tofsee | 12b0178d8d6ad98ac457790240a3c04c3b74d3b47876ab525cfcf8c0cfcfd930

General

Target

2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe
Size

11.8MB
MD5

24bd85cfd4f367380324d69d46805978
SHA1

9ae1e14cd3733e22bf9be7f9fb8dc06ec4425abc
SHA256

12b0178d8d6ad98ac457790240a3c04c3b74d3b47876ab525cfcf8c0cfcfd930
SHA512

473902b4699dbc65d9d501f2cf3241223f039116a74dd66ea9203d4330f876956c6aa70fbaf8a00d0190e28c32dd4a00e37f0da952b6d55d0a07271d2e17b289
SSDEEP

3072:ULBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:ROMdRQr7OB0ypmMXnl8XEPM3noSWOC

Score

10^/10

tofsee defense_evasion discovery 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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
5048	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\alsmjej\ImagePath = "C:\\Windows\\SysWOW64\\alsmjej\\pgomwrym.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe

Deletes itself 1 IoCs

pid	Process
3112	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4372	pgomwrym.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4372 set thread context of 3112	4372	pgomwrym.exe	106

Launches sc.exe 3 IoCs

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

pid	Process
3204	sc.exe
3076	sc.exe
2448	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
1112	1188	WerFault.exe	82
3184	4372	WerFault.exe	95

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pgomwrym.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-25_24bd85cfd4f367380324d69d46805978_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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1188 wrote to memory of 2216	1188	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	83
PID 1188 wrote to memory of 2216	1188	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	83
PID 1188 wrote to memory of 2216	1188	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	83
PID 1188 wrote to memory of 3520	1188	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	85
PID 1188 wrote to memory of 3520	1188	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	85
PID 1188 wrote to memory of 3520	1188	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	85
PID 1188 wrote to memory of 3204	1188	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	87
PID 1188 wrote to memory of 3204	1188	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	87
PID 1188 wrote to memory of 3204	1188	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	87
PID 1188 wrote to memory of 3076	1188	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	91
PID 1188 wrote to memory of 3076	1188	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	91
PID 1188 wrote to memory of 3076	1188	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	91
PID 1188 wrote to memory of 2448	1188	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	93
PID 1188 wrote to memory of 2448	1188	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	93
PID 1188 wrote to memory of 2448	1188	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	93
PID 1188 wrote to memory of 5048	1188	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	99
PID 1188 wrote to memory of 5048	1188	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	99
PID 1188 wrote to memory of 5048	1188	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	99
PID 4372 wrote to memory of 3112	4372	pgomwrym.exe	106
PID 4372 wrote to memory of 3112	4372	pgomwrym.exe	106
PID 4372 wrote to memory of 3112	4372	pgomwrym.exe	106
PID 4372 wrote to memory of 3112	4372	pgomwrym.exe	106
PID 4372 wrote to memory of 3112	4372	pgomwrym.exe	106

C:\Users\Admin\AppData\Local\Temp\2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\alsmjej\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2216
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pgomwrym.exe" C:\Windows\SysWOW64\alsmjej\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3520
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create alsmjej binPath= "C:\Windows\SysWOW64\alsmjej\pgomwrym.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3204
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description alsmjej "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3076
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start alsmjej
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2448
- 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:5048
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 1180
  2⤵
  - Program crash
  PID:1112

C:\Windows\SysWOW64\alsmjej\pgomwrym.exe
C:\Windows\SysWOW64\alsmjej\pgomwrym.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4372
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3112
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 512
  2⤵
  - Program crash
  PID:3184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1188 -ip 1188
1⤵
PID:4188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4372 -ip 4372
1⤵
PID:3100

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

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Downloads

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

Filesize
14.7MB

MD5
28a9364d6e3844a189e4d736d69313d6

SHA1
93177b96b6703eed2fac5dbaa2fae594b25a66b4

SHA256
be4fba54a1dfbd65e2b64fa6c6b74e084bf194dfdba4cb2417c9b809a9fa34d1

SHA512
b21cdd179321b8d8298c95dbb489e5d1c1decbfa7632d51da828851e90bf6bb8ad4c528ebbdba42ee6aed08590c09d4163d7e35b7f8948756ed7a283426d4249

Download Submit
memory/1188-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1188-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1188-2-0x0000000000580000-0x0000000000593000-memory.dmp

Filesize
76KB

Download
memory/1188-8-0x0000000000580000-0x0000000000593000-memory.dmp

Filesize
76KB

Download
memory/1188-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1188-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/3112-14-0x0000000000860000-0x0000000000875000-memory.dmp

Filesize
84KB

Download
memory/3112-16-0x0000000000860000-0x0000000000875000-memory.dmp

Filesize
84KB

Download
memory/3112-17-0x0000000000860000-0x0000000000875000-memory.dmp

Filesize
84KB

Download
memory/4372-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4372-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4372-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4372-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads