75c77a6605110682bca7169b9af69e01781bda774f3ad11e785d0b8bee9aea76

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
1684	arp.exe
1028	arp.exe
2740	arp.exe
2296	arp.exe
2776	arp.exe
2840	arp.exe
1012	arp.exe
2836	arp.exe
2736	arp.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2560-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2560-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2560-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2560-5-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2420	2560	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	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 use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2560	rundll32.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 2576 wrote to memory of 2560	2576	rundll32.exe	30
PID 2576 wrote to memory of 2560	2576	rundll32.exe	30
PID 2576 wrote to memory of 2560	2576	rundll32.exe	30
PID 2576 wrote to memory of 2560	2576	rundll32.exe	30
PID 2576 wrote to memory of 2560	2576	rundll32.exe	30
PID 2576 wrote to memory of 2560	2576	rundll32.exe	30
PID 2576 wrote to memory of 2560	2576	rundll32.exe	30
PID 2560 wrote to memory of 1012	2560	rundll32.exe	31
PID 2560 wrote to memory of 1012	2560	rundll32.exe	31
PID 2560 wrote to memory of 1012	2560	rundll32.exe	31
PID 2560 wrote to memory of 1012	2560	rundll32.exe	31
PID 2560 wrote to memory of 2420	2560	rundll32.exe	32
PID 2560 wrote to memory of 2420	2560	rundll32.exe	32
PID 2560 wrote to memory of 2420	2560	rundll32.exe	32
PID 2560 wrote to memory of 2420	2560	rundll32.exe	32
PID 2560 wrote to memory of 1684	2560	rundll32.exe	34
PID 2560 wrote to memory of 1684	2560	rundll32.exe	34
PID 2560 wrote to memory of 1684	2560	rundll32.exe	34
PID 2560 wrote to memory of 1684	2560	rundll32.exe	34
PID 2560 wrote to memory of 1028	2560	rundll32.exe	35
PID 2560 wrote to memory of 1028	2560	rundll32.exe	35
PID 2560 wrote to memory of 1028	2560	rundll32.exe	35
PID 2560 wrote to memory of 1028	2560	rundll32.exe	35
PID 2560 wrote to memory of 2740	2560	rundll32.exe	36
PID 2560 wrote to memory of 2740	2560	rundll32.exe	36
PID 2560 wrote to memory of 2740	2560	rundll32.exe	36
PID 2560 wrote to memory of 2740	2560	rundll32.exe	36
PID 2560 wrote to memory of 2296	2560	rundll32.exe	37
PID 2560 wrote to memory of 2296	2560	rundll32.exe	37
PID 2560 wrote to memory of 2296	2560	rundll32.exe	37
PID 2560 wrote to memory of 2296	2560	rundll32.exe	37
PID 2560 wrote to memory of 2776	2560	rundll32.exe	38
PID 2560 wrote to memory of 2776	2560	rundll32.exe	38
PID 2560 wrote to memory of 2776	2560	rundll32.exe	38
PID 2560 wrote to memory of 2776	2560	rundll32.exe	38
PID 2560 wrote to memory of 2736	2560	rundll32.exe	39
PID 2560 wrote to memory of 2736	2560	rundll32.exe	39
PID 2560 wrote to memory of 2736	2560	rundll32.exe	39
PID 2560 wrote to memory of 2736	2560	rundll32.exe	39
PID 2560 wrote to memory of 2836	2560	rundll32.exe	40
PID 2560 wrote to memory of 2836	2560	rundll32.exe	40
PID 2560 wrote to memory of 2836	2560	rundll32.exe	40
PID 2560 wrote to memory of 2836	2560	rundll32.exe	40
PID 2560 wrote to memory of 2840	2560	rundll32.exe	41
PID 2560 wrote to memory of 2840	2560	rundll32.exe	41
PID 2560 wrote to memory of 2840	2560	rundll32.exe	41
PID 2560 wrote to memory of 2840	2560	rundll32.exe	41

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\75c77a6605110682bca7169b9af69e01781bda774f3ad11e785d0b8bee9aea76.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2576
- 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:2560
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1012
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 348
    3⤵
    - Program crash
    PID:2420
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 7f-e7-b9-87-6f-f8
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1684
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 51-5e-c0-0d-83-03
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1028
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.180 01-b4-70-44-80-42
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2740
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 a3-1a-c1-7f-da-7c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2296
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 7a-60-93-f6-fe-7e
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2776
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 4f-05-7c-fe-15-5c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2736
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 ae-4d-93-46-17-eb
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2836
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 3e-f8-b8-ec-f6-88
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2840

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/2560-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2560-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2560-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2560-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2560-5-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download