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Overview
overview
7Static
static
3PrimoCache....0.exe
windows7-x64
7PrimoCache....0.exe
windows10-2004-x64
7PrimoCache...or.exe
windows7-x64
1PrimoCache...or.exe
windows10-2004-x64
1PrimoCache...cv.sys
windows10-2004-x64
1PrimoCache...cv.sys
windows10-2004-x64
1PrimoCache...cv.sys
windows10-2004-x64
1PrimoCache...cv.sys
windows10-2004-x64
1PrimoCache...ll.bat
windows7-x64
1PrimoCache...ll.bat
windows10-2004-x64
1Analysis
-
max time kernel
141s -
max time network
95s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
26/05/2024, 16:54
Static task
static1
Behavioral task
behavioral1
Sample
PrimoCache/PrimoCache_Srv_Setup_4.3.0.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
PrimoCache/PrimoCache_Srv_Setup_4.3.0.exe
Resource
win10v2004-20240426-en
Behavioral task
behavioral3
Sample
PrimoCache/reg/CmdColor.exe
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
PrimoCache/reg/CmdColor.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral5
Sample
PrimoCache/reg/drv.bak/win10-11_srv2016-2022/rxfcv.sys
Resource
win10v2004-20240426-en
Behavioral task
behavioral6
Sample
PrimoCache/reg/drv.bak/win7-8.1_srv2008-2012/rxfcv.sys
Resource
win10v2004-20240508-en
Behavioral task
behavioral7
Sample
PrimoCache/reg/drv10/rxfcv.sys
Resource
win10v2004-20240508-en
Behavioral task
behavioral8
Sample
PrimoCache/reg/drv7/rxfcv.sys
Resource
win10v2004-20240508-en
Behavioral task
behavioral9
Sample
PrimoCache/reg/install.bat
Resource
win7-20240419-en
Behavioral task
behavioral10
Sample
PrimoCache/reg/install.bat
Resource
win10v2004-20240508-en
General
-
Target
PrimoCache/PrimoCache_Srv_Setup_4.3.0.exe
-
Size
7.0MB
-
MD5
6eef34fcb55dd0b46686bb4ff4b9af2a
-
SHA1
b1e36aa97e0e7961a22c36074043776831700ac9
-
SHA256
72272ad5a44142416f124e206a689c7d92b7fa1cdc6efb2e3388343e75d2a0b2
-
SHA512
172c2c9abf4528efb0d06d3a4ad304eca4d555cbb171b5847d3ceccba7777964aa9ba4daed05e55b2dffe360a932885c790f3e9586b0049696652ef07fbbdf17
-
SSDEEP
196608:dxV2Vn+IH0xBSz/i0zaxByF8+IGVC3WnOxdXQ8sXdZ:dxV2Vn+IH0x4zasa5eC3ucC8sT
Malware Config
Signatures
-
Executes dropped EXE 1 IoCs
pid Process 1836 PrimoCache_Srv_Setup_4.3.0.tmp -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5052 wrote to memory of 1836 5052 PrimoCache_Srv_Setup_4.3.0.exe 82 PID 5052 wrote to memory of 1836 5052 PrimoCache_Srv_Setup_4.3.0.exe 82 PID 5052 wrote to memory of 1836 5052 PrimoCache_Srv_Setup_4.3.0.exe 82
Processes
-
C:\Users\Admin\AppData\Local\Temp\PrimoCache\PrimoCache_Srv_Setup_4.3.0.exe"C:\Users\Admin\AppData\Local\Temp\PrimoCache\PrimoCache_Srv_Setup_4.3.0.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:5052 -
C:\Users\Admin\AppData\Local\Temp\is-3I89I.tmp\PrimoCache_Srv_Setup_4.3.0.tmp"C:\Users\Admin\AppData\Local\Temp\is-3I89I.tmp\PrimoCache_Srv_Setup_4.3.0.tmp" /SL5="$40212,6755664,417280,C:\Users\Admin\AppData\Local\Temp\PrimoCache\PrimoCache_Srv_Setup_4.3.0.exe"2⤵
- Executes dropped EXE
PID:1836
-
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
-
Filesize
1.4MB
MD512cce569ff0f4c682ee3308acfe4d818
SHA15f9dfc178e4c85fc438381b0ad456ba08b818798
SHA2569ab962babf1dc1379a289441d1bf8ab2732d4e01e24a74213c4e77b34ac92587
SHA512e4c3fd712234e085fe3c29e1a7b27bc51351b24b0e6188a88876404b8765f23acfe9a7347468f32f6a417663e1e2ede232abc1fe5d87b2585bd9df1e2c57d7fe