b7fd26e311a2711a60229adf7a74a299d67e176c21cad560527ad9c0b15b8366

Analysis

max time kernel
94s
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
22-12-2024 06:29

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General

Target

b7fd26e311a2711a60229adf7a74a299d67e176c21cad560527ad9c0b15b8366.dll
Size

80KB
MD5

bb9e17484a320628da9191be5e4820e9
SHA1

656c655729ead0ebd1064f1d6e4f92ceb6a41ed0
SHA256

b7fd26e311a2711a60229adf7a74a299d67e176c21cad560527ad9c0b15b8366
SHA512

dd38c6c62c1f73c61cbd575862e1a675157b0efee0b8354b54926e30bf0000288a3d2e57172b57b56f920e16cc622eec6cd002c88425a97a2eb1d8a26b33f959
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEN9fT:5dbwovEVyqgoZmZXWfIdQdRaefP4T

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
4576	arp.exe
4216	arp.exe
4796	arp.exe
3252	arp.exe
2856	arp.exe
4960	arp.exe
1624	arp.exe
3644	arp.exe
2108	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4180-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/4180-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2940	4180	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	4180	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 4180	4996	rundll32.exe	83
PID 4996 wrote to memory of 4180	4996	rundll32.exe	83
PID 4996 wrote to memory of 4180	4996	rundll32.exe	83
PID 4180 wrote to memory of 4796	4180	rundll32.exe	85
PID 4180 wrote to memory of 4796	4180	rundll32.exe	85
PID 4180 wrote to memory of 4796	4180	rundll32.exe	85
PID 4180 wrote to memory of 3644	4180	rundll32.exe	88
PID 4180 wrote to memory of 3644	4180	rundll32.exe	88
PID 4180 wrote to memory of 3644	4180	rundll32.exe	88
PID 4180 wrote to memory of 1624	4180	rundll32.exe	89
PID 4180 wrote to memory of 1624	4180	rundll32.exe	89
PID 4180 wrote to memory of 1624	4180	rundll32.exe	89
PID 4180 wrote to memory of 4960	4180	rundll32.exe	90
PID 4180 wrote to memory of 4960	4180	rundll32.exe	90
PID 4180 wrote to memory of 4960	4180	rundll32.exe	90
PID 4180 wrote to memory of 4216	4180	rundll32.exe	91
PID 4180 wrote to memory of 4216	4180	rundll32.exe	91
PID 4180 wrote to memory of 4216	4180	rundll32.exe	91
PID 4180 wrote to memory of 4576	4180	rundll32.exe	92
PID 4180 wrote to memory of 4576	4180	rundll32.exe	92
PID 4180 wrote to memory of 4576	4180	rundll32.exe	92
PID 4180 wrote to memory of 2856	4180	rundll32.exe	93
PID 4180 wrote to memory of 2856	4180	rundll32.exe	93
PID 4180 wrote to memory of 2856	4180	rundll32.exe	93
PID 4180 wrote to memory of 2108	4180	rundll32.exe	94
PID 4180 wrote to memory of 2108	4180	rundll32.exe	94
PID 4180 wrote to memory of 2108	4180	rundll32.exe	94
PID 4180 wrote to memory of 3252	4180	rundll32.exe	95
PID 4180 wrote to memory of 3252	4180	rundll32.exe	95
PID 4180 wrote to memory of 3252	4180	rundll32.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b7fd26e311a2711a60229adf7a74a299d67e176c21cad560527ad9c0b15b8366.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4996
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b7fd26e311a2711a60229adf7a74a299d67e176c21cad560527ad9c0b15b8366.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4180
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4796
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 64-14-d5-11-c7-b3
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3644
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 48-cf-d8-2f-a0-38
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1624
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.184 47-fd-6e-fb-2f-30
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4960
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 1a-31-3f-bc-f7-75
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4216
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 0f-b9-b7-3d-2d-95
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4576
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 e1-32-05-a3-eb-eb
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2856
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 2e-87-eb-52-bd-9e
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2108
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 69-20-89-d4-d1-b7
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3252
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4180 -s 668
    3⤵
    - Program crash
    PID:2940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4180 -ip 4180
1⤵
PID:5056

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/4180-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/4180-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download