a9019c95b3a7927c436cb3fc7701e0c507eb44d3437bc6ab5ef8cdaec97e31c7

Analysis

max time kernel
95s
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
31-12-2024 14:45

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General

Target

a9019c95b3a7927c436cb3fc7701e0c507eb44d3437bc6ab5ef8cdaec97e31c7.dll
Size

80KB
MD5

700b538dce9ae1f566ac5a8d51a31c43
SHA1

a1bf86938457efcad0bdcf19490bfdf5078b7146
SHA256

a9019c95b3a7927c436cb3fc7701e0c507eb44d3437bc6ab5ef8cdaec97e31c7
SHA512

2f759f61d8672b438417754647a6ab127e9f236a0e92a2ee2074b1211fe76ff074cb584fc3480a5909eed491f4e05975d3a2f72e1107df5df94f6e6d529e3913
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEe5LTs:5dbwovEVyqgoZmZXWfIdQdRaefPD5c

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
4272	arp.exe
3264	arp.exe
4460	arp.exe
4224	arp.exe
4084	arp.exe
4996	arp.exe
852	arp.exe
3412	arp.exe
4260	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4580-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/4580-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3800	4580	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	4580	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4456 wrote to memory of 4580	4456	rundll32.exe	83
PID 4456 wrote to memory of 4580	4456	rundll32.exe	83
PID 4456 wrote to memory of 4580	4456	rundll32.exe	83
PID 4580 wrote to memory of 4272	4580	rundll32.exe	85
PID 4580 wrote to memory of 4272	4580	rundll32.exe	85
PID 4580 wrote to memory of 4272	4580	rundll32.exe	85
PID 4580 wrote to memory of 4996	4580	rundll32.exe	88
PID 4580 wrote to memory of 4996	4580	rundll32.exe	88
PID 4580 wrote to memory of 4996	4580	rundll32.exe	88
PID 4580 wrote to memory of 4084	4580	rundll32.exe	89
PID 4580 wrote to memory of 4084	4580	rundll32.exe	89
PID 4580 wrote to memory of 4084	4580	rundll32.exe	89
PID 4580 wrote to memory of 852	4580	rundll32.exe	90
PID 4580 wrote to memory of 852	4580	rundll32.exe	90
PID 4580 wrote to memory of 852	4580	rundll32.exe	90
PID 4580 wrote to memory of 4260	4580	rundll32.exe	91
PID 4580 wrote to memory of 4260	4580	rundll32.exe	91
PID 4580 wrote to memory of 4260	4580	rundll32.exe	91
PID 4580 wrote to memory of 4224	4580	rundll32.exe	92
PID 4580 wrote to memory of 4224	4580	rundll32.exe	92
PID 4580 wrote to memory of 4224	4580	rundll32.exe	92
PID 4580 wrote to memory of 4460	4580	rundll32.exe	93
PID 4580 wrote to memory of 4460	4580	rundll32.exe	93
PID 4580 wrote to memory of 4460	4580	rundll32.exe	93
PID 4580 wrote to memory of 3412	4580	rundll32.exe	94
PID 4580 wrote to memory of 3412	4580	rundll32.exe	94
PID 4580 wrote to memory of 3412	4580	rundll32.exe	94
PID 4580 wrote to memory of 3264	4580	rundll32.exe	95
PID 4580 wrote to memory of 3264	4580	rundll32.exe	95
PID 4580 wrote to memory of 3264	4580	rundll32.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9019c95b3a7927c436cb3fc7701e0c507eb44d3437bc6ab5ef8cdaec97e31c7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4456
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9019c95b3a7927c436cb3fc7701e0c507eb44d3437bc6ab5ef8cdaec97e31c7.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4580
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4272
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 7b-45-09-d5-6b-b9
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4996
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 85-46-59-00-09-c7
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4084
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.182 3b-2b-c4-54-de-e5
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:852
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 6f-3c-3e-d3-23-ed
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4260
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 c4-7f-93-0f-d1-7d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4224
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 17-16-cc-38-73-89
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4460
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 51-27-0c-a4-cb-a2
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3412
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 cc-df-63-b6-07-11
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3264
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4580 -s 704
    3⤵
    - Program crash
    PID:3800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4580 -ip 4580
1⤵
PID:4088

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/4580-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/4580-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download