tofsee | 802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29/12/2024, 09:52

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General

Target

JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe
Size

337KB
MD5

d5dcd6548c4e5b796fe37cf726284c44
SHA1

bc323164c3dbbec11612920cdc1355d3a4cf78a9
SHA256

802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30
SHA512

d0331d94a1199df34bfb75190494a3c1d80d2dfa37b80233c1a8308e3e58e3d89a7a26b317a98f44e0eb258c7751d8bfb68a68114cc35f99ae339fa8b9e87cc3
SSDEEP

6144:+9SU8h6YplPuhSMpyXLeGpJhDRo/N6WHk2dUp:+IR1plXyyXLeG/FRY6WHk6Up

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\yseivaol = "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

pid	Process
2708	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\yseivaol\ImagePath = "C:\\Windows\\SysWOW64\\yseivaol\\rwgwkp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2808	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2840	rwgwkp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2840 set thread context of 2808	2840	rwgwkp.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2856	sc.exe
2660	sc.exe
2824	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

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	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.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	rwgwkp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2480 wrote to memory of 2256	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	31
PID 2480 wrote to memory of 2256	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	31
PID 2480 wrote to memory of 2256	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	31
PID 2480 wrote to memory of 2256	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	31
PID 2480 wrote to memory of 2040	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	33
PID 2480 wrote to memory of 2040	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	33
PID 2480 wrote to memory of 2040	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	33
PID 2480 wrote to memory of 2040	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	33
PID 2480 wrote to memory of 2856	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	35
PID 2480 wrote to memory of 2856	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	35
PID 2480 wrote to memory of 2856	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	35
PID 2480 wrote to memory of 2856	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	35
PID 2480 wrote to memory of 2660	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	37
PID 2480 wrote to memory of 2660	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	37
PID 2480 wrote to memory of 2660	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	37
PID 2480 wrote to memory of 2660	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	37
PID 2480 wrote to memory of 2824	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	39
PID 2480 wrote to memory of 2824	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	39
PID 2480 wrote to memory of 2824	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	39
PID 2480 wrote to memory of 2824	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	39
PID 2480 wrote to memory of 2708	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	42
PID 2480 wrote to memory of 2708	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	42
PID 2480 wrote to memory of 2708	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	42
PID 2480 wrote to memory of 2708	2480	JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe	42
PID 2840 wrote to memory of 2808	2840	rwgwkp.exe	44
PID 2840 wrote to memory of 2808	2840	rwgwkp.exe	44
PID 2840 wrote to memory of 2808	2840	rwgwkp.exe	44
PID 2840 wrote to memory of 2808	2840	rwgwkp.exe	44
PID 2840 wrote to memory of 2808	2840	rwgwkp.exe	44
PID 2840 wrote to memory of 2808	2840	rwgwkp.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2480
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yseivaol\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2256
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rwgwkp.exe" C:\Windows\SysWOW64\yseivaol\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2040
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yseivaol binPath= "C:\Windows\SysWOW64\yseivaol\rwgwkp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2856
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yseivaol "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2660
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yseivaol
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2824
- 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:2708

C:\Windows\SysWOW64\yseivaol\rwgwkp.exe
C:\Windows\SysWOW64\yseivaol\rwgwkp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_802c09d2ca0066f5855f8e22a023510b405dbb26ea9d6daad5a66da992016f30.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2840
- 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:2808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\rwgwkp.exe

Filesize
14.6MB

MD5
0639a72059af1134bc0d65a63317dabd

SHA1
df95d62cf436f5b93090bfae63d6bd32816beb76

SHA256
60752780ac7a00c09c8e4e8f99dab36e1d4d331540b852645eea26be46437d66

SHA512
9a24938c868327c472675469557f8ad6fadb95778ff460fbd557adf28853548ad4a0e3d22fe8989223bec6093a09218b10999bd635c42a2d80a1e218b0b2a5eb

Download Submit
memory/2480-9-0x0000000002BE0000-0x0000000002CE0000-memory.dmp

Filesize
1024KB

Download
memory/2480-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2480-1-0x0000000002BE0000-0x0000000002CE0000-memory.dmp

Filesize
1024KB

Download
memory/2480-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2480-7-0x0000000000400000-0x0000000002B4D000-memory.dmp

Filesize
39.3MB

Download
memory/2480-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2480-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2808-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2808-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2808-12-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2808-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2808-19-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2840-16-0x0000000000400000-0x0000000002B4D000-memory.dmp

Filesize
39.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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