b7fd26e311a2711a60229adf7a74a299d67e176c21cad560527ad9c0b15b8366

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 06:29

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General

Target

b7fd26e311a2711a60229adf7a74a299d67e176c21cad560527ad9c0b15b8366.dll
Size

80KB
MD5

bb9e17484a320628da9191be5e4820e9
SHA1

656c655729ead0ebd1064f1d6e4f92ceb6a41ed0
SHA256

b7fd26e311a2711a60229adf7a74a299d67e176c21cad560527ad9c0b15b8366
SHA512

dd38c6c62c1f73c61cbd575862e1a675157b0efee0b8354b54926e30bf0000288a3d2e57172b57b56f920e16cc622eec6cd002c88425a97a2eb1d8a26b33f959
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEN9fT:5dbwovEVyqgoZmZXWfIdQdRaefP4T

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
2304	arp.exe
2632	arp.exe
2832	arp.exe
1672	arp.exe
1740	arp.exe
2412	arp.exe
2764	arp.exe
2096	arp.exe
2644	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1540-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1540-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2460	1540	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	rundll32.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	1540	rundll32.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 1540	1716	rundll32.exe	30
PID 1716 wrote to memory of 1540	1716	rundll32.exe	30
PID 1716 wrote to memory of 1540	1716	rundll32.exe	30
PID 1716 wrote to memory of 1540	1716	rundll32.exe	30
PID 1716 wrote to memory of 1540	1716	rundll32.exe	30
PID 1716 wrote to memory of 1540	1716	rundll32.exe	30
PID 1716 wrote to memory of 1540	1716	rundll32.exe	30
PID 1540 wrote to memory of 2460	1540	rundll32.exe	31
PID 1540 wrote to memory of 2460	1540	rundll32.exe	31
PID 1540 wrote to memory of 2460	1540	rundll32.exe	31
PID 1540 wrote to memory of 2460	1540	rundll32.exe	31
PID 1540 wrote to memory of 2304	1540	rundll32.exe	32
PID 1540 wrote to memory of 2304	1540	rundll32.exe	32
PID 1540 wrote to memory of 2304	1540	rundll32.exe	32
PID 1540 wrote to memory of 2304	1540	rundll32.exe	32
PID 1540 wrote to memory of 2632	1540	rundll32.exe	34
PID 1540 wrote to memory of 2632	1540	rundll32.exe	34
PID 1540 wrote to memory of 2632	1540	rundll32.exe	34
PID 1540 wrote to memory of 2632	1540	rundll32.exe	34
PID 1540 wrote to memory of 2096	1540	rundll32.exe	35
PID 1540 wrote to memory of 2096	1540	rundll32.exe	35
PID 1540 wrote to memory of 2096	1540	rundll32.exe	35
PID 1540 wrote to memory of 2096	1540	rundll32.exe	35
PID 1540 wrote to memory of 2832	1540	rundll32.exe	36
PID 1540 wrote to memory of 2832	1540	rundll32.exe	36
PID 1540 wrote to memory of 2832	1540	rundll32.exe	36
PID 1540 wrote to memory of 2832	1540	rundll32.exe	36
PID 1540 wrote to memory of 1672	1540	rundll32.exe	37
PID 1540 wrote to memory of 1672	1540	rundll32.exe	37
PID 1540 wrote to memory of 1672	1540	rundll32.exe	37
PID 1540 wrote to memory of 1672	1540	rundll32.exe	37
PID 1540 wrote to memory of 2764	1540	rundll32.exe	38
PID 1540 wrote to memory of 2764	1540	rundll32.exe	38
PID 1540 wrote to memory of 2764	1540	rundll32.exe	38
PID 1540 wrote to memory of 2764	1540	rundll32.exe	38
PID 1540 wrote to memory of 2644	1540	rundll32.exe	40
PID 1540 wrote to memory of 2644	1540	rundll32.exe	40
PID 1540 wrote to memory of 2644	1540	rundll32.exe	40
PID 1540 wrote to memory of 2644	1540	rundll32.exe	40
PID 1540 wrote to memory of 1740	1540	rundll32.exe	41
PID 1540 wrote to memory of 1740	1540	rundll32.exe	41
PID 1540 wrote to memory of 1740	1540	rundll32.exe	41
PID 1540 wrote to memory of 1740	1540	rundll32.exe	41
PID 1540 wrote to memory of 2412	1540	rundll32.exe	42
PID 1540 wrote to memory of 2412	1540	rundll32.exe	42
PID 1540 wrote to memory of 2412	1540	rundll32.exe	42
PID 1540 wrote to memory of 2412	1540	rundll32.exe	42

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b7fd26e311a2711a60229adf7a74a299d67e176c21cad560527ad9c0b15b8366.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1716
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b7fd26e311a2711a60229adf7a74a299d67e176c21cad560527ad9c0b15b8366.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1540
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1540 -s 308
    3⤵
    - Program crash
    PID:2460
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2304
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 3c-bd-8a-11-ff-b7
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2632
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 cd-a3-6c-33-21-a7
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2096
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.185 20-04-ac-41-7f-8e
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2832
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 0f-ca-98-43-60-91
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1672
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 56-18-ae-e1-f0-62
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2764
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 d9-5f-c3-2c-80-5a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2644
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 12-62-28-0f-da-2c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1740
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 a6-88-17-04-34-18
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2412

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/1540-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1540-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download