tofsee | a86bd033111762b870d19d8093efe3e70a4383b2167b5943c90a85a350d264b4

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-11-2024 06:22

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General

Target

99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe
Size

12.4MB
MD5

99bd790593bc23873774f48cb8b6f631
SHA1

c50de27c7e448042bfdf7b127799bc7e2938ad63
SHA256

a86bd033111762b870d19d8093efe3e70a4383b2167b5943c90a85a350d264b4
SHA512

c70e97c269ee79d43a83bde7578cfa0904812f42f61e166f99ff98ff2f641dffda01cfb7acc6be44fb2dfbfb04cc217bae749f083906030285550c5e2a44c4f7
SSDEEP

3072:iQA1TtRdQBPuEcbBNu28bMEqfCxn2kuIPe7epgDnESZ25jnE26nnipm0ul4p7fLO:iQA1BRCu93f8bMEoFkYUlUUsap8foX

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\xhqaekzt = "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
2768	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\xhqaekzt\ImagePath = "C:\\Windows\\SysWOW64\\xhqaekzt\\pernzyrd.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3004	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2620	pernzyrd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2620 set thread context of 3004	2620	pernzyrd.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
1856	sc.exe
2812	sc.exe
2504	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	99bd790593bc23873774f48cb8b6f631_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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	pernzyrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 2820	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	30
PID 2152 wrote to memory of 2820	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	30
PID 2152 wrote to memory of 2820	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	30
PID 2152 wrote to memory of 2820	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	30
PID 2152 wrote to memory of 2728	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	32
PID 2152 wrote to memory of 2728	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	32
PID 2152 wrote to memory of 2728	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	32
PID 2152 wrote to memory of 2728	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	32
PID 2152 wrote to memory of 1856	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	34
PID 2152 wrote to memory of 1856	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	34
PID 2152 wrote to memory of 1856	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	34
PID 2152 wrote to memory of 1856	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	34
PID 2152 wrote to memory of 2812	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	36
PID 2152 wrote to memory of 2812	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	36
PID 2152 wrote to memory of 2812	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	36
PID 2152 wrote to memory of 2812	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	36
PID 2152 wrote to memory of 2504	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	38
PID 2152 wrote to memory of 2504	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	38
PID 2152 wrote to memory of 2504	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	38
PID 2152 wrote to memory of 2504	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	38
PID 2152 wrote to memory of 2768	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	41
PID 2152 wrote to memory of 2768	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	41
PID 2152 wrote to memory of 2768	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	41
PID 2152 wrote to memory of 2768	2152	99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe	41
PID 2620 wrote to memory of 3004	2620	pernzyrd.exe	43
PID 2620 wrote to memory of 3004	2620	pernzyrd.exe	43
PID 2620 wrote to memory of 3004	2620	pernzyrd.exe	43
PID 2620 wrote to memory of 3004	2620	pernzyrd.exe	43
PID 2620 wrote to memory of 3004	2620	pernzyrd.exe	43
PID 2620 wrote to memory of 3004	2620	pernzyrd.exe	43

C:\Users\Admin\AppData\Local\Temp\99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xhqaekzt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pernzyrd.exe" C:\Windows\SysWOW64\xhqaekzt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2728
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xhqaekzt binPath= "C:\Windows\SysWOW64\xhqaekzt\pernzyrd.exe /d\"C:\Users\Admin\AppData\Local\Temp\99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1856
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xhqaekzt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xhqaekzt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2504
- 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:2768

C:\Windows\SysWOW64\xhqaekzt\pernzyrd.exe
C:\Windows\SysWOW64\xhqaekzt\pernzyrd.exe /d"C:\Users\Admin\AppData\Local\Temp\99bd790593bc23873774f48cb8b6f631_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2620
- 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:3004

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\pernzyrd.exe

Filesize
14.5MB

MD5
c4c699fda3168092b91a41d55b2cfa18

SHA1
04d7eddbab6b90d46e206ba9d0e1ec2ddae2b999

SHA256
29f36863c39cb714ed213439d56044b62f87f5c360fab7d7199982b51e44b006

SHA512
dafff41dc2a15ddad0c967016c1d3a9a265868b722d2a82f604f7301096b27ade2fd295a92337f374a83851a39f98db1ac4eac01a87a8af65c4ab34d36397f24

Download Submit
memory/2152-8-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2152-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2152-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2152-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2152-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2152-1-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/2620-17-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3004-11-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/3004-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3004-14-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/3004-16-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/3004-18-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads