tofsee | 1664045584a46d45955ee6a8d0d47df589837c609232653413c515fc3e4bca62

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 03:36

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General

Target

JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe
Size

11.7MB
MD5

02dc80cd9cf3cff7d95588655037c2f2
SHA1

af16e4d5e970f82047ddb1bcf79b7fea1d1883a5
SHA256

1664045584a46d45955ee6a8d0d47df589837c609232653413c515fc3e4bca62
SHA512

cd97ca0c06a2d584b1417173db00def9b70dcfec97e699648bd0fec4f6378b93915dfa2b8abc5bbe211dbcbb92992ee6337755de03c1fcc8da06763e8f5d2123
SSDEEP

49152:+xYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYD:+

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\cjzsqxcv = "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
2772	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\cjzsqxcv\ImagePath = "C:\\Windows\\SysWOW64\\cjzsqxcv\\jgrwueby.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1904	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2928	jgrwueby.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2928 set thread context of 1904	2928	jgrwueby.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2396	sc.exe
2508	sc.exe
2844	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	svchost.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jgrwueby.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2076 wrote to memory of 2088	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	30
PID 2076 wrote to memory of 2088	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	30
PID 2076 wrote to memory of 2088	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	30
PID 2076 wrote to memory of 2088	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	30
PID 2076 wrote to memory of 2320	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	32
PID 2076 wrote to memory of 2320	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	32
PID 2076 wrote to memory of 2320	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	32
PID 2076 wrote to memory of 2320	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	32
PID 2076 wrote to memory of 2396	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	34
PID 2076 wrote to memory of 2396	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	34
PID 2076 wrote to memory of 2396	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	34
PID 2076 wrote to memory of 2396	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	34
PID 2076 wrote to memory of 2508	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	36
PID 2076 wrote to memory of 2508	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	36
PID 2076 wrote to memory of 2508	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	36
PID 2076 wrote to memory of 2508	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	36
PID 2076 wrote to memory of 2844	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	39
PID 2076 wrote to memory of 2844	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	39
PID 2076 wrote to memory of 2844	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	39
PID 2076 wrote to memory of 2844	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	39
PID 2076 wrote to memory of 2772	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	42
PID 2076 wrote to memory of 2772	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	42
PID 2076 wrote to memory of 2772	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	42
PID 2076 wrote to memory of 2772	2076	JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe	42
PID 2928 wrote to memory of 1904	2928	jgrwueby.exe	44
PID 2928 wrote to memory of 1904	2928	jgrwueby.exe	44
PID 2928 wrote to memory of 1904	2928	jgrwueby.exe	44
PID 2928 wrote to memory of 1904	2928	jgrwueby.exe	44
PID 2928 wrote to memory of 1904	2928	jgrwueby.exe	44
PID 2928 wrote to memory of 1904	2928	jgrwueby.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2076
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cjzsqxcv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2088
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jgrwueby.exe" C:\Windows\SysWOW64\cjzsqxcv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2320
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cjzsqxcv binPath= "C:\Windows\SysWOW64\cjzsqxcv\jgrwueby.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2396
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cjzsqxcv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2508
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cjzsqxcv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2844
- 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:2772

C:\Windows\SysWOW64\cjzsqxcv\jgrwueby.exe
C:\Windows\SysWOW64\cjzsqxcv\jgrwueby.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_02dc80cd9cf3cff7d95588655037c2f2.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2928
- 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:1904

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\jgrwueby.exe

Filesize
10.7MB

MD5
1e8e4b99583e1641a98ac67d647db85f

SHA1
d35dd57027681c8814b234df5a3fac03fe88ae2e

SHA256
be545ba5700ba8207dda04bde73d2e65c4744f2254d672e666fd2bbc52ef832e

SHA512
0a02f00a16cf706714440ede1aa93e5298e98ffba8079580c9ef34605cf8ce7c740ed399453594adcc1b1c16d7b0ae841b5cda824d474ef7b2a43c40ff6214f5

Download Submit
memory/1904-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1904-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1904-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1904-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1904-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2076-2-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/2076-3-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/2076-8-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/2928-13-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads