a39798386e56e5c80b7c878d250461550055708f2a75806660a361220fe58d20

Analysis

max time kernel
138s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17/08/2024, 08:41

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General

Target

uninstall.exe
Size

93KB
MD5

bfd9416d42a96ec33abdb04b45f32c8d
SHA1

c28244d6858b91a6d3c3926b02313109d8c03332
SHA256

da0cd6ae356fbdaf887a5af81dea9a3470de519de152b6a4f156de27768c7340
SHA512

58289def6a952da22dc3599ea1711d4be7b5d9faf6c3cfb5967b251cb74e023eac1918f4daa33de73b87c223a0f2d108ec62c635302d4c694d701ca1e9f5089c
SSDEEP

1536:+pgpHzb9dZVX9fHMvG0D3XJwgKzLidAsK6yKdJf2PFWWw9fuYaiZX:EgXdZt9P6D3XJwJidAA/JOPpw92YBZX

Score

7^/10

discovery upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral14/files/0x000700000002362a-14.dat	acprotect

Deletes itself 1 IoCs

pid	Process
4456	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
4456	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
4456	Au_.exe
4456	Au_.exe
4456	Au_.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral14/files/0x000700000002362a-14.dat	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ielowutil.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uninstall.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral14/files/0x0008000000023618-3.dat	nsis_installer_1
behavioral14/files/0x0008000000023618-3.dat	nsis_installer_2

Modifies Internet Explorer settings 1 TTPs 15 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Internet Explorer\Toolbar	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{87A03AA5-5C74-11EF-A2A4-4A4A300BA5D9} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4456	Au_.exe
4456	Au_.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2992	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2992	iexplore.exe
2992	iexplore.exe
2692	IEXPLORE.EXE
2692	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 720 wrote to memory of 4456	720	uninstall.exe	91
PID 720 wrote to memory of 4456	720	uninstall.exe	91
PID 720 wrote to memory of 4456	720	uninstall.exe	91
PID 4456 wrote to memory of 3844	4456	Au_.exe	92
PID 4456 wrote to memory of 3844	4456	Au_.exe	92
PID 4456 wrote to memory of 3844	4456	Au_.exe	92
PID 2992 wrote to memory of 2692	2992	iexplore.exe	95
PID 2992 wrote to memory of 2692	2992	iexplore.exe	95
PID 2992 wrote to memory of 2692	2992	iexplore.exe	95

C:\Users\Admin\AppData\Local\Temp\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\uninstall.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:720
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4456
- - C:\Windows\SysWOW64\regsvr32.exe
    regsvr32.exe /n /i /u /s "C:\Users\Admin\AppData\Local\Temp\SearchToolbar.dll"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3844

C:\Program Files (x86)\Internet Explorer\ielowutil.exe
"C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
1⤵
- System Location Discovery: System Language Discovery
PID:5032

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2992 CREDAT:17410 /prefetch:2
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2692

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4460,i,4174666705242427184,7333705955694532165,262144 --variations-seed-version --mojo-platform-channel-handle=3812 /prefetch:8
1⤵
PID:720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsb5456.tmp\KillProc.dll

Filesize
24KB

MD5
f2223ee8d3b5a26d9386dd90fd6326cd

SHA1
edf24705bba2a459637722af3b7a8b7bac23d2ed

SHA256
488aa34c7d2da0ab4a6b50463d5bb7fb402493602d3164bd1d56a2e93d97237e

SHA512
59bdc5368c9dbcee3f7807a653618becac2c36ac4b4c5b3e8906f32e55ddb0620af30e1c771bd9e3145b7caf996c1cc439066e1ce17cbe6f3ed9248c2e6e4428

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsb5456.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
93KB

MD5
bfd9416d42a96ec33abdb04b45f32c8d

SHA1
c28244d6858b91a6d3c3926b02313109d8c03332

SHA256
da0cd6ae356fbdaf887a5af81dea9a3470de519de152b6a4f156de27768c7340

SHA512
58289def6a952da22dc3599ea1711d4be7b5d9faf6c3cfb5967b251cb74e023eac1918f4daa33de73b87c223a0f2d108ec62c635302d4c694d701ca1e9f5089c

Download Submit
memory/4456-19-0x00000000048C0000-0x00000000048D4000-memory.dmp

Filesize
80KB

Download
memory/4456-20-0x00000000048C0000-0x00000000048D4000-memory.dmp

Filesize
80KB

Download
memory/4456-27-0x00000000048C0000-0x00000000048D4000-memory.dmp

Filesize
80KB

Download
memory/4456-28-0x00000000048C0000-0x00000000048D4000-memory.dmp

Filesize
80KB

Download