83d064cda547480817b9be49088068c0dcae3c7b0b1ad1a7d215e7aeb799ce86

Analysis

max time kernel
139s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/01/2024, 15:34

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General

Target

83d064cda547480817b9be49088068c0dcae3c7b0b1ad1a7d215e7aeb799ce86.dll
Size

1.2MB
MD5

9812d412ec7e0efdfb07558be2411194
SHA1

2f6d423d82943067549816f96fa5bd17af286858
SHA256

83d064cda547480817b9be49088068c0dcae3c7b0b1ad1a7d215e7aeb799ce86
SHA512

20f09ec86c1c683aadf82a5a4e697658e34af8ee6246e4332fbd47c6431634c78cf1bc0815066436e98afc678776ba4d9deb27492fa91d9b04dd13f9375b9691
SSDEEP

24576:A+mp1aX1kO3ZnRdhCLWNqghNEuCbS2wHrGw6x/TQX6VrEH7sb:Bmp1aX1kO/ZNqghWVSnrGw6x/Ty6B

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0009000000022480-1.dat	acprotect

Loads dropped DLL 5 IoCs

pid	Process
4536	rundll32.exe
808	WerFault.exe
2136	WerFault.exe
2664	WerFault.exe
1204	WerFault.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0009000000022480-1.dat	upx
behavioral2/memory/4536-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4536-15-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4536-19-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	rundll32.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2136	4536	WerFault.exe	87
1204	4536	WerFault.exe	87

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4536	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3088 wrote to memory of 4536	3088	rundll32.exe	87
PID 3088 wrote to memory of 4536	3088	rundll32.exe	87
PID 3088 wrote to memory of 4536	3088	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\83d064cda547480817b9be49088068c0dcae3c7b0b1ad1a7d215e7aeb799ce86.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3088
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\83d064cda547480817b9be49088068c0dcae3c7b0b1ad1a7d215e7aeb799ce86.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:4536
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4536 -s 836
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2136
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4536 -s 844
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:1204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4536 -ip 4536
1⤵
- Loads dropped DLL
PID:808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4536 -ip 4536
1⤵
- Loads dropped DLL
PID:2664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

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/4536-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4536-5-0x0000000074D50000-0x0000000074E69000-memory.dmp

Filesize
1.1MB

Download
memory/4536-6-0x0000000074D50000-0x0000000074E69000-memory.dmp

Filesize
1.1MB

Download
memory/4536-7-0x0000000074D50000-0x0000000074E69000-memory.dmp

Filesize
1.1MB

Download
memory/4536-8-0x0000000074D50000-0x0000000074E69000-memory.dmp

Filesize
1.1MB

Download
memory/4536-10-0x0000000074D50000-0x0000000074E69000-memory.dmp

Filesize
1.1MB

Download
memory/4536-11-0x0000000074D50000-0x0000000074E69000-memory.dmp

Filesize
1.1MB

Download
memory/4536-15-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4536-19-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download