Overview

overview

10

Static

static

3

61e48789ff...aa.exe

windows7-x64

10

61e48789ff...aa.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    61e48789ffe85d3f4ad3a4b35888db4760d2cac61f032befe8284f94b32684aa

  • Size

    292KB

  • Sample

    240720-1192psyhnr

  • MD5

    cd2867400d86adf084a13deec86d2c39

  • SHA1

    92263b1eef5d2e25cfb0c5060f3b9e25cd69779f

  • SHA256

    61e48789ffe85d3f4ad3a4b35888db4760d2cac61f032befe8284f94b32684aa

  • SHA512

    3b6225ea43362c8c468f3bf37cd2365ae447efe7c1a347504ef10aeead0e0c602f5bae3270efe738ee82630880a4b8637904c484eabd85eb22670764f4479d4b

  • SSDEEP

    3072:Aw2bSHEENJRNgwkvXKATeyRhJLcXm65tz3CnfBpg23ic9gvL4Z:L2bNWJRz2Xnh+H5t7CnJp7uj4

Score
10/10
tofseeevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      61e48789ffe85d3f4ad3a4b35888db4760d2cac61f032befe8284f94b32684aa

    • Size

      292KB

    • MD5

      cd2867400d86adf084a13deec86d2c39

    • SHA1

      92263b1eef5d2e25cfb0c5060f3b9e25cd69779f

    • SHA256

      61e48789ffe85d3f4ad3a4b35888db4760d2cac61f032befe8284f94b32684aa

    • SHA512

      3b6225ea43362c8c468f3bf37cd2365ae447efe7c1a347504ef10aeead0e0c602f5bae3270efe738ee82630880a4b8637904c484eabd85eb22670764f4479d4b

    • SSDEEP

      3072:Aw2bSHEENJRNgwkvXKATeyRhJLcXm65tz3CnfBpg23ic9gvL4Z:L2bNWJRz2Xnh+H5t7CnJp7uj4

    Score
    10/10
    tofseeevasionexecutionpersistenceprivilege_escalationtrojan

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

      trojantofsee

    • Windows security bypass

      evasiontrojan

    • Creates new service(s)

      persistenceexecution

    • 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

    behavioral1behavioral2

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

2
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

1
T1562.001

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks