85c4f8e1d6f46ad59bdf53a6e74eff1140ac0ca8bfa269d9078f956c51b81766

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
17-12-2024 05:20

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General

Target

85c4f8e1d6f46ad59bdf53a6e74eff1140ac0ca8bfa269d9078f956c51b81766.dll
Size

80KB
MD5

b3a7d85b86383396a23f306917fd6f5f
SHA1

fea0a693cfe01bb7b42d363c91a66f9962f0b598
SHA256

85c4f8e1d6f46ad59bdf53a6e74eff1140ac0ca8bfa269d9078f956c51b81766
SHA512

10f484eb96d75baeac0415bb4da208f820bc22b7681d24e71e6fa4b47fd50cd687877c2a2a6c23eb8d9a2324791652c4b0b344f8cb46b0190e5ef9bd8b0a391d
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEcGL0FLqUI7Hb:5dbwovEVyqgoZmZXWfIdQdRaefPDEZHb

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
2392	arp.exe
2328	arp.exe
3004	arp.exe
2728	arp.exe
2848	arp.exe
2692	arp.exe
2000	arp.exe
2924	arp.exe
2864	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2504-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2504-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2504-4-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
880	2504	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	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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2504	rundll32.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2504	2112	rundll32.exe	30
PID 2112 wrote to memory of 2504	2112	rundll32.exe	30
PID 2112 wrote to memory of 2504	2112	rundll32.exe	30
PID 2112 wrote to memory of 2504	2112	rundll32.exe	30
PID 2112 wrote to memory of 2504	2112	rundll32.exe	30
PID 2112 wrote to memory of 2504	2112	rundll32.exe	30
PID 2112 wrote to memory of 2504	2112	rundll32.exe	30
PID 2504 wrote to memory of 2392	2504	rundll32.exe	32
PID 2504 wrote to memory of 2392	2504	rundll32.exe	32
PID 2504 wrote to memory of 2392	2504	rundll32.exe	32
PID 2504 wrote to memory of 2392	2504	rundll32.exe	32
PID 2504 wrote to memory of 880	2504	rundll32.exe	31
PID 2504 wrote to memory of 880	2504	rundll32.exe	31
PID 2504 wrote to memory of 880	2504	rundll32.exe	31
PID 2504 wrote to memory of 880	2504	rundll32.exe	31
PID 2504 wrote to memory of 2000	2504	rundll32.exe	34
PID 2504 wrote to memory of 2000	2504	rundll32.exe	34
PID 2504 wrote to memory of 2000	2504	rundll32.exe	34
PID 2504 wrote to memory of 2000	2504	rundll32.exe	34
PID 2504 wrote to memory of 2328	2504	rundll32.exe	35
PID 2504 wrote to memory of 2328	2504	rundll32.exe	35
PID 2504 wrote to memory of 2328	2504	rundll32.exe	35
PID 2504 wrote to memory of 2328	2504	rundll32.exe	35
PID 2504 wrote to memory of 3004	2504	rundll32.exe	36
PID 2504 wrote to memory of 3004	2504	rundll32.exe	36
PID 2504 wrote to memory of 3004	2504	rundll32.exe	36
PID 2504 wrote to memory of 3004	2504	rundll32.exe	36
PID 2504 wrote to memory of 2924	2504	rundll32.exe	37
PID 2504 wrote to memory of 2924	2504	rundll32.exe	37
PID 2504 wrote to memory of 2924	2504	rundll32.exe	37
PID 2504 wrote to memory of 2924	2504	rundll32.exe	37
PID 2504 wrote to memory of 2692	2504	rundll32.exe	38
PID 2504 wrote to memory of 2692	2504	rundll32.exe	38
PID 2504 wrote to memory of 2692	2504	rundll32.exe	38
PID 2504 wrote to memory of 2692	2504	rundll32.exe	38
PID 2504 wrote to memory of 2728	2504	rundll32.exe	39
PID 2504 wrote to memory of 2728	2504	rundll32.exe	39
PID 2504 wrote to memory of 2728	2504	rundll32.exe	39
PID 2504 wrote to memory of 2728	2504	rundll32.exe	39
PID 2504 wrote to memory of 2848	2504	rundll32.exe	40
PID 2504 wrote to memory of 2848	2504	rundll32.exe	40
PID 2504 wrote to memory of 2848	2504	rundll32.exe	40
PID 2504 wrote to memory of 2848	2504	rundll32.exe	40
PID 2504 wrote to memory of 2864	2504	rundll32.exe	41
PID 2504 wrote to memory of 2864	2504	rundll32.exe	41
PID 2504 wrote to memory of 2864	2504	rundll32.exe	41
PID 2504 wrote to memory of 2864	2504	rundll32.exe	41

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\85c4f8e1d6f46ad59bdf53a6e74eff1140ac0ca8bfa269d9078f956c51b81766.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\85c4f8e1d6f46ad59bdf53a6e74eff1140ac0ca8bfa269d9078f956c51b81766.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2504
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2504 -s 276
    3⤵
    - Program crash
    PID:880
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2392
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 bc-38-68-35-1b-e6
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2000
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 3b-7f-a7-1c-a1-c4
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2328
- - C:\Windows\SysWOW64\arp.exe
    arp -s 136.243.76.21 c8-32-64-87-16-2e
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3004
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 4f-43-54-fe-f0-6f
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2924
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 46-8e-bc-c9-bd-94
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2692
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 b7-04-88-bf-b8-06
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2728
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 6f-c7-19-d3-c1-17
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2848
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 8f-1f-1e-a6-5b-ce
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2864

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/2504-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2504-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2504-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2504-4-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download