cobaltstrike | b471ee5e875003b428faf848e504643e10187b7fb6f95be55010060538add906

General

Target

b471ee5e875003b428faf848e504643e10187b7fb6f95be55010060538add906.exe
Size

48KB
MD5

c88cd660c9814edb7573b69b02db3ba3
SHA1

34ced1c3603badcf4ffddc97621fe4810f4f0807
SHA256

b471ee5e875003b428faf848e504643e10187b7fb6f95be55010060538add906
SHA512

6ba69d96d868a151a882e3175951d48bda63b2e1bb71f7a9d7ded129cbb6b4eefb877bc88938baad27577b738766730c140c3136c4a428c3c614cfb99d45fc06
SSDEEP

768:ndV0MxpFjIRc7Yu+4O36YO+eNfcF4Soker6qQ4HyWOPHxT+scX2v:ndV0MssVPYOjNfcqJgqxOZcG

Score

10^/10

cobaltstrike 0 100000 backdoor trojan

Malware Config

Extracted

Family

cobaltstrike

C2

http://78.141.230.99:443/FtPS

Attributes

user_agent
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0)

Extracted

Family

cobaltstrike

Botnet

0

Attributes

watermark
0

Extracted

Family

cobaltstrike

Botnet

100000

C2

http://78.141.230.99:443/dot.gif

Attributes

access_type
512
beacon_type
2048
host
78.141.230.99,/dot.gif
http_header1
AAAABwAAAAAAAAADAAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
http_header2
AAAACgAAACZDb250ZW50LVR5cGU6IGFwcGxpY2F0aW9uL29jdGV0LXN0cmVhbQAAAAcAAAAAAAAABQAAAAJpZAAAAAcAAAABAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
http_method1
GET
http_method2
POST
polling_time
60000
port_number
443
sc_process32
%windir%\syswow64\rundll32.exe
sc_process64
%windir%\sysnative\rundll32.exe
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDDohWpPN9dK5Iaq3j5MARwhwXxMD+LZJY92SEg755tH3cbGJDwjAjae+Cq14PUO5w33EpPbdmLoEfwZmXv2Zz/AYj0O8mNmRw35sEPhPXGKj1Snqz4qS1EVBYgJOSMLEUCg7LBwHQtvsGnoZjszjkVqf9Hi9INcnBF8qLyh4JrKQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
unknown1
4096
unknown2
AAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
uri
/submit.php
user_agent
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0)
watermark
100000

Signatures

Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
trojan backdoor cobaltstrike
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

cmd.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Control Panel\International\Geo\Nation cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Control Panel\International\Geo\Nation	cmd.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\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3596 EXCEL.EXE
Suspicious use of SetWindowsHookEx 9 IoCs

Processes:

EXCEL.EXE

pid process

3596 EXCEL.EXE
3596 EXCEL.EXE
3596 EXCEL.EXE
3596 EXCEL.EXE
3596 EXCEL.EXE
3596 EXCEL.EXE
3596 EXCEL.EXE
3596 EXCEL.EXE
3596 EXCEL.EXE

pid	process
3596	EXCEL.EXE

pid	process
3596	EXCEL.EXE
3596	EXCEL.EXE
3596	EXCEL.EXE
3596	EXCEL.EXE
3596	EXCEL.EXE
3596	EXCEL.EXE
3596	EXCEL.EXE
3596	EXCEL.EXE
3596	EXCEL.EXE

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

b471ee5e875003b428faf848e504643e10187b7fb6f95be55010060538add906.execmd.exe

description	pid	process	target process
PID 4764 wrote to memory of 2344	4764	b471ee5e875003b428faf848e504643e10187b7fb6f95be55010060538add906.exe	cmd.exe
PID 4764 wrote to memory of 2344	4764	b471ee5e875003b428faf848e504643e10187b7fb6f95be55010060538add906.exe	cmd.exe
PID 2344 wrote to memory of 3596	2344	cmd.exe	EXCEL.EXE
PID 2344 wrote to memory of 3596	2344	cmd.exe	EXCEL.EXE
PID 2344 wrote to memory of 3596	2344	cmd.exe	EXCEL.EXE

C:\Users\Admin\AppData\Local\Temp\b471ee5e875003b428faf848e504643e10187b7fb6f95be55010060538add906.exe
"C:\Users\Admin\AppData\Local\Temp\b471ee5e875003b428faf848e504643e10187b7fb6f95be55010060538add906.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4764

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c start excel.exe Èý·½ÈËÍ³¼ÆÄ£°å-20232202.xlsx
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2344

C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE" Èý·½ÈËÍ³¼ÆÄ£°å-20232202.xlsx
3⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3596

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/3596-20-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-56-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-2-0x00007FF893BF0000-0x00007FF893C00000-memory.dmp

Filesize
64KB

Download
memory/3596-3-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-5-0x00007FF893BF0000-0x00007FF893C00000-memory.dmp

Filesize
64KB

Download
memory/3596-7-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-6-0x00007FF893BF0000-0x00007FF893C00000-memory.dmp

Filesize
64KB

Download
memory/3596-4-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-8-0x00007FF893BF0000-0x00007FF893C00000-memory.dmp

Filesize
64KB

Download
memory/3596-10-0x00007FF893BF0000-0x00007FF893C00000-memory.dmp

Filesize
64KB

Download
memory/3596-9-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-11-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-12-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-22-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-14-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-17-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-18-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-19-0x00007FF891B90000-0x00007FF891BA0000-memory.dmp

Filesize
64KB

Download
memory/3596-57-0x00007FF893BF0000-0x00007FF893C00000-memory.dmp

Filesize
64KB

Download
memory/3596-59-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-13-0x00007FF891B90000-0x00007FF891BA0000-memory.dmp

Filesize
64KB

Download
memory/3596-23-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-24-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-58-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-26-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-55-0x00007FF893BF0000-0x00007FF893C00000-memory.dmp

Filesize
64KB

Download
memory/3596-34-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-35-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-36-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-54-0x00007FF893BF0000-0x00007FF893C00000-memory.dmp

Filesize
64KB

Download
memory/3596-38-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-21-0x00007FF8D3B70000-0x00007FF8D3D65000-memory.dmp

Filesize
2.0MB

Download
memory/3596-53-0x00007FF893BF0000-0x00007FF893C00000-memory.dmp

Filesize
64KB

Download
memory/4764-42-0x00007FF6B5FF0000-0x00007FF6B6000000-memory.dmp

Filesize
64KB

Download
memory/4764-37-0x0000020BE9100000-0x0000020BE914F000-memory.dmp

Filesize
316KB

Download
memory/4764-27-0x0000020BEAF70000-0x0000020BEB370000-memory.dmp

Filesize
4.0MB

Download
memory/4764-25-0x0000020BE9100000-0x0000020BE914F000-memory.dmp

Filesize
316KB

Download
memory/4764-0-0x00007FF6B5FF0000-0x00007FF6B6000000-memory.dmp

Filesize
64KB

Download
memory/4764-1-0x0000020BE8EC0000-0x0000020BE8EC1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads