64\dokiennz\eefqlmks.exe /d\"C:\Users\Admin\AppData\Local\Temp\8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dokiennz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2168
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dokiennz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2756
- 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:2856

C:\Windows\SysWOW64\dokiennz\eefqlmks.exe
C:\Windows\SysWOW64\dokiennz\eefqlmks.exe /d"C:\Users\Admin\AppData\Local\Temp\8bef47b423bc1318ad88f0d239717e26_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2900

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

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

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\eefqlmks.exe

Filesize
11.9MB

MD5
7d8a85b028aa593dff1bf12544c4d2bd

SHA1
c49450dfd3169143484afcc24f487836579d9d40

SHA256
8942293519505a5d473b8513d106f9a35d8fd18bc500d9bce2651004bec16d08

SHA512
530eb6983a9ddcf9f8222f3fddc3da1b6ca6f02579d52fef4ca48b08e34b8cc14b37f0c5f7e4d1bf51ac25dfcfa86da5ea7ca40f1d025833bdfa346d5faa350f

Download Submit
memory/2508-10-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2508-2-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/2508-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2508-12-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2508-3-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2508-0-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2508-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2868-19-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2868-8-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2900-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2900-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2900-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2900-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2900-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2900-22-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads