0fcbdc521de14aa767da0a42245825a1a36c7fb6a00e4521e8fb5b00aaa3556c

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
2880	arp.exe
2868	arp.exe
2892	arp.exe
2896	arp.exe
2848	arp.exe
2748	arp.exe
2532	arp.exe
2864	arp.exe
2760	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2996-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2996-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2996-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2556	2996	WerFault.exe	30

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	2996	rundll32.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 2996	2984	rundll32.exe	30
PID 2984 wrote to memory of 2996	2984	rundll32.exe	30
PID 2984 wrote to memory of 2996	2984	rundll32.exe	30
PID 2984 wrote to memory of 2996	2984	rundll32.exe	30
PID 2984 wrote to memory of 2996	2984	rundll32.exe	30
PID 2984 wrote to memory of 2996	2984	rundll32.exe	30
PID 2984 wrote to memory of 2996	2984	rundll32.exe	30
PID 2996 wrote to memory of 2532	2996	rundll32.exe	31
PID 2996 wrote to memory of 2532	2996	rundll32.exe	31
PID 2996 wrote to memory of 2532	2996	rundll32.exe	31
PID 2996 wrote to memory of 2532	2996	rundll32.exe	31
PID 2996 wrote to memory of 2556	2996	rundll32.exe	32
PID 2996 wrote to memory of 2556	2996	rundll32.exe	32
PID 2996 wrote to memory of 2556	2996	rundll32.exe	32
PID 2996 wrote to memory of 2556	2996	rundll32.exe	32
PID 2996 wrote to memory of 2864	2996	rundll32.exe	35
PID 2996 wrote to memory of 2864	2996	rundll32.exe	35
PID 2996 wrote to memory of 2864	2996	rundll32.exe	35
PID 2996 wrote to memory of 2864	2996	rundll32.exe	35
PID 2996 wrote to memory of 2880	2996	rundll32.exe	36
PID 2996 wrote to memory of 2880	2996	rundll32.exe	36
PID 2996 wrote to memory of 2880	2996	rundll32.exe	36
PID 2996 wrote to memory of 2880	2996	rundll32.exe	36
PID 2996 wrote to memory of 2868	2996	rundll32.exe	37
PID 2996 wrote to memory of 2868	2996	rundll32.exe	37
PID 2996 wrote to memory of 2868	2996	rundll32.exe	37
PID 2996 wrote to memory of 2868	2996	rundll32.exe	37
PID 2996 wrote to memory of 2892	2996	rundll32.exe	38
PID 2996 wrote to memory of 2892	2996	rundll32.exe	38
PID 2996 wrote to memory of 2892	2996	rundll32.exe	38
PID 2996 wrote to memory of 2892	2996	rundll32.exe	38
PID 2996 wrote to memory of 2896	2996	rundll32.exe	39
PID 2996 wrote to memory of 2896	2996	rundll32.exe	39
PID 2996 wrote to memory of 2896	2996	rundll32.exe	39
PID 2996 wrote to memory of 2896	2996	rundll32.exe	39
PID 2996 wrote to memory of 2848	2996	rundll32.exe	40
PID 2996 wrote to memory of 2848	2996	rundll32.exe	40
PID 2996 wrote to memory of 2848	2996	rundll32.exe	40
PID 2996 wrote to memory of 2848	2996	rundll32.exe	40
PID 2996 wrote to memory of 2760	2996	rundll32.exe	41
PID 2996 wrote to memory of 2760	2996	rundll32.exe	41
PID 2996 wrote to memory of 2760	2996	rundll32.exe	41
PID 2996 wrote to memory of 2760	2996	rundll32.exe	41
PID 2996 wrote to memory of 2748	2996	rundll32.exe	42
PID 2996 wrote to memory of 2748	2996	rundll32.exe	42
PID 2996 wrote to memory of 2748	2996	rundll32.exe	42
PID 2996 wrote to memory of 2748	2996	rundll32.exe	42

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0fcbdc521de14aa767da0a42245825a1a36c7fb6a00e4521e8fb5b00aaa3556cN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2984
- 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:2996
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2532
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 344
    3⤵
    - Program crash
    PID:2556
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 cf-1e-cb-43-4c-57
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2864
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 f7-b2-b6-12-6b-6e
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2880
- - C:\Windows\SysWOW64\arp.exe
    arp -s 136.243.76.170 3e-ba-de-ac-52-b2
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2868
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 65-4e-e5-f7-38-1b
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2892
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 f2-4a-f1-dd-44-59
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2896
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 57-bd-5d-3e-bb-98
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2848
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 d0-7c-b0-6e-56-8b
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2760
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 a7-da-e4-a0-f2-61
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2748

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

Replay Monitor

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Downloads

memory/2996-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2996-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2996-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download