Overview

overview

10

Static

static

100d8852de...37.exe

windows7_x64

10

100d8852de...37.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37

  • Size

    316KB

  • Sample

    220604-qxz28adgbj

  • MD5

    5c3ecbbd07a3a9ea27ab0bddb1a6176d

  • SHA1

    171a1e5ad3fb212af8e30d73a70338c319b4f346

  • SHA256

    100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37

  • SHA512

    0a09c1313c03249c72f19ffe84cb5c3758b9f1394f82aaac24f969009e21b5647cf9af3b3f35703a27c8496427692a8c715c72ac3bd9f918f7cb6ccf21dc8465

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37

    • Size

      316KB

    • MD5

      5c3ecbbd07a3a9ea27ab0bddb1a6176d

    • SHA1

      171a1e5ad3fb212af8e30d73a70338c319b4f346

    • SHA256

      100d8852de93e54659c2e9da519cab6934f488bf4c959889f978e49c8ba59e37

    • SHA512

      0a09c1313c03249c72f19ffe84cb5c3758b9f1394f82aaac24f969009e21b5647cf9af3b3f35703a27c8496427692a8c715c72ac3bd9f918f7cb6ccf21dc8465

    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