cobaltstrike | eb04cb22cca9a31dbcc6495e692a0f5e2a50e7e6912182c3de01517d3b4a59a6

Resubmissions

20-07-2023 02:57

230720-dfnxeach9s 10

22-03-2023 14:36

230322-ryxtxsbc3y 10

Analysis

max time kernel
145s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
22-03-2023 14:36

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General

Target

顺丰2023年4月裁员名单/2023年4月裁员人员名单.doc.lnk
Size

1KB
MD5

c4273f81b467411ecf04f3d738ce7d46
SHA1

dbf01e0b38962457605f2ca6a0fe6cb0796606be
SHA256

223aa57937a946d01b70ee4d5be7862edf7923a8f8b8fbb2cbecfd836d786533
SHA512

69115a4d18cfea01a41adffae2d81a7be1bc65abf14f2b0cf16d99a00c60c3f6f71b2a48f9bcfe9736b6998b0cf0b893d2fdf510cccf3a08d14025cc23179304

Score

10^/10

cobaltstrike 100000 backdoor trojan

Malware Config

Extracted

Family

cobaltstrike

Botnet

100000

http://bsupport.huawei.com:80/audiencemanager.js

Attributes

access_type
512
host
bsupport.huawei.com,/audiencemanager.js
http_header1
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
http_header2
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
http_method1
GET
http_method2
POST
jitter
9472
polling_time
30000
port_number
80
sc_process32
%windir%\syswow64\runonce.exe
sc_process64
%windir%\sysnative\runonce.exe
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCEhSlSrqe08fqi2sm/HDDQ/TULIO/SwoS+x4kBoCzrWo49EzP4g4IiU4V9blbEBfc48fOrI7vVMRHBnnibaOsgAgnfzQ7n2/jw3af65qHQSOgbt8SSfs36WfCbzPKMc1tGpgiqYG+hAFGu/snKl0iZSddRLL8csTaipueoauIGWQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
unknown1
1.435374848e+09
unknown2
AAAABAAAAAEAAAf+AAAAAgAAIUwAAAACAAAPtQAAAA0AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
uri
/audiencemanager-v2.js
user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4044.62 Safari/537.36
watermark
100000

Signatures

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

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

cmd.exeWScript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation	cmd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation	WScript.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Modifies registry class 1 IoCs

Processes:

explorer.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000_Classes\Local Settings explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000_Classes\Local Settings	explorer.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exeexplorer.exeWScript.exe

description	pid	process	target process
PID 1944 wrote to memory of 2164	1944	cmd.exe	explorer.exe
PID 1944 wrote to memory of 2164	1944	cmd.exe	explorer.exe
PID 2276 wrote to memory of 2524	2276	explorer.exe	WScript.exe
PID 2276 wrote to memory of 2524	2276	explorer.exe	WScript.exe
PID 2524 wrote to memory of 2208	2524	WScript.exe	NisSrv.exe
PID 2524 wrote to memory of 2208	2524	WScript.exe	NisSrv.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\顺丰2023年4月裁员名单\2023年4月裁员人员名单.doc.lnk
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1944

C:\Windows\explorer.exe
"C:\Windows\explorer.exe" ".\清单列表\.__MACOSX__\闕ｳ�ｭ隴�\._MACOS_\apt.vbs"
2⤵
PID:2164

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2276

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\顺丰2023年4月裁员名单\清单列表\.__MACOSX__\闕ｳ�ｭ隴�\._MACOS_\apt.vbs"
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2524

C:\Users\Admin\AppData\Local\Temp\顺丰2023年4月裁员名单\清单列表\.__MACOSX__\闕ｳ�ｭ隴�\._MACOS_\NisSrv.exe
"C:\Users\Admin\AppData\Local\Temp\顺丰2023年4月裁员名单\清单列表\.__MACOSX__\闕ｳ�ｭ隴�\._MACOS_\NisSrv.exe"
3⤵
PID:2208

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/2208-134-0x000001DAF7FD0000-0x000001DAF8011000-memory.dmp

Filesize
260KB

Download
memory/2208-137-0x000001DAF8020000-0x000001DAF806F000-memory.dmp

Filesize
316KB

Download
memory/2208-138-0x000001DAF7FD0000-0x000001DAF801F000-memory.dmp

Filesize
316KB

Download
memory/2208-139-0x00000000764D0000-0x0000000076CF2000-memory.dmp

Filesize
8.1MB

Download