tofsee | eb0ea2494a23b87ee6c07bd492afce2f6a0481f4a160fbb67c73fe18ed01ccf7

Analysis

max time kernel
148s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-12-2024 18:31

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General

Target

2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe
Size

12.5MB
MD5

62d58192a77785f2b84ea8d0e7e68ff8
SHA1

f154f6b8d9f8192c2a5312c940a7f5496411ed97
SHA256

eb0ea2494a23b87ee6c07bd492afce2f6a0481f4a160fbb67c73fe18ed01ccf7
SHA512

f9c27a7a5f547780b5705969135d27de39fcbfba93b992f69c6a7ec4854cd38b33022e20912c076e6b78b55f1c050edca374869db41e76fa760c4d87cf0b85cf
SSDEEP

6144:4XxZveEydmxZnXNMRaTuMUifWLKxNMMMMMMMbgb:4XzvvygxZnXxr+mxNMMMMMMMbg

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\xzkyqxut = "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
2896	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\xzkyqxut\ImagePath = "C:\\Windows\\SysWOW64\\xzkyqxut\\kfmjifbc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2892	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2616	kfmjifbc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2616 set thread context of 2892	2616	kfmjifbc.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2712	sc.exe
2848	sc.exe
2760	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kfmjifbc.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 1904	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	31
PID 1708 wrote to memory of 1904	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	31
PID 1708 wrote to memory of 1904	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	31
PID 1708 wrote to memory of 1904	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	31
PID 1708 wrote to memory of 2428	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	33
PID 1708 wrote to memory of 2428	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	33
PID 1708 wrote to memory of 2428	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	33
PID 1708 wrote to memory of 2428	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	33
PID 1708 wrote to memory of 2712	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	35
PID 1708 wrote to memory of 2712	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	35
PID 1708 wrote to memory of 2712	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	35
PID 1708 wrote to memory of 2712	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	35
PID 1708 wrote to memory of 2848	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	37
PID 1708 wrote to memory of 2848	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	37
PID 1708 wrote to memory of 2848	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	37
PID 1708 wrote to memory of 2848	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	37
PID 1708 wrote to memory of 2760	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	39
PID 1708 wrote to memory of 2760	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	39
PID 1708 wrote to memory of 2760	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	39
PID 1708 wrote to memory of 2760	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	39
PID 1708 wrote to memory of 2896	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	42
PID 1708 wrote to memory of 2896	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	42
PID 1708 wrote to memory of 2896	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	42
PID 1708 wrote to memory of 2896	1708	2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe	42
PID 2616 wrote to memory of 2892	2616	kfmjifbc.exe	44
PID 2616 wrote to memory of 2892	2616	kfmjifbc.exe	44
PID 2616 wrote to memory of 2892	2616	kfmjifbc.exe	44
PID 2616 wrote to memory of 2892	2616	kfmjifbc.exe	44
PID 2616 wrote to memory of 2892	2616	kfmjifbc.exe	44
PID 2616 wrote to memory of 2892	2616	kfmjifbc.exe	44

C:\Users\Admin\AppData\Local\Temp\2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xzkyqxut\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kfmjifbc.exe" C:\Windows\SysWOW64\xzkyqxut\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2428
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xzkyqxut binPath= "C:\Windows\SysWOW64\xzkyqxut\kfmjifbc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xzkyqxut "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xzkyqxut
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- 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:2896

C:\Windows\SysWOW64\xzkyqxut\kfmjifbc.exe
C:\Windows\SysWOW64\xzkyqxut\kfmjifbc.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-07_62d58192a77785f2b84ea8d0e7e68ff8_karagany_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2616
- 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:2892

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\kfmjifbc.exe

Filesize
13.3MB

MD5
92173f55925247680b27bfa53b5f43ef

SHA1
a7c5303e0a2f3678b86a2b8fba405c44055b03dc

SHA256
1d82da2504d33830e9d6459de45058bf90a521a47f517df95c96b3dd96b9e452

SHA512
ab9e1d53469d4a42110216f3352186b112044decdccd3f15c97472dbcbe2628a43ca759334d51a1e95d715b36eefee8967cb2dea9555a90c808617838764c187

Download Submit
memory/1708-7-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/1708-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1708-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/1708-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1708-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1708-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2616-15-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2892-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2892-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2892-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2892-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2892-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2892-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads