dd3e38e1558b6efde8bd002f2071385b653c964c616d1a4c8af86bc11302b65b

Analysis

max time kernel
130s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
25/05/2024, 19:18

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General

Target

dd3e38e1558b6efde8bd002f2071385b653c964c616d1a4c8af86bc11302b65b.dll
Size

223KB
MD5

f03a798f18a1795a273099991a0ab5ab
SHA1

0729c5e378cc2fdd48f4f2dcd9279bd25e224085
SHA256

dd3e38e1558b6efde8bd002f2071385b653c964c616d1a4c8af86bc11302b65b
SHA512

bff3221a87702e389d9a05d939b91544962305e2e9795a623b659a77ad822238a561d72688e7c8eac5e828a98202f0cdf698e23fb444ae8cff0cac8ae2f57093
SSDEEP

3072:6huf5AUWGIcvaJvK2agufdyZdlGZxIOtY81fs2lQBV+UdE+rECWp7hKK:ZBAUWGSVagufdjLIBV+UdvrEFp7hKK

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/0x00090000000233fa-1.dat	acprotect

Loads dropped DLL 4 IoCs

pid	Process
5024	rundll32.exe
5024	rundll32.exe
4812	WerFault.exe
4412	WerFault.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x00090000000233fa-1.dat	upx
behavioral2/memory/5024-7-0x0000000000DF0000-0x0000000000E20000-memory.dmp	upx
behavioral2/memory/5024-6-0x0000000000DF0000-0x0000000000E20000-memory.dmp	upx
behavioral2/memory/5024-13-0x0000000000DF0000-0x0000000000E20000-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 1 IoCs

pid	pid_target	Process	procid_target
4412	5024	WerFault.exe	83

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5024	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4140 wrote to memory of 5024	4140	rundll32.exe	83
PID 4140 wrote to memory of 5024	4140	rundll32.exe	83
PID 4140 wrote to memory of 5024	4140	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dd3e38e1558b6efde8bd002f2071385b653c964c616d1a4c8af86bc11302b65b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4140
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\dd3e38e1558b6efde8bd002f2071385b653c964c616d1a4c8af86bc11302b65b.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:5024
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5024 -s 672
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:4412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5024 -ip 5024
1⤵
- Loads dropped DLL
PID:4812

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/5024-7-0x0000000000DF0000-0x0000000000E20000-memory.dmp

Filesize
192KB

Download
memory/5024-6-0x0000000000DF0000-0x0000000000E20000-memory.dmp

Filesize
192KB

Download
memory/5024-13-0x0000000000DF0000-0x0000000000E20000-memory.dmp

Filesize
192KB

Download
memory/5024-11-0x0000000010000000-0x0000000010025000-memory.dmp

Filesize
148KB

Download