42c4411a711d0ac9d8398264c7385645537bd24b87bcb4d21f41232e5616ca14

Analysis

max time kernel
93s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 22:56

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General

Target

42c4411a711d0ac9d8398264c7385645537bd24b87bcb4d21f41232e5616ca14N.dll
Size

80KB
MD5

d2dc671803c0016d64374ea527075270
SHA1

1a2b8676c0eb91335bd7a5d85d54d1f99c463b03
SHA256

42c4411a711d0ac9d8398264c7385645537bd24b87bcb4d21f41232e5616ca14
SHA512

cf5b5148dc9dc22291c5f621b94e83db0c75b6672c2f475f516dccfe376d66d011ef3cf0dbe42f22b7a7fbefe2fdb5bdd911f42daea4f389894bced68c647ced
SSDEEP

1536:uIcs6msUvrh8ErMInQ+4cw9NVWfjaRkE4LEl8B60Y2lfxxHZPEvB+2i:dcs6v68Erj3w9zWf+SEFuk0/pfPt2i

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
4808	arp.exe
1236	arp.exe
1164	arp.exe
1744	arp.exe
1540	arp.exe
2604	arp.exe
2456	arp.exe
4420	arp.exe
208	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4740-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/4740-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3600	4740	WerFault.exe	82

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	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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4740	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 4740	2236	rundll32.exe	82
PID 2236 wrote to memory of 4740	2236	rundll32.exe	82
PID 2236 wrote to memory of 4740	2236	rundll32.exe	82
PID 4740 wrote to memory of 2456	4740	rundll32.exe	84
PID 4740 wrote to memory of 2456	4740	rundll32.exe	84
PID 4740 wrote to memory of 2456	4740	rundll32.exe	84
PID 4740 wrote to memory of 1164	4740	rundll32.exe	87
PID 4740 wrote to memory of 1164	4740	rundll32.exe	87
PID 4740 wrote to memory of 1164	4740	rundll32.exe	87
PID 4740 wrote to memory of 1744	4740	rundll32.exe	88
PID 4740 wrote to memory of 1744	4740	rundll32.exe	88
PID 4740 wrote to memory of 1744	4740	rundll32.exe	88
PID 4740 wrote to memory of 4420	4740	rundll32.exe	89
PID 4740 wrote to memory of 4420	4740	rundll32.exe	89
PID 4740 wrote to memory of 4420	4740	rundll32.exe	89
PID 4740 wrote to memory of 208	4740	rundll32.exe	90
PID 4740 wrote to memory of 208	4740	rundll32.exe	90
PID 4740 wrote to memory of 208	4740	rundll32.exe	90
PID 4740 wrote to memory of 1540	4740	rundll32.exe	91
PID 4740 wrote to memory of 1540	4740	rundll32.exe	91
PID 4740 wrote to memory of 1540	4740	rundll32.exe	91
PID 4740 wrote to memory of 2604	4740	rundll32.exe	92
PID 4740 wrote to memory of 2604	4740	rundll32.exe	92
PID 4740 wrote to memory of 2604	4740	rundll32.exe	92
PID 4740 wrote to memory of 4808	4740	rundll32.exe	93
PID 4740 wrote to memory of 4808	4740	rundll32.exe	93
PID 4740 wrote to memory of 4808	4740	rundll32.exe	93
PID 4740 wrote to memory of 1236	4740	rundll32.exe	94
PID 4740 wrote to memory of 1236	4740	rundll32.exe	94
PID 4740 wrote to memory of 1236	4740	rundll32.exe	94

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\42c4411a711d0ac9d8398264c7385645537bd24b87bcb4d21f41232e5616ca14N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\42c4411a711d0ac9d8398264c7385645537bd24b87bcb4d21f41232e5616ca14N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4740
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2456
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 ac-b2-69-d3-2c-12
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1164
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 a0-74-74-fa-7f-6f
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1744
- - C:\Windows\SysWOW64\arp.exe
    arp -s 136.243.69.123 e5-ec-df-22-c7-45
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4420
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 d0-31-e9-02-10-cd
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:208
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 81-43-c6-06-f2-41
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1540
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 80-09-22-f6-28-d4
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2604
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 91-2c-b0-49-4f-4a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4808
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 a7-4f-e8-b8-33-05
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1236
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 708
    3⤵
    - Program crash
    PID:3600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4740 -ip 4740
1⤵
PID:3584

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/4740-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/4740-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download