3231dec858ba584cfb09317d5fc7966ce322949f6f45d7df242253d7f2983f74

Analysis

max time kernel
93s
max time network
95s
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 09:22

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General

Target

3231dec858ba584cfb09317d5fc7966ce322949f6f45d7df242253d7f2983f74.dll
Size

80KB
MD5

3d1382f2f19167caecd7b7ab693a4436
SHA1

695cbc23e54f66c55bd461cb8dd39c036f5e0f47
SHA256

3231dec858ba584cfb09317d5fc7966ce322949f6f45d7df242253d7f2983f74
SHA512

f868da844f3c54b2895a0fb3edbf25da7286477c65a6fc10486f391b269f8b64c858dba3bda69b844259264f1b6d7eea15f33c82477f11b055a2923d7c07fdbb
SSDEEP

1536:uIcs6msUvrh8ErMInQ+4cw9NVWfjaRkE4LEl8B60Y2lfxxHZPEvB+2C:dcs6v68Erj3w9zWf+SEFuk0/pfPt2C

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
3220	arp.exe
920	arp.exe
3932	arp.exe
2836	arp.exe
416	arp.exe
4364	arp.exe
4088	arp.exe
3056	arp.exe
2036	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/228-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/228-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3168	228	WerFault.exe	84

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	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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	228	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3492 wrote to memory of 228	3492	rundll32.exe	84
PID 3492 wrote to memory of 228	3492	rundll32.exe	84
PID 3492 wrote to memory of 228	3492	rundll32.exe	84
PID 228 wrote to memory of 3220	228	rundll32.exe	85
PID 228 wrote to memory of 3220	228	rundll32.exe	85
PID 228 wrote to memory of 3220	228	rundll32.exe	85
PID 228 wrote to memory of 416	228	rundll32.exe	89
PID 228 wrote to memory of 416	228	rundll32.exe	89
PID 228 wrote to memory of 416	228	rundll32.exe	89
PID 228 wrote to memory of 4364	228	rundll32.exe	90
PID 228 wrote to memory of 4364	228	rundll32.exe	90
PID 228 wrote to memory of 4364	228	rundll32.exe	90
PID 228 wrote to memory of 2836	228	rundll32.exe	91
PID 228 wrote to memory of 2836	228	rundll32.exe	91
PID 228 wrote to memory of 2836	228	rundll32.exe	91
PID 228 wrote to memory of 2036	228	rundll32.exe	92
PID 228 wrote to memory of 2036	228	rundll32.exe	92
PID 228 wrote to memory of 2036	228	rundll32.exe	92
PID 228 wrote to memory of 3932	228	rundll32.exe	93
PID 228 wrote to memory of 3932	228	rundll32.exe	93
PID 228 wrote to memory of 3932	228	rundll32.exe	93
PID 228 wrote to memory of 3056	228	rundll32.exe	94
PID 228 wrote to memory of 3056	228	rundll32.exe	94
PID 228 wrote to memory of 3056	228	rundll32.exe	94
PID 228 wrote to memory of 4088	228	rundll32.exe	95
PID 228 wrote to memory of 4088	228	rundll32.exe	95
PID 228 wrote to memory of 4088	228	rundll32.exe	95
PID 228 wrote to memory of 920	228	rundll32.exe	96
PID 228 wrote to memory of 920	228	rundll32.exe	96
PID 228 wrote to memory of 920	228	rundll32.exe	96

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3231dec858ba584cfb09317d5fc7966ce322949f6f45d7df242253d7f2983f74.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3492
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3231dec858ba584cfb09317d5fc7966ce322949f6f45d7df242253d7f2983f74.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:228
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3220
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 99-77-f2-09-ca-49
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:416
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 08-75-e3-90-52-cd
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4364
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.184 7d-b8-18-c5-42-a4
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2836
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 8b-5a-52-d0-30-f2
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2036
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 ce-79-15-71-73-4d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3932
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 76-89-11-61-d0-ff
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3056
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 9c-07-60-0c-6e-e3
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4088
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 88-3e-1e-93-a6-f2
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:920
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 228 -s 728
    3⤵
    - Program crash
    PID:3168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 228 -ip 228
1⤵
PID:2420

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/228-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

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memory/228-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

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