Overview

overview

10

Static

static

3

cc94f49acd...c8.exe

windows7-x64

7

cc94f49acd...c8.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    cc94f49acdd8741c94263ec4d79b3cf929ae811cd12802c960e4eedb74581bc8

  • Size

    1.5MB

  • Sample

    240520-rmg94aec4t

  • MD5

    6af1015805cee45d24566eee7431103c

  • SHA1

    e4b02689e876cf59a0b93fa9b32d410fd89b4cea

  • SHA256

    cc94f49acdd8741c94263ec4d79b3cf929ae811cd12802c960e4eedb74581bc8

  • SHA512

    fa6555e53a9ba85747d3926de2fdc7e132635597c75b4e7f7004917eb6ff7cfa50d4c0c71a978582153584c0615bdfefbcaef151a83abce2a0470baec94411a7

  • SSDEEP

    24576:I062cSEk8zN/E/F7KcdIw+80zIGwTxgLUX6JyzARFErCX1maX5Vwn9+P7k9:r6PaFF7KcdIw+8UPyaLUXe/bI9

Score
10/10
cobaltstrike391144938backdoortrojan

Malware Config

Extracted

Family

cobaltstrike

Botnet

391144938

C2

http://update.office365update.cn:443/mall_100_100.html

Attributes
  • access_type

    512

  • beacon_type

    2048

  • host

    update.office365update.cn,/mall_100_100.html

  • http_header1

    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

  • http_header2

    AAAACgAAAD5Db250ZW50LVR5cGU6IGFwcGxpY2F0aW9uL3gtd3d3LWZvcm0tdXJsZW5jb2RlZDsgY2hhcnNldD1VVEYtOAAAAAoAAAAgWC1SZXF1ZXN0ZWQtV2l0aDogWE1MSHR0cFJlcXVlc3QAAAAKAAAAMFJlZmVyZXI6IGh0dHBzOi8vc2hvcC4xMDA4Ni5jbi9tYWxsXzEwMF8xMDAuaHRtbAAAAAcAAAAAAAAADQAAAAUAAAAIX19mb3JtaWQAAAAJAAAAFHNyY2hmcm9tPW5SS2p4elpSUnh4AAAACQAAABJmaWVsZG5hbWU9Q3pMdUV4S2wAAAAJAAAAFHNlYXJjaHNvcnRpZD1NYnpTRW5CAAAABwAAAAEAAAANAAAAAgAAACphaWRfPTUyMjAwNTcwNSZhY2N2ZXI9MSZzaG93dHlwZT1lbWJlZCZ1YT0AAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=

  • http_method1

    GET

  • http_method2

    POST

  • jitter

    9472

  • polling_time

    30000

  • port_number

    443

  • sc_process32

    %windir%\syswow64\runonce.exe

  • sc_process64

    %windir%\sysnative\runonce.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCwG1R55+sOREfylofqBeaqAvF24HTL2Zygd7+BdNUEql/sCXhTpUVcXJUaxSDZvZkozlmta5SxWWMUKiGlzWeXO41sFUL5wo3LGr8BTn+YEdQ3AW8e42ZTNsqAXbAxRUQNhAyYakslZs9N8LMr1S7sqkNnghIJIxh/+o3ZHQ0kHwIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    3.03243264e+08

  • unknown2

    AAAABAAAAAEAAAglAAAAAgAACCUAAAACAAACyAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • uri

    /ajax/recharge/recharge.json

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4044.62 Safari/537.36

  • watermark

    391144938

Targets

    • Target

      cc94f49acdd8741c94263ec4d79b3cf929ae811cd12802c960e4eedb74581bc8

    • Size

      1.5MB

    • MD5

      6af1015805cee45d24566eee7431103c

    • SHA1

      e4b02689e876cf59a0b93fa9b32d410fd89b4cea

    • SHA256

      cc94f49acdd8741c94263ec4d79b3cf929ae811cd12802c960e4eedb74581bc8

    • SHA512

      fa6555e53a9ba85747d3926de2fdc7e132635597c75b4e7f7004917eb6ff7cfa50d4c0c71a978582153584c0615bdfefbcaef151a83abce2a0470baec94411a7

    • SSDEEP

      24576:I062cSEk8zN/E/F7KcdIw+80zIGwTxgLUX6JyzARFErCX1maX5Vwn9+P7k9:r6PaFF7KcdIw+8UPyaLUXe/bI9

    Score
    10/10
    cobaltstrike391144938backdoortrojan

    • Cobaltstrike

      Detected malicious payload which is part of Cobaltstrike.

      trojanbackdoorcobaltstrike

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks