cobaltstrike | 6cf0a44011ec1e1a891d7d06357c4687634e42d65a3eecfe9180e608b5d6e150

General

Target

case#_139739537_445143708.xls
Size

124KB
MD5

2739a59d758db92aafa95fa723456172
SHA1

5466fe009cf7ee11393085ebd99c16963d49eb0a
SHA256

6cf0a44011ec1e1a891d7d06357c4687634e42d65a3eecfe9180e608b5d6e150
SHA512

34a1ab6d936cad32599b367011aad3bc8635d1efc50e68b5b621d35d736465105dba88d97aab19120d759431bcf29d13f504e29ec673e19d430dae03d20f8839

Score

10^/10

cobaltstrike backdoor trojan

Malware Config

Extracted

Family

cobaltstrike

Version

windows/download_exec

C2

http://onealabamasport.com:443/jquery-3.3.2.slim.min.js

Extracted

Family

cobaltstrike

C2

http://onealabamasport.com:443/jquery-3.3.1.min.js

Attributes

access_type
512
beacon_type
2048
create_remote_thread
0
day
0
dns_idle
0
dns_sleep
0
host
onealabamasport.com,/jquery-3.3.1.min.js
http_header1
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
http_header2
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
http_method1
GET
http_method2
POST
injection_process
jitter
9472
maxdns
0
month
0
pipe_name
polling_time
45000
port_number
443
proxy_password
proxy_server
proxy_username
sc_process32
%windir%\syswow64\dllhost.exe
sc_process64
%windir%\sysnative\dllhost.exe
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCf4gNTnzZ4+9MF9UkJQFkFQgxyXLhTwXuE0sbPtREOdvhF44r8fMz3PbOqi5s+JWXzvvkWnT3nNSTfUGMlenINuXt1ESEbl1P152lszbjhsJRVhh7tuStm3IY8GP2EY0iNXBGur1a02lFdMdoVT6ltnIHCxh/GQrvp+dLO8bkw0QIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
unknown1
4.234810624e+09
unknown2
AAAABAAAAAEAAAXyAAAAAgAAAFQAAAACAAAPWwAAAA0AAAAPAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
unknown3
0
unknown4
0
unknown5
1.841236305e+09
uri
/jquery-3.3.2.min.js
user_agent
Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko
year
0

Signatures

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

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

rundll32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3100	3000	rundll32.exe	EXCEL.EXE

Blocklisted process makes network request 5 IoCs

Processes:

rundll32.exe

flow pid process

29 3100 rundll32.exe
30 3100 rundll32.exe
47 3100 rundll32.exe
48 3100 rundll32.exe
49 3100 rundll32.exe
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

3100 rundll32.exe

flow	pid	process
29	3100	rundll32.exe
30	3100	rundll32.exe
47	3100	rundll32.exe
48	3100	rundll32.exe
49	3100	rundll32.exe

pid	process
3100	rundll32.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:

EXCEL.EXE

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

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3000 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3000	EXCEL.EXE
3000	EXCEL.EXE
3000	EXCEL.EXE
3000	EXCEL.EXE
3000	EXCEL.EXE
3000	EXCEL.EXE
3000	EXCEL.EXE
3000	EXCEL.EXE
3000	EXCEL.EXE
3000	EXCEL.EXE
3000	EXCEL.EXE
3000	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3000 wrote to memory of 3100	3000	EXCEL.EXE	rundll32.exe
PID 3000 wrote to memory of 3100	3000	EXCEL.EXE	rundll32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\case#_139739537_445143708.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3000

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\svh.osts,DllRegisterServer1
2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Loads dropped DLL
PID:3100

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\svh.osts
MD5
71032e98341065c93f38a226de74d7a0

SHA1
0d14adb6758998182b644e9f93e04117ba7457ee

SHA256
132bdcb986e3e3b9599b5b293b3318e7c630495e87a9d1fa02287ae80f9e652f

SHA512
0d250ec7f59e821972578d4577bab938af4a318d62aff840d361a89712d0c55f507ba8c9a72b586f51fbfd41a06692ee9efbaa4d43f93997306ced2711d70902

Download Submit
\Users\Admin\svh.osts
MD5
71032e98341065c93f38a226de74d7a0

SHA1
0d14adb6758998182b644e9f93e04117ba7457ee

SHA256
132bdcb986e3e3b9599b5b293b3318e7c630495e87a9d1fa02287ae80f9e652f

SHA512
0d250ec7f59e821972578d4577bab938af4a318d62aff840d361a89712d0c55f507ba8c9a72b586f51fbfd41a06692ee9efbaa4d43f93997306ced2711d70902

Download Submit
memory/3000-2-0x00007FFC7E0E0000-0x00007FFC7E0F0000-memory.dmp

Filesize
64KB

Download
memory/3000-3-0x00007FFC7E0E0000-0x00007FFC7E0F0000-memory.dmp

Filesize
64KB

Download
memory/3000-4-0x00007FFC7E0E0000-0x00007FFC7E0F0000-memory.dmp

Filesize
64KB

Download
memory/3000-5-0x00007FFCA0C20000-0x00007FFCA1257000-memory.dmp

Filesize
6.2MB

Download
memory/3000-6-0x00007FFC7E0E0000-0x00007FFC7E0F0000-memory.dmp

Filesize
64KB

Download
memory/3100-7-0x0000000000000000-mapping.dmp

Download
memory/3100-10-0x0000016BFC4F0000-0x0000016BFC4F1000-memory.dmp

Filesize
4KB

Download
memory/3100-12-0x0000016BFE210000-0x0000016BFE610000-memory.dmp

Filesize
4.0MB

Download
memory/3100-11-0x0000016BFE610000-0x0000016BFEA82000-memory.dmp

Filesize
4.4MB

Download
memory/3100-13-0x0000016BFE610000-0x0000016BFEA82000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads