Overview

overview

10

Static

static

a2088c326f...93.exe

windows7-x64

10

a2088c326f...93.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    a2088c326ff419b13f3b65fa4358ac0dae9989f28fc03122f603ec4e1d04a993

  • Size

    98KB

  • Sample

    220731-nr8fasfdan

  • MD5

    514b7bcdfaee001949a7d283d30b4e4f

  • SHA1

    efafadcadb7c5666bc6716b3e3b7228008f78e2e

  • SHA256

    a2088c326ff419b13f3b65fa4358ac0dae9989f28fc03122f603ec4e1d04a993

  • SHA512

    700f7cdc8538f879ecae07218850750bcb0edcf2fddafedbf175119d4c2e0d85efc257f9dfba99a31b0d87cf0b6d2bc915f6931243572c91646df1b70409eb45

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      a2088c326ff419b13f3b65fa4358ac0dae9989f28fc03122f603ec4e1d04a993

    • Size

      98KB

    • MD5

      514b7bcdfaee001949a7d283d30b4e4f

    • SHA1

      efafadcadb7c5666bc6716b3e3b7228008f78e2e

    • SHA256

      a2088c326ff419b13f3b65fa4358ac0dae9989f28fc03122f603ec4e1d04a993

    • SHA512

      700f7cdc8538f879ecae07218850750bcb0edcf2fddafedbf175119d4c2e0d85efc257f9dfba99a31b0d87cf0b6d2bc915f6931243572c91646df1b70409eb45

    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

    • 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

    • 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