Overview

overview

10

Static

static

6b5ee5602c...e0.exe

windows7-x64

10

6b5ee5602c...e0.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    6b5ee5602cb0301d703e53c641d838110c049ae5a21295d4f8597dc794b172e0.exe

  • Size

    183KB

  • Sample

    221203-e5wtzsec58

  • MD5

    a9e7925167a97ff59857551875890545

  • SHA1

    b96371041a3f82abc88bded8d79a52672070ce8b

  • SHA256

    6b5ee5602cb0301d703e53c641d838110c049ae5a21295d4f8597dc794b172e0

  • SHA512

    60e4281118df51ba56bf7ccec44f19e68c09c699c4eaaaaf803ea4e39ca1959c7719e9f34dc2e97d50a22d9eeac755edbcc24ec04325a44628cea9c67c4d95f4

  • SSDEEP

    3072:/mEMgK6cyCsPbWmQW5lb4OjiUh6f9dhiEZw/oQ3q:pMBsPbWZz6qI

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      6b5ee5602cb0301d703e53c641d838110c049ae5a21295d4f8597dc794b172e0.exe

    • Size

      183KB

    • MD5

      a9e7925167a97ff59857551875890545

    • SHA1

      b96371041a3f82abc88bded8d79a52672070ce8b

    • SHA256

      6b5ee5602cb0301d703e53c641d838110c049ae5a21295d4f8597dc794b172e0

    • SHA512

      60e4281118df51ba56bf7ccec44f19e68c09c699c4eaaaaf803ea4e39ca1959c7719e9f34dc2e97d50a22d9eeac755edbcc24ec04325a44628cea9c67c4d95f4

    • SSDEEP

      3072:/mEMgK6cyCsPbWmQW5lb4OjiUh6f9dhiEZw/oQ3q:pMBsPbWZz6qI

    Score
    10/10
    tofseeevasionpersistencetrojanxmrigminer

    • Tofsee

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

      trojantofsee

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

      minerxmrig

    • XMRig Miner payload

      miner

    • Creates new service(s)

      persistence

    • Executes dropped EXE

    • 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.

    • Drops file in System32 directory

    • 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

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks