ef789537f67e662d37877a77f804e0d1cdd9fdd062650b0d4f2397726a693f9e

Analysis

max time kernel
15s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/12/2024, 10:39

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General

Target

ef789537f67e662d37877a77f804e0d1cdd9fdd062650b0d4f2397726a693f9eN.dll
Size

80KB
MD5

7fabffb001494d6b28bc097bafed3550
SHA1

6402111c788bcf6e04fd40b693b05a42a038916f
SHA256

ef789537f67e662d37877a77f804e0d1cdd9fdd062650b0d4f2397726a693f9e
SHA512

9a759caad9c8dbe54c5c2af7ab08de0b1287cc6fee704613511669bddc1049f6b648f41710d23bb6dcbeebad417fcdae83cb133fbcd0d04d128ef611f7c972dd
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEBae:5dbwovEVyqgoZmZXWfIdQdRaefPAae

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
2760	arp.exe
2876	arp.exe
2872	arp.exe
2560	arp.exe
2776	arp.exe
2888	arp.exe
2884	arp.exe
2724	arp.exe
1936	arp.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2400-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2400-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2400-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2400-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2400-6-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2088	2400	WerFault.exe	30

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	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
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	2400	rundll32.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2400	2112	rundll32.exe	30
PID 2112 wrote to memory of 2400	2112	rundll32.exe	30
PID 2112 wrote to memory of 2400	2112	rundll32.exe	30
PID 2112 wrote to memory of 2400	2112	rundll32.exe	30
PID 2112 wrote to memory of 2400	2112	rundll32.exe	30
PID 2112 wrote to memory of 2400	2112	rundll32.exe	30
PID 2112 wrote to memory of 2400	2112	rundll32.exe	30
PID 2400 wrote to memory of 2560	2400	rundll32.exe	32
PID 2400 wrote to memory of 2560	2400	rundll32.exe	32
PID 2400 wrote to memory of 2560	2400	rundll32.exe	32
PID 2400 wrote to memory of 2560	2400	rundll32.exe	32
PID 2400 wrote to memory of 2088	2400	rundll32.exe	31
PID 2400 wrote to memory of 2088	2400	rundll32.exe	31
PID 2400 wrote to memory of 2088	2400	rundll32.exe	31
PID 2400 wrote to memory of 2088	2400	rundll32.exe	31
PID 2400 wrote to memory of 2760	2400	rundll32.exe	35
PID 2400 wrote to memory of 2760	2400	rundll32.exe	35
PID 2400 wrote to memory of 2760	2400	rundll32.exe	35
PID 2400 wrote to memory of 2760	2400	rundll32.exe	35
PID 2400 wrote to memory of 1936	2400	rundll32.exe	36
PID 2400 wrote to memory of 1936	2400	rundll32.exe	36
PID 2400 wrote to memory of 1936	2400	rundll32.exe	36
PID 2400 wrote to memory of 1936	2400	rundll32.exe	36
PID 2400 wrote to memory of 2724	2400	rundll32.exe	37
PID 2400 wrote to memory of 2724	2400	rundll32.exe	37
PID 2400 wrote to memory of 2724	2400	rundll32.exe	37
PID 2400 wrote to memory of 2724	2400	rundll32.exe	37
PID 2400 wrote to memory of 2884	2400	rundll32.exe	38
PID 2400 wrote to memory of 2884	2400	rundll32.exe	38
PID 2400 wrote to memory of 2884	2400	rundll32.exe	38
PID 2400 wrote to memory of 2884	2400	rundll32.exe	38
PID 2400 wrote to memory of 2872	2400	rundll32.exe	40
PID 2400 wrote to memory of 2872	2400	rundll32.exe	40
PID 2400 wrote to memory of 2872	2400	rundll32.exe	40
PID 2400 wrote to memory of 2872	2400	rundll32.exe	40
PID 2400 wrote to memory of 2888	2400	rundll32.exe	41
PID 2400 wrote to memory of 2888	2400	rundll32.exe	41
PID 2400 wrote to memory of 2888	2400	rundll32.exe	41
PID 2400 wrote to memory of 2888	2400	rundll32.exe	41
PID 2400 wrote to memory of 2876	2400	rundll32.exe	43
PID 2400 wrote to memory of 2876	2400	rundll32.exe	43
PID 2400 wrote to memory of 2876	2400	rundll32.exe	43
PID 2400 wrote to memory of 2876	2400	rundll32.exe	43
PID 2400 wrote to memory of 2776	2400	rundll32.exe	44
PID 2400 wrote to memory of 2776	2400	rundll32.exe	44
PID 2400 wrote to memory of 2776	2400	rundll32.exe	44
PID 2400 wrote to memory of 2776	2400	rundll32.exe	44

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ef789537f67e662d37877a77f804e0d1cdd9fdd062650b0d4f2397726a693f9eN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ef789537f67e662d37877a77f804e0d1cdd9fdd062650b0d4f2397726a693f9eN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2400
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 328
    3⤵
    - Program crash
    PID:2088
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2560
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 16-40-1f-b2-c0-a8
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2760
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 e0-9c-e3-68-f4-98
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1936
- - C:\Windows\SysWOW64\arp.exe
    arp -s 49.12.169.207 d5-da-f1-7f-6e-fa
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2724
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 e8-7f-99-ce-ea-70
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2884
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 eb-22-45-54-5d-90
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2872
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 cf-d5-78-62-bd-21
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2888
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 d6-e9-66-93-29-de
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2876
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 70-26-0d-ef-b9-62
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2776

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/2400-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2400-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2400-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2400-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2400-4-0x0000000076563000-0x0000000076564000-memory.dmp

Filesize
4KB

Download
memory/2400-6-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download