Overview
overview
7Static
static
3e1f5c49c2d...e4.exe
windows7-x64
3e1f5c49c2d...e4.exe
windows10-2004-x64
3$PLUGINSDI...md.dll
windows7-x64
3$PLUGINSDI...md.dll
windows10-2004-x64
3$PLUGINSDI...ns.dll
windows7-x64
3$PLUGINSDI...ns.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...gs.dll
windows7-x64
3$PLUGINSDI...gs.dll
windows10-2004-x64
3Uninstall.exe
windows7-x64
7Uninstall.exe
windows10-2004-x64
7flashplayer.exe
windows7-x64
1flashplayer.exe
windows10-2004-x64
1toolbar.exe
windows7-x64
7toolbar.exe
windows10-2004-x64
7$PLUGINSDI...LL.dll
windows7-x64
3$PLUGINSDI...LL.dll
windows10-2004-x64
3$PLUGINSDI...se.dll
windows7-x64
3$PLUGINSDI...se.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDIR/UAC.dll
windows7-x64
3$PLUGINSDIR/UAC.dll
windows10-2004-x64
3$PLUGINSDIR/inetc.dll
windows7-x64
3$PLUGINSDIR/inetc.dll
windows10-2004-x64
3$PLUGINSDI...es.rtf
windows7-x64
4$PLUGINSDI...es.rtf
windows10-2004-x64
1$PLUGINSDI...es.rtf
windows7-x64
4$PLUGINSDI...es.rtf
windows10-2004-x64
1$PLUGINSDI...gs.dll
windows7-x64
3$PLUGINSDI...gs.dll
windows10-2004-x64
3Analysis
-
max time kernel
140s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
27/03/2024, 15:06
Static task
static1
Behavioral task
behavioral1
Sample
e1f5c49c2d312873fde445d4584fe2e4.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
e1f5c49c2d312873fde445d4584fe2e4.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/ExecCmd.dll
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/ExecCmd.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win7-20240221-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240221-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win7-20240220-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral11
Sample
Uninstall.exe
Resource
win7-20240215-en
Behavioral task
behavioral12
Sample
Uninstall.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral13
Sample
flashplayer.exe
Resource
win7-20240221-en
Behavioral task
behavioral14
Sample
flashplayer.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral15
Sample
toolbar.exe
Resource
win7-20240221-en
Behavioral task
behavioral16
Sample
toolbar.exe
Resource
win10v2004-20240319-en
Behavioral task
behavioral17
Sample
$PLUGINSDIR/CabDLL.dll
Resource
win7-20240221-en
Behavioral task
behavioral18
Sample
$PLUGINSDIR/CabDLL.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral19
Sample
$PLUGINSDIR/CustomLicense.dll
Resource
win7-20240221-en
Behavioral task
behavioral20
Sample
$PLUGINSDIR/CustomLicense.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral21
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240220-en
Behavioral task
behavioral22
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral23
Sample
$PLUGINSDIR/UAC.dll
Resource
win7-20240221-en
Behavioral task
behavioral24
Sample
$PLUGINSDIR/UAC.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral25
Sample
$PLUGINSDIR/inetc.dll
Resource
win7-20240221-en
Behavioral task
behavioral26
Sample
$PLUGINSDIR/inetc.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral27
Sample
$PLUGINSDIR/license2_es.rtf
Resource
win7-20240221-en
Behavioral task
behavioral28
Sample
$PLUGINSDIR/license2_es.rtf
Resource
win10v2004-20240319-en
Behavioral task
behavioral29
Sample
$PLUGINSDIR/license_es.rtf
Resource
win7-20240221-en
Behavioral task
behavioral30
Sample
$PLUGINSDIR/license_es.rtf
Resource
win10v2004-20240226-en
Behavioral task
behavioral31
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win7-20240220-en
Behavioral task
behavioral32
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20240226-en
General
-
Target
Uninstall.exe
-
Size
92KB
-
MD5
e55df9069ff5849cd97503548a7dca56
-
SHA1
c355709042c60b8e2bf1affb21afa2e8fc399341
-
SHA256
546640a1f3e28dc96a58fefb3cab1829ea1fc2c973cc37da08dc69cac6e3e685
-
SHA512
a3658179dd2c2d6a11dc1709d6eed3d36652ccd9778c1cc4dbf1a8f9bf35fb7ac2e47fdf049349b2c75808d6a823d7e5e5e4c3f0a6adda119e2baef09669d6a3
-
SSDEEP
1536:Byiit01zQf7Cx02zXEgbdPJtK3BJ7gdLeAyNN5qhPEm/Y7eXpDjDT:CO1zQzGxo3BJ7ceA4q1RfpLT
Malware Config
Signatures
-
Executes dropped EXE 1 IoCs
pid Process 1244 Au_.exe -
Loads dropped DLL 1 IoCs
pid Process 2904 Uninstall.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
NSIS installer 1 IoCs
resource yara_rule behavioral11/files/0x000c000000015c4c-2.dat nsis_installer_2 -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1244 Au_.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2904 wrote to memory of 1244 2904 Uninstall.exe 28 PID 2904 wrote to memory of 1244 2904 Uninstall.exe 28 PID 2904 wrote to memory of 1244 2904 Uninstall.exe 28 PID 2904 wrote to memory of 1244 2904 Uninstall.exe 28
Processes
-
C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2904 -
C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe"C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\2⤵
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
PID:1244
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
92KB
MD5e55df9069ff5849cd97503548a7dca56
SHA1c355709042c60b8e2bf1affb21afa2e8fc399341
SHA256546640a1f3e28dc96a58fefb3cab1829ea1fc2c973cc37da08dc69cac6e3e685
SHA512a3658179dd2c2d6a11dc1709d6eed3d36652ccd9778c1cc4dbf1a8f9bf35fb7ac2e47fdf049349b2c75808d6a823d7e5e5e4c3f0a6adda119e2baef09669d6a3