Overview

overview

10

Static

static

3

e54e9f7fe7...f3.exe

windows7-x64

10

e54e9f7fe7...f3.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1e93be0d225ce928393039c9771321fb.bin

  • Size

    166KB

  • Sample

    230512-bkztcsdd9z

  • MD5

    59c5fe1cb8ceafa3561723b2e51d03ff

  • SHA1

    ea01fa1812f0c8e8dfd40fee98376bb102fad094

  • SHA256

    e01a673cecb79f018242748a73f1e1d2987fe2064c4256b6503f248043eb5f72

  • SHA512

    fd07a82be81fd08c73910b37d05f4b7a8af2858926d1a99871a920aa0fe3e582e9566f3df8a41d477f266b838f6af7150c3ccf608596909c3e4caa0cd6e3f3b7

  • SSDEEP

    3072:Wv/Gr2HJX1/DpY5iSVURG3pp3Sey+CBnBdO4aja6IFedZzvVuTBZxvp44S8CrZ:WvMetdpmiSVpZpSZBdTaeDeXVuPxqT8W

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      e54e9f7fe7725afa85dfe0d0e04cf873d01084989205d93b4b4e1e1de7d935f3.exe

    • Size

      315KB

    • MD5

      1e93be0d225ce928393039c9771321fb

    • SHA1

      27ffe470bee42d5ce14f3914bc710f68fbd74247

    • SHA256

      e54e9f7fe7725afa85dfe0d0e04cf873d01084989205d93b4b4e1e1de7d935f3

    • SHA512

      3d51ef74913c2266f88a2b734ecb058caa390e3f72fb7aa47e7c5ea3565ef832394a0854c3aa84208143fb005d3d506a46465749b56d80aecee9755c5f8d378c

    • SSDEEP

      3072:TNXD1CpI7TkxlIlY0I0n+sDiV6YtnEduisT58ThH8x/06j0eO/OfgaH9xWm+d/HO:hEpjXQYhIs6YtnEduisN8F81069lH9A

    Score
    10/10
    tofseexmrigevasionminerpersistencetrojan

    • Tofsee

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

      trojantofsee

    • Windows security bypass

      evasiontrojan

    • xmrig

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

      minerxmrig

    • XMRig Miner payload

      miner

    • 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

    • 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

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