e7bcb00840c4559fbb1844073a5ba71a72e6494cea5453f86b02a1a1515dd2e1

Analysis

max time kernel
94s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2024 04:17

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General

Target

e7bcb00840c4559fbb1844073a5ba71a72e6494cea5453f86b02a1a1515dd2e1.dll
Size

80KB
MD5

f13535b31587cfacee97ae49a40a9382
SHA1

8fd8d8807031bca1bee177361adfcfcd4dee7e38
SHA256

e7bcb00840c4559fbb1844073a5ba71a72e6494cea5453f86b02a1a1515dd2e1
SHA512

4b269fd2bc4fad29317a7ced82e78b97d854ae48c61833b6c678914b357bdba67a767367260ee40e35b62932abbab2c568a38786fbd1dc70275c1cbc77522ba2
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEZZocyq:5dbwovEVyqgoZmZXWfIdQdRaefPlo

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
1128	arp.exe
3592	arp.exe
1992	arp.exe
3120	arp.exe
4292	arp.exe
1796	arp.exe
4936	arp.exe
2884	arp.exe
3380	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/448-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/448-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3124	448	WerFault.exe	83

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	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
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	448	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4584 wrote to memory of 448	4584	rundll32.exe	83
PID 4584 wrote to memory of 448	4584	rundll32.exe	83
PID 4584 wrote to memory of 448	4584	rundll32.exe	83
PID 448 wrote to memory of 1128	448	rundll32.exe	84
PID 448 wrote to memory of 1128	448	rundll32.exe	84
PID 448 wrote to memory of 1128	448	rundll32.exe	84
PID 448 wrote to memory of 3380	448	rundll32.exe	88
PID 448 wrote to memory of 3380	448	rundll32.exe	88
PID 448 wrote to memory of 3380	448	rundll32.exe	88
PID 448 wrote to memory of 2884	448	rundll32.exe	89
PID 448 wrote to memory of 2884	448	rundll32.exe	89
PID 448 wrote to memory of 2884	448	rundll32.exe	89
PID 448 wrote to memory of 1796	448	rundll32.exe	90
PID 448 wrote to memory of 1796	448	rundll32.exe	90
PID 448 wrote to memory of 1796	448	rundll32.exe	90
PID 448 wrote to memory of 4292	448	rundll32.exe	91
PID 448 wrote to memory of 4292	448	rundll32.exe	91
PID 448 wrote to memory of 4292	448	rundll32.exe	91
PID 448 wrote to memory of 4936	448	rundll32.exe	92
PID 448 wrote to memory of 4936	448	rundll32.exe	92
PID 448 wrote to memory of 4936	448	rundll32.exe	92
PID 448 wrote to memory of 3120	448	rundll32.exe	93
PID 448 wrote to memory of 3120	448	rundll32.exe	93
PID 448 wrote to memory of 3120	448	rundll32.exe	93
PID 448 wrote to memory of 1992	448	rundll32.exe	94
PID 448 wrote to memory of 1992	448	rundll32.exe	94
PID 448 wrote to memory of 1992	448	rundll32.exe	94
PID 448 wrote to memory of 3592	448	rundll32.exe	95
PID 448 wrote to memory of 3592	448	rundll32.exe	95
PID 448 wrote to memory of 3592	448	rundll32.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e7bcb00840c4559fbb1844073a5ba71a72e6494cea5453f86b02a1a1515dd2e1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4584
- 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:448
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1128
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 05-2d-72-65-cb-2e
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3380
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 40-5f-55-37-15-54
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2884
- - C:\Windows\SysWOW64\arp.exe
    arp -s 136.243.76.21 f1-ea-28-25-f7-11
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1796
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 6d-e1-47-9c-21-e4
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4292
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 04-9e-51-0b-6f-2f
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4936
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 4f-7e-bf-de-6e-db
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3120
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 76-48-3f-36-a2-1d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1992
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 f2-6d-78-cf-5d-fe
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3592
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 448 -s 728
    3⤵
    - Program crash
    PID:3124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 448 -ip 448
1⤵
PID:2692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

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/448-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/448-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download