67b71a440987b18b40c6e43a519633bb43756eaf46ff105a1591515ee8a0dda6

Analysis

max time kernel
16s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 06:38

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General

Target

67b71a440987b18b40c6e43a519633bb43756eaf46ff105a1591515ee8a0dda6N.dll
Size

80KB
MD5

8927897f68bc90ebc2a340b0b020b070
SHA1

13fb4d1fd8e7a3fa121c2d81364ad33a001119c7
SHA256

67b71a440987b18b40c6e43a519633bb43756eaf46ff105a1591515ee8a0dda6
SHA512

254564e22eb764b429f680fae2b5447de53cb9daee8b955df1bc200f655deb545f35d76e9b5b8058ee4356d7c91190fc3fd36b80aa7aa098bd3d5f603b98d404
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEN9fD:5dbwovEVyqgoZmZXWfIdQdRaefP4D

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
2248	arp.exe
2812	arp.exe
1152	arp.exe
2760	arp.exe
2868	arp.exe
2832	arp.exe
2828	arp.exe
2720	arp.exe
2560	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2056-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2056-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1160	2056	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	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	2056	rundll32.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 2056	2584	rundll32.exe	30
PID 2584 wrote to memory of 2056	2584	rundll32.exe	30
PID 2584 wrote to memory of 2056	2584	rundll32.exe	30
PID 2584 wrote to memory of 2056	2584	rundll32.exe	30
PID 2584 wrote to memory of 2056	2584	rundll32.exe	30
PID 2584 wrote to memory of 2056	2584	rundll32.exe	30
PID 2584 wrote to memory of 2056	2584	rundll32.exe	30
PID 2056 wrote to memory of 1160	2056	rundll32.exe	31
PID 2056 wrote to memory of 1160	2056	rundll32.exe	31
PID 2056 wrote to memory of 1160	2056	rundll32.exe	31
PID 2056 wrote to memory of 1160	2056	rundll32.exe	31
PID 2056 wrote to memory of 2248	2056	rundll32.exe	32
PID 2056 wrote to memory of 2248	2056	rundll32.exe	32
PID 2056 wrote to memory of 2248	2056	rundll32.exe	32
PID 2056 wrote to memory of 2248	2056	rundll32.exe	32
PID 2056 wrote to memory of 1152	2056	rundll32.exe	35
PID 2056 wrote to memory of 1152	2056	rundll32.exe	35
PID 2056 wrote to memory of 1152	2056	rundll32.exe	35
PID 2056 wrote to memory of 1152	2056	rundll32.exe	35
PID 2056 wrote to memory of 2560	2056	rundll32.exe	36
PID 2056 wrote to memory of 2560	2056	rundll32.exe	36
PID 2056 wrote to memory of 2560	2056	rundll32.exe	36
PID 2056 wrote to memory of 2560	2056	rundll32.exe	36
PID 2056 wrote to memory of 2760	2056	rundll32.exe	37
PID 2056 wrote to memory of 2760	2056	rundll32.exe	37
PID 2056 wrote to memory of 2760	2056	rundll32.exe	37
PID 2056 wrote to memory of 2760	2056	rundll32.exe	37
PID 2056 wrote to memory of 2720	2056	rundll32.exe	38
PID 2056 wrote to memory of 2720	2056	rundll32.exe	38
PID 2056 wrote to memory of 2720	2056	rundll32.exe	38
PID 2056 wrote to memory of 2720	2056	rundll32.exe	38
PID 2056 wrote to memory of 2812	2056	rundll32.exe	39
PID 2056 wrote to memory of 2812	2056	rundll32.exe	39
PID 2056 wrote to memory of 2812	2056	rundll32.exe	39
PID 2056 wrote to memory of 2812	2056	rundll32.exe	39
PID 2056 wrote to memory of 2828	2056	rundll32.exe	40
PID 2056 wrote to memory of 2828	2056	rundll32.exe	40
PID 2056 wrote to memory of 2828	2056	rundll32.exe	40
PID 2056 wrote to memory of 2828	2056	rundll32.exe	40
PID 2056 wrote to memory of 2832	2056	rundll32.exe	41
PID 2056 wrote to memory of 2832	2056	rundll32.exe	41
PID 2056 wrote to memory of 2832	2056	rundll32.exe	41
PID 2056 wrote to memory of 2832	2056	rundll32.exe	41
PID 2056 wrote to memory of 2868	2056	rundll32.exe	42
PID 2056 wrote to memory of 2868	2056	rundll32.exe	42
PID 2056 wrote to memory of 2868	2056	rundll32.exe	42
PID 2056 wrote to memory of 2868	2056	rundll32.exe	42

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\67b71a440987b18b40c6e43a519633bb43756eaf46ff105a1591515ee8a0dda6N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\67b71a440987b18b40c6e43a519633bb43756eaf46ff105a1591515ee8a0dda6N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2056
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2056 -s 308
    3⤵
    - Program crash
    PID:1160
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2248
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 d2-86-1b-b3-c6-8e
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1152
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 98-63-c3-19-50-f9
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2560
- - C:\Windows\SysWOW64\arp.exe
    arp -s 136.243.76.173 43-84-25-fb-72-f0
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2760
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 ec-2e-f2-31-33-1e
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2720
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 c8-f7-89-88-90-8d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2812
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 49-e5-67-73-bb-b6
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2828
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 7b-7b-fa-99-1c-b5
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2832
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 e7-44-48-20-b5-9f
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2868

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/2056-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2056-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2056-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download