tofsee | 32e5898172c5f72671362353658b1e0e17f9dd1dff54d05df4aa2706f31a5b8a | Triage

Sharing

General

Target

66f1471577c3fd73acd71d4bd0317410_NeikiAnalytics
Size

226KB
Sample

240509-r9mhbsfd8x
MD5

66f1471577c3fd73acd71d4bd0317410
SHA1

bf5608bab94ac20b4cb035f029037e9ab01261de
SHA256

32e5898172c5f72671362353658b1e0e17f9dd1dff54d05df4aa2706f31a5b8a
SHA512

bcfee081b3d338a5f6ff371afd75be86e3e78fb410b5ce684be4a1cad0ad820764ef68e65786da818f7b9e25a097fac9ce748e97ff92031ed0b703a5f2badf6b
SSDEEP

3072:Vs6LoMMZ72uOA+TzcR3c+q57NKDj47uz2wMF7cIZH3gFT+Hzet:lyFrPqKXgwsZH3gFToq

Score

10^/10

tofsee evasion execution persistence trojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

- Target
  
  66f1471577c3fd73acd71d4bd0317410_NeikiAnalytics
- Size
  
  226KB
- MD5
  
  66f1471577c3fd73acd71d4bd0317410
- SHA1
  
  bf5608bab94ac20b4cb035f029037e9ab01261de
- SHA256
  
  32e5898172c5f72671362353658b1e0e17f9dd1dff54d05df4aa2706f31a5b8a
- SHA512
  
  bcfee081b3d338a5f6ff371afd75be86e3e78fb410b5ce684be4a1cad0ad820764ef68e65786da818f7b9e25a097fac9ce748e97ff92031ed0b703a5f2badf6b
- SSDEEP
  
  3072:Vs6LoMMZ72uOA+TzcR3c+q57NKDj47uz2wMF7cIZH3gFT+Hzet:lyFrPqKXgwsZH3gFToq
Score

10^/10

tofsee evasion execution persistence trojan
- Tofsee
  Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
  trojan tofsee
- Windows security bypass
  evasion trojan
- Creates new service(s)
  persistence execution
- Modifies Windows Firewall
  evasion
- Sets service image path in registry
  persistence
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Deletes itself
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of SetThreadContext
behavioral1 behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

Service Execution

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Create or Modify System Process

Windows Service

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Create or Modify System Process

Windows Service

Defense Evasion

Impair Defenses

Disable or Modify System Firewall

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

tofseeevasionexecutionpersistencetrojan

behavioral2

tofseeevasionexecutionpersistencetrojan