Overview

overview

10

Static

static

3

de3f27526e...0b.exe

windows7-x64

10

de3f27526e...0b.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    c47f32f68a1ca3309768b48ec98cd752.bin

  • Size

    171KB

  • Sample

    230507-hdqqfahg94

  • MD5

    67fce904f3593d65c04ecdf87202a0aa

  • SHA1

    fad95bcfcf61ff66167a0a0fe6c0998e25d5b018

  • SHA256

    a8ffadf2ab8d3c75298773b6b619a6e5cbfc9557592f2993195f82d12987f049

  • SHA512

    7b8468012af6f4d4da384cac082681950692d4a2a670f375187780928eb37fe2cc4597e996f3ad87f9770a1b60c59863356e78aef64c96d7f5a8777d522d86bd

  • SSDEEP

    3072:yIFYoV5M+0Uqp4rH8tgs/MITd8w0cjaMlbossnxMADYUSZ9o:yIOo7Mt3Ars/MIZ8w0cuwossSADYUSZu

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      de3f27526eca92d8bab305d2942fbaf89d96b5fda6467dbf931b373868215b0b.exe

    • Size

      302KB

    • MD5

      c47f32f68a1ca3309768b48ec98cd752

    • SHA1

      ab24f2d6a2cacd0b807b2a174e4c43e8d629b32e

    • SHA256

      de3f27526eca92d8bab305d2942fbaf89d96b5fda6467dbf931b373868215b0b

    • SHA512

      747db0d277eac21cdb2f51862fe861e27b444bdae4ed08bcc92a92d27c75c6ee602723fa102a3501f980bea18bd2c9a500113c6e9cf42d752240e145b1bd610d

    • SSDEEP

      3072:Muy7xHO5Ur+3sfGjmvp8hPdJidlfZl8ebAGMR5zODTKchd+OH:xy7xHvrmsejm6d2NZlDAGMHOKcv+y

    Score
    10/10
    tofseeevasionpersistencetrojan

    • Tofsee

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

      trojantofsee

    • Windows security bypass

      evasiontrojan

    • Creates new service(s)

      persistence

    • 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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

New Service

1
T1050

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

New Service

1
T1050

Defense Evasion

Disabling Security Tools

1
T1089

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks