cobaltstrike | cd8256d1c896a8de9ccf50e26f97106295f4e664aef6ba3ee0883420c01ac374

General

Target

cd8256d1c896a8de9ccf50e26f97106295f4e664aef6ba3ee0883420c01ac374.exe
Size

3.1MB
MD5

4b4626d154babe5370a8abd40bbba3bf
SHA1

bd95458097dd348e3cffaf9a4b7c06d995b9c7a7
SHA256

cd8256d1c896a8de9ccf50e26f97106295f4e664aef6ba3ee0883420c01ac374
SHA512

31124ad7e75141de952961ac1071eba4edae4a6c4e9a3c394240f02da89d9edc3690ab78ee8e8c28897cd3e9564a6f595f88e8044236d1753fd27286a453b40c
SSDEEP

49152:JX9cawE0UluIMwbS6YL5hbBVWrLiUQti3Uq:N6NE0UljMAMBVCr

Score

10^/10

cobaltstrike 305419896 backdoor trojan

Malware Config

Extracted

Family

cobaltstrike

Botnet

305419896

C2

http://149.28.73.211:8443/process.jsp

Attributes

access_type
512
beacon_type
2048
host
149.28.73.211,/process.jsp
http_header1
AAAACgAAABZDb25uZWN0aW9uOiBLZWVwLUFsaXZlAAAACgAAABdDYWNoZS1Db250cm9sOiBuby1jYWNoZQAAAAcAAAAAAAAACwAAAAUAAAACbW4AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
http_header2
AAAACgAAABZDb25uZWN0aW9uOiBLZWVwLUFsaXZlAAAACgAAABdDYWNoZS1Db250cm9sOiBuby1jYWNoZQAAAAcAAAAAAAAACAAAAAUAAAACZHUAAAAHAAAAAQAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
http_method1
GET
http_method2
POST
jitter
3840
maxdns
255
polling_time
25000
port_number
8443
sc_process32
%windir%\syswow64\rundll32.exe
sc_process64
%windir%\sysnative\rundll32.exe
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDx6CojZ4HD1cRO0eEMl+ZXxKdwHSKG2+K81Uk9Lh6wXMJLWaT/+49SKcvn0DxQ5oPMhf+JAHldKyofIhNL53l1f35ePITzWiKPVFcvgFWpzHl2Cnilu8YWwXOsEe7348AKdGeahD9w5nCqxyNF8FlLOPl14n4YgnKJMj+xf7kGswIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
unknown1
3.327464704e+09
unknown2
AAAABAAAAAEAAAAIAAAAAQAAAAgAAAABAAAACgAAAAIAAAA2AAAAAgAAAA8AAAACAAAABwAAAAIAAAAIAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
uri
/submit.jsp
user_agent
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)
watermark
305419896

Signatures

Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
trojan backdoor cobaltstrike
Executes dropped EXE 1 IoCs

Processes:

go-memexec-426679491.exe

pid process

928 go-memexec-426679491.exe

pid	process
928	go-memexec-426679491.exe

Loads dropped DLL 2 IoCs

Processes:

cd8256d1c896a8de9ccf50e26f97106295f4e664aef6ba3ee0883420c01ac374.exe

pid	process
2036	cd8256d1c896a8de9ccf50e26f97106295f4e664aef6ba3ee0883420c01ac374.exe
2036	cd8256d1c896a8de9ccf50e26f97106295f4e664aef6ba3ee0883420c01ac374.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

cd8256d1c896a8de9ccf50e26f97106295f4e664aef6ba3ee0883420c01ac374.exe

description	pid	process	target process
PID 2036 wrote to memory of 928	2036	cd8256d1c896a8de9ccf50e26f97106295f4e664aef6ba3ee0883420c01ac374.exe	go-memexec-426679491.exe
PID 2036 wrote to memory of 928	2036	cd8256d1c896a8de9ccf50e26f97106295f4e664aef6ba3ee0883420c01ac374.exe	go-memexec-426679491.exe
PID 2036 wrote to memory of 928	2036	cd8256d1c896a8de9ccf50e26f97106295f4e664aef6ba3ee0883420c01ac374.exe	go-memexec-426679491.exe

C:\Users\Admin\AppData\Local\Temp\cd8256d1c896a8de9ccf50e26f97106295f4e664aef6ba3ee0883420c01ac374.exe
"C:\Users\Admin\AppData\Local\Temp\cd8256d1c896a8de9ccf50e26f97106295f4e664aef6ba3ee0883420c01ac374.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2036

C:\Users\Admin\AppData\Local\Temp\go-memexec-426679491.exe
C:\Users\Admin\AppData\Local\Temp\go-memexec-426679491.exe
2⤵
- Executes dropped EXE
PID:928

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\go-memexec-426679491.exe
Filesize
281KB

MD5
1031a6376f372fdb60564050796eb393

SHA1
ba7f574841d76cab97f7115b1cb1e3b3b8fc5135

SHA256
f42a8f8f1c3728d01ae98d35c3ff93190c1384542cfc22919b851412febc16ad

SHA512
6f66660bb4cd283d8c7b544fbb4cd78878a39b7c315ab9373037eb76dfee7303ff1cac88d45f2f1bf8c5c476e3955dcb68d55a7fb96e70528caabd7cd0796d47

Download Submit
\Users\Admin\AppData\Local\Temp\go-memexec-426679491.exe
Filesize
281KB

MD5
1031a6376f372fdb60564050796eb393

SHA1
ba7f574841d76cab97f7115b1cb1e3b3b8fc5135

SHA256
f42a8f8f1c3728d01ae98d35c3ff93190c1384542cfc22919b851412febc16ad

SHA512
6f66660bb4cd283d8c7b544fbb4cd78878a39b7c315ab9373037eb76dfee7303ff1cac88d45f2f1bf8c5c476e3955dcb68d55a7fb96e70528caabd7cd0796d47

Download Submit
\Users\Admin\AppData\Local\Temp\go-memexec-426679491.exe
Filesize
281KB

MD5
1031a6376f372fdb60564050796eb393

SHA1
ba7f574841d76cab97f7115b1cb1e3b3b8fc5135

SHA256
f42a8f8f1c3728d01ae98d35c3ff93190c1384542cfc22919b851412febc16ad

SHA512
6f66660bb4cd283d8c7b544fbb4cd78878a39b7c315ab9373037eb76dfee7303ff1cac88d45f2f1bf8c5c476e3955dcb68d55a7fb96e70528caabd7cd0796d47

Download Submit
memory/928-61-0x00000000002C0000-0x0000000000300000-memory.dmp

Filesize
256KB

Download
memory/928-62-0x0000000000300000-0x000000000034C000-memory.dmp

Filesize
304KB

Download
memory/928-63-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing