bb2fea1c7430953077dddf0d67273b029fe37038f2ad81ab7c129fdd13fd302d

Analysis

max time kernel
93s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-12-2024 03:34

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General

Target

bb2fea1c7430953077dddf0d67273b029fe37038f2ad81ab7c129fdd13fd302dN.dll
Size

80KB
MD5

daf8181b5d3a5422874d8807e3fac980
SHA1

acbe13dd414d717e888e4ecd131178cefc3f815e
SHA256

bb2fea1c7430953077dddf0d67273b029fe37038f2ad81ab7c129fdd13fd302d
SHA512

217d9a4ba0b1fe685c35cd0709d8330182b1640f7bd04eae74ae5e63df201dbccd8f2f47172c547af12fb46558d01b7a07e109dde362caa46425aebb6bada845
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEvMz:5dbwovEVyqgoZmZXWfIdQdRaefPFz

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
2704	arp.exe
3140	arp.exe
2256	arp.exe
3864	arp.exe
1916	arp.exe
2728	arp.exe
1320	arp.exe
1508	arp.exe
2828	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4924-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/4924-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1840	4924	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	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	4924	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3556 wrote to memory of 4924	3556	rundll32.exe	83
PID 3556 wrote to memory of 4924	3556	rundll32.exe	83
PID 3556 wrote to memory of 4924	3556	rundll32.exe	83
PID 4924 wrote to memory of 1320	4924	rundll32.exe	85
PID 4924 wrote to memory of 1320	4924	rundll32.exe	85
PID 4924 wrote to memory of 1320	4924	rundll32.exe	85
PID 4924 wrote to memory of 2728	4924	rundll32.exe	88
PID 4924 wrote to memory of 2728	4924	rundll32.exe	88
PID 4924 wrote to memory of 2728	4924	rundll32.exe	88
PID 4924 wrote to memory of 3140	4924	rundll32.exe	89
PID 4924 wrote to memory of 3140	4924	rundll32.exe	89
PID 4924 wrote to memory of 3140	4924	rundll32.exe	89
PID 4924 wrote to memory of 2704	4924	rundll32.exe	90
PID 4924 wrote to memory of 2704	4924	rundll32.exe	90
PID 4924 wrote to memory of 2704	4924	rundll32.exe	90
PID 4924 wrote to memory of 2828	4924	rundll32.exe	91
PID 4924 wrote to memory of 2828	4924	rundll32.exe	91
PID 4924 wrote to memory of 2828	4924	rundll32.exe	91
PID 4924 wrote to memory of 1916	4924	rundll32.exe	92
PID 4924 wrote to memory of 1916	4924	rundll32.exe	92
PID 4924 wrote to memory of 1916	4924	rundll32.exe	92
PID 4924 wrote to memory of 3864	4924	rundll32.exe	93
PID 4924 wrote to memory of 3864	4924	rundll32.exe	93
PID 4924 wrote to memory of 3864	4924	rundll32.exe	93
PID 4924 wrote to memory of 1508	4924	rundll32.exe	94
PID 4924 wrote to memory of 1508	4924	rundll32.exe	94
PID 4924 wrote to memory of 1508	4924	rundll32.exe	94
PID 4924 wrote to memory of 2256	4924	rundll32.exe	95
PID 4924 wrote to memory of 2256	4924	rundll32.exe	95
PID 4924 wrote to memory of 2256	4924	rundll32.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bb2fea1c7430953077dddf0d67273b029fe37038f2ad81ab7c129fdd13fd302dN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3556
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bb2fea1c7430953077dddf0d67273b029fe37038f2ad81ab7c129fdd13fd302dN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4924
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1320
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 20-03-9a-08-4c-b8
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2728
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 f4-e8-d8-de-88-ad
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3140
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.181 18-4f-0b-ad-3c-8d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2704
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 b6-71-ee-2b-13-ec
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2828
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 10-6b-9d-09-e8-ec
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1916
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 fe-44-c3-0c-41-e6
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3864
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 4d-f9-6a-4d-63-8b
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1508
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 70-bc-0b-01-e4-3a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2256
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4924 -s 704
    3⤵
    - Program crash
    PID:1840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4924 -ip 4924
1⤵
PID:1596

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/4924-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

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memory/4924-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download