e7bcb00840c4559fbb1844073a5ba71a72e6494cea5453f86b02a1a1515dd2e1

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 04:12

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General

Target

e7bcb00840c4559fbb1844073a5ba71a72e6494cea5453f86b02a1a1515dd2e1.dll
Size

80KB
MD5

f13535b31587cfacee97ae49a40a9382
SHA1

8fd8d8807031bca1bee177361adfcfcd4dee7e38
SHA256

e7bcb00840c4559fbb1844073a5ba71a72e6494cea5453f86b02a1a1515dd2e1
SHA512

4b269fd2bc4fad29317a7ced82e78b97d854ae48c61833b6c678914b357bdba67a767367260ee40e35b62932abbab2c568a38786fbd1dc70275c1cbc77522ba2
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEZZocyq:5dbwovEVyqgoZmZXWfIdQdRaefPlo

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
2664	arp.exe
2816	arp.exe
2744	arp.exe
2564	arp.exe
2280	arp.exe
2840	arp.exe
2716	arp.exe
2940	arp.exe
2184	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3016-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/3016-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/3016-4-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
584	3016	WerFault.exe	31

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	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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3016	rundll32.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 3016	2196	rundll32.exe	31
PID 2196 wrote to memory of 3016	2196	rundll32.exe	31
PID 2196 wrote to memory of 3016	2196	rundll32.exe	31
PID 2196 wrote to memory of 3016	2196	rundll32.exe	31
PID 2196 wrote to memory of 3016	2196	rundll32.exe	31
PID 2196 wrote to memory of 3016	2196	rundll32.exe	31
PID 2196 wrote to memory of 3016	2196	rundll32.exe	31
PID 3016 wrote to memory of 2664	3016	rundll32.exe	33
PID 3016 wrote to memory of 2664	3016	rundll32.exe	33
PID 3016 wrote to memory of 2664	3016	rundll32.exe	33
PID 3016 wrote to memory of 2664	3016	rundll32.exe	33
PID 3016 wrote to memory of 584	3016	rundll32.exe	32
PID 3016 wrote to memory of 584	3016	rundll32.exe	32
PID 3016 wrote to memory of 584	3016	rundll32.exe	32
PID 3016 wrote to memory of 584	3016	rundll32.exe	32
PID 3016 wrote to memory of 2816	3016	rundll32.exe	35
PID 3016 wrote to memory of 2816	3016	rundll32.exe	35
PID 3016 wrote to memory of 2816	3016	rundll32.exe	35
PID 3016 wrote to memory of 2816	3016	rundll32.exe	35
PID 3016 wrote to memory of 2564	3016	rundll32.exe	36
PID 3016 wrote to memory of 2564	3016	rundll32.exe	36
PID 3016 wrote to memory of 2564	3016	rundll32.exe	36
PID 3016 wrote to memory of 2564	3016	rundll32.exe	36
PID 3016 wrote to memory of 2280	3016	rundll32.exe	37
PID 3016 wrote to memory of 2280	3016	rundll32.exe	37
PID 3016 wrote to memory of 2280	3016	rundll32.exe	37
PID 3016 wrote to memory of 2280	3016	rundll32.exe	37
PID 3016 wrote to memory of 2940	3016	rundll32.exe	38
PID 3016 wrote to memory of 2940	3016	rundll32.exe	38
PID 3016 wrote to memory of 2940	3016	rundll32.exe	38
PID 3016 wrote to memory of 2940	3016	rundll32.exe	38
PID 3016 wrote to memory of 2716	3016	rundll32.exe	39
PID 3016 wrote to memory of 2716	3016	rundll32.exe	39
PID 3016 wrote to memory of 2716	3016	rundll32.exe	39
PID 3016 wrote to memory of 2716	3016	rundll32.exe	39
PID 3016 wrote to memory of 2840	3016	rundll32.exe	40
PID 3016 wrote to memory of 2840	3016	rundll32.exe	40
PID 3016 wrote to memory of 2840	3016	rundll32.exe	40
PID 3016 wrote to memory of 2840	3016	rundll32.exe	40
PID 3016 wrote to memory of 2184	3016	rundll32.exe	41
PID 3016 wrote to memory of 2184	3016	rundll32.exe	41
PID 3016 wrote to memory of 2184	3016	rundll32.exe	41
PID 3016 wrote to memory of 2184	3016	rundll32.exe	41
PID 3016 wrote to memory of 2744	3016	rundll32.exe	42
PID 3016 wrote to memory of 2744	3016	rundll32.exe	42
PID 3016 wrote to memory of 2744	3016	rundll32.exe	42
PID 3016 wrote to memory of 2744	3016	rundll32.exe	42

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e7bcb00840c4559fbb1844073a5ba71a72e6494cea5453f86b02a1a1515dd2e1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e7bcb00840c4559fbb1844073a5ba71a72e6494cea5453f86b02a1a1515dd2e1.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3016
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3016 -s 276
    3⤵
    - Program crash
    PID:584
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2664
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 e1-40-62-2d-79-47
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2816
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 18-22-0a-da-8c-40
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2564
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.181 c7-a5-e2-e2-08-ea
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2280
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 e8-db-fe-aa-52-10
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2940
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 11-e7-18-77-5f-43
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2716
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 79-26-5f-04-59-c2
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2840
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 bc-6d-33-c1-b2-fc
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2184
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 39-18-f7-b6-03-c3
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2744

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/3016-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3016-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3016-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3016-4-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download