tofsee | 96635117bcd9bda84bffb6df899f7676737884dd0760c6c53d0676e9327c7b29

General

Target

2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe
Size

14.8MB
MD5

8241b285d6878193cb7fefa0363ae0d2
SHA1

902d787772780cd99385afc89960eb9bf21c5ebc
SHA256

96635117bcd9bda84bffb6df899f7676737884dd0760c6c53d0676e9327c7b29
SHA512

db16c3c23eefe1e8cfddbb32089063f3fc1ee869207d716197ea02efd75917fa0f174fb0a786a2e190731e567d790c42c091098bdcc70dc4dd792d9b06772079
SSDEEP

6144:04XxZnMXxZX06XE1+wr1Zf/VmUL0PMMMMMMMb6:JXzMBZX0F+wrVRiMMMMMMMb

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
2456	netsh.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe

Executes dropped EXE 1 IoCs

pid	Process
4344	xaiigeir.exe

Launches sc.exe 3 IoCs

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

pid	Process
3420	sc.exe
4392	sc.exe
652	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 1 IoCs

pid	pid_target	Process	procid_target
752	508	WerFault.exe	81

System Location Discovery: System Language Discovery 1 TTPs 7 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	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 508 wrote to memory of 3644	508	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe	91
PID 508 wrote to memory of 3644	508	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe	91
PID 508 wrote to memory of 3644	508	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe	91
PID 508 wrote to memory of 4100	508	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe	93
PID 508 wrote to memory of 4100	508	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe	93
PID 508 wrote to memory of 4100	508	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe	93
PID 508 wrote to memory of 4392	508	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe	95
PID 508 wrote to memory of 4392	508	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe	95
PID 508 wrote to memory of 4392	508	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe	95
PID 508 wrote to memory of 652	508	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe	97
PID 508 wrote to memory of 652	508	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe	97
PID 508 wrote to memory of 652	508	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe	97
PID 508 wrote to memory of 3420	508	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe	99
PID 508 wrote to memory of 3420	508	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe	99
PID 508 wrote to memory of 3420	508	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe	99
PID 508 wrote to memory of 2456	508	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe	102
PID 508 wrote to memory of 2456	508	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe	102
PID 508 wrote to memory of 2456	508	2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:508
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\akyyuxno\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xaiigeir.exe" C:\Windows\SysWOW64\akyyuxno\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4100
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create akyyuxno binPath= "C:\Windows\SysWOW64\akyyuxno\xaiigeir.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4392
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description akyyuxno "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:652
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start akyyuxno
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3420
- 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:2456
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 1040
  2⤵
  - Program crash
  PID:752

C:\Windows\SysWOW64\akyyuxno\xaiigeir.exe
C:\Windows\SysWOW64\akyyuxno\xaiigeir.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-18_8241b285d6878193cb7fefa0363ae0d2_karagany_mafia.exe"
1⤵
- Executes dropped EXE
PID:4344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 508 -ip 508
1⤵
PID:2260

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

1

T1562.004

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\xaiigeir.exe

Filesize
13.3MB

MD5
f9651f1a8e8afe64fa09361c4aaf5f0f

SHA1
2b5f43d7ff00b4689d53fb5aca922d41a2d09ebc

SHA256
bf25272126f2adafb4f634535012ce2d723f1a653cf991a09234ea69bc685e6c

SHA512
f9ec91ef70d772572ddf98802ada4aacf4bd731f44da7ce32e03a364d4fbffe78004c9d228b8e37b7f78b81a6859878e41d82084c7490df8902bd6e119b30494

Download Submit
memory/508-1-0x0000000000660000-0x0000000000760000-memory.dmp

Filesize
1024KB

Download
memory/508-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/508-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/508-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/508-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/508-7-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads