a032ef3dfbd2fba9aa86854095801c84d641e6019efa8bf80244a32c5308e40d

Analysis

max time kernel
96s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2024 10:19

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General

Target

a032ef3dfbd2fba9aa86854095801c84d641e6019efa8bf80244a32c5308e40d.dll
Size

80KB
MD5

8b0386d1da743cd68938e9bc3ea41877
SHA1

370571c3b2e9e26a96f309056d3c14744f65615a
SHA256

a032ef3dfbd2fba9aa86854095801c84d641e6019efa8bf80244a32c5308e40d
SHA512

b9afa0bad92a2cc89aad615cec88b9a18dd60925a7755e6d94c0120d8f3a8b302db322ff03ba74442725bb760c3700d8d14f2b6499eb79ce1955af8870265969
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEeWpQi:5dbwovEVyqgoZmZXWfIdQdRaefPrEv

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
4152	arp.exe
100	arp.exe
3724	arp.exe
760	arp.exe
2248	arp.exe
3804	arp.exe
1172	arp.exe
3980	arp.exe
3436	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4332-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/4332-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4868	4332	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	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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4332	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3196 wrote to memory of 4332	3196	rundll32.exe	83
PID 3196 wrote to memory of 4332	3196	rundll32.exe	83
PID 3196 wrote to memory of 4332	3196	rundll32.exe	83
PID 4332 wrote to memory of 3436	4332	rundll32.exe	85
PID 4332 wrote to memory of 3436	4332	rundll32.exe	85
PID 4332 wrote to memory of 3436	4332	rundll32.exe	85
PID 4332 wrote to memory of 760	4332	rundll32.exe	88
PID 4332 wrote to memory of 760	4332	rundll32.exe	88
PID 4332 wrote to memory of 760	4332	rundll32.exe	88
PID 4332 wrote to memory of 100	4332	rundll32.exe	89
PID 4332 wrote to memory of 100	4332	rundll32.exe	89
PID 4332 wrote to memory of 100	4332	rundll32.exe	89
PID 4332 wrote to memory of 3724	4332	rundll32.exe	90
PID 4332 wrote to memory of 3724	4332	rundll32.exe	90
PID 4332 wrote to memory of 3724	4332	rundll32.exe	90
PID 4332 wrote to memory of 2248	4332	rundll32.exe	91
PID 4332 wrote to memory of 2248	4332	rundll32.exe	91
PID 4332 wrote to memory of 2248	4332	rundll32.exe	91
PID 4332 wrote to memory of 3804	4332	rundll32.exe	92
PID 4332 wrote to memory of 3804	4332	rundll32.exe	92
PID 4332 wrote to memory of 3804	4332	rundll32.exe	92
PID 4332 wrote to memory of 1172	4332	rundll32.exe	93
PID 4332 wrote to memory of 1172	4332	rundll32.exe	93
PID 4332 wrote to memory of 1172	4332	rundll32.exe	93
PID 4332 wrote to memory of 4152	4332	rundll32.exe	94
PID 4332 wrote to memory of 4152	4332	rundll32.exe	94
PID 4332 wrote to memory of 4152	4332	rundll32.exe	94
PID 4332 wrote to memory of 3980	4332	rundll32.exe	95
PID 4332 wrote to memory of 3980	4332	rundll32.exe	95
PID 4332 wrote to memory of 3980	4332	rundll32.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a032ef3dfbd2fba9aa86854095801c84d641e6019efa8bf80244a32c5308e40d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3196
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a032ef3dfbd2fba9aa86854095801c84d641e6019efa8bf80244a32c5308e40d.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4332
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3436
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 f1-48-e4-f4-ef-ba
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:760
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 37-63-71-ba-e6-26
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:100
- - C:\Windows\SysWOW64\arp.exe
    arp -s 136.243.76.173 eb-0a-79-91-a8-ed
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3724
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 c8-29-2c-5a-44-41
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2248
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 6f-13-b3-d4-c3-5b
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3804
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 01-c9-97-a4-55-98
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1172
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 b7-a0-b7-2c-d6-21
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4152
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 1b-56-bd-90-01-ae
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3980
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4332 -s 692
    3⤵
    - Program crash
    PID:4868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4332 -ip 4332
1⤵
PID:1148

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/4332-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/4332-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download