tofsee | ee8d18ee89bcf8ba343824cfc5d17013a93a8138629a37fb055061daff4bea6b

Resubmissions

18-01-2025 05:50

250118-gj2jfsvkfw 10

18-01-2025 05:45

250118-gftpfavjgy 10

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-01-2025 05:50

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General

Target

2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe
Size

13.7MB
MD5

8cd2a63e98c2f43873a7b54f5de4a5ce
SHA1

a8e11d82385377a4100167a5f2eda97203a154bc
SHA256

ee8d18ee89bcf8ba343824cfc5d17013a93a8138629a37fb055061daff4bea6b
SHA512

b8c23243eb246d731d667e7fa931807221cbef7408f6d8c70522ed06acf4a8db0f1b6311b146afb5a7fde3f3455465f01a5d8e65379d0f4ef439ae59ec170e90
SSDEEP

6144:0ZXxZnMXxZX06XE1+wr1Zf/VmUL0PMMMMMMMb6:EXzMBZX0F+wrVRiMMMMMMMb

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

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\ustvwyyq = "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
3008	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\ustvwyyq\ImagePath = "C:\\Windows\\SysWOW64\\ustvwyyq\\avczyvrs.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2644	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2872	avczyvrs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2872 set thread context of 2644	2872	avczyvrs.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2804	sc.exe
2764	sc.exe
2880	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	cmd.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	avczyvrs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.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	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 2348	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	31
PID 2104 wrote to memory of 2348	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	31
PID 2104 wrote to memory of 2348	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	31
PID 2104 wrote to memory of 2348	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	31
PID 2104 wrote to memory of 2704	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	33
PID 2104 wrote to memory of 2704	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	33
PID 2104 wrote to memory of 2704	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	33
PID 2104 wrote to memory of 2704	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	33
PID 2104 wrote to memory of 2804	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	35
PID 2104 wrote to memory of 2804	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	35
PID 2104 wrote to memory of 2804	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	35
PID 2104 wrote to memory of 2804	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	35
PID 2104 wrote to memory of 2764	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	37
PID 2104 wrote to memory of 2764	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	37
PID 2104 wrote to memory of 2764	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	37
PID 2104 wrote to memory of 2764	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	37
PID 2104 wrote to memory of 2880	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	39
PID 2104 wrote to memory of 2880	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	39
PID 2104 wrote to memory of 2880	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	39
PID 2104 wrote to memory of 2880	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	39
PID 2104 wrote to memory of 3008	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	42
PID 2104 wrote to memory of 3008	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	42
PID 2104 wrote to memory of 3008	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	42
PID 2104 wrote to memory of 3008	2104	2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe	42
PID 2872 wrote to memory of 2644	2872	avczyvrs.exe	44
PID 2872 wrote to memory of 2644	2872	avczyvrs.exe	44
PID 2872 wrote to memory of 2644	2872	avczyvrs.exe	44
PID 2872 wrote to memory of 2644	2872	avczyvrs.exe	44
PID 2872 wrote to memory of 2644	2872	avczyvrs.exe	44
PID 2872 wrote to memory of 2644	2872	avczyvrs.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe sh $MOZILLA/ %SIGINT% "SIGTERM|DESTROY|SIGKILL"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ustvwyyq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2348
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\avczyvrs.exe" C:\Windows\SysWOW64\ustvwyyq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ustvwyyq binPath= "C:\Windows\SysWOW64\ustvwyyq\avczyvrs.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ustvwyyq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ustvwyyq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2880
- 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:3008

C:\Windows\SysWOW64\ustvwyyq\avczyvrs.exe
C:\Windows\SysWOW64\ustvwyyq\avczyvrs.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-18_8cd2a63e98c2f43873a7b54f5de4a5ce_karagany_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2872
- 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:2644

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\avczyvrs.exe

Filesize
14.2MB

MD5
bf627fe31f7bc0d7613dd91aed5abd0b

SHA1
80a08c3d4a3caf030f7bc3e724ca09f81f07c539

SHA256
07485c86b6ee68151c5545bc4947298a3202f70faa1163b2494d1da945033ec9

SHA512
67af0bd38bff8142a007f481a2e26b3ca6c4a96711db9e6663bb3050e80690c401e7a2fef8c58b5c1b075b33035ebcd2e8cf89736dd46395f8f346587dd6d8df

Download Submit
memory/2104-9-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/2104-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2104-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2104-7-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2104-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2104-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/2104-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2644-12-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2644-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2644-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2644-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2644-19-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2872-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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