52020736bbc3849801a4c359e70d8db756437f9a708be11555d1c760c9ae51dc

Analysis

max time kernel
143s
max time network
144s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 08:49

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General

Target

52020736bbc3849801a4c359e70d8db756437f9a708be11555d1c760c9ae51dc.dll
Size

80KB
MD5

1f69814d7e23d502f4dcb6977e6f7db6
SHA1

b10acd416af35cc77dabd936bef3427833130d7d
SHA256

52020736bbc3849801a4c359e70d8db756437f9a708be11555d1c760c9ae51dc
SHA512

e50c857c17a9d175cdf84e1d601c5b2990c5d5e869945573aaff31858647514406673207850db07d733107b0e1e6d3970a432e8c591eaa050dafded7ea7ada86
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEJl+qoq:5dbwovEVyqgoZmZXWfIdQdRaefPoca

Score

8^/10

discovery upx

Malware Config

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
5	2520	rundll32.exe
8	2520	rundll32.exe
9	2520	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
2420	arp.exe
2116	arp.exe
2220	arp.exe
2372	arp.exe
1656	arp.exe
2364	arp.exe
1824	arp.exe
1660	arp.exe
2724	arp.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2520-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2520-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2520-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2520-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2520-6-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2520-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2520-13-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2520-15-0x0000000010000000-0x0000000010033000-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 4 IoCs

pid	Process
2520	rundll32.exe
2520	rundll32.exe
2520	rundll32.exe
2520	rundll32.exe

Suspicious behavior: LoadsDriver 2 IoCs

pid	Process
472	Process not Found
472	Process not Found

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2520	rundll32.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 2520	3056	rundll32.exe	30
PID 3056 wrote to memory of 2520	3056	rundll32.exe	30
PID 3056 wrote to memory of 2520	3056	rundll32.exe	30
PID 3056 wrote to memory of 2520	3056	rundll32.exe	30
PID 3056 wrote to memory of 2520	3056	rundll32.exe	30
PID 3056 wrote to memory of 2520	3056	rundll32.exe	30
PID 3056 wrote to memory of 2520	3056	rundll32.exe	30
PID 2520 wrote to memory of 2420	2520	rundll32.exe	31
PID 2520 wrote to memory of 2420	2520	rundll32.exe	31
PID 2520 wrote to memory of 2420	2520	rundll32.exe	31
PID 2520 wrote to memory of 2420	2520	rundll32.exe	31
PID 2520 wrote to memory of 2116	2520	rundll32.exe	33
PID 2520 wrote to memory of 2116	2520	rundll32.exe	33
PID 2520 wrote to memory of 2116	2520	rundll32.exe	33
PID 2520 wrote to memory of 2116	2520	rundll32.exe	33
PID 2520 wrote to memory of 2220	2520	rundll32.exe	34
PID 2520 wrote to memory of 2220	2520	rundll32.exe	34
PID 2520 wrote to memory of 2220	2520	rundll32.exe	34
PID 2520 wrote to memory of 2220	2520	rundll32.exe	34
PID 2520 wrote to memory of 2372	2520	rundll32.exe	35
PID 2520 wrote to memory of 2372	2520	rundll32.exe	35
PID 2520 wrote to memory of 2372	2520	rundll32.exe	35
PID 2520 wrote to memory of 2372	2520	rundll32.exe	35
PID 2520 wrote to memory of 1824	2520	rundll32.exe	37
PID 2520 wrote to memory of 1824	2520	rundll32.exe	37
PID 2520 wrote to memory of 1824	2520	rundll32.exe	37
PID 2520 wrote to memory of 1824	2520	rundll32.exe	37
PID 2520 wrote to memory of 1656	2520	rundll32.exe	39
PID 2520 wrote to memory of 1656	2520	rundll32.exe	39
PID 2520 wrote to memory of 1656	2520	rundll32.exe	39
PID 2520 wrote to memory of 1656	2520	rundll32.exe	39
PID 2520 wrote to memory of 2364	2520	rundll32.exe	40
PID 2520 wrote to memory of 2364	2520	rundll32.exe	40
PID 2520 wrote to memory of 2364	2520	rundll32.exe	40
PID 2520 wrote to memory of 2364	2520	rundll32.exe	40
PID 2520 wrote to memory of 1660	2520	rundll32.exe	41
PID 2520 wrote to memory of 1660	2520	rundll32.exe	41
PID 2520 wrote to memory of 1660	2520	rundll32.exe	41
PID 2520 wrote to memory of 1660	2520	rundll32.exe	41
PID 2520 wrote to memory of 2724	2520	rundll32.exe	42
PID 2520 wrote to memory of 2724	2520	rundll32.exe	42
PID 2520 wrote to memory of 2724	2520	rundll32.exe	42
PID 2520 wrote to memory of 2724	2520	rundll32.exe	42
PID 2520 wrote to memory of 2912	2520	rundll32.exe	49
PID 2520 wrote to memory of 2912	2520	rundll32.exe	49
PID 2520 wrote to memory of 2912	2520	rundll32.exe	49
PID 2520 wrote to memory of 2912	2520	rundll32.exe	49

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\52020736bbc3849801a4c359e70d8db756437f9a708be11555d1c760c9ae51dc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3056
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\52020736bbc3849801a4c359e70d8db756437f9a708be11555d1c760c9ae51dc.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:2520
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2420
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 f7-68-d2-2b-b4-d1
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2116
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 66-12-17-bc-9e-85
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2220
- - C:\Windows\SysWOW64\arp.exe
    arp -s 49.12.169.208 72-80-90-a2-d6-50
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2372
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 f3-3c-c8-73-ec-8a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1824
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 e4-9e-4c-1b-bf-4b
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1656
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 5f-51-52-2a-95-8d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2364
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 4f-92-7a-13-d5-c4
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1660
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 5c-11-5a-7a-74-3d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2724
- - C:\Windows\SysWOW64\arp.exe
    arp -d
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2912

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

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Downloads

memory/2520-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2520-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2520-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2520-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2520-6-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2520-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2520-13-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2520-15-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download