tofsee | 42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24/12/2024, 19:21

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General

Target

JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe
Size

240KB
MD5

ee14752b4ccb32769404996930ce3230
SHA1

09190329105e182ba82701fa0f7a731e49d4a832
SHA256

42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f
SHA512

15e5335cf214351f5ffb058fd8642018af62ed9e71f84ac42dc90d79f78755ac2d12abfc3716777ceaeb80cbc90a679cf32117741aa5e6d83e88a3a17763b264
SSDEEP

3072:NXMJhiithleXQDIQMoCrjXm0a477yPY5tT7/iuiRNOuzUlDCtut:NIsCeADtmrjX+0n/iTRUxj

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\mazbspyl = "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
2872	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\mazbspyl\ImagePath = "C:\\Windows\\SysWOW64\\mazbspyl\\gwrdxjnf.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2556	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2596	gwrdxjnf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2596 set thread context of 2556	2596	gwrdxjnf.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2836	sc.exe
2900	sc.exe
2676	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gwrdxjnf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 2240	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	30
PID 3028 wrote to memory of 2240	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	30
PID 3028 wrote to memory of 2240	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	30
PID 3028 wrote to memory of 2240	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	30
PID 3028 wrote to memory of 2708	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	32
PID 3028 wrote to memory of 2708	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	32
PID 3028 wrote to memory of 2708	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	32
PID 3028 wrote to memory of 2708	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	32
PID 3028 wrote to memory of 2836	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	34
PID 3028 wrote to memory of 2836	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	34
PID 3028 wrote to memory of 2836	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	34
PID 3028 wrote to memory of 2836	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	34
PID 3028 wrote to memory of 2900	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	36
PID 3028 wrote to memory of 2900	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	36
PID 3028 wrote to memory of 2900	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	36
PID 3028 wrote to memory of 2900	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	36
PID 3028 wrote to memory of 2676	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	38
PID 3028 wrote to memory of 2676	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	38
PID 3028 wrote to memory of 2676	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	38
PID 3028 wrote to memory of 2676	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	38
PID 3028 wrote to memory of 2872	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	41
PID 3028 wrote to memory of 2872	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	41
PID 3028 wrote to memory of 2872	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	41
PID 3028 wrote to memory of 2872	3028	JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe	41
PID 2596 wrote to memory of 2556	2596	gwrdxjnf.exe	43
PID 2596 wrote to memory of 2556	2596	gwrdxjnf.exe	43
PID 2596 wrote to memory of 2556	2596	gwrdxjnf.exe	43
PID 2596 wrote to memory of 2556	2596	gwrdxjnf.exe	43
PID 2596 wrote to memory of 2556	2596	gwrdxjnf.exe	43
PID 2596 wrote to memory of 2556	2596	gwrdxjnf.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mazbspyl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2240
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gwrdxjnf.exe" C:\Windows\SysWOW64\mazbspyl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mazbspyl binPath= "C:\Windows\SysWOW64\mazbspyl\gwrdxjnf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mazbspyl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2900
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mazbspyl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2676
- 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:2872

C:\Windows\SysWOW64\mazbspyl\gwrdxjnf.exe
C:\Windows\SysWOW64\mazbspyl\gwrdxjnf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_42c7ced62147af5b8cc31c12cf3ef7d75dddaa518bf3f2beb2c7ab5d9c5dd64f.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2596
- 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:2556

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\gwrdxjnf.exe

Filesize
14.3MB

MD5
e4159619e767b9fdc30d0a175ec9e19b

SHA1
c4363b058f05f827caaaa4f12a268e7eeddb2907

SHA256
d3b51884117a41e9003185fa9de633bc30902b3ccfc1a5d71fa1ccfac31f631a

SHA512
69c5720d0c0f9981621ae007705ca5a3bcf65c9709ca14036327046cc29349f39c5e7d5d3f42cd8bec47c1edf143e81ec157de8a31fc3c76fab94e495dd4b4b1

Download Submit
memory/2556-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2556-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2556-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2556-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2556-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2596-18-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/3028-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3028-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3028-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3028-10-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/3028-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3028-8-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/3028-1-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads