Overview

overview

10

Static

static

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    file.exe

  • Size

    191KB

  • Sample

    221202-aphj7sac6t

  • MD5

    dcf33cd63e312a454f63a432f6b4ef8f

  • SHA1

    f591c66127decb2783334ee8850692df9d7e18e5

  • SHA256

    f29f8f753d8a8207be7e4177fa84d7f4f26373a31d42217b6797112caae396b3

  • SHA512

    b05b66a840301cad1aa9bd9f73b8f62ad13aa2d32dbba8a9ac1515a836f294f434c9426ab79bc681192503c8c54c6f196920db9d4bbe6d7a7d138f368a89a9f7

  • SSDEEP

    3072:jBl1l4ghxXI5ONlNwjzZaUkODD8hlGEUqCtWPQr3Rs9E3AZxpR/SlKG:RhxBzNwjzZfZ0XPQravpR

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      file.exe

    • Size

      191KB

    • MD5

      dcf33cd63e312a454f63a432f6b4ef8f

    • SHA1

      f591c66127decb2783334ee8850692df9d7e18e5

    • SHA256

      f29f8f753d8a8207be7e4177fa84d7f4f26373a31d42217b6797112caae396b3

    • SHA512

      b05b66a840301cad1aa9bd9f73b8f62ad13aa2d32dbba8a9ac1515a836f294f434c9426ab79bc681192503c8c54c6f196920db9d4bbe6d7a7d138f368a89a9f7

    • SSDEEP

      3072:jBl1l4ghxXI5ONlNwjzZaUkODD8hlGEUqCtWPQr3Rs9E3AZxpR/SlKG:RhxBzNwjzZfZ0XPQravpR

    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

    • 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.

    • Deletes itself

    • 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