Overview
overview
7Static
static
3DocuSign-D...4A.exe
windows10-2004-x64
7DocuSign-D...4A.exe
windows11-21h2-x64
7$PLUGINSDIR/INetC.dll
windows10-2004-x64
3$PLUGINSDIR/INetC.dll
windows11-21h2-x64
3$PLUGINSDI...ns.dll
windows10-2004-x64
3$PLUGINSDI...ns.dll
windows11-21h2-x64
3$PLUGINSDI...dl.dll
windows10-2004-x64
3$PLUGINSDI...dl.dll
windows11-21h2-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows11-21h2-x64
3$PLUGINSDIR/UAC.dll
windows10-2004-x64
3$PLUGINSDIR/UAC.dll
windows11-21h2-x64
3$PLUGINSDI...ay.dll
windows10-2004-x64
3$PLUGINSDI...ay.dll
windows11-21h2-x64
3$PLUGINSDI...ec.dll
windows10-2004-x64
3$PLUGINSDI...ec.dll
windows11-21h2-x64
3$PLUGINSDI...ON.dll
windows10-2004-x64
3$PLUGINSDI...ON.dll
windows11-21h2-x64
3$PLUGINSDI...rk.dll
windows10-2004-x64
3$PLUGINSDI...rk.dll
windows11-21h2-x64
3$TEMP/$R0.exe
windows10-2004-x64
1$TEMP/$R0.exe
windows11-21h2-x64
1$TEMP/$_65_.exe
windows10-2004-x64
1$TEMP/$_65_.exe
windows11-21h2-x64
1$_34_.exe
windows10-2004-x64
1$_34_.exe
windows11-21h2-x64
1CBBackupPlan.exe
windows10-2004-x64
1CBBackupPlan.exe
windows11-21h2-x64
1CBFS6Net.dll
windows10-2004-x64
1CBFS6Net.dll
windows11-21h2-x64
1Cloud.AzureClient.dll
windows10-2004-x64
1Cloud.AzureClient.dll
windows11-21h2-x64
1Analysis
- max time kernel
149s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
29/04/2026, 00:19
Behavioral task
behavioral1
Sample
DocuSign-DocuSign_o_backup_v8.3.0.85_oid56f276e1-bc4c-4284-a5ee-24c354e20059_fidBstz7oUXMUmco%21SuD2Kl4A.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
DocuSign-DocuSign_o_backup_v8.3.0.85_oid56f276e1-bc4c-4284-a5ee-24c354e20059_fidBstz7oUXMUmco%21SuD2Kl4A.exe
Resource
win11-20260130-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/INetC.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/INetC.dll
Resource
win11-20260130-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win11-20260130-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/NSISdl.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/NSISdl.dll
Resource
win11-20260130-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/System.dll
Resource
win11-20260130-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/UAC.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/UAC.dll
Resource
win11-20260130-en
Behavioral task
behavioral13
Sample
$PLUGINSDIR/nsArray.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral14
Sample
$PLUGINSDIR/nsArray.dll
Resource
win11-20260130-en
Behavioral task
behavioral15
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral16
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20260130-en
Behavioral task
behavioral17
Sample
$PLUGINSDIR/nsJSON.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral18
Sample
$PLUGINSDIR/nsJSON.dll
Resource
win11-20260130-en
Behavioral task
behavioral19
Sample
$PLUGINSDIR/processwork.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral20
Sample
$PLUGINSDIR/processwork.dll
Resource
win11-20260130-en
Behavioral task
behavioral21
Sample
$TEMP/$R0.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral22
Sample
$TEMP/$R0.exe
Resource
win11-20260130-en
Behavioral task
behavioral23
Sample
$TEMP/$_65_.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral24
Sample
$TEMP/$_65_.exe
Resource
win11-20260130-en
Behavioral task
behavioral25
Sample
$_34_.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral26
Sample
$_34_.exe
Resource
win11-20260130-en
Behavioral task
behavioral27
Sample
CBBackupPlan.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral28
Sample
CBBackupPlan.exe
Resource
win11-20260130-en
Behavioral task
behavioral29
Sample
CBFS6Net.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral30
Sample
CBFS6Net.dll
Resource
win11-20260130-en
Behavioral task
behavioral31
Sample
Cloud.AzureClient.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral32
Sample
Cloud.AzureClient.dll
Resource
win11-20260130-en
General
- Target $PLUGINSDIR/nsArray.dll
- Size 12KB
- Sample260429-ammq5sfv21
- SHA256 81745087f193b6fa131189f4b3ee9caa93e9692e408d3955fbcb9a4ec8516e2f
- MD5 0917ee492308b691326e6581e8c793c9
- SHA1 ff689c8051ffca7657461ac828bc46e303ab8e59
- SHA512 2a4ae4b93b0eac113a0e65f459798466120f1af4605a82a11f9022d790fe0b4f7d368b312f8a073b1dcfe8760e529ea56a5b5d4289321dc9f2fc8a22691b42b5
- SSDEEP 192:L+QMtjhIz23Tv7QpAXXcxwtXexpnGOO81h2xXP:SQ6nDv70AXXcWtXexpnGIhW
- TLSH T1C642090A1F6082F5F8F201BA557A2B355A1D7E19971E1EEB07A314142E209C73F39BE3
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 3376 2100 WerFault.exe 85 - System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4412 wrote to memory of 2100 4412 rundll32.exe 85
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsArray.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4412 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsArray.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:2100 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2100 -s 6003⤵
- Program crash
PID:3376
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2100 -ip 21001⤵PID:4568