3935e4657eecc40a26c28297fb43da88465aa01f454f3a7b3df2b76c91f4bd5f

Analysis

max time kernel
16s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 00:52

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General

Target

3935e4657eecc40a26c28297fb43da88465aa01f454f3a7b3df2b76c91f4bd5f.dll
Size

80KB
MD5

024e5110e5808aa57bc1e3ad0c33f3d1
SHA1

9a53cd292e9f80af799eb3f5ecc1a052316bb5fe
SHA256

3935e4657eecc40a26c28297fb43da88465aa01f454f3a7b3df2b76c91f4bd5f
SHA512

ee77d53e156d482e8e692ae6e84c755253eae2803e5be8202fc9bc1cea4f960e6285662a19bd26600021e32e4904065c526148571a56b9da75cd6668096859a2
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEF4n7r:5dbwovEVyqgoZmZXWfIdQdRaefPX

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
2740	arp.exe
1044	arp.exe
2808	arp.exe
2816	arp.exe
1416	arp.exe
2172	arp.exe
2804	arp.exe
2968	arp.exe
2768	arp.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2900-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2900-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2900-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2900-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2900-5-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2288	2900	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	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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2900	rundll32.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 2896 wrote to memory of 2900	2896	rundll32.exe	30
PID 2896 wrote to memory of 2900	2896	rundll32.exe	30
PID 2896 wrote to memory of 2900	2896	rundll32.exe	30
PID 2896 wrote to memory of 2900	2896	rundll32.exe	30
PID 2896 wrote to memory of 2900	2896	rundll32.exe	30
PID 2896 wrote to memory of 2900	2896	rundll32.exe	30
PID 2896 wrote to memory of 2900	2896	rundll32.exe	30
PID 2900 wrote to memory of 2288	2900	rundll32.exe	31
PID 2900 wrote to memory of 2288	2900	rundll32.exe	31
PID 2900 wrote to memory of 2288	2900	rundll32.exe	31
PID 2900 wrote to memory of 2288	2900	rundll32.exe	31
PID 2900 wrote to memory of 1416	2900	rundll32.exe	32
PID 2900 wrote to memory of 1416	2900	rundll32.exe	32
PID 2900 wrote to memory of 1416	2900	rundll32.exe	32
PID 2900 wrote to memory of 1416	2900	rundll32.exe	32
PID 2900 wrote to memory of 2740	2900	rundll32.exe	34
PID 2900 wrote to memory of 2740	2900	rundll32.exe	34
PID 2900 wrote to memory of 2740	2900	rundll32.exe	34
PID 2900 wrote to memory of 2740	2900	rundll32.exe	34
PID 2900 wrote to memory of 2172	2900	rundll32.exe	35
PID 2900 wrote to memory of 2172	2900	rundll32.exe	35
PID 2900 wrote to memory of 2172	2900	rundll32.exe	35
PID 2900 wrote to memory of 2172	2900	rundll32.exe	35
PID 2900 wrote to memory of 2804	2900	rundll32.exe	36
PID 2900 wrote to memory of 2804	2900	rundll32.exe	36
PID 2900 wrote to memory of 2804	2900	rundll32.exe	36
PID 2900 wrote to memory of 2804	2900	rundll32.exe	36
PID 2900 wrote to memory of 2968	2900	rundll32.exe	37
PID 2900 wrote to memory of 2968	2900	rundll32.exe	37
PID 2900 wrote to memory of 2968	2900	rundll32.exe	37
PID 2900 wrote to memory of 2968	2900	rundll32.exe	37
PID 2900 wrote to memory of 2808	2900	rundll32.exe	38
PID 2900 wrote to memory of 2808	2900	rundll32.exe	38
PID 2900 wrote to memory of 2808	2900	rundll32.exe	38
PID 2900 wrote to memory of 2808	2900	rundll32.exe	38
PID 2900 wrote to memory of 2768	2900	rundll32.exe	39
PID 2900 wrote to memory of 2768	2900	rundll32.exe	39
PID 2900 wrote to memory of 2768	2900	rundll32.exe	39
PID 2900 wrote to memory of 2768	2900	rundll32.exe	39
PID 2900 wrote to memory of 1044	2900	rundll32.exe	40
PID 2900 wrote to memory of 1044	2900	rundll32.exe	40
PID 2900 wrote to memory of 1044	2900	rundll32.exe	40
PID 2900 wrote to memory of 1044	2900	rundll32.exe	40
PID 2900 wrote to memory of 2816	2900	rundll32.exe	41
PID 2900 wrote to memory of 2816	2900	rundll32.exe	41
PID 2900 wrote to memory of 2816	2900	rundll32.exe	41
PID 2900 wrote to memory of 2816	2900	rundll32.exe	41

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3935e4657eecc40a26c28297fb43da88465aa01f454f3a7b3df2b76c91f4bd5f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3935e4657eecc40a26c28297fb43da88465aa01f454f3a7b3df2b76c91f4bd5f.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2900
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2900 -s 332
    3⤵
    - Program crash
    PID:2288
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1416
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 cb-c8-48-bc-86-e6
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2740
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 5c-04-62-af-fa-6c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2172
- - C:\Windows\SysWOW64\arp.exe
    arp -s 136.243.76.21 6e-54-60-ce-8c-4a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2804
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 34-c3-6e-c3-e4-71
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2968
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 e2-e2-d1-de-e0-43
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2808
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 46-6a-84-0d-71-76
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2768
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 3a-e8-83-98-2d-bb
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1044
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 ce-df-e7-45-1d-f6
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2816

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

Replay Monitor

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Downloads

memory/2900-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2900-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2900-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2900-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2900-5-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download