B6B2406B.xlsb_9746382B9BD6BEEC5889CE3256DEA9EF.zip

General
Target

B6B2406B.xlsb_9746382B9BD6BEEC5889CE3256DEA9EF.zip

Size

389KB

Sample

210726-wv628dyeta

Score
10 /10
MD5

2f83ce50f2c3acd4899980f6777576cf

SHA1

93f1311639d377af7ed4a7e7464daf7236bfaa23

SHA256

898e7c935f0f54c72d1071337591b1490efe644d881bd73a615b8cfb1394b5b0

SHA512

cc825a4637298a635280251e343171ddac4595899c6cccc17c61de8702f5f4614394f410e3370deac7d85f1bb38a9b21359f67836e49290211fe2a14173a201d

Malware Config

Extracted

Family cobaltstrike
Botnet 1359593325
C2

http://94.198.40.11:80/visit.js

Attributes
access_type
512
host
94.198.40.11,/visit.js
http_header1
AAAABwAAAAAAAAADAAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
http_header2
AAAACgAAACZDb250ZW50LVR5cGU6IGFwcGxpY2F0aW9uL29jdGV0LXN0cmVhbQAAAAcAAAAAAAAABQAAAAJpZAAAAAcAAAABAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
http_method1
GET
http_method2
POST
polling_time
60000
port_number
80
sc_process32
%windir%\syswow64\rundll32.exe
sc_process64
%windir%\sysnative\rundll32.exe
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCHFcV/jTWIWbMLGsg/xD3cCk0yHN+dWUBeSAZEdvXFEiawkFkWyJWyGyT0NbgSrwHmz+krYJY6l6YOoUNPWMNc6YpuQUYrBiilMX6rDkmmqUqem2tP6G4E6nBva8DOwNu671c8iFZeK4M8s6PPnUDuEuSHchHBLc5wV6Ew7BLO5QIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
unknown1
4096
unknown2
AAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
uri
/submit.php
user_agent
Mozilla/4.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)
watermark
1359593325
Targets
Target

B6B2406B.xlsb

MD5

9746382b9bd6beec5889ce3256dea9ef

Filesize

399KB

Score
10 /10
SHA1

1d12104d6309d98565193337eb546943eaeea959

SHA256

205f42a518914e75620077ed79b9016b48f657d305ef892c6633fa6397463680

SHA512

cfcfa74c464fd67941f35711ec602256fe8fed0ae9b49634ef9d9794f5f92e55f765a4479dcb71241731df0d149a20b2064e6bba5b8bc3f5f8c9599ac152557c

Tags

Signatures

  • Cobaltstrike

    Description

    Detected malicious payload which is part of Cobaltstrike.

    Tags

  • suricata: ET MALWARE Maldoc Retrieving Payload 2021-07-06

    Tags

  • CryptOne packer

    Description

    Detects CryptOne packer defined in NCC blogpost.

    Tags

  • Blocklisted process makes network request

  • Downloads MZ/PE file

  • Executes dropped EXE

Related Tasks

MITRE ATT&CK Matrix
Collection
    Command and Control
      Credential Access
        Defense Evasion
        Execution
          Exfiltration
            Impact
              Initial Access
                Lateral Movement
                  Persistence
                    Privilege Escalation
                      Tasks