cobaltstrike | 055672abeb2d5018279ea2ad039bfa752c1f8333c065e3830ba61b17a65f3731

Analysis

max time kernel
142s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
05-07-2023 13:24

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General

Target

055672abeb2d5018279ea2ad0.exe
Size

281KB
MD5

b8d4b10821e714302d6fc60092934dc5
SHA1

2db84283f01f4df9928dd0aceb99a87086ed6a5b
SHA256

055672abeb2d5018279ea2ad039bfa752c1f8333c065e3830ba61b17a65f3731
SHA512

04e206c74cc900d72912c2bb77ae917cda81e2ba41b3d93f155e0000ac53295a13d78080f0c326bd48899d4ce0879c6e47aca5631c4a3b5b1041217097d8ad68
SSDEEP

6144:KC/cLq32VKR2ooP9Y/vgm78sE9assSXs72qrhNPAB:tcLq3QYHX78BzqI

Score

10^/10

cobaltstrike 1359593325 backdoor trojan

Malware Config

Extracted

Family

cobaltstrike

Botnet

1359593325

http://yellow-mountain-cb5f.pza3-bdcb3s.workers.dev:443/jquery-3.3.1.min.js

Attributes

access_type
512
beacon_type
2048
host
yellow-mountain-cb5f.pza3-bdcb3s.workers.dev,/jquery-3.3.1.min.js
http_header1
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
http_header2
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
http_method1
GET
http_method2
POST
jitter
9472
polling_time
45000
port_number
443
sc_process32
%windir%\syswow64\dllhost.exe
sc_process64
%windir%\sysnative\dllhost.exe
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCYculBeZmrbMS1tUHgTa52vQn/jGzbJuxK3983bRJiS0d0xvEEpjfJ2NEtptZBL9yhhf8IIwbMBDqJj4fuVvUsHrQ26Zkxv0KrEuuIo60BUZ43Fcvi1VF555t4NL1wMOMPoz9NcxpSJ1Z+Am4vlaGTSg/Fxx6/0/Mh+UQMcZYvOwIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
unknown1
4.234810624e+09
unknown2
AAAABAAAAAEAAAXyAAAAAgAAAFQAAAACAAAPWwAAAA0AAAAPAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
uri
/jquery-3.3.2.min.js
user_agent
Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko
watermark
1359593325

Signatures

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

Drops file in System32 directory 1 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{902AA74E-DF00-4418-B1AF-0B4BF59E90D6}.catalogItem	svchost.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\055672abeb2d5018279ea2ad0.exe
"C:\Users\Admin\AppData\Local\Temp\055672abeb2d5018279ea2ad0.exe"
1⤵
PID:2852

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:2820

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2852-133-0x00000000001C0000-0x0000000000200000-memory.dmp

Filesize
256KB

Download
memory/2852-134-0x0000000000C50000-0x00000000010C2000-memory.dmp

Filesize
4.4MB

Download
memory/2852-135-0x0000000000C50000-0x00000000010C2000-memory.dmp

Filesize
4.4MB

Download
memory/2852-136-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download