2e5a45ed4358e73b8d87a5762d4f39f26dad4f0fed64de648b9a8a9c4a73b913

Analysis

max time kernel
60s
max time network
60s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30-09-2024 19:09

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General

Target

2e5a45ed4358e73b8d87a5762d4f39f26dad4f0fed64de648b9a8a9c4a73b913.exe
Size

2.4MB
MD5

957ce4e793a1e90fea00021e6b1ee3f6
SHA1

3872baf0a775c06870bd32ddd92a3923a093bab1
SHA256

2e5a45ed4358e73b8d87a5762d4f39f26dad4f0fed64de648b9a8a9c4a73b913
SHA512

ba2495187677a502ed9c87be75dc13f5841c44f8a9b32864665d89d875205001a1f5a59010d325ca5359b6f58a7b577d093b9f2a45f839fef8e248b09b036a78
SSDEEP

49152:WGlWC3YlQtHJ0VQ7VAG1FsmcsTKvA9OOG02Q:IQRv5A6

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (1817) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Executes dropped EXE 2 IoCs

pid	Process
1924	Zombie.exe
3840	_NisSrv.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Zombie.exe	2e5a45ed4358e73b8d87a5762d4f39f26dad4f0fed64de648b9a8a9c4a73b913.exe
File opened for modification	C:\Windows\SysWOW64\Zombie.exe	2e5a45ed4358e73b8d87a5762d4f39f26dad4f0fed64de648b9a8a9c4a73b913.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4500-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000235a9-4.dat	upx
behavioral2/memory/1924-6-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00070000000235b1-9.dat	upx
behavioral2/memory/4500-34-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\UIAutomationTypes.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\UIAutomationTypes.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\System.Windows.Input.Manipulations.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\ServiceWatcherSchedule.xml.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\Microsoft.VisualBasic.Forms.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\UIAutomationProvider.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\Microsoft.VisualBasic.Forms.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.Compression.Native.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Drawing.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\PresentationCore.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\PresentationUI.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\System.Windows.Controls.Ribbon.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\PresentationFramework.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\PresentationFramework.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Security.Cryptography.Xml.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\UIAutomationClient.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\7-Zip\Lang\et.txt.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\TabTip.exe.mui.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskclearui.xml.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.fi-fi.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\ReachFramework.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\MavInject32.exe.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Primitives.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Globalization.Calendars.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\PresentationCore.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\es-419.pak.tmp	Zombie.exe
File created	C:\Program Files\BackupWatch.xsl.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVFileSystemMetadata.dll.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.pl-pl.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\System.Xaml.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\ReachFramework.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\BackupDeny.vsd.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\10.0\VSTOMessageProvider.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-heap-l1-1-0.dll.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-core-file-l1-2-0.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.Serialization.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\UIAutomationTypes.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ComponentModel.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.Serialization.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\PresentationUI.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\WindowsFormsIntegration.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\System.Windows.Input.Manipulations.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Common Files\System\ado\msado26.tlb.tmp	Zombie.exe
File created	C:\Program Files\Common Files\System\msadc\fr-FR\msdaremr.dll.mui.tmp	Zombie.exe
File created	C:\Program Files\Common Files\System\Ole DB\fr-FR\sqlxmlx.rll.mui.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\ReachFramework.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\UIAutomationProvider.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\host\fxr\7.0.16\hostfxr.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.UnmanagedMemoryStream.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Text.Encoding.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\UIAutomationTypes.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsar.xml.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\System.Windows.Controls.Ribbon.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\Microsoft.VisualBasic.Forms.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.X509Certificates.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.Classic.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Loader.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\clrgc.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Forms.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\7-Zip\7-zip32.dll.tmp	Zombie.exe
File created	C:\Program Files\7-Zip\Lang\ko.txt.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\tabskb.dll.mui.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\lv-LV\tipresx.dll.mui.tmp	Zombie.exe
File created	C:\Program Files\Common Files\System\ado\fr-FR\msader15.dll.mui.tmp	Zombie.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2e5a45ed4358e73b8d87a5762d4f39f26dad4f0fed64de648b9a8a9c4a73b913.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Zombie.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4500 wrote to memory of 1924	4500	2e5a45ed4358e73b8d87a5762d4f39f26dad4f0fed64de648b9a8a9c4a73b913.exe	89
PID 4500 wrote to memory of 1924	4500	2e5a45ed4358e73b8d87a5762d4f39f26dad4f0fed64de648b9a8a9c4a73b913.exe	89
PID 4500 wrote to memory of 1924	4500	2e5a45ed4358e73b8d87a5762d4f39f26dad4f0fed64de648b9a8a9c4a73b913.exe	89
PID 4500 wrote to memory of 3840	4500	2e5a45ed4358e73b8d87a5762d4f39f26dad4f0fed64de648b9a8a9c4a73b913.exe	90
PID 4500 wrote to memory of 3840	4500	2e5a45ed4358e73b8d87a5762d4f39f26dad4f0fed64de648b9a8a9c4a73b913.exe	90

C:\Users\Admin\AppData\Local\Temp\2e5a45ed4358e73b8d87a5762d4f39f26dad4f0fed64de648b9a8a9c4a73b913.exe
"C:\Users\Admin\AppData\Local\Temp\2e5a45ed4358e73b8d87a5762d4f39f26dad4f0fed64de648b9a8a9c4a73b913.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4500
- C:\Windows\SysWOW64\Zombie.exe
  "C:\Windows\system32\Zombie.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  PID:1924
- C:\Users\Admin\AppData\Local\Temp\_NisSrv.exe
  "_NisSrv.exe"
  2⤵
  - Executes dropped EXE
  PID:3840

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4348,i,1828333185976713750,7918646547767660928,262144 --variations-seed-version --mojo-platform-channel-handle=4052 /prefetch:8
1⤵
PID:5112

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\$Recycle.Bin\S-1-5-21-2170637797-568393320-3232933035-1000\desktop.ini.exe

Filesize
33KB

MD5
932e305ed60880bbaba2c693c000d34b

SHA1
7ba2f7f6e168dea8e48c9f013401227aec489fff

SHA256
b2dd84294cae5b7134bb0e93be94a4a6cb572408a430649301b445110eab881b

SHA512
253304e5e30c93469c3c2385990c8ae25f71802a8a62c482056de9629d47a997f2078bdf4321cba55a1a515278319e7bfb237952172f390931a84ec6615d8633

Download Submit
C:\Users\Admin\AppData\Local\Temp\_NisSrv.exe

Filesize
2.4MB

MD5
4458b159176c71659a3ec035ebb78e28

SHA1
b69502a41efb9c551c215bc366df4540b69ebea0

SHA256
a81b3ece86010b4f4afd1ac1771a9e2469d04ac12b0c26c9068730a970a91ed4

SHA512
007f99c372709de3fc5605c694cbaa92732d610e1ea4a00a2817861fb99de5352c50be5673fbc6991c565c252a0dd60710c65da7de0d39a31e1b871542053288

Download Submit
C:\Windows\SysWOW64\Zombie.exe

Filesize
33KB

MD5
48106bafa34064810531c7afbe6223c9

SHA1
13ec47e0b865311cf55a3d3a175b51884402a93b

SHA256
2ffc6a05bea4f661ebd9d685281aa5b9f2f59dc283d36fc6363e04572a27eb22

SHA512
6ee7bd0c06246399380675cbae78854878bf8430424c2029bfb6fc5a9c57d66900c78b83d78617b47cc6586253120d83b4c9b01c9e35634e996741b618f9d103

Download Submit
memory/1924-6-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4500-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4500-34-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download