Overview

overview

10

Static

static

204e71a886...57.exe

windows7_x64

10

204e71a886...57.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    204e71a886288bb5d37336b601c608f2b2ce3b8cf3003adef9a3db70d13f0257

  • Size

    143KB

  • Sample

    220612-p724wsgga6

  • MD5

    6a07816512f5c3fc626e4f8fcc9b0058

  • SHA1

    217533c5246f3133256dbf6cf09f450bd7e3edcd

  • SHA256

    204e71a886288bb5d37336b601c608f2b2ce3b8cf3003adef9a3db70d13f0257

  • SHA512

    1e65a4680b1e3e2fb94e3a7e0fe53189ebe306bfe61d2a18b3ae4226e28078cd37ad0fcaba58de5b0b542d205b9152c26e32cd596e2954f29cb200b816bfc721

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      204e71a886288bb5d37336b601c608f2b2ce3b8cf3003adef9a3db70d13f0257

    • Size

      143KB

    • MD5

      6a07816512f5c3fc626e4f8fcc9b0058

    • SHA1

      217533c5246f3133256dbf6cf09f450bd7e3edcd

    • SHA256

      204e71a886288bb5d37336b601c608f2b2ce3b8cf3003adef9a3db70d13f0257

    • SHA512

      1e65a4680b1e3e2fb94e3a7e0fe53189ebe306bfe61d2a18b3ae4226e28078cd37ad0fcaba58de5b0b542d205b9152c26e32cd596e2954f29cb200b816bfc721

    Score
    10/10
    tofseeevasionpersistencetrojan

    • Tofsee

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

      trojantofsee

    • 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

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks