cobaltstrike | 1cf5710e500a423b84b51fa3afdd923fe0a8255c5817d3238175623e2ebbfad9

General

Target

1cf5710e500a423b84b51fa3afdd923fe0a8255c5817d3238175623e2ebbfad9.dll
Size

688KB
MD5

a91bf61cc18705be2288a0f6f125068f
SHA1

d535de08875cef1c49bfa2532281fa1254a8cb93
SHA256

1cf5710e500a423b84b51fa3afdd923fe0a8255c5817d3238175623e2ebbfad9
SHA512

a7c9a05f0d1a2b868ec608ac4dc116fd79fb36728bc4f371e9eab3cadb869b6ac53dd97cbf64a7d18ce237430cdd08f64ebab7b68ac39f3bf486d772be3a96dc

Score

10^/10

cobaltstrike backdoor trojan

Malware Config

Extracted

Family

cobaltstrike

Attributes

access_type
0
beacon_type
0
create_remote_thread
0
day
0
dns_idle
0
dns_sleep
0
host
http_header1
http_header2
http_method1
http_method2
injection_process
jitter
0
maxdns
0
month
0
pipe_name
polling_time
0
port_number
0
proxy_password
proxy_server
proxy_username
sc_process32
sc_process64
state_machine
unknown1
0
unknown2
unknown3
0
unknown4
0
unknown5
0
uri
user_agent
year
0

Signatures

Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
trojan backdoor cobaltstrike
Blocklisted process makes network request 6 IoCs

Processes:

rundll32.exe

flow pid process

6 776 rundll32.exe
7 776 rundll32.exe
8 776 rundll32.exe
9 776 rundll32.exe
10 776 rundll32.exe
11 776 rundll32.exe

flow	pid	process
6	776	rundll32.exe
7	776	rundll32.exe
8	776	rundll32.exe
9	776	rundll32.exe
10	776	rundll32.exe
11	776	rundll32.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13	rundll32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1cf5710e500a423b84b51fa3afdd923fe0a8255c5817d3238175623e2ebbfad9.dll,#1
1⤵
- Blocklisted process makes network request
- Modifies system certificate store
PID:776

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

1

T1130

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/776-2-0x000007FEF5760000-0x000007FEF614C000-memory.dmp

Filesize
9.9MB

Download
memory/776-3-0x000000001ABF0000-0x000000001ABF1000-memory.dmp

Filesize
4KB

Download
memory/776-5-0x0000000001C10000-0x0000000001C50000-memory.dmp

Filesize
256KB

Download
memory/776-6-0x0000000002060000-0x00000000020D1000-memory.dmp

Filesize
452KB

Download

Analysis

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