cobaltstrike | 41f8654c27216e964e02d82f79c22cbcf47189edeee3e17e8113c479af85d361

Analysis

max time kernel
150s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
02-11-2023 21:36

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General

Target

41f8654c27216e964e02d82f79c22cbcf47189edeee3e17e8113c479af85d361.exe
Size

202KB
MD5

47806fcfa5612f144f4be4557fbaa842
SHA1

0a323aba9a3784ac9d21d3b87e9ad47aad8d1729
SHA256

41f8654c27216e964e02d82f79c22cbcf47189edeee3e17e8113c479af85d361
SHA512

cfadc3bd99c6d3578fb98ac02312046966d815a1a602a51270da624be00b85a6fd4c67e7b5eabeb7793e10d40c03a49dda211ad7ef570bd73273b99954a316f1
SSDEEP

6144:ZV68YUc3lMTW/ReCdNv1oS8lMSD8rPcJJJ655ZZoM8:rzYUc3CMResN64

Score

10^/10

cobaltstrike 100000 backdoor trojan

Malware Config

Extracted

Family

cobaltstrike

Botnet

100000

http://service-b7eqj21z-1259409518.bj.apigw.tencentcs.com:443/api/x

Attributes

access_type
512
beacon_type
2048
host
service-b7eqj21z-1259409518.bj.apigw.tencentcs.com,/api/x
http_header1
AAAACgAAAAtBY2NlcHQ6ICovKgAAAAcAAAAAAAAAAwAAAAIAAAAKU0VTU0lPTklEPQAAAAYAAAAGQ29va2llAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
http_header2
AAAACgAAAAtBY2NlcHQ6ICovKgAAAAcAAAAAAAAAAwAAAAIAAAAJSlNFU1NJT049AAAABgAAAAZDb29raWUAAAAHAAAAAQAAAAMAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
http_method1
GET
http_method2
POST
polling_time
3000
port_number
443
sc_process32
%windir%\syswow64\rundll32.exe
sc_process64
%windir%\sysnative\rundll32.exe
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCB2VdRkr0U8Qqq83EFvttT0qsdaxDQgPh5T57Q5fX0Je2sAHx1pCZ+EOS3eM7Gxa8koQz1MC5M+zyRhI7bwblsdAYQeB8a1gwIoTCpBG2l+RLQxv0iY9pFZ1mmmF8+kJkAoBHFUjd0ZrhQ+gVRjEtWx03q9gsqMt+Sx9oxBUNgNQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
unknown1
1.481970944e+09
unknown2
AAAABAAAAAMAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
uri
/api/y
user_agent
Mozilla/5.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/5.0)
watermark
100000

Signatures

Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
trojan backdoor cobaltstrike

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

41f8654c27216e964e02d82f79c22cbcf47189edeee3e17e8113c479af85d361.exe

description	pid	process	target process
PID 2188 wrote to memory of 2300	2188	41f8654c27216e964e02d82f79c22cbcf47189edeee3e17e8113c479af85d361.exe	notepad.exe
PID 2188 wrote to memory of 2300	2188	41f8654c27216e964e02d82f79c22cbcf47189edeee3e17e8113c479af85d361.exe	notepad.exe
PID 2188 wrote to memory of 2300	2188	41f8654c27216e964e02d82f79c22cbcf47189edeee3e17e8113c479af85d361.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\41f8654c27216e964e02d82f79c22cbcf47189edeee3e17e8113c479af85d361.exe
"C:\Users\Admin\AppData\Local\Temp\41f8654c27216e964e02d82f79c22cbcf47189edeee3e17e8113c479af85d361.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2188
- \??\c:\windows\system32\notepad.exe
  c:\windows\system32\notepad.exe
  2⤵
  PID:2300

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2188-0-0x00007FF705300000-0x00007FF70533B000-memory.dmp

Filesize
236KB

Download
memory/2300-1-0x000001EF2EA70000-0x000001EF2EE70000-memory.dmp

Filesize
4.0MB

Download
memory/2300-2-0x000001EF2EE70000-0x000001EF2EEBF000-memory.dmp

Filesize
316KB

Download
memory/2300-3-0x000001EF2EE70000-0x000001EF2EEBF000-memory.dmp

Filesize
316KB

Download