a9019c95b3a7927c436cb3fc7701e0c507eb44d3437bc6ab5ef8cdaec97e31c7

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 14:45

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General

Target

a9019c95b3a7927c436cb3fc7701e0c507eb44d3437bc6ab5ef8cdaec97e31c7.dll
Size

80KB
MD5

700b538dce9ae1f566ac5a8d51a31c43
SHA1

a1bf86938457efcad0bdcf19490bfdf5078b7146
SHA256

a9019c95b3a7927c436cb3fc7701e0c507eb44d3437bc6ab5ef8cdaec97e31c7
SHA512

2f759f61d8672b438417754647a6ab127e9f236a0e92a2ee2074b1211fe76ff074cb584fc3480a5909eed491f4e05975d3a2f72e1107df5df94f6e6d529e3913
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEe5LTs:5dbwovEVyqgoZmZXWfIdQdRaefPD5c

Score

8^/10

discovery upx

Malware Config

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
5	2916	rundll32.exe
8	2916	rundll32.exe
9	2916	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
2880	arp.exe
2556	arp.exe
2840	arp.exe
2700	arp.exe
2584	arp.exe
2908	arp.exe
2844	arp.exe
2552	arp.exe
2664	arp.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2916-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2916-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2916-6-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2916-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2916-8-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2916-15-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2916-16-0x0000000010000000-0x0000000010033000-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	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 behavior: EnumeratesProcesses 3 IoCs

pid	Process
2916	rundll32.exe
2916	rundll32.exe
2916	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	2916	rundll32.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 2916	2820	rundll32.exe	30
PID 2820 wrote to memory of 2916	2820	rundll32.exe	30
PID 2820 wrote to memory of 2916	2820	rundll32.exe	30
PID 2820 wrote to memory of 2916	2820	rundll32.exe	30
PID 2820 wrote to memory of 2916	2820	rundll32.exe	30
PID 2820 wrote to memory of 2916	2820	rundll32.exe	30
PID 2820 wrote to memory of 2916	2820	rundll32.exe	30
PID 2916 wrote to memory of 2908	2916	rundll32.exe	31
PID 2916 wrote to memory of 2908	2916	rundll32.exe	31
PID 2916 wrote to memory of 2908	2916	rundll32.exe	31
PID 2916 wrote to memory of 2908	2916	rundll32.exe	31
PID 2916 wrote to memory of 2844	2916	rundll32.exe	33
PID 2916 wrote to memory of 2844	2916	rundll32.exe	33
PID 2916 wrote to memory of 2844	2916	rundll32.exe	33
PID 2916 wrote to memory of 2844	2916	rundll32.exe	33
PID 2916 wrote to memory of 2880	2916	rundll32.exe	34
PID 2916 wrote to memory of 2880	2916	rundll32.exe	34
PID 2916 wrote to memory of 2880	2916	rundll32.exe	34
PID 2916 wrote to memory of 2880	2916	rundll32.exe	34
PID 2916 wrote to memory of 2556	2916	rundll32.exe	35
PID 2916 wrote to memory of 2556	2916	rundll32.exe	35
PID 2916 wrote to memory of 2556	2916	rundll32.exe	35
PID 2916 wrote to memory of 2556	2916	rundll32.exe	35
PID 2916 wrote to memory of 2552	2916	rundll32.exe	36
PID 2916 wrote to memory of 2552	2916	rundll32.exe	36
PID 2916 wrote to memory of 2552	2916	rundll32.exe	36
PID 2916 wrote to memory of 2552	2916	rundll32.exe	36
PID 2916 wrote to memory of 2840	2916	rundll32.exe	37
PID 2916 wrote to memory of 2840	2916	rundll32.exe	37
PID 2916 wrote to memory of 2840	2916	rundll32.exe	37
PID 2916 wrote to memory of 2840	2916	rundll32.exe	37
PID 2916 wrote to memory of 2664	2916	rundll32.exe	38
PID 2916 wrote to memory of 2664	2916	rundll32.exe	38
PID 2916 wrote to memory of 2664	2916	rundll32.exe	38
PID 2916 wrote to memory of 2664	2916	rundll32.exe	38
PID 2916 wrote to memory of 2584	2916	rundll32.exe	41
PID 2916 wrote to memory of 2584	2916	rundll32.exe	41
PID 2916 wrote to memory of 2584	2916	rundll32.exe	41
PID 2916 wrote to memory of 2584	2916	rundll32.exe	41
PID 2916 wrote to memory of 2700	2916	rundll32.exe	42
PID 2916 wrote to memory of 2700	2916	rundll32.exe	42
PID 2916 wrote to memory of 2700	2916	rundll32.exe	42
PID 2916 wrote to memory of 2700	2916	rundll32.exe	42
PID 2916 wrote to memory of 2492	2916	rundll32.exe	49
PID 2916 wrote to memory of 2492	2916	rundll32.exe	49
PID 2916 wrote to memory of 2492	2916	rundll32.exe	49
PID 2916 wrote to memory of 2492	2916	rundll32.exe	49

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9019c95b3a7927c436cb3fc7701e0c507eb44d3437bc6ab5ef8cdaec97e31c7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9019c95b3a7927c436cb3fc7701e0c507eb44d3437bc6ab5ef8cdaec97e31c7.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:2916
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2908
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 a3-9c-53-d4-33-b6
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2844
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 ff-72-c5-fc-89-58
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2880
- - C:\Windows\SysWOW64\arp.exe
    arp -s 136.243.69.123 62-24-86-0e-8e-88
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2556
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 7a-a3-e5-4b-ba-d1
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2552
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 7d-20-9c-6b-0e-af
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2840
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 1f-ea-0e-af-de-19
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2664
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 6d-4c-cf-e7-ae-13
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2584
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 8e-77-d5-86-a4-b0
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2700
- - C:\Windows\SysWOW64\arp.exe
    arp -d
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2492

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/2916-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2916-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2916-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2916-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2916-6-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2916-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2916-8-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2916-15-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2916-16-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download