cobaltstrike | 751b8ab3828a9f3a67d511c8b376cffa895807a7ea39e4e98cc9bec04f06949a

Analysis

max time kernel
120s
max time network
132s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
16-08-2023 06:49

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General

Target

4.exe
Size

2.6MB
MD5

a14a70c9382dafae8082b96692fb6126
SHA1

703b869b3d102c18bc1ea7f8ebe9732049cbd710
SHA256

7a54e2ff0dd51979498b05c96e134b5e08bfa3a6c470c31590b6dfb7467e9ea4
SHA512

e72a8731ab0a9ea180a8b9c00d3d015a18a28434daec01a365fb47ef906ce3c8f7e03dda133769204f4b387f1eae882d3ff541d6d4566e66e26f3c6dd3b5d532
SSDEEP

49152:sylqBU83Orb/TKvO90d7HjmAFd4A64nsfJ2U4OOiTXg4tpqbCAb1qQz7eVJiyvpE:Y3MJQuVJws

Score

10^/10

cobaltstrike 391144938 backdoor trojan

Malware Config

Extracted

Family

cobaltstrike

Botnet

391144938

http://ngcdn010.cnr.cn:443/dist/css/bootstrap.min.css

Attributes

access_type
512
beacon_type
2048
host
ngcdn010.cnr.cn,/dist/css/bootstrap.min.css
http_header1
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
http_header2
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
http_method1
POST
http_method2
POST
jitter
9472
polling_time
10000
port_number
443
sc_process32
%windir%\syswow64\svchost.exe -k netsvcs
sc_process64
%windir%\sysnative\svchost.exe -k netsvcs
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCKcWx/iIALKK+Wqxrt0P8S4XJtcRnSAf5fAQwMxEIGOYvVt8Tq78HkENt9asoKfJRmt5JW1EB3rAiP1oJ/ZNapQHEP1bgG8lxwp1UPeqqySUJfA03aR4Tx2e/S3fou3yageDPjW3MjI2h0mHAbvYbB2dXXsX10eC8EWXhsAHaqdQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
unknown1
3.462927616e+09
unknown2
AAAABAAAAAEAAAAtAAAAAQAABsMAAAACAAAAFAAAAAIAAAA1AAAAAgAAACwAAAACAAAAJAAAAAIAAABLAAAAAgAAC6IAAAADAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
uri
/dist/js/bootstrap.bundle.min.js
user_agent
Mozilla/5.0 (X11; U; Linux x86_64; en-us) AppleWebKit/531.2+ (KHTML, like Gecko) Version/5.0 Safari/531.2+
watermark
391144938

Signatures

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

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

4.exe

description	pid	process	target process
PID 1432 wrote to memory of 2596	1432	4.exe	explorer.exe
PID 1432 wrote to memory of 2596	1432	4.exe	explorer.exe
PID 1432 wrote to memory of 2596	1432	4.exe	explorer.exe
PID 1432 wrote to memory of 2596	1432	4.exe	explorer.exe

C:\Users\Admin\AppData\Local\Temp\4.exe
"C:\Users\Admin\AppData\Local\Temp\4.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1432

\??\c:\windows\explorer.exe
"c:\windows\explorer.exe"
2⤵
PID:2596

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2596-54-0x00000000000E0000-0x0000000000124000-memory.dmp

Filesize
272KB

Download
memory/2596-55-0x00000000000E0000-0x0000000000124000-memory.dmp

Filesize
272KB

Download