94434f0d796da42c1baed9ea3e1ee54f36bd91ec6eabc95f4cf9d239bd0b633f

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
20-12-2024 05:43

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General

Target

94434f0d796da42c1baed9ea3e1ee54f36bd91ec6eabc95f4cf9d239bd0b633fN.dll
Size

80KB
MD5

a93ed204a90019a4f883d9531a2d3270
SHA1

b7f0267c9e69471c60426f6389e48532677b50a6
SHA256

94434f0d796da42c1baed9ea3e1ee54f36bd91ec6eabc95f4cf9d239bd0b633f
SHA512

8e0154827a889340d5c3ca2087381e2cff4ae35117385071f9094ca2014b1abe9aaad6a3c467d7a8d928c3c3971d53f706a761fed01aced35d5b851bf1d61c6b
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEtLE7:5dbwovEVyqgoZmZXWfIdQdRaefP6E7

Score

8^/10

discovery upx

Malware Config

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
5	2564	rundll32.exe
8	2564	rundll32.exe
9	2564	rundll32.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\e:	rundll32.exe

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
2920	arp.exe
2256	arp.exe
2492	arp.exe
3004	arp.exe
2368	arp.exe
1828	arp.exe
2268	arp.exe
2164	arp.exe
2328	arp.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2564-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2564-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2564-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2564-6-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2564-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2564-8-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2564-14-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2564-16-0x0000000010000000-0x0000000010033000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 11 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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2564	rundll32.exe
2564	rundll32.exe
2564	rundll32.exe

Suspicious behavior: LoadsDriver 2 IoCs

pid	Process
476	Process not Found
476	Process not Found

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2564	rundll32.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2564	2112	rundll32.exe	30
PID 2112 wrote to memory of 2564	2112	rundll32.exe	30
PID 2112 wrote to memory of 2564	2112	rundll32.exe	30
PID 2112 wrote to memory of 2564	2112	rundll32.exe	30
PID 2112 wrote to memory of 2564	2112	rundll32.exe	30
PID 2112 wrote to memory of 2564	2112	rundll32.exe	30
PID 2112 wrote to memory of 2564	2112	rundll32.exe	30
PID 2564 wrote to memory of 2368	2564	rundll32.exe	31
PID 2564 wrote to memory of 2368	2564	rundll32.exe	31
PID 2564 wrote to memory of 2368	2564	rundll32.exe	31
PID 2564 wrote to memory of 2368	2564	rundll32.exe	31
PID 2564 wrote to memory of 2920	2564	rundll32.exe	33
PID 2564 wrote to memory of 2920	2564	rundll32.exe	33
PID 2564 wrote to memory of 2920	2564	rundll32.exe	33
PID 2564 wrote to memory of 2920	2564	rundll32.exe	33
PID 2564 wrote to memory of 1828	2564	rundll32.exe	34
PID 2564 wrote to memory of 1828	2564	rundll32.exe	34
PID 2564 wrote to memory of 1828	2564	rundll32.exe	34
PID 2564 wrote to memory of 1828	2564	rundll32.exe	34
PID 2564 wrote to memory of 2268	2564	rundll32.exe	35
PID 2564 wrote to memory of 2268	2564	rundll32.exe	35
PID 2564 wrote to memory of 2268	2564	rundll32.exe	35
PID 2564 wrote to memory of 2268	2564	rundll32.exe	35
PID 2564 wrote to memory of 2256	2564	rundll32.exe	36
PID 2564 wrote to memory of 2256	2564	rundll32.exe	36
PID 2564 wrote to memory of 2256	2564	rundll32.exe	36
PID 2564 wrote to memory of 2256	2564	rundll32.exe	36
PID 2564 wrote to memory of 2164	2564	rundll32.exe	38
PID 2564 wrote to memory of 2164	2564	rundll32.exe	38
PID 2564 wrote to memory of 2164	2564	rundll32.exe	38
PID 2564 wrote to memory of 2164	2564	rundll32.exe	38
PID 2564 wrote to memory of 2492	2564	rundll32.exe	39
PID 2564 wrote to memory of 2492	2564	rundll32.exe	39
PID 2564 wrote to memory of 2492	2564	rundll32.exe	39
PID 2564 wrote to memory of 2492	2564	rundll32.exe	39
PID 2564 wrote to memory of 2328	2564	rundll32.exe	41
PID 2564 wrote to memory of 2328	2564	rundll32.exe	41
PID 2564 wrote to memory of 2328	2564	rundll32.exe	41
PID 2564 wrote to memory of 2328	2564	rundll32.exe	41
PID 2564 wrote to memory of 3004	2564	rundll32.exe	42
PID 2564 wrote to memory of 3004	2564	rundll32.exe	42
PID 2564 wrote to memory of 3004	2564	rundll32.exe	42
PID 2564 wrote to memory of 3004	2564	rundll32.exe	42
PID 2564 wrote to memory of 2648	2564	rundll32.exe	49
PID 2564 wrote to memory of 2648	2564	rundll32.exe	49
PID 2564 wrote to memory of 2648	2564	rundll32.exe	49
PID 2564 wrote to memory of 2648	2564	rundll32.exe	49

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\94434f0d796da42c1baed9ea3e1ee54f36bd91ec6eabc95f4cf9d239bd0b633fN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\94434f0d796da42c1baed9ea3e1ee54f36bd91ec6eabc95f4cf9d239bd0b633fN.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Enumerates connected drives
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2564
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2368
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 2b-99-24-bd-a6-5f
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2920
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 47-85-f2-08-21-d7
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1828
- - C:\Windows\SysWOW64\arp.exe
    arp -s 136.243.76.21 ba-73-b5-05-98-3d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2268
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 8f-27-5b-c5-90-8d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2256
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 33-73-bd-bf-85-9f
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2164
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 c3-4a-6f-ad-7a-7a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2492
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 a6-62-b4-c0-b8-e8
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2328
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 6f-bb-d1-ad-4b-21
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3004
- - C:\Windows\SysWOW64\arp.exe
    arp -d
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

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/2564-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2564-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2564-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2564-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2564-6-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2564-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2564-8-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2564-14-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2564-16-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download