Overview

overview

10

Static

static

3d40e81224...06.exe

windows7_x64

10

3d40e81224...06.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    3d40e81224ca9620c592189da91429622a1493384561ab839bfb9c0ad3869e06

  • Size

    113KB

  • Sample

    220703-eaachaeadn

  • MD5

    bb99840487a3b6cd641612b2d02cd14a

  • SHA1

    6231dd81359dbc961b572ed5191756c0d8f910f9

  • SHA256

    3d40e81224ca9620c592189da91429622a1493384561ab839bfb9c0ad3869e06

  • SHA512

    ab420f39ef21cf0eebf395fe5506ef87ab02adab8f15366c9deecb17e5266ee88ade649e8cabc19d9538da579a2fec69983ae7e160fb48c35d21e95890112ce2

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      3d40e81224ca9620c592189da91429622a1493384561ab839bfb9c0ad3869e06

    • Size

      113KB

    • MD5

      bb99840487a3b6cd641612b2d02cd14a

    • SHA1

      6231dd81359dbc961b572ed5191756c0d8f910f9

    • SHA256

      3d40e81224ca9620c592189da91429622a1493384561ab839bfb9c0ad3869e06

    • SHA512

      ab420f39ef21cf0eebf395fe5506ef87ab02adab8f15366c9deecb17e5266ee88ade649e8cabc19d9538da579a2fec69983ae7e160fb48c35d21e95890112ce2

    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