tofsee | ef0cf9c3a7416b9a5547706530960398aa2bc67a2800813458a34680567efe03

Analysis

max time kernel
148s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06/11/2024, 19:02

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General

Target
2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe
Size 10.0MB
Sample241106-xpvabswfkn
SHA256 ef0cf9c3a7416b9a5547706530960398aa2bc67a2800813458a34680567efe03
MD5 935e2c30c169112205d10b25c338cbc1
SHA1 a0cd4f34ed0dbb5d4eb4758f65fab7ae1a0e2ebe
SHA512 dc6787fc71daa25628ebb4c956fb4ab90dc9a83d31a1ff8b1526b8300803fbb7852c59383acb5050ce346299b0dbc9719f706fe588f8d62aef811e4bae94eb30
SSDEEP 49152:QVdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGu:QVdrl/9zG
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tofsee discovery 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
Tofsee family
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
724	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\vetdutes\ImagePath = "C:\\Windows\\SysWOW64\\vetdutes\\hbdauqaf.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe

Deletes itself 1 IoCs

pid	Process
1228	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2100	hbdauqaf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2100 set thread context of 1228	2100	hbdauqaf.exe	109

Launches sc.exe 3 IoCs

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

pid	Process
2076	sc.exe
3208	sc.exe
1032	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
4552	5004	WerFault.exe	86
4376	2100	WerFault.exe	102

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	hbdauqaf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 3560	5004	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe	88
PID 5004 wrote to memory of 3560	5004	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe	88
PID 5004 wrote to memory of 3560	5004	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe	88
PID 5004 wrote to memory of 5056	5004	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe	92
PID 5004 wrote to memory of 5056	5004	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe	92
PID 5004 wrote to memory of 5056	5004	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe	92
PID 5004 wrote to memory of 2076	5004	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe	94
PID 5004 wrote to memory of 2076	5004	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe	94
PID 5004 wrote to memory of 2076	5004	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe	94
PID 5004 wrote to memory of 3208	5004	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe	98
PID 5004 wrote to memory of 3208	5004	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe	98
PID 5004 wrote to memory of 3208	5004	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe	98
PID 5004 wrote to memory of 1032	5004	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe	100
PID 5004 wrote to memory of 1032	5004	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe	100
PID 5004 wrote to memory of 1032	5004	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe	100
PID 5004 wrote to memory of 724	5004	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe	103
PID 5004 wrote to memory of 724	5004	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe	103
PID 5004 wrote to memory of 724	5004	2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe	103
PID 2100 wrote to memory of 1228	2100	hbdauqaf.exe	109
PID 2100 wrote to memory of 1228	2100	hbdauqaf.exe	109
PID 2100 wrote to memory of 1228	2100	hbdauqaf.exe	109
PID 2100 wrote to memory of 1228	2100	hbdauqaf.exe	109
PID 2100 wrote to memory of 1228	2100	hbdauqaf.exe	109

C:\Users\Admin\AppData\Local\Temp\2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vetdutes\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3560
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hbdauqaf.exe" C:\Windows\SysWOW64\vetdutes\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vetdutes binPath= "C:\Windows\SysWOW64\vetdutes\hbdauqaf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2076
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vetdutes "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3208
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vetdutes
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1032
- 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:724
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 652
  2⤵
  - Program crash
  PID:4552

C:\Windows\SysWOW64\vetdutes\hbdauqaf.exe
C:\Windows\SysWOW64\vetdutes\hbdauqaf.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-06_935e2c30c169112205d10b25c338cbc1_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1228
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2100 -s 272
  2⤵
  - Program crash
  PID:4376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 5004 -ip 5004
1⤵
PID:2696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 196 -p 2100 -ip 2100
1⤵
PID:2676

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

hbdauqaf.exe

Path C:\Users\Admin\AppData\Local\Temp\hbdauqaf.exe
Size 12.6MB
SHA256 f4802d6a464285927ad4873ac7e0f7ce80b7467755bca9ff9af05f497bca9d9f
MD5 df3a710ca93dcc28d4f0800a204c3996
SHA1 1cc294d7dbca19b0c67a2c01a28bb6c2ecdd1dfd
SHA512 5f4298458eae2c65da5e7e716bc89dbb252e646f97c1dd32b9b4ef5da2ecab7b215ff485a694344c16f76c4ed43cfe535c0262dceb082288ef13e49354d0bdaf
SSDEEP 49152:KVdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG/:KVdrl/9zG
MD5 SHA1 SHA512 SSDEEP

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memory/1228-14-0x0000000000FB0000-0x0000000000FC5000-memory.dmp

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memory/1228-17-0x0000000000FB0000-0x0000000000FC5000-memory.dmp

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memory/1228-16-0x0000000000FB0000-0x0000000000FC5000-memory.dmp

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memory/2100-13-0x0000000000400000-0x0000000000518000-memory.dmp

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memory/2100-11-0x0000000000400000-0x0000000000518000-memory.dmp

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memory/2100-12-0x0000000000400000-0x0000000000518000-memory.dmp

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memory/2100-19-0x0000000000400000-0x0000000000518000-memory.dmp

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memory/5004-8-0x0000000000670000-0x0000000000683000-memory.dmp

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memory/5004-7-0x0000000000400000-0x0000000000518000-memory.dmp

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memory/5004-1-0x00000000007E0000-0x00000000008E0000-memory.dmp

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memory/5004-9-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/5004-3-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/5004-2-0x0000000000670000-0x0000000000683000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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