3935e4657eecc40a26c28297fb43da88465aa01f454f3a7b3df2b76c91f4bd5f

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2024 00:52

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General

Target

3935e4657eecc40a26c28297fb43da88465aa01f454f3a7b3df2b76c91f4bd5f.dll
Size

80KB
MD5

024e5110e5808aa57bc1e3ad0c33f3d1
SHA1

9a53cd292e9f80af799eb3f5ecc1a052316bb5fe
SHA256

3935e4657eecc40a26c28297fb43da88465aa01f454f3a7b3df2b76c91f4bd5f
SHA512

ee77d53e156d482e8e692ae6e84c755253eae2803e5be8202fc9bc1cea4f960e6285662a19bd26600021e32e4904065c526148571a56b9da75cd6668096859a2
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEF4n7r:5dbwovEVyqgoZmZXWfIdQdRaefPX

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
3636	arp.exe
1632	arp.exe
2128	arp.exe
4424	arp.exe
2192	arp.exe
3952	arp.exe
4056	arp.exe
3528	arp.exe
2228	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4068-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/4068-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1008	4068	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 10 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	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4068	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4324 wrote to memory of 4068	4324	rundll32.exe	83
PID 4324 wrote to memory of 4068	4324	rundll32.exe	83
PID 4324 wrote to memory of 4068	4324	rundll32.exe	83
PID 4068 wrote to memory of 3528	4068	rundll32.exe	84
PID 4068 wrote to memory of 3528	4068	rundll32.exe	84
PID 4068 wrote to memory of 3528	4068	rundll32.exe	84
PID 4068 wrote to memory of 4056	4068	rundll32.exe	88
PID 4068 wrote to memory of 4056	4068	rundll32.exe	88
PID 4068 wrote to memory of 4056	4068	rundll32.exe	88
PID 4068 wrote to memory of 3952	4068	rundll32.exe	89
PID 4068 wrote to memory of 3952	4068	rundll32.exe	89
PID 4068 wrote to memory of 3952	4068	rundll32.exe	89
PID 4068 wrote to memory of 3636	4068	rundll32.exe	90
PID 4068 wrote to memory of 3636	4068	rundll32.exe	90
PID 4068 wrote to memory of 3636	4068	rundll32.exe	90
PID 4068 wrote to memory of 2192	4068	rundll32.exe	91
PID 4068 wrote to memory of 2192	4068	rundll32.exe	91
PID 4068 wrote to memory of 2192	4068	rundll32.exe	91
PID 4068 wrote to memory of 4424	4068	rundll32.exe	92
PID 4068 wrote to memory of 4424	4068	rundll32.exe	92
PID 4068 wrote to memory of 4424	4068	rundll32.exe	92
PID 4068 wrote to memory of 2228	4068	rundll32.exe	93
PID 4068 wrote to memory of 2228	4068	rundll32.exe	93
PID 4068 wrote to memory of 2228	4068	rundll32.exe	93
PID 4068 wrote to memory of 2128	4068	rundll32.exe	94
PID 4068 wrote to memory of 2128	4068	rundll32.exe	94
PID 4068 wrote to memory of 2128	4068	rundll32.exe	94
PID 4068 wrote to memory of 1632	4068	rundll32.exe	95
PID 4068 wrote to memory of 1632	4068	rundll32.exe	95
PID 4068 wrote to memory of 1632	4068	rundll32.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3935e4657eecc40a26c28297fb43da88465aa01f454f3a7b3df2b76c91f4bd5f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4324
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3935e4657eecc40a26c28297fb43da88465aa01f454f3a7b3df2b76c91f4bd5f.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4068
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3528
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 f4-1f-93-bb-4e-e3
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4056
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 d7-30-ce-ab-7a-fd
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3952
- - C:\Windows\SysWOW64\arp.exe
    arp -s 49.12.169.208 94-4d-22-89-3d-ed
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3636
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 3f-2a-15-3c-7c-56
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2192
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 9b-83-da-3a-1d-75
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4424
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 4e-3d-c6-84-dc-07
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2228
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 55-0d-46-db-10-2c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2128
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 91-77-59-15-b9-95
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1632
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4068 -s 728
    3⤵
    - Program crash
    PID:1008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4068 -ip 4068
1⤵
PID:2800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4068-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/4068-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download