tofsee | 0c584226400c86c79c9afd05f6eee6d7c8e24b9fa2ac8c5c94c14bcda5caf4f4

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-12-2024 20:26

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General

Target

2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe
Size

14.6MB
MD5

7822d4dadaa829018b0c167b74340e6e
SHA1

5f468af0c5575e32f87ef09a767f34ef7e3fd9eb
SHA256

0c584226400c86c79c9afd05f6eee6d7c8e24b9fa2ac8c5c94c14bcda5caf4f4
SHA512

499ad9ea86008198c2c809e5660d224bb20d6f70a6a7d8f0ba19c7b1141efe96a558b9326561e79c644da206444d87c9952fce0fb75125badd1ea3930ffa98a9
SSDEEP

3072:uLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:3OMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\cdnocnvs = "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
2912	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\cdnocnvs\ImagePath = "C:\\Windows\\SysWOW64\\cdnocnvs\\uptlbmom.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2456	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2760	uptlbmom.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2760 set thread context of 2456	2760	uptlbmom.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
1824	sc.exe
2716	sc.exe
2800	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.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	uptlbmom.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 30 IoCs

description	pid	Process	procid_target
PID 1396 wrote to memory of 2388	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	31
PID 1396 wrote to memory of 2388	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	31
PID 1396 wrote to memory of 2388	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	31
PID 1396 wrote to memory of 2388	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	31
PID 1396 wrote to memory of 2024	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	33
PID 1396 wrote to memory of 2024	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	33
PID 1396 wrote to memory of 2024	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	33
PID 1396 wrote to memory of 2024	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	33
PID 1396 wrote to memory of 1824	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	35
PID 1396 wrote to memory of 1824	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	35
PID 1396 wrote to memory of 1824	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	35
PID 1396 wrote to memory of 1824	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	35
PID 1396 wrote to memory of 2716	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	37
PID 1396 wrote to memory of 2716	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	37
PID 1396 wrote to memory of 2716	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	37
PID 1396 wrote to memory of 2716	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	37
PID 1396 wrote to memory of 2800	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	39
PID 1396 wrote to memory of 2800	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	39
PID 1396 wrote to memory of 2800	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	39
PID 1396 wrote to memory of 2800	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	39
PID 2760 wrote to memory of 2456	2760	uptlbmom.exe	42
PID 2760 wrote to memory of 2456	2760	uptlbmom.exe	42
PID 2760 wrote to memory of 2456	2760	uptlbmom.exe	42
PID 2760 wrote to memory of 2456	2760	uptlbmom.exe	42
PID 2760 wrote to memory of 2456	2760	uptlbmom.exe	42
PID 2760 wrote to memory of 2456	2760	uptlbmom.exe	42
PID 1396 wrote to memory of 2912	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	43
PID 1396 wrote to memory of 2912	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	43
PID 1396 wrote to memory of 2912	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	43
PID 1396 wrote to memory of 2912	1396	2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1396
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cdnocnvs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2388
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uptlbmom.exe" C:\Windows\SysWOW64\cdnocnvs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2024
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cdnocnvs binPath= "C:\Windows\SysWOW64\cdnocnvs\uptlbmom.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cdnocnvs "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cdnocnvs
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2800
- 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:2912

C:\Windows\SysWOW64\cdnocnvs\uptlbmom.exe
C:\Windows\SysWOW64\cdnocnvs\uptlbmom.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-27_7822d4dadaa829018b0c167b74340e6e_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760
- 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:2456

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\uptlbmom.exe

Filesize
12.0MB

MD5
92916eaa60a0c50f6378fd7ad2a87ca7

SHA1
d37c248b136b658a7674cef74af46853a8dde03d

SHA256
a05bce921bee92f0b38a100b6a4d53e9e622be21734c0275a33d5f43433aecdb

SHA512
c5f799f15262aed7a097d27d9887724a66bb6350cd74432781a56b46f4084bd173f8b23c79c6d3ba9f31aacd38602935c118e05e72432b5ea1692ab034d13def

Download Submit
memory/1396-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1396-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1396-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1396-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1396-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/1396-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2456-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2456-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2456-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2456-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2456-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2760-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads