Overview
overview
7Static
static
3internatio...df.exe
windows10-2004-x64
7$PLUGINSDI...LL.dll
windows10-2004-x64
3$PLUGINSDI...dl.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...er.bmp
windows10-2004-x64
7$PLUGINSDI...rd.bmp
windows10-2004-x64
7$PLUGINSDI...gs.dll
windows10-2004-x64
3$WINDIR/primopdf.ini
windows10-2004-x64
1Online_UG.url
windows10-2004-x64
3PrimDel.exe
windows10-2004-x64
1PrimInst.exe
windows10-2004-x64
1PrimoRun.exe
windows10-2004-x64
1gsdll32.dll
windows10-2004-x64
3Analysis
-
max time kernel
234s -
max time network
220s -
platform
windows10-2004_x64 -
resource
win10v2004-20240319-en -
resource tags
arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system -
submitted
02/04/2024, 02:17
Static task
static1
Behavioral task
behavioral1
Sample
internationalprimopdf.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/NSISdl.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/modern-header.bmp
Resource
win10v2004-20240226-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/modern-wizard.bmp
Resource
win10v2004-20240319-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral8
Sample
$WINDIR/primopdf.ini
Resource
win10v2004-20240226-en
Behavioral task
behavioral9
Sample
Online_UG.url
Resource
win10v2004-20240226-en
Behavioral task
behavioral10
Sample
PrimDel.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral11
Sample
PrimInst.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral12
Sample
PrimoRun.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral13
Sample
gsdll32.dll
Resource
win10v2004-20231215-en
General
-
Target
$PLUGINSDIR/modern-wizard.bmp
-
Size
150KB
-
MD5
58181a0f0411f37429fdd3ae3199d681
-
SHA1
500d9eb07337e76228ab5564b1073d68c6c0cbe6
-
SHA256
bcca0774fc648a9a9b1d5361322450725eb580e892026f0d7322e755ef653051
-
SHA512
4c48ab261c48535eb6997cf3de7849d583bf1bae54c86f3fa1918c53feb60ad9b1a5feaf696c0adb9ec663071456cdb1e4ec38c0a8fbff7e6b22a086a49c9429
-
SSDEEP
3072:fVtJktCuZ1PD0jWbN/BX6Y3ggXvEbGaZRZN:dHzuzPQKbNpX6Y3gK8bGaZbN
Malware Config
Signatures
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Control Panel\International\Geo\Nation cmd.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\Debug\WIA\wiatrace.log mspaint.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000_Classes\Local Settings cmd.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1856 mspaint.exe 1856 mspaint.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 1856 mspaint.exe 1856 mspaint.exe 1856 mspaint.exe 1856 mspaint.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3404 wrote to memory of 1856 3404 cmd.exe 95 PID 3404 wrote to memory of 1856 3404 cmd.exe 95
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\modern-wizard.bmp1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3404 -
C:\Windows\system32\mspaint.exe"C:\Windows\system32\mspaint.exe" "C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\modern-wizard.bmp"2⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1856
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DeviceAssociationService1⤵PID:4252
-
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 --no-appcompat-clear --mojo-platform-channel-handle=3764 --field-trial-handle=2228,i,17475224967547320003,13667387715861799238,262144 --variations-seed-version /prefetch:81⤵PID:2284