de51bcda784d935dea69ab8e2ed85b976eb27684ece11575f653e42e55dd54bb

Analysis

max time kernel
96s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 01:08

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General

Target

de51bcda784d935dea69ab8e2ed85b976eb27684ece11575f653e42e55dd54bbN.dll
Size

80KB
MD5

e3fb233f868130c9d32848fdbcad4ac0
SHA1

c2cb0952d2681fea81ade9c51e7041c48ad7156f
SHA256

de51bcda784d935dea69ab8e2ed85b976eb27684ece11575f653e42e55dd54bb
SHA512

2a968b8e647e66d3ff9d7d8e7e54853ba3cd0ae3496769e09a4f83e461f0c406a0c0f80122dd5050a23502f97022b3ea66aaf153650bea71fdcf5224fa9843f0
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEJl+qo6:5dbwovEVyqgoZmZXWfIdQdRaefPocq

Score

6^/10

discovery upx

Malware Config

Signatures

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
2256	arp.exe
3600	arp.exe
644	arp.exe
3892	arp.exe
2776	arp.exe
1528	arp.exe
2248	arp.exe
2680	arp.exe
4884	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3360-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/3360-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
744	3360	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	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
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	3360	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4972 wrote to memory of 3360	4972	rundll32.exe	83
PID 4972 wrote to memory of 3360	4972	rundll32.exe	83
PID 4972 wrote to memory of 3360	4972	rundll32.exe	83
PID 3360 wrote to memory of 2256	3360	rundll32.exe	85
PID 3360 wrote to memory of 2256	3360	rundll32.exe	85
PID 3360 wrote to memory of 2256	3360	rundll32.exe	85
PID 3360 wrote to memory of 1528	3360	rundll32.exe	88
PID 3360 wrote to memory of 1528	3360	rundll32.exe	88
PID 3360 wrote to memory of 1528	3360	rundll32.exe	88
PID 3360 wrote to memory of 3600	3360	rundll32.exe	89
PID 3360 wrote to memory of 3600	3360	rundll32.exe	89
PID 3360 wrote to memory of 3600	3360	rundll32.exe	89
PID 3360 wrote to memory of 2248	3360	rundll32.exe	90
PID 3360 wrote to memory of 2248	3360	rundll32.exe	90
PID 3360 wrote to memory of 2248	3360	rundll32.exe	90
PID 3360 wrote to memory of 4884	3360	rundll32.exe	91
PID 3360 wrote to memory of 4884	3360	rundll32.exe	91
PID 3360 wrote to memory of 4884	3360	rundll32.exe	91
PID 3360 wrote to memory of 2776	3360	rundll32.exe	92
PID 3360 wrote to memory of 2776	3360	rundll32.exe	92
PID 3360 wrote to memory of 2776	3360	rundll32.exe	92
PID 3360 wrote to memory of 644	3360	rundll32.exe	93
PID 3360 wrote to memory of 644	3360	rundll32.exe	93
PID 3360 wrote to memory of 644	3360	rundll32.exe	93
PID 3360 wrote to memory of 2680	3360	rundll32.exe	94
PID 3360 wrote to memory of 2680	3360	rundll32.exe	94
PID 3360 wrote to memory of 2680	3360	rundll32.exe	94
PID 3360 wrote to memory of 3892	3360	rundll32.exe	95
PID 3360 wrote to memory of 3892	3360	rundll32.exe	95
PID 3360 wrote to memory of 3892	3360	rundll32.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\de51bcda784d935dea69ab8e2ed85b976eb27684ece11575f653e42e55dd54bbN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4972
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\de51bcda784d935dea69ab8e2ed85b976eb27684ece11575f653e42e55dd54bbN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3360
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2256
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 18-ce-f5-57-8c-35
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1528
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 39-98-83-5e-e6-e6
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3600
- - C:\Windows\SysWOW64\arp.exe
    arp -s 49.12.169.208 bc-dd-27-49-88-6a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2248
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 e4-b9-70-b5-8a-4c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4884
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 6c-fb-a3-08-d7-fd
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2776
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 f5-29-8e-aa-a3-df
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:644
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 2a-f7-df-68-6d-6b
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2680
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 84-84-3a-98-23-4c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3892
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3360 -s 704
    3⤵
    - Program crash
    PID:744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3360 -ip 3360
1⤵
PID:536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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/3360-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3360-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download