Overview

overview

10

Static

static

3

02ada88638...6f.exe

windows7-x64

10

02ada88638...6f.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    e9de43f24d8b6f5be55ef6971d3d14e5.bin

  • Size

    141KB

  • Sample

    230517-b812bsdd52

  • MD5

    4f585f5fab7ce41552b6da19d5622f8d

  • SHA1

    5aac9891daff26543ff355dd679f0f2a8d3f67a9

  • SHA256

    ee168e1e121e68d3365469578e75aea24bcdc6e024d1c10edafe9559ee366190

  • SHA512

    d8a2700b5195f2082700e91dce382edd91a338ffe42e13289ab420252f312e5b5030e704d7873bf214c0a1f62c9017345cdc092d387eb03b0a0987313b9e2308

  • SSDEEP

    3072:BqRsq0BsoJyTrVkzUuhxn7OvpvOs3bPerFy4hwI:I7oJyTrVkIuhxCZOs37K42wI

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      02ada88638528eb89e67ce30a88ca8a58efab167c389ffd893641459bc64666f.exe

    • Size

      234KB

    • MD5

      e9de43f24d8b6f5be55ef6971d3d14e5

    • SHA1

      ca701f416d520ed37a6b5103dc8358a53c896410

    • SHA256

      02ada88638528eb89e67ce30a88ca8a58efab167c389ffd893641459bc64666f

    • SHA512

      2ccddd5bda9366a0bd39fa2334ee27f4220816d69569d6d6f064e43ebe5e26c01fa17cfee17197c2e2151501b874ef1d88503a1e4ba40ca36f45e3c062ccdeba

    • SSDEEP

      3072:jVPQzmAd7g0wS/+NvCTrKxdOZIyp+Uq3urvbWUWNiHvv5+kQ54A5W4OCNZ:aBOSearQdN7KoOv8i6Z

    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