b9b2ab4f30ce778a786bf397dc9d5b7f610ee0f8a670aaff2e697ff27ab8eb1c

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
19-12-2024 00:04

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General

Target

b9b2ab4f30ce778a786bf397dc9d5b7f610ee0f8a670aaff2e697ff27ab8eb1cN.dll
Size

80KB
MD5

e990590f2e8cb77c0ca6c8a2a6db9ee0
SHA1

db60901e2255b174c85f764761560aef25f9d0b3
SHA256

b9b2ab4f30ce778a786bf397dc9d5b7f610ee0f8a670aaff2e697ff27ab8eb1c
SHA512

df210441d54e3ec6d2c5bf7f4457840095993af138b7f05640f507bbe41c0991f2c3d89f1267e96420f7d2fc3428c1e4d9d0b8d6c46a402cca856ebed7cfb0d8
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEeWpQW:5dbwovEVyqgoZmZXWfIdQdRaefPrEN

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
1896	arp.exe
4312	arp.exe
4332	arp.exe
4872	arp.exe
2000	arp.exe
4488	arp.exe
2220	arp.exe
2940	arp.exe
4752	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2796-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/2796-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1892	2796	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	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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2796	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1436 wrote to memory of 2796	1436	rundll32.exe	83
PID 1436 wrote to memory of 2796	1436	rundll32.exe	83
PID 1436 wrote to memory of 2796	1436	rundll32.exe	83
PID 2796 wrote to memory of 4872	2796	rundll32.exe	85
PID 2796 wrote to memory of 4872	2796	rundll32.exe	85
PID 2796 wrote to memory of 4872	2796	rundll32.exe	85
PID 2796 wrote to memory of 4332	2796	rundll32.exe	88
PID 2796 wrote to memory of 4332	2796	rundll32.exe	88
PID 2796 wrote to memory of 4332	2796	rundll32.exe	88
PID 2796 wrote to memory of 4752	2796	rundll32.exe	89
PID 2796 wrote to memory of 4752	2796	rundll32.exe	89
PID 2796 wrote to memory of 4752	2796	rundll32.exe	89
PID 2796 wrote to memory of 2940	2796	rundll32.exe	90
PID 2796 wrote to memory of 2940	2796	rundll32.exe	90
PID 2796 wrote to memory of 2940	2796	rundll32.exe	90
PID 2796 wrote to memory of 2220	2796	rundll32.exe	91
PID 2796 wrote to memory of 2220	2796	rundll32.exe	91
PID 2796 wrote to memory of 2220	2796	rundll32.exe	91
PID 2796 wrote to memory of 4312	2796	rundll32.exe	92
PID 2796 wrote to memory of 4312	2796	rundll32.exe	92
PID 2796 wrote to memory of 4312	2796	rundll32.exe	92
PID 2796 wrote to memory of 1896	2796	rundll32.exe	93
PID 2796 wrote to memory of 1896	2796	rundll32.exe	93
PID 2796 wrote to memory of 1896	2796	rundll32.exe	93
PID 2796 wrote to memory of 4488	2796	rundll32.exe	94
PID 2796 wrote to memory of 4488	2796	rundll32.exe	94
PID 2796 wrote to memory of 4488	2796	rundll32.exe	94
PID 2796 wrote to memory of 2000	2796	rundll32.exe	95
PID 2796 wrote to memory of 2000	2796	rundll32.exe	95
PID 2796 wrote to memory of 2000	2796	rundll32.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9b2ab4f30ce778a786bf397dc9d5b7f610ee0f8a670aaff2e697ff27ab8eb1cN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1436
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9b2ab4f30ce778a786bf397dc9d5b7f610ee0f8a670aaff2e697ff27ab8eb1cN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2796
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4872
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 c9-00-90-dd-71-ab
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4332
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 47-fe-ff-01-73-14
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4752
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.181 58-b0-75-7f-8f-0c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2940
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 19-f1-95-b5-01-45
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2220
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 90-e7-ee-77-0e-5c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4312
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 42-ad-9a-5c-c2-c7
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1896
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 d6-3e-17-f5-59-87
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4488
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 82-83-6f-e9-b8-d4
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2000
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2796 -s 704
    3⤵
    - Program crash
    PID:1892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2796 -ip 2796
1⤵
PID:4076

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/2796-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2796-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download