tofsee | 745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
26/06/2024, 09:15

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General

Target
745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe
Size 101KB
Sample240626-k8cs6sxdpg
SHA256 745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9
MD5 8492363d0e0816032359dad26695b3d0
SHA1 302a9f2dd85e1b5341f4c631e0157550f7ddfe76
SHA512 386ee8d62ecf7cc5d750c8860b26512d3bc07786215c88dec5c9ac6aa9028d1985dea1bbc740da089366b8cdd51f5d6d1562ff3977854353e528b164a60ec004
SSDEEP 1536:tktR15HzEFMoW0hO2tPsdV08NCiQ1fRO+FFCDoWf2vwxyLAPSHPwEDroGB9nE:mt354HWghsw1ZJrqfzxyGuoE/oG
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tofsee evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7
lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
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
4628	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\ojoysbfc\ImagePath = "C:\\Windows\\SysWOW64\\ojoysbfc\\zttkvevx.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe

Deletes itself 1 IoCs

pid	Process
4684	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5052	zttkvevx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5052 set thread context of 4684	5052	zttkvevx.exe	106

Launches sc.exe 3 IoCs

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

pid	Process
2184	sc.exe
2936	sc.exe
3140	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1940	372	WerFault.exe	80
1040	5052	WerFault.exe	98

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 372 wrote to memory of 2988	372	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe	88
PID 372 wrote to memory of 2988	372	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe	88
PID 372 wrote to memory of 2988	372	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe	88
PID 372 wrote to memory of 3384	372	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe	90
PID 372 wrote to memory of 3384	372	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe	90
PID 372 wrote to memory of 3384	372	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe	90
PID 372 wrote to memory of 2184	372	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe	92
PID 372 wrote to memory of 2184	372	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe	92
PID 372 wrote to memory of 2184	372	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe	92
PID 372 wrote to memory of 2936	372	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe	94
PID 372 wrote to memory of 2936	372	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe	94
PID 372 wrote to memory of 2936	372	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe	94
PID 372 wrote to memory of 3140	372	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe	96
PID 372 wrote to memory of 3140	372	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe	96
PID 372 wrote to memory of 3140	372	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe	96
PID 372 wrote to memory of 4628	372	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe	99
PID 372 wrote to memory of 4628	372	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe	99
PID 372 wrote to memory of 4628	372	745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe	99
PID 5052 wrote to memory of 4684	5052	zttkvevx.exe	106
PID 5052 wrote to memory of 4684	5052	zttkvevx.exe	106
PID 5052 wrote to memory of 4684	5052	zttkvevx.exe	106
PID 5052 wrote to memory of 4684	5052	zttkvevx.exe	106
PID 5052 wrote to memory of 4684	5052	zttkvevx.exe	106

C:\Users\Admin\AppData\Local\Temp\745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:372
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ojoysbfc\
  2⤵
  PID:2988
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zttkvevx.exe" C:\Windows\SysWOW64\ojoysbfc\
  2⤵
  PID:3384
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ojoysbfc binPath= "C:\Windows\SysWOW64\ojoysbfc\zttkvevx.exe /d\"C:\Users\Admin\AppData\Local\Temp\745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2184
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ojoysbfc "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ojoysbfc
  2⤵
  - Launches sc.exe
  PID:3140
- 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
  PID:4628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 372 -s 596
  2⤵
  - Program crash
  PID:1940

C:\Windows\SysWOW64\ojoysbfc\zttkvevx.exe
C:\Windows\SysWOW64\ojoysbfc\zttkvevx.exe /d"C:\Users\Admin\AppData\Local\Temp\745bdfaca538f8ebb08584488dd61e2247e1588ad35f7f613a75194913efeac9_NeikiAnalytics.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5052
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  PID:4684
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5052 -s 276
  2⤵
  - Program crash
  PID:1040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 372 -ip 372
1⤵
PID:2672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 5052 -ip 5052
1⤵
PID:2344

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

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

zttkvevx.exe

Path C:\Users\Admin\AppData\Local\Temp\zttkvevx.exe
Size 10.9MB
SHA256 66ee478e8eb17a62c76e07fca2480e6f196ad1657baba28c9b93812bbbb472e4
MD5 985a6fcd31c55598a5d5a3b13961ef91
SHA1 e0fb8522f041433b678a88c466589cbacd3dab05
SHA512 35d1399278363243dd64f34726608aa5e5245439ba6de5c9764c879a2899de504dd779f26fe14ee297d05056839fa129ac81b5902adee33b63ab707edcee40ad
SSDEEP 1536:iktR15HzEFMoW0hO2tPsdV08NCiQ1fRO+FFCDoWf2vwxyLAPSHPwEDroGB9nE88s:Lt354HWghsw1ZJrqfzxyGuoE/oG
MD5 SHA1 SHA512 SSDEEP

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memory/372-5-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/372-12-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/372-0-0x0000000000400000-0x0000000005D65000-memory.dmp

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memory/372-4-0x0000000005DF0000-0x0000000005E03000-memory.dmp

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memory/372-7-0x0000000000400000-0x0000000005D65000-memory.dmp

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memory/372-1-0x0000000000400000-0x0000000005D65000-memory.dmp

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memory/372-10-0x0000000000400000-0x0000000005D65000-memory.dmp

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memory/372-3-0x0000000005F00000-0x0000000006000000-memory.dmp

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memory/372-11-0x0000000000400000-0x0000000005D65000-memory.dmp

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memory/4684-15-0x0000000000310000-0x0000000000325000-memory.dmp

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memory/4684-17-0x0000000000310000-0x0000000000325000-memory.dmp

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memory/4684-18-0x0000000000310000-0x0000000000325000-memory.dmp

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memory/5052-13-0x0000000000400000-0x0000000005D65000-memory.dmp

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memory/5052-19-0x0000000000400000-0x0000000005D65000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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