9bd15e2d3ae11e27fdceab653035054c957135b488d089fc754daade677758f8

Analysis

max time kernel
141s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/04/2024, 00:58

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General

Target

9bd15e2d3ae11e27fdceab653035054c957135b488d089fc754daade677758f8.dll
Size

582KB
MD5

948dc2912b244f8bdf65a2a4acd60736
SHA1

c9329ce6a1ecc271bb5a12dd857d8d9d3f55247a
SHA256

9bd15e2d3ae11e27fdceab653035054c957135b488d089fc754daade677758f8
SHA512

8c76118d5c93f8bc9fa55b294f7eb3866fc6923daedf134a95aeef3d495061008415d896beacf2aa12262b7e2c19cb0521df33faf5e7ed5320a957e91a05a89b
SSDEEP

6144:Pec9yH8AOZFmd2w6APOj1V/EgSEBV+UdvrEFp7hKPc:PejH83vm968gnBjvrEH76c

Score

9^/10

upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/files/0x000800000002323c-1.dat	UPX
behavioral2/memory/1388-6-0x0000000000950000-0x0000000000980000-memory.dmp	UPX
behavioral2/memory/1388-13-0x0000000000950000-0x0000000000980000-memory.dmp	UPX
behavioral2/memory/1388-16-0x0000000000950000-0x0000000000980000-memory.dmp	UPX

Blocklisted process makes network request 1 IoCs

flow	pid	Process
16	1388	rundll32.exe

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000800000002323c-1.dat	acprotect

Loads dropped DLL 2 IoCs

pid	Process
1388	rundll32.exe
1388	rundll32.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000800000002323c-1.dat	upx
behavioral2/memory/1388-6-0x0000000000950000-0x0000000000980000-memory.dmp	upx
behavioral2/memory/1388-13-0x0000000000950000-0x0000000000980000-memory.dmp	upx
behavioral2/memory/1388-16-0x0000000000950000-0x0000000000980000-memory.dmp	upx

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\e:	rundll32.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	rundll32.exe
File created	\??\c:\program files\common files\system\symsrv.dll.000	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3768	1388	WerFault.exe	90

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1388	rundll32.exe
1388	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1388	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4140 wrote to memory of 1388	4140	rundll32.exe	90
PID 4140 wrote to memory of 1388	4140	rundll32.exe	90
PID 4140 wrote to memory of 1388	4140	rundll32.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9bd15e2d3ae11e27fdceab653035054c957135b488d089fc754daade677758f8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4140
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9bd15e2d3ae11e27fdceab653035054c957135b488d089fc754daade677758f8.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  - Enumerates connected drives
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1388
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1388 -s 608
    3⤵
    - Program crash
    PID:3768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1388 -ip 1388
1⤵
PID:3964

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 --no-appcompat-clear --mojo-platform-channel-handle=3624 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
1⤵
PID:988

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/1388-6-0x0000000000950000-0x0000000000980000-memory.dmp

Filesize
192KB

Download
memory/1388-7-0x0000000010000000-0x000000001007B000-memory.dmp

Filesize
492KB

Download
memory/1388-13-0x0000000000950000-0x0000000000980000-memory.dmp

Filesize
192KB

Download
memory/1388-15-0x0000000075600000-0x0000000075663000-memory.dmp

Filesize
396KB

Download
memory/1388-16-0x0000000000950000-0x0000000000980000-memory.dmp

Filesize
192KB

Download
memory/1388-17-0x0000000075600000-0x0000000075663000-memory.dmp

Filesize
396KB

Download