General

  • Target

    Unpaid invoice.zip

  • Size

    324KB

  • Sample

    211015-x7x4yacbdp

  • MD5

    57ca391bdad17bf09e724a84f970c0fc

  • SHA1

    904a76bc1ff25510f2b3cf61bf256202e9aad704

  • SHA256

    e982c63be9c5eb7defc0ddbf72d27a5e6ea2fe2c050777595a831470ca9aa31e

  • SHA512

    f168365076d581f7a2f69405f9eccb67a22d3f3ae4388099a72b783c4c1cd26e530241258950bd33ef865715f49d49ed0a212b7eef52c20ec478d9f621f4405e

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

b2c0

C2

http://www.thesewhitevvalls.com/b2c0/

Decoy

bjyxszd520.xyz

hsvfingerprinting.com

elliotpioneer.com

bf396.com

chinaopedia.com

6233v.com

shopeuphoricapparel.com

loccssol.store

truefictionpictures.com

playstarexch.com

peruviancoffee.store

shobhajoshi.com

philme.net

avito-rules.com

independencehomecenters.com

atp-cayenne.com

invetorsbank.com

sasanos.com

scentfreebnb.com

catfuid.com

Targets

    • Target

      Unpaid invoice.exe

    • Size

      450KB

    • MD5

      98d2d5ac3bd493d77f0a7300a43d045b

    • SHA1

      7fdd3b9b76f2c40df10def7ec3aa25c4fb192ec7

    • SHA256

      1bbc8a34b7590c1593c5a79a8d0f93b17a162f44893c37aa11e4cb9e0e2d96bf

    • SHA512

      32b7aa0518d6b41864d0f6f90d397cd377244b8f6af07178252aeb5b7ecf57e347c2aa2a3a4d94327d799bfcf8fe87b5c8164b0102c64258fd55a4c024ad0ef3

    • Xloader

      Xloader is a rebranded version of Formbook malware.

    • suricata: ET MALWARE FormBook CnC Checkin (GET)

      suricata: ET MALWARE FormBook CnC Checkin (GET)

    • suricata: ET MALWARE FormBook CnC Checkin (POST) M2

      suricata: ET MALWARE FormBook CnC Checkin (POST) M2

    • Xloader Payload

    • Adds policy Run key to start application

    • Executes dropped EXE

    • Deletes itself

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Tasks