0fcbdc521de14aa767da0a42245825a1a36c7fb6a00e4521e8fb5b00aaa3556c

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
04-01-2025 13:37

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General

Target

0fcbdc521de14aa767da0a42245825a1a36c7fb6a00e4521e8fb5b00aaa3556cN.dll
Size

80KB
MD5

a5a27cf041f762553660f1ebbdb61dd0
SHA1

840862820b3f76b9ce7ee81adfbefa25a5a719f0
SHA256

0fcbdc521de14aa767da0a42245825a1a36c7fb6a00e4521e8fb5b00aaa3556c
SHA512

a0f4afca8123e49999c3e5bb4ff0e652f977fdc6e200df57d93cb088db0fea374643f0a34028272ec38974aa6dd70efa6003cb87fcbdc55d3ba92a558e5ad41f
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPE1+q84EGHy:5dbwovEVyqgoZmZXWfIdQdRaefP+wuy

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
1316	arp.exe
2020	arp.exe
2852	arp.exe
864	arp.exe
4756	arp.exe
3664	arp.exe
1872	arp.exe
1944	arp.exe
5040	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1988-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/1988-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3052	1988	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	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	1988	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3084 wrote to memory of 1988	3084	rundll32.exe	83
PID 3084 wrote to memory of 1988	3084	rundll32.exe	83
PID 3084 wrote to memory of 1988	3084	rundll32.exe	83
PID 1988 wrote to memory of 1316	1988	rundll32.exe	85
PID 1988 wrote to memory of 1316	1988	rundll32.exe	85
PID 1988 wrote to memory of 1316	1988	rundll32.exe	85
PID 1988 wrote to memory of 5040	1988	rundll32.exe	88
PID 1988 wrote to memory of 5040	1988	rundll32.exe	88
PID 1988 wrote to memory of 5040	1988	rundll32.exe	88
PID 1988 wrote to memory of 4756	1988	rundll32.exe	89
PID 1988 wrote to memory of 4756	1988	rundll32.exe	89
PID 1988 wrote to memory of 4756	1988	rundll32.exe	89
PID 1988 wrote to memory of 1944	1988	rundll32.exe	90
PID 1988 wrote to memory of 1944	1988	rundll32.exe	90
PID 1988 wrote to memory of 1944	1988	rundll32.exe	90
PID 1988 wrote to memory of 864	1988	rundll32.exe	91
PID 1988 wrote to memory of 864	1988	rundll32.exe	91
PID 1988 wrote to memory of 864	1988	rundll32.exe	91
PID 1988 wrote to memory of 1872	1988	rundll32.exe	92
PID 1988 wrote to memory of 1872	1988	rundll32.exe	92
PID 1988 wrote to memory of 1872	1988	rundll32.exe	92
PID 1988 wrote to memory of 2852	1988	rundll32.exe	93
PID 1988 wrote to memory of 2852	1988	rundll32.exe	93
PID 1988 wrote to memory of 2852	1988	rundll32.exe	93
PID 1988 wrote to memory of 2020	1988	rundll32.exe	94
PID 1988 wrote to memory of 2020	1988	rundll32.exe	94
PID 1988 wrote to memory of 2020	1988	rundll32.exe	94
PID 1988 wrote to memory of 3664	1988	rundll32.exe	95
PID 1988 wrote to memory of 3664	1988	rundll32.exe	95
PID 1988 wrote to memory of 3664	1988	rundll32.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0fcbdc521de14aa767da0a42245825a1a36c7fb6a00e4521e8fb5b00aaa3556cN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3084
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\0fcbdc521de14aa767da0a42245825a1a36c7fb6a00e4521e8fb5b00aaa3556cN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1988
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1316
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 f7-75-16-42-14-53
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:5040
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 71-de-22-0e-eb-ff
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4756
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.182 65-b3-a0-66-02-54
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1944
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 70-b5-8c-70-d0-ff
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:864
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 ab-eb-fa-39-81-8c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1872
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 5f-90-9f-b5-26-28
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2852
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 ec-a0-73-b1-39-fd
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2020
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 69-72-56-70-8e-00
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3664
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1988 -s 712
    3⤵
    - Program crash
    PID:3052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1988 -ip 1988
1⤵
PID:4808

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/1988-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

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memory/1988-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

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