Overview
overview
8Static
static
3adace1440c...54.exe
windows7-x64
7adace1440c...54.exe
windows10-2004-x64
7$PLUGINSDI...ol.dll
windows7-x64
3$PLUGINSDI...ol.dll
windows10-2004-x64
3$PLUGINSDI...er.dll
windows7-x64
3$PLUGINSDI...er.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
3Biuro.exe
windows7-x64
3Biuro.exe
windows10-2004-x64
3Biuro.html
windows7-x64
3Biuro.html
windows10-2004-x64
1KSeFManager.exe
windows7-x64
3KSeFManager.exe
windows10-2004-x64
3KopiowaniePlikow.exe
windows7-x64
3KopiowaniePlikow.exe
windows10-2004-x64
3PobierzAkt...je.exe
windows7-x64
8PobierzAkt...je.exe
windows10-2004-x64
8Serwis.exe
windows7-x64
3Serwis.exe
windows10-2004-x64
Analysis
-
max time kernel
149s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
20/08/2024, 23:48
Static task
static1
Behavioral task
behavioral1
Sample
adace1440cadccb294baf43f0a8ac1f1bd387b3082e0fd860f02071e8914e654.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
adace1440cadccb294baf43f0a8ac1f1bd387b3082e0fd860f02071e8914e654.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/AccessControl.dll
Resource
win7-20240705-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/AccessControl.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/ShellExecAsUser.dll
Resource
win7-20240704-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/ShellExecAsUser.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240705-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win7-20240704-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral11
Sample
Biuro.exe
Resource
win7-20240705-en
Behavioral task
behavioral12
Sample
Biuro.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral13
Sample
Biuro.html
Resource
win7-20240704-en
Behavioral task
behavioral14
Sample
Biuro.html
Resource
win10v2004-20240802-en
Behavioral task
behavioral15
Sample
KSeFManager.exe
Resource
win7-20240729-en
Behavioral task
behavioral16
Sample
KSeFManager.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral17
Sample
KopiowaniePlikow.exe
Resource
win7-20240708-en
Behavioral task
behavioral18
Sample
KopiowaniePlikow.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral19
Sample
PobierzAktualizacje.exe
Resource
win7-20240705-en
Behavioral task
behavioral20
Sample
PobierzAktualizacje.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral21
Sample
Serwis.exe
Resource
win7-20240704-en
Behavioral task
behavioral22
Sample
Serwis.exe
Resource
win10v2004-20240802-en
General
-
Target
PobierzAktualizacje.exe
-
Size
739KB
-
MD5
2ba8f9fe7610b96ae6b0c6cd00c15a2b
-
SHA1
a6308eaaf8fd401d045ec844003d124f977eb138
-
SHA256
e8b35edd4d11e79130d2c158a9ac72dcf6d10b752a421d9f880656d6d4f8a973
-
SHA512
b7d318138e4310649fc28ffcb18788155436907caa9c0e3a0a2a6985155a731a0b853284dd2f59e60989ca316efccefc0cdfaff5175a0522f9e599963f4ae886
-
SSDEEP
12288:9B1xvyEDTHq0FCI75bnVlP7h9VlWmQAy1LI9JM7juaHxkW0id1nE8uRJ6k:xMeK0kI75bnL1DlWmQAysOxHxkW081nk
Malware Config
Signatures
-
Downloads MZ/PE file
-
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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation PobierzAktualizacje.exe -
Executes dropped EXE 1 IoCs
pid Process 1604 Biuro.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 2 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 PobierzAktualizacje.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Biuro.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1604 Biuro.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5052 wrote to memory of 1604 5052 PobierzAktualizacje.exe 89 PID 5052 wrote to memory of 1604 5052 PobierzAktualizacje.exe 89 PID 5052 wrote to memory of 1604 5052 PobierzAktualizacje.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\PobierzAktualizacje.exe"C:\Users\Admin\AppData\Local\Temp\PobierzAktualizacje.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5052 -
C:\Users\Admin\AppData\Local\Temp\Biuro.exe"C:\Users\Admin\AppData\Local\Temp\Biuro.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:1604
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
20.4MB
MD57399efa7000a4e66ea8b681ee6e724a0
SHA1b3e781885bfda7cdb345a023bb232254900b9b23
SHA256704f5ec9abc7fe2e26910bd36673df288c45867f906f114750ceb1cb893721ea
SHA51241fe59c4fe743663c04911162bdd9b21022697adf6099dd17cacfec5f81897c846f6374816eec7f324097b754f26e9f4a9fbedfa9919bb984fc58cf62efe4740
-
Filesize
5KB
MD5db635f6c1fba4552b845035c889fa60d
SHA16d0115aff6ea5d533d586e4182d2453523ac4109
SHA25629535653d07f72ee1f3935314978db746e6503f4b681a88ef84e9f5860763b2b
SHA512fd4c0cadafa72d623f442f04c6f85a52c1f55ab81b16c7c1b497fa916fdf0834502a70378521b53a649c83336989bc70d2f5ce10a78e43b1bb0957831ae0596f