Overview
overview
7Static
static
3tbassass-v110901.exe
windows7-x64
7tbassass-v110901.exe
windows10-2004-x64
7$PLUGINSDI...RL.dll
windows7-x64
3$PLUGINSDI...RL.dll
windows10-2004-x64
3$PLUGINSDI...ns.dll
windows7-x64
3$PLUGINSDI...ns.dll
windows10-2004-x64
37z.dll
windows7-x64
17z.dll
windows10-2004-x64
37z.exe
windows7-x64
17z.exe
windows10-2004-x64
1GTA.exe
windows7-x64
7GTA.exe
windows10-2004-x64
7Resource/B...us.dll
windows7-x64
1Resource/B...us.dll
windows10-2004-x64
1Resource/B...s0.dll
windows7-x64
1Resource/B...s0.dll
windows10-2004-x64
1Resource/B...s0.dll
windows7-x64
1Resource/B...s0.dll
windows10-2004-x64
1Resource/Bins/G.dll
windows7-x64
1Resource/Bins/G.dll
windows10-2004-x64
1Resource/Bins/Gax.dll
windows7-x64
3Resource/Bins/Gax.dll
windows10-2004-x64
3Resource/B...PI.dll
windows7-x64
1Resource/B...PI.dll
windows10-2004-x64
1Resource/Bins/hyp.dll
windows7-x64
1Resource/Bins/hyp.dll
windows10-2004-x64
1Resource/Bins/xml.dll
windows7-x64
1Resource/Bins/xml.dll
windows10-2004-x64
1uninst.exe
windows7-x64
7uninst.exe
windows10-2004-x64
7新云软件.url
windows7-x64
1新云软件.url
windows10-2004-x64
1Analysis
-
max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
12-07-2024 00:06
Static task
static1
Behavioral task
behavioral1
Sample
tbassass-v110901.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
tbassass-v110901.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/BrandingURL.dll
Resource
win7-20240708-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/BrandingURL.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win7-20240704-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral7
Sample
7z.dll
Resource
win7-20240705-en
Behavioral task
behavioral8
Sample
7z.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral9
Sample
7z.exe
Resource
win7-20240704-en
Behavioral task
behavioral10
Sample
7z.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral11
Sample
GTA.exe
Resource
win7-20240704-en
Behavioral task
behavioral12
Sample
GTA.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral13
Sample
Resource/Bins/AppPlus.dll
Resource
win7-20240705-en
Behavioral task
behavioral14
Sample
Resource/Bins/AppPlus.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral15
Sample
Resource/Bins/CommandBars0.dll
Resource
win7-20240708-en
Behavioral task
behavioral16
Sample
Resource/Bins/CommandBars0.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral17
Sample
Resource/Bins/Controls0.dll
Resource
win7-20240708-en
Behavioral task
behavioral18
Sample
Resource/Bins/Controls0.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral19
Sample
Resource/Bins/G.dll
Resource
win7-20240704-en
Behavioral task
behavioral20
Sample
Resource/Bins/G.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral21
Sample
Resource/Bins/Gax.dll
Resource
win7-20240704-en
Behavioral task
behavioral22
Sample
Resource/Bins/Gax.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral23
Sample
Resource/Bins/GmAPI.dll
Resource
win7-20240705-en
Behavioral task
behavioral24
Sample
Resource/Bins/GmAPI.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral25
Sample
Resource/Bins/hyp.dll
Resource
win7-20240704-en
Behavioral task
behavioral26
Sample
Resource/Bins/hyp.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral27
Sample
Resource/Bins/xml.dll
Resource
win7-20240708-en
Behavioral task
behavioral28
Sample
Resource/Bins/xml.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral29
Sample
uninst.exe
Resource
win7-20240704-en
Behavioral task
behavioral30
Sample
uninst.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral31
Sample
新云软件.url
Resource
win7-20240705-en
Behavioral task
behavioral32
Sample
新云软件.url
Resource
win10v2004-20240709-en
General
-
Target
uninst.exe
-
Size
50KB
-
MD5
3d1b49d41ef71a3c3cc2b326ebdffe12
-
SHA1
54d308b0fe7b0f16b3e8ce104eb7405c11473698
-
SHA256
9ec5f416372c0b168a756ac40d7741033019c543b19753dc5d7cfa244346b2a2
-
SHA512
67e4247eb5553d45824ee56646776ef95397565123e6f07b504bd21112fce220ec93beb3f1e926e9b4f87c19bc416c87539f8da28bcfea1e4a0b79ef5ac3723c
-
SSDEEP
1536:Appal05FyuC/jL052PgFEla4ZJJcCwgdLeAyN1zh:Ap8l05FyX0mpa4ZJJchceAy
Malware Config
Signatures
-
Deletes itself 1 IoCs
pid Process 1556 Au_.exe -
Executes dropped EXE 1 IoCs
pid Process 1556 Au_.exe -
Loads dropped DLL 4 IoCs
pid Process 1864 uninst.exe 1556 Au_.exe 1556 Au_.exe 1556 Au_.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
NSIS installer 2 IoCs
resource yara_rule behavioral29/files/0x000500000001962a-2.dat nsis_installer_1 behavioral29/files/0x000500000001962a-2.dat nsis_installer_2 -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1864 wrote to memory of 1556 1864 uninst.exe 30 PID 1864 wrote to memory of 1556 1864 uninst.exe 30 PID 1864 wrote to memory of 1556 1864 uninst.exe 30 PID 1864 wrote to memory of 1556 1864 uninst.exe 30 PID 1864 wrote to memory of 1556 1864 uninst.exe 30 PID 1864 wrote to memory of 1556 1864 uninst.exe 30 PID 1864 wrote to memory of 1556 1864 uninst.exe 30
Processes
-
C:\Users\Admin\AppData\Local\Temp\uninst.exe"C:\Users\Admin\AppData\Local\Temp\uninst.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1864 -
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⤵
- Deletes itself
- Executes dropped EXE
- Loads dropped DLL
PID:1556
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
50KB
MD53d1b49d41ef71a3c3cc2b326ebdffe12
SHA154d308b0fe7b0f16b3e8ce104eb7405c11473698
SHA2569ec5f416372c0b168a756ac40d7741033019c543b19753dc5d7cfa244346b2a2
SHA51267e4247eb5553d45824ee56646776ef95397565123e6f07b504bd21112fce220ec93beb3f1e926e9b4f87c19bc416c87539f8da28bcfea1e4a0b79ef5ac3723c