tofsee | c8eed2f9ea3d4118cfde872489aea27c34edc9720a218cf483f76528aa2a9a87

Analysis

max time kernel
146s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-10-2024 05:10

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General

Target

7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe
Size

11.1MB
MD5

7be29c6f07a591909370c730d25e0474
SHA1

74a9d8c39bb05b732f9a2d53735f992626247355
SHA256

c8eed2f9ea3d4118cfde872489aea27c34edc9720a218cf483f76528aa2a9a87
SHA512

b0971bcb9dba67e8684e23b47f06e12f2d144fe2e21bec13fbe73265ff38476409b92415e2392fb6d003b8822ecea11a8ff6f52aaa8ae45bc9442aefbba47b77
SSDEEP

196608:i+8888888888888888888888888888888888888888888888888888888888888H:j888888888888888888888888888888g

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

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\jsglhnqw = "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
2196	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\jsglhnqw\ImagePath = "C:\\Windows\\SysWOW64\\jsglhnqw\\oavszyym.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2760	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2884	oavszyym.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2884 set thread context of 2760	2884	oavszyym.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
1872	sc.exe
2888	sc.exe
2312	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	oavszyym.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7be29c6f07a591909370c730d25e0474_JaffaCakes118.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	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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 492	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	31
PID 2364 wrote to memory of 492	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	31
PID 2364 wrote to memory of 492	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	31
PID 2364 wrote to memory of 492	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	31
PID 2364 wrote to memory of 2988	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	33
PID 2364 wrote to memory of 2988	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	33
PID 2364 wrote to memory of 2988	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	33
PID 2364 wrote to memory of 2988	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	33
PID 2364 wrote to memory of 1872	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	35
PID 2364 wrote to memory of 1872	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	35
PID 2364 wrote to memory of 1872	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	35
PID 2364 wrote to memory of 1872	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	35
PID 2364 wrote to memory of 2888	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	37
PID 2364 wrote to memory of 2888	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	37
PID 2364 wrote to memory of 2888	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	37
PID 2364 wrote to memory of 2888	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	37
PID 2364 wrote to memory of 2312	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	39
PID 2364 wrote to memory of 2312	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	39
PID 2364 wrote to memory of 2312	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	39
PID 2364 wrote to memory of 2312	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	39
PID 2364 wrote to memory of 2196	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	42
PID 2364 wrote to memory of 2196	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	42
PID 2364 wrote to memory of 2196	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	42
PID 2364 wrote to memory of 2196	2364	7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe	42
PID 2884 wrote to memory of 2760	2884	oavszyym.exe	44
PID 2884 wrote to memory of 2760	2884	oavszyym.exe	44
PID 2884 wrote to memory of 2760	2884	oavszyym.exe	44
PID 2884 wrote to memory of 2760	2884	oavszyym.exe	44
PID 2884 wrote to memory of 2760	2884	oavszyym.exe	44
PID 2884 wrote to memory of 2760	2884	oavszyym.exe	44

C:\Users\Admin\AppData\Local\Temp\7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jsglhnqw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:492
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oavszyym.exe" C:\Windows\SysWOW64\jsglhnqw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2988
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jsglhnqw binPath= "C:\Windows\SysWOW64\jsglhnqw\oavszyym.exe /d\"C:\Users\Admin\AppData\Local\Temp\7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jsglhnqw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jsglhnqw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2312
- 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:2196

C:\Windows\SysWOW64\jsglhnqw\oavszyym.exe
C:\Windows\SysWOW64\jsglhnqw\oavszyym.exe /d"C:\Users\Admin\AppData\Local\Temp\7be29c6f07a591909370c730d25e0474_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2884
- 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:2760

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\oavszyym.exe

Filesize
12.0MB

MD5
ab35b3e1695d69eaf58bbbaf72e1462c

SHA1
cf3010150cbbc8dc6ba2ede4ae12ec49258f67c9

SHA256
bd4b9ef2b6982313f0ce3dc92db1183dd24cd583ea54c730a7035397443e0bb0

SHA512
14192ee3fbf3b5c09e4e349ff86d915c1cd7a824dd86ef1bd44960f5959a82914d97294083f3c010e25c74833449c3f0c9e20ad3f78a5c79653a9b64526cfcb9

Download Submit
memory/2364-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2364-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2364-1-0x00000000004F0000-0x00000000005F0000-memory.dmp

Filesize
1024KB

Download
memory/2364-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2364-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2364-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2760-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2760-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2760-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2760-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2760-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2884-15-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads