Overview

overview

10

Static

static

7

49255a7e20...47.exe

windows7_x64

10

49255a7e20...47.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    49255a7e201aebbd0dfd7e9384ada9d184f2fcdacbb054a897be53833b8a2f47

  • Size

    2.1MB

  • Sample

    220625-cv9a8acgh7

  • MD5

    983654c42c7dbcfe606794d50dd06ace

  • SHA1

    da0da07d82a7faee3d2d5b045b0eeb9b7d7aa855

  • SHA256

    49255a7e201aebbd0dfd7e9384ada9d184f2fcdacbb054a897be53833b8a2f47

  • SHA512

    b397ba21a2bbb927aebcff171e8445a6a1002d401860d6817ea11bd6e4521742293607799ba6a7394d974542eeb43769e969fc64b1ec7b84600ac48d7e504e97

Score
10/10
oskievasioninfostealerspywarestealerthemidatrojan

Malware Config

Extracted

Family

oski

C2

sailent.xyz

Targets

    • Target

      49255a7e201aebbd0dfd7e9384ada9d184f2fcdacbb054a897be53833b8a2f47

    • Size

      2.1MB

    • MD5

      983654c42c7dbcfe606794d50dd06ace

    • SHA1

      da0da07d82a7faee3d2d5b045b0eeb9b7d7aa855

    • SHA256

      49255a7e201aebbd0dfd7e9384ada9d184f2fcdacbb054a897be53833b8a2f47

    • SHA512

      b397ba21a2bbb927aebcff171e8445a6a1002d401860d6817ea11bd6e4521742293607799ba6a7394d974542eeb43769e969fc64b1ec7b84600ac48d7e504e97

    Score
    10/10
    oskievasioninfostealerspywarestealerthemidatrojan

    • Oski

      Oski is an infostealer targeting browser data, crypto wallets.

      infostealeroski

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Checks whether UAC is enabled

      evasiontrojan

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Tasks