5f1bdc14ca8d568993c8786c8b259fa57921beee87189ccc016adcf158066305

Analysis

max time kernel
142s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-12-2024 22:58

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General

Target

5f1bdc14ca8d568993c8786c8b259fa57921beee87189ccc016adcf158066305.dll
Size

80KB
MD5

d4fed2e5cebf432b62ea20a76ca31624
SHA1

e22ca4f896d0196295f422202bf061c5df817d57
SHA256

5f1bdc14ca8d568993c8786c8b259fa57921beee87189ccc016adcf158066305
SHA512

0ac0ddde049f9235fdad2c4f32b6750ab377d3b3efb9aa20c705d35ceb8cb9c08872bca312880359da69e33fd1f7e8b250b605ed6e2a8e5f536c7a071bf9f14e
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEz1:5dbwovEVyqgoZmZXWfIdQdRaefPe

Score

8^/10

discovery upx

Malware Config

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
16	3804	rundll32.exe
19	3804	rundll32.exe
21	3804	rundll32.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\e:	rundll32.exe

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
2612	arp.exe
3712	arp.exe
3076	arp.exe
3116	arp.exe
4564	arp.exe
2220	arp.exe
2396	arp.exe
1948	arp.exe
3940	arp.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3804-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/3804-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/3804-4-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/3804-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/3804-13-0x0000000010000000-0x0000000010033000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 11 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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3804	rundll32.exe
3804	rundll32.exe
3804	rundll32.exe
3804	rundll32.exe
3804	rundll32.exe
3804	rundll32.exe
3804	rundll32.exe
3804	rundll32.exe

Suspicious behavior: LoadsDriver 2 IoCs

pid	Process
656	Process not Found
656	Process not Found

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3804	rundll32.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1760 wrote to memory of 3804	1760	rundll32.exe	85
PID 1760 wrote to memory of 3804	1760	rundll32.exe	85
PID 1760 wrote to memory of 3804	1760	rundll32.exe	85
PID 3804 wrote to memory of 2612	3804	rundll32.exe	86
PID 3804 wrote to memory of 2612	3804	rundll32.exe	86
PID 3804 wrote to memory of 2612	3804	rundll32.exe	86
PID 3804 wrote to memory of 3116	3804	rundll32.exe	88
PID 3804 wrote to memory of 3116	3804	rundll32.exe	88
PID 3804 wrote to memory of 3116	3804	rundll32.exe	88
PID 3804 wrote to memory of 4564	3804	rundll32.exe	89
PID 3804 wrote to memory of 4564	3804	rundll32.exe	89
PID 3804 wrote to memory of 4564	3804	rundll32.exe	89
PID 3804 wrote to memory of 3076	3804	rundll32.exe	90
PID 3804 wrote to memory of 3076	3804	rundll32.exe	90
PID 3804 wrote to memory of 3076	3804	rundll32.exe	90
PID 3804 wrote to memory of 3940	3804	rundll32.exe	91
PID 3804 wrote to memory of 3940	3804	rundll32.exe	91
PID 3804 wrote to memory of 3940	3804	rundll32.exe	91
PID 3804 wrote to memory of 1948	3804	rundll32.exe	92
PID 3804 wrote to memory of 1948	3804	rundll32.exe	92
PID 3804 wrote to memory of 1948	3804	rundll32.exe	92
PID 3804 wrote to memory of 2396	3804	rundll32.exe	93
PID 3804 wrote to memory of 2396	3804	rundll32.exe	93
PID 3804 wrote to memory of 2396	3804	rundll32.exe	93
PID 3804 wrote to memory of 2220	3804	rundll32.exe	94
PID 3804 wrote to memory of 2220	3804	rundll32.exe	94
PID 3804 wrote to memory of 2220	3804	rundll32.exe	94
PID 3804 wrote to memory of 3712	3804	rundll32.exe	95
PID 3804 wrote to memory of 3712	3804	rundll32.exe	95
PID 3804 wrote to memory of 3712	3804	rundll32.exe	95
PID 3804 wrote to memory of 232	3804	rundll32.exe	105
PID 3804 wrote to memory of 232	3804	rundll32.exe	105
PID 3804 wrote to memory of 232	3804	rundll32.exe	105

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5f1bdc14ca8d568993c8786c8b259fa57921beee87189ccc016adcf158066305.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1760
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5f1bdc14ca8d568993c8786c8b259fa57921beee87189ccc016adcf158066305.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Enumerates connected drives
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3804
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2612
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 78-f5-6e-c3-aa-3a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3116
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 db-b8-25-f7-61-9a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4564
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.185 d8-fe-1e-0d-25-4a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3076
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 fc-c6-bb-6e-a4-ca
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3940
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 9b-c0-d5-21-e0-c5
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1948
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 bc-77-7f-b5-59-27
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2396
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 9a-ad-14-64-88-d4
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2220
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 12-06-2a-f2-6b-9b
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3712
- - C:\Windows\SysWOW64\arp.exe
    arp -d
    3⤵
    - System Location Discovery: System Language Discovery
    PID:232

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

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/3804-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3804-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3804-4-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3804-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3804-13-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download