75c77a6605110682bca7169b9af69e01781bda774f3ad11e785d0b8bee9aea76

Analysis

max time kernel
92s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 22:45

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General

Target

75c77a6605110682bca7169b9af69e01781bda774f3ad11e785d0b8bee9aea76.dll
Size

80KB
MD5

231338e073ad7739914ed682a4cd5978
SHA1

022a52cbd32c7763ab0e7158a2401d9a10562d19
SHA256

75c77a6605110682bca7169b9af69e01781bda774f3ad11e785d0b8bee9aea76
SHA512

e1cb226a4a7253c2fef5ed3c9bd4d28951a4e79a492f2832dffeb80aceb2bcc89e34e0a911970c559a6aec7e3b972aa76ac6beab10eac81f7ee00b450907a8b3
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEPejP:5dbwovEVyqgoZmZXWfIdQdRaefPr

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
4576	arp.exe
2088	arp.exe
1648	arp.exe
2648	arp.exe
3120	arp.exe
3536	arp.exe
3588	arp.exe
2732	arp.exe
3500	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1348-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/1348-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1144	1348	WerFault.exe	82

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	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: LoadsDriver 1 IoCs

pid	Process
664	Process not Found

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1348	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1608 wrote to memory of 1348	1608	rundll32.exe	82
PID 1608 wrote to memory of 1348	1608	rundll32.exe	82
PID 1608 wrote to memory of 1348	1608	rundll32.exe	82
PID 1348 wrote to memory of 3588	1348	rundll32.exe	84
PID 1348 wrote to memory of 3588	1348	rundll32.exe	84
PID 1348 wrote to memory of 3588	1348	rundll32.exe	84
PID 1348 wrote to memory of 2732	1348	rundll32.exe	87
PID 1348 wrote to memory of 2732	1348	rundll32.exe	87
PID 1348 wrote to memory of 2732	1348	rundll32.exe	87
PID 1348 wrote to memory of 4576	1348	rundll32.exe	88
PID 1348 wrote to memory of 4576	1348	rundll32.exe	88
PID 1348 wrote to memory of 4576	1348	rundll32.exe	88
PID 1348 wrote to memory of 3536	1348	rundll32.exe	89
PID 1348 wrote to memory of 3536	1348	rundll32.exe	89
PID 1348 wrote to memory of 3536	1348	rundll32.exe	89
PID 1348 wrote to memory of 3500	1348	rundll32.exe	90
PID 1348 wrote to memory of 3500	1348	rundll32.exe	90
PID 1348 wrote to memory of 3500	1348	rundll32.exe	90
PID 1348 wrote to memory of 3120	1348	rundll32.exe	91
PID 1348 wrote to memory of 3120	1348	rundll32.exe	91
PID 1348 wrote to memory of 3120	1348	rundll32.exe	91
PID 1348 wrote to memory of 2648	1348	rundll32.exe	92
PID 1348 wrote to memory of 2648	1348	rundll32.exe	92
PID 1348 wrote to memory of 2648	1348	rundll32.exe	92
PID 1348 wrote to memory of 1648	1348	rundll32.exe	93
PID 1348 wrote to memory of 1648	1348	rundll32.exe	93
PID 1348 wrote to memory of 1648	1348	rundll32.exe	93
PID 1348 wrote to memory of 2088	1348	rundll32.exe	94
PID 1348 wrote to memory of 2088	1348	rundll32.exe	94
PID 1348 wrote to memory of 2088	1348	rundll32.exe	94

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\75c77a6605110682bca7169b9af69e01781bda774f3ad11e785d0b8bee9aea76.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1608
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\75c77a6605110682bca7169b9af69e01781bda774f3ad11e785d0b8bee9aea76.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1348
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3588
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 49-98-2e-83-58-e6
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2732
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 b8-3a-dd-f9-01-d7
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4576
- - C:\Windows\SysWOW64\arp.exe
    arp -s 136.243.69.123 c2-93-3a-e7-f1-6e
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3536
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 d9-1b-03-dc-d0-f3
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3500
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 17-85-c0-c0-2d-7c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3120
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 76-27-c6-51-2c-30
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2648
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 39-05-60-96-86-22
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1648
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 0a-f0-f0-fc-04-a2
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2088
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1348 -s 696
    3⤵
    - Program crash
    PID:1144

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1348 -ip 1348
1⤵
PID:1288

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/1348-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1348-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download