e7bcb00840c4559fbb1844073a5ba71a72e6494cea5453f86b02a1a1515dd2e1

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2024 04:12

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General

Target

e7bcb00840c4559fbb1844073a5ba71a72e6494cea5453f86b02a1a1515dd2e1.dll
Size

80KB
MD5

f13535b31587cfacee97ae49a40a9382
SHA1

8fd8d8807031bca1bee177361adfcfcd4dee7e38
SHA256

e7bcb00840c4559fbb1844073a5ba71a72e6494cea5453f86b02a1a1515dd2e1
SHA512

4b269fd2bc4fad29317a7ced82e78b97d854ae48c61833b6c678914b357bdba67a767367260ee40e35b62932abbab2c568a38786fbd1dc70275c1cbc77522ba2
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEZZocyq:5dbwovEVyqgoZmZXWfIdQdRaefPlo

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
1544	arp.exe
2532	arp.exe
4868	arp.exe
3688	arp.exe
1840	arp.exe
2796	arp.exe
4060	arp.exe
4924	arp.exe
4920	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1148-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/1148-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1748	1148	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	1148	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 1148	2300	rundll32.exe	83
PID 2300 wrote to memory of 1148	2300	rundll32.exe	83
PID 2300 wrote to memory of 1148	2300	rundll32.exe	83
PID 1148 wrote to memory of 1544	1148	rundll32.exe	85
PID 1148 wrote to memory of 1544	1148	rundll32.exe	85
PID 1148 wrote to memory of 1544	1148	rundll32.exe	85
PID 1148 wrote to memory of 2796	1148	rundll32.exe	88
PID 1148 wrote to memory of 2796	1148	rundll32.exe	88
PID 1148 wrote to memory of 2796	1148	rundll32.exe	88
PID 1148 wrote to memory of 1840	1148	rundll32.exe	89
PID 1148 wrote to memory of 1840	1148	rundll32.exe	89
PID 1148 wrote to memory of 1840	1148	rundll32.exe	89
PID 1148 wrote to memory of 3688	1148	rundll32.exe	90
PID 1148 wrote to memory of 3688	1148	rundll32.exe	90
PID 1148 wrote to memory of 3688	1148	rundll32.exe	90
PID 1148 wrote to memory of 4920	1148	rundll32.exe	91
PID 1148 wrote to memory of 4920	1148	rundll32.exe	91
PID 1148 wrote to memory of 4920	1148	rundll32.exe	91
PID 1148 wrote to memory of 4924	1148	rundll32.exe	92
PID 1148 wrote to memory of 4924	1148	rundll32.exe	92
PID 1148 wrote to memory of 4924	1148	rundll32.exe	92
PID 1148 wrote to memory of 4868	1148	rundll32.exe	93
PID 1148 wrote to memory of 4868	1148	rundll32.exe	93
PID 1148 wrote to memory of 4868	1148	rundll32.exe	93
PID 1148 wrote to memory of 4060	1148	rundll32.exe	94
PID 1148 wrote to memory of 4060	1148	rundll32.exe	94
PID 1148 wrote to memory of 4060	1148	rundll32.exe	94
PID 1148 wrote to memory of 2532	1148	rundll32.exe	95
PID 1148 wrote to memory of 2532	1148	rundll32.exe	95
PID 1148 wrote to memory of 2532	1148	rundll32.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e7bcb00840c4559fbb1844073a5ba71a72e6494cea5453f86b02a1a1515dd2e1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e7bcb00840c4559fbb1844073a5ba71a72e6494cea5453f86b02a1a1515dd2e1.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1148
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1544
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 09-97-ad-2d-42-44
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2796
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 93-4e-76-d6-0c-d1
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1840
- - C:\Windows\SysWOW64\arp.exe
    arp -s 136.243.76.173 ee-9e-a4-9c-b8-8c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3688
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 f3-42-a5-23-e9-f5
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4920
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 c9-88-21-d3-9b-75
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4924
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 80-fa-a1-7b-c4-52
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4868
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 d8-92-f6-04-95-6d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4060
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 fb-b0-68-86-9f-62
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2532
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1148 -s 712
    3⤵
    - Program crash
    PID:1748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1148 -ip 1148
1⤵
PID:3900

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/1148-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1148-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download