87c6b7c28dc2e69ef82b01ebd2c1320925a8a33dee7cb4c99a86ee04df512991

Analysis

max time kernel
91s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-12-2024 05:36

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General

Target

87c6b7c28dc2e69ef82b01ebd2c1320925a8a33dee7cb4c99a86ee04df512991.dll
Size

80KB
MD5

f6dd6d74acc0e73ee3bbe8e002741d2c
SHA1

5d6262537dc1a0b12320f3254519608a4117fd77
SHA256

87c6b7c28dc2e69ef82b01ebd2c1320925a8a33dee7cb4c99a86ee04df512991
SHA512

f1b4b3327dc40db0bd8cd5bfd286254c5ee42a1161c6772c97fcff93823aada4d2e2011ce28b5af1183625e2ea070fb46310b5588f7fcfb3dec432c2f6484880
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEvMZ:5dbwovEVyqgoZmZXWfIdQdRaefPFZ

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
2244	arp.exe
2980	arp.exe
4564	arp.exe
4524	arp.exe
1272	arp.exe
1476	arp.exe
4008	arp.exe
548	arp.exe
2200	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1512-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/1512-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4300	1512	WerFault.exe	82

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	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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1512	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3824 wrote to memory of 1512	3824	rundll32.exe	82
PID 3824 wrote to memory of 1512	3824	rundll32.exe	82
PID 3824 wrote to memory of 1512	3824	rundll32.exe	82
PID 1512 wrote to memory of 548	1512	rundll32.exe	83
PID 1512 wrote to memory of 548	1512	rundll32.exe	83
PID 1512 wrote to memory of 548	1512	rundll32.exe	83
PID 1512 wrote to memory of 2244	1512	rundll32.exe	87
PID 1512 wrote to memory of 2244	1512	rundll32.exe	87
PID 1512 wrote to memory of 2244	1512	rundll32.exe	87
PID 1512 wrote to memory of 4564	1512	rundll32.exe	88
PID 1512 wrote to memory of 4564	1512	rundll32.exe	88
PID 1512 wrote to memory of 4564	1512	rundll32.exe	88
PID 1512 wrote to memory of 4008	1512	rundll32.exe	89
PID 1512 wrote to memory of 4008	1512	rundll32.exe	89
PID 1512 wrote to memory of 4008	1512	rundll32.exe	89
PID 1512 wrote to memory of 1476	1512	rundll32.exe	90
PID 1512 wrote to memory of 1476	1512	rundll32.exe	90
PID 1512 wrote to memory of 1476	1512	rundll32.exe	90
PID 1512 wrote to memory of 1272	1512	rundll32.exe	91
PID 1512 wrote to memory of 1272	1512	rundll32.exe	91
PID 1512 wrote to memory of 1272	1512	rundll32.exe	91
PID 1512 wrote to memory of 4524	1512	rundll32.exe	92
PID 1512 wrote to memory of 4524	1512	rundll32.exe	92
PID 1512 wrote to memory of 4524	1512	rundll32.exe	92
PID 1512 wrote to memory of 2980	1512	rundll32.exe	93
PID 1512 wrote to memory of 2980	1512	rundll32.exe	93
PID 1512 wrote to memory of 2980	1512	rundll32.exe	93
PID 1512 wrote to memory of 2200	1512	rundll32.exe	94
PID 1512 wrote to memory of 2200	1512	rundll32.exe	94
PID 1512 wrote to memory of 2200	1512	rundll32.exe	94

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\87c6b7c28dc2e69ef82b01ebd2c1320925a8a33dee7cb4c99a86ee04df512991.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3824
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\87c6b7c28dc2e69ef82b01ebd2c1320925a8a33dee7cb4c99a86ee04df512991.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1512
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:548
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 91-83-7d-4b-92-5c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2244
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 11-c3-cf-e0-3f-38
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4564
- - C:\Windows\SysWOW64\arp.exe
    arp -s 49.12.169.207 bb-6a-9e-f8-f8-53
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4008
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 58-50-29-8d-9e-df
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1476
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 64-ef-65-08-5e-78
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1272
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 d9-ef-54-ac-b6-fd
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4524
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 4b-4c-77-40-be-9d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2980
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 4d-5d-a1-9f-22-05
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2200
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1512 -s 728
    3⤵
    - Program crash
    PID:4300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1512 -ip 1512
1⤵
PID:3196

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/1512-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1512-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download