cobaltstrike | 295fed0d36a76d8473a2b5ad22548b3264f0f72ed410105b05bdaae1cde0de5d

Analysis

max time kernel
146s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
26-10-2023 06:02

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General

Target

295fed0d36a76d8473a2b5ad22548b3264f0f72ed410105b05bdaae1cde0de5d.dll
Size

271KB
MD5

fa7d98ef21b82974207437ba36d1125a
SHA1

d14b875d28762852460c6bc941d4f0f0209bdb30
SHA256

295fed0d36a76d8473a2b5ad22548b3264f0f72ed410105b05bdaae1cde0de5d
SHA512

e55e25c05755b60722982fcfbdd5952e753839e0701f763f353225d1bdbe044eede5522ed72c9114d0e37996d9f9437fc7449e7cdf53f72763058a0d49054201
SSDEEP

6144:MEzp4qIDRd6EqFmcCBk9LHZEPSZ/Of626BioBRXFsjf3FOUXzsezZOi:1zp4qIDqRi8ZEatP26BzzU

Score

10^/10

cobaltstrike 100000 backdoor trojan

Malware Config

Extracted

Family

cobaltstrike

Botnet

100000

http://43.138.44.158:15999/socialapiVersion=1.1

Attributes

access_type
512
host
43.138.44.158,/socialapiVersion=1.1
http_header1
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
http_header2
AAAACgAAAEdBY2NlcHQ6IHRleHQvaHRtbCxhcHBsaWNhdGlvbi94aHRtbCt4bWwsYXBwbGljYXRpb24veG1sO3E9MC45LCovKjtxPTAuOAAAABAAAAAVSG9zdDogY2RuLmJvb3Rjc3MuY29tAAAACgAAACBSZWZlcmVyOiBodHRwOi8vY2RuLmJvb3Rjc3MuY29tLwAAAAoAAAAeQWNjZXB0LUVuY29kaW5nOiBnemlwLCBkZWZsYXRlAAAABwAAAAAAAAAPAAAADQAAAAUAAAAEZXRhZwAAAAcAAAABAAAADwAAAA0AAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
http_method1
GET
http_method2
POST
jitter
9472
polling_time
30000
port_number
15999
sc_process32
%windir%\syswow64\runonce.exe
sc_process64
%windir%\sysnative\runonce.exe
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCDNXFfUSnRiMrus01oooCz6LOvdmjEE+7t+6lWJPjRacCsjD36xkeHkaQzYHqBIcp+IjzNOQWAkZeqSKWsWAdUzYDFb4JxRk+REfYtFkqJdO6vJYr9HeSBbcvIVifI4mnpePP5LjtfV9x8AHu1EGqJVJ6LIkucf4QWdZlyxuV5pQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
unknown1
2.657621248e+09
unknown2
AAAABAAAAAEAAAdZAAAAAgAAB/IAAAACAAAD+AAAAA0AAAAPAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
uri
/socialapiVersion=2.0&include_base=true
user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4044.62 Safari/537.26
watermark
100000

Signatures

Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
trojan backdoor cobaltstrike
Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 4100 set thread context of 3492 4100 rundll32.exe notepad.exe

description	pid	process	target process
PID 4100 set thread context of 3492	4100	rundll32.exe	notepad.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4100 wrote to memory of 3492	4100	rundll32.exe	notepad.exe
PID 4100 wrote to memory of 3492	4100	rundll32.exe	notepad.exe
PID 4100 wrote to memory of 3492	4100	rundll32.exe	notepad.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\295fed0d36a76d8473a2b5ad22548b3264f0f72ed410105b05bdaae1cde0de5d.dll,#1
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4100

C:\Windows\system32\notepad.exe
notepad.exe
2⤵
PID:3492

Network

MITRE ATT&CK Matrix

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Downloads

memory/3492-0-0x00000131CC370000-0x00000131CC3B1000-memory.dmp

Filesize
260KB

Download
memory/3492-1-0x00007FFC6F030000-0x00007FFC6F0FD000-memory.dmp

Filesize
820KB

Download