tofsee | 60ae3c1d83e93f2d3181e4d39e85629d981a87cec4f370d7bfd66a0d448352bb | Triage

Sharing

General

Target

35f519000ad078d242c0bce097c59b31.bin
Size

200KB
Sample

240506-bhbnraeh83
MD5

6f3d9b69732f16defa09f45b36ed9d08
SHA1

dbd26eeb77e98f917ddeedbae360934f14c75adf
SHA256

60ae3c1d83e93f2d3181e4d39e85629d981a87cec4f370d7bfd66a0d448352bb
SHA512

e6aad3ca937df25522ca759ae6689be91d4848d34b0182b200b2454f5d6f372baf98d6815edfcef3ca7095c1bc34c898ca7834c5fe95987d5c0bce25d08784c3
SSDEEP

6144:VmqPhym081df/J2zh1E282WibpLQLD7sN+fH:VxPnTnfgXdbKDA8P

Score

10^/10

tofsee evasion execution persistence trojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

- Target
  
  1dc79692db8709e88fee042c5555f8432dc4638442887d8150b8b7c67f5f3eb2.exe
- Size
  
  326KB
- MD5
  
  35f519000ad078d242c0bce097c59b31
- SHA1
  
  41a3c859c36a4240a51e6ce17ab269e8d2728eb0
- SHA256
  
  1dc79692db8709e88fee042c5555f8432dc4638442887d8150b8b7c67f5f3eb2
- SHA512
  
  260f2efe4757c518f96269ba3a3fd5b5c603fa6a52d9c0d976222158609911004ce48df4e75298c11de67ea29d91969f217986e4c0f1b83bb2f5d2a43a772997
- SSDEEP
  
  3072:KLTZ5XJKQsp6NU4tqwCyc40r+oeHpmCR54kDSWegJSVE+Er20L4fdoiKuIov5QId:KbCt44p40rqHPbDb86r2LiNovrb/a
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