Overview

overview

10

Static

static

7

SolaraBoot...er.rar

windows7-x64

3

SolaraBoot...er.rar

windows10-2004-x64

3

SolaraBoot...er.exe

windows7-x64

10

SolaraBoot...er.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    SolaraBootstrapper.rar

  • Size

    2.5MB

  • Sample

    240629-1tcgvs1anj

  • MD5

    3917140ba46745b8a852fc8c48718a78

  • SHA1

    97000a0f43db8aaccd780feb9f9ec444dbb7ff94

  • SHA256

    cc4f04bb11e1e2ea13d0c1d7d6961dffa798fb480879252f147393ae3496d202

  • SHA512

    5395b5b0cc573dba93b525db6d8630ab8eb21ac786d5850d89417608878c4be2fb1395dca66f5169a7ca26bca4cfbf26c75ed2dfb99e00b97ede211e88b9eb7d

  • SSDEEP

    49152:+DkoW+7VTfW3zxmowokKsca1oLOgi3ZI13FwhvkhO2fEK3QeFwzt5h5Hn3YigNR:+DHWi+VMokKscGOOgeiheGOuFMh93YLn

Score
10/10
xwormevasionpersistenceratthemidatrojan

Malware Config

Extracted

Family

xworm

Version

3.1

C2

feature-mouse.gl.at.ply.gg:32683

Mutex

VQh28vrCo2a4H2gG

Attributes
  • Install_directory

    %Temp%

  • install_file

    USB.exe

aes.plain

Targets

    • Target

      SolaraBootstrapper.rar

    • Size

      2.5MB

    • MD5

      3917140ba46745b8a852fc8c48718a78

    • SHA1

      97000a0f43db8aaccd780feb9f9ec444dbb7ff94

    • SHA256

      cc4f04bb11e1e2ea13d0c1d7d6961dffa798fb480879252f147393ae3496d202

    • SHA512

      5395b5b0cc573dba93b525db6d8630ab8eb21ac786d5850d89417608878c4be2fb1395dca66f5169a7ca26bca4cfbf26c75ed2dfb99e00b97ede211e88b9eb7d

    • SSDEEP

      49152:+DkoW+7VTfW3zxmowokKsca1oLOgi3ZI13FwhvkhO2fEK3QeFwzt5h5Hn3YigNR:+DHWi+VMokKscGOOgeiheGOuFMh93YLn

    Score
    3/10
    behavioral1behavioral2

    • Target

      SolaraBootstrapper.exe

    • Size

      2.5MB

    • MD5

      b438aa2ccb3380494ca147d34d3fba56

    • SHA1

      fdbc721bf15236cc981a95ffda53feba6a7033ca

    • SHA256

      8f26519cc724675fe6112c07b20ff129543125822d2f320f7648775b8ba4781f

    • SHA512

      39b3974af9558feb0712b91b40dd2de75a785a6b02fd4c1ab2839ae3c9c352e23a4a84efbb4d48d16b30f8fd6275341fdeca59938f018070721141e8c7db1af8

    • SSDEEP

      49152:fnZqHAl+vgnacJLGSeZs+OmboDdYQ4GGc5QM47XVF:fZq34nayLGSeTjg2c5Qv

    Score
    10/10
    xwormevasionpersistenceratthemidatrojan

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • 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.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral3behavioral4

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

1
T1112

Credential Access

Discovery

System Information Discovery

5
T1082

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks