tofsee | 6f5cadfef60d9b5e9ad27f6135b19280b0a4ffd8d07bf2f0a91314755659066b

General

Target

20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe
Size

11.3MB
MD5

857c95c3ee1e86954bfbfc7e4d871caa
SHA1

c8fcaceb46e37f229eb099064af340e1ebdda13a
SHA256

6f5cadfef60d9b5e9ad27f6135b19280b0a4ffd8d07bf2f0a91314755659066b
SHA512

ff5c7fcbfa3c4f0ad38a3dcadfd58441b2afc678a0459a876ec7a087af639bad9a02f5fd50dd07bf5b506b18ccf215017c23fd6643614ac906f2cd049793ac77
SSDEEP

12288:1Vbj7zJB99tzBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBh:1JzXd

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
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
2440	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\sojebbyi\ImagePath = "C:\\Windows\\SysWOW64\\sojebbyi\\easspedr.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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe

Deletes itself 1 IoCs

pid	Process
4340	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1804	easspedr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1804 set thread context of 4340	1804	easspedr.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
2280	sc.exe
672	sc.exe
2804	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.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	easspedr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 928 wrote to memory of 3696	928	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe	84
PID 928 wrote to memory of 3696	928	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe	84
PID 928 wrote to memory of 3696	928	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe	84
PID 928 wrote to memory of 4628	928	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe	86
PID 928 wrote to memory of 4628	928	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe	86
PID 928 wrote to memory of 4628	928	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe	86
PID 928 wrote to memory of 2280	928	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe	90
PID 928 wrote to memory of 2280	928	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe	90
PID 928 wrote to memory of 2280	928	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe	90
PID 928 wrote to memory of 672	928	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe	92
PID 928 wrote to memory of 672	928	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe	92
PID 928 wrote to memory of 672	928	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe	92
PID 928 wrote to memory of 2804	928	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe	94
PID 928 wrote to memory of 2804	928	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe	94
PID 928 wrote to memory of 2804	928	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe	94
PID 928 wrote to memory of 2440	928	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe	97
PID 928 wrote to memory of 2440	928	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe	97
PID 928 wrote to memory of 2440	928	20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe	97
PID 1804 wrote to memory of 4340	1804	easspedr.exe	100
PID 1804 wrote to memory of 4340	1804	easspedr.exe	100
PID 1804 wrote to memory of 4340	1804	easspedr.exe	100
PID 1804 wrote to memory of 4340	1804	easspedr.exe	100
PID 1804 wrote to memory of 4340	1804	easspedr.exe	100

C:\Users\Admin\AppData\Local\Temp\20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe
"C:\Users\Admin\AppData\Local\Temp\20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:928
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sojebbyi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3696
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\easspedr.exe" C:\Windows\SysWOW64\sojebbyi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4628
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create sojebbyi binPath= "C:\Windows\SysWOW64\sojebbyi\easspedr.exe /d\"C:\Users\Admin\AppData\Local\Temp\20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2280
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description sojebbyi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:672
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start sojebbyi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2804
- 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:2440

C:\Windows\SysWOW64\sojebbyi\easspedr.exe
C:\Windows\SysWOW64\sojebbyi\easspedr.exe /d"C:\Users\Admin\AppData\Local\Temp\20240921857c95c3ee1e86954bfbfc7e4d871caamafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1804
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4340

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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

Modify Registry

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
13.8MB

MD5
28c7cf3df42d52ae9e74683bfee79d5b

SHA1
52201fc709d4cd66615f2c3efa0ed2f794e295d1

SHA256
d4724d35414149f29b45cc397f29133269596b6f2a249652736db5de87aa2927

SHA512
3183295f554d398b3d840d7c50801fdab9d11a718e976cabfb7eb9daed002a45b718798607187df569f0ec0e17f6d18c886ac9724d69525c4279eca26700d6da

Download Submit
memory/928-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/928-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/928-2-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/928-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/928-8-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/928-1-0x0000000000690000-0x0000000000790000-memory.dmp

Filesize
1024KB

Download
memory/1804-13-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1804-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1804-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1804-18-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4340-16-0x00000000012A0000-0x00000000012B5000-memory.dmp

Filesize
84KB

Download
memory/4340-14-0x00000000012A0000-0x00000000012B5000-memory.dmp

Filesize
84KB

Download
memory/4340-19-0x00000000012A0000-0x00000000012B5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads