tofsee | abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71

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
22-12-2024 03:31

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General

Target

JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe
Size

355KB
MD5

88ba98960a3b30e81fb3d948b661ed84
SHA1

c8e781320a252700b28840f1ff38452a20fada80
SHA256

abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71
SHA512

f4d23150eafcfb36750a90c82f499998f01712a0e13a6fb0dc8f0ea67e5f88d6645ac3f07d8b2675afddf9a2120e6e5f7cf5f0f4f02b3da41c3e2182bc87f192
SSDEEP

6144:W0YpGCXDz6cJUetcbhENT7mLzpllRbzOt0A1Y/y/YYJoeQWai0RKcJS:WTp3Dz6cvebhENf+Lw0AY/y/Y/ePaiiZ

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\fylhopuz = "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
2340	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\fylhopuz\ImagePath = "C:\\Windows\\SysWOW64\\fylhopuz\\zcavpwgq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2824	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2916	zcavpwgq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2916 set thread context of 2824	2916	zcavpwgq.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2848	sc.exe
2084	sc.exe
1692	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	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_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	zcavpwgq.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2580 wrote to memory of 2420	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	30
PID 2580 wrote to memory of 2420	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	30
PID 2580 wrote to memory of 2420	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	30
PID 2580 wrote to memory of 2420	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	30
PID 2580 wrote to memory of 2604	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	32
PID 2580 wrote to memory of 2604	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	32
PID 2580 wrote to memory of 2604	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	32
PID 2580 wrote to memory of 2604	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	32
PID 2580 wrote to memory of 2084	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	34
PID 2580 wrote to memory of 2084	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	34
PID 2580 wrote to memory of 2084	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	34
PID 2580 wrote to memory of 2084	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	34
PID 2580 wrote to memory of 1692	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	36
PID 2580 wrote to memory of 1692	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	36
PID 2580 wrote to memory of 1692	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	36
PID 2580 wrote to memory of 1692	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	36
PID 2580 wrote to memory of 2848	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	38
PID 2580 wrote to memory of 2848	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	38
PID 2580 wrote to memory of 2848	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	38
PID 2580 wrote to memory of 2848	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	38
PID 2580 wrote to memory of 2340	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	41
PID 2580 wrote to memory of 2340	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	41
PID 2580 wrote to memory of 2340	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	41
PID 2580 wrote to memory of 2340	2580	JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe	41
PID 2916 wrote to memory of 2824	2916	zcavpwgq.exe	43
PID 2916 wrote to memory of 2824	2916	zcavpwgq.exe	43
PID 2916 wrote to memory of 2824	2916	zcavpwgq.exe	43
PID 2916 wrote to memory of 2824	2916	zcavpwgq.exe	43
PID 2916 wrote to memory of 2824	2916	zcavpwgq.exe	43
PID 2916 wrote to memory of 2824	2916	zcavpwgq.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2580
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fylhopuz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2420
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zcavpwgq.exe" C:\Windows\SysWOW64\fylhopuz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2604
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fylhopuz binPath= "C:\Windows\SysWOW64\fylhopuz\zcavpwgq.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2084
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fylhopuz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fylhopuz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2848
- 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:2340

C:\Windows\SysWOW64\fylhopuz\zcavpwgq.exe
C:\Windows\SysWOW64\fylhopuz\zcavpwgq.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abe6eaf7211e7a3ae2e7d9423fc6b1e5630553997b5db66b262b4787551a2d71.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2916
- 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:2824

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\zcavpwgq.exe

Filesize
14.3MB

MD5
19570ac5419228eb62d613ae8656dc6e

SHA1
b0e65a022ea7780a4b9de86815fa30935408b0a0

SHA256
4b3babbfb811738827a3face17a0fa028fecbe333958a40626bce3ec3960d605

SHA512
e2347cb83360d1936f8a174bcc4e35c3f40c41675cac2af26e63b9dc9df66f802213ca11602ee46dabb145ffc25302b329c1f6f9000cbcbcedde13bb9f0911b7

Download Submit
memory/2580-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2580-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2580-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2580-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2580-10-0x00000000017D0000-0x00000000018D0000-memory.dmp

Filesize
1024KB

Download
memory/2580-1-0x00000000017D0000-0x00000000018D0000-memory.dmp

Filesize
1024KB

Download
memory/2580-8-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download
memory/2824-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2824-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2916-16-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads