Overview

overview

10

Static

static

10

Mail Acces...er.exe

windows7-x64

7

Mail Acces...er.exe

windows10-2004-x64

8

Mail Acces...r1.exe

windows7-x64

1

Mail Acces...r1.exe

windows10-2004-x64

1

Mail Acces...v2.exe

windows7-x64

7

Mail Acces...v2.exe

windows10-2004-x64

8

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General

  • Target

    Mail Access Checker by xRisky v2 [Free version].rar

  • Size

    172.5MB

  • Sample

    241205-jsgxhsvqbx

  • MD5

    14b77edbf19b14feff90fe5546798884

  • SHA1

    eee4918a91c5ed37a88ed7425f5b948da6f4f818

  • SHA256

    5f1992dd2b43541a02a77bccdb73ab2e47a17b9cd2a13e6a6cd40de2d12e7f20

  • SHA512

    57d0181b6330e0c0696776dd41e1eba7c713a1d351c8abb41e5259e2b4aae7179af8b543b9b182893cd0f9a8500952a4e32427d70c251f7c75a4c6d41f2fa6b3

  • SSDEEP

    3145728:MdmoIZ768Uzz+3baQahQQAbDHor/Jp3Jqm8zV/Qlrt33VxI6C8mRHll6P1G6:tZu8UPiPorD3J8Ql13VxiDRHll6n

Score
10/10
blankgrabbercollectioncredential_accessdefense_evasiondiscoveryexecutionpersistenceprivilege_escalationspywarestealerupx

Malware Config

Targets

    • Target

      Mail Access Checker by xRisky v2 [Free version]/Data/Modules/Checker.exe

    • Size

      6.0MB

    • MD5

      7b23b16fb9cb368b3b282f96d5067229

    • SHA1

      0393a31b074ce29a904e97929da620d3a2bc9f89

    • SHA256

      7e55049a20a923847008b11dd7c0886ab0b88bc9cf612fd4548191453c4fc5c9

    • SHA512

      57bc40d31995d451c1600de88e5f3c20253e63f248251033d2f92ab9d415c6d648ef4f1025e810ef7f561e7a45be6746de7a78da9a91467329145b6a40f0d8cf

    • SSDEEP

      98304:r75PmoDUN43WlmljOjFgFEblNHYSxTpirSHcUR43zrwkdA8QJCKC7bN3mb6a5tMu:H5PumWMOjmFwDRxtYSHdK34kdai7bN3A

    Score
    8/10
    upxcollectioncredential_accessdefense_evasiondiscoveryexecutionpersistenceprivilege_escalationspywarestealer

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Drops file in Drivers directory

    • Clipboard Data

      Adversaries may collect data stored in the clipboard from users copying information within or between applications.

      collection

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

      credential_accessstealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

      defense_evasion

    • Enumerates processes with tasklist

      discovery

    • Hide Artifacts: Hidden Files and Directories

      defense_evasion

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1behavioral2

    • Target

      Mail Access Checker by xRisky v2 [Free version]/Data/Modules/Checker1.exe

    • Size

      67.7MB

    • MD5

      ca4b373ccf1990360ecc5c0b6f0b3b14

    • SHA1

      8c385c650e51100aa5026f14f1b81d171b9fae4c

    • SHA256

      7d05137859424894e35840aaf22666de2f5a48cc59ee9c22b6044bf388ab52bf

    • SHA512

      b2987a1b8ddea877ee7da5b47146b8f60387b41dccaaaaa653f12f53d53abfc8fe7fe0d2a51e09e25ee8501b1634a4d0a888c45eb13172fd7c89a8b6fcf282c0

    • SSDEEP

      1572864:lRWKf5aPpViUdnDIbhoIDt05cLHljPqHq2MbIep/AexKhHRnfYsdW4dU:lRWKfipViUdDIFb9qKZDVx8dU4d

    Score
    1/10
    behavioral3behavioral4

    • Target

      Mail Access Checker by xRisky v2 [Free version]/Mailaccess Checker by xRisky v2.exe

    • Size

      582KB

    • MD5

      82c493c58ad0ed2255d1500840d1d75c

    • SHA1

      24b2997983add8d90e896af2dbdc32cf19895389

    • SHA256

      325a912d9f9f4878cfc13a45a2da2494b4c4080c39d8a40166eb39c6ef3d24a0

    • SHA512

      68f91fe3693dffdaadf28ad5dd3719cdfddff6e4729f48774ae336aef97908d8bc2c419aff65a7d4cbe24e2b85ea2f311dfec2de1136ed7fd7374d2d3ead8c88

    • SSDEEP

      6144:oOaTmuaJ0GFRabVg8O1lFrRawLmKx85EJXlkc3rNPWyXJJy1LDR6qwYelXN1C4q1:oOSmvFobVgZtCKZX97NPWyXgteYILQ

    Score
    8/10
    discoveryupxcollectioncredential_accessdefense_evasionexecutionpersistenceprivilege_escalationspywarestealer

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Clipboard Data

      Adversaries may collect data stored in the clipboard from users copying information within or between applications.

      collection

    • Executes dropped EXE

    • Loads dropped DLL

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

      credential_accessstealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

      defense_evasion

    • Enumerates processes with tasklist

      discovery

    • Hide Artifacts: Hidden Files and Directories

      defense_evasion

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral5behavioral6

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

PowerShell

2
T1059.001

Persistence

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Obfuscated Files or Information

1
T1027

Command Obfuscation

1
T1027.010

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Browser Information Discovery

1
T1217

Process Discovery

1
T1057

Query Registry

1
T1012

Remote System Discovery

1
T1018

System Information Discovery

4
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

2
T1016

Internet Connection Discovery

1
T1016.001

Wi-Fi Discovery

1
T1016.002

Lateral Movement

Collection

Clipboard Data

1
T1115

Data from Local System

2
T1005

Command and Control

Exfiltration

Impact

Tasks