3a17bd7ee4d67ecefd27f8e0fbd9364f232420f0024320c704437e33bc17fe6f

Analysis

max time kernel
119s
max time network
72s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 13:38

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General

Target

3a17bd7ee4d67ecefd27f8e0fbd9364f232420f0024320c704437e33bc17fe6fN.dll
Size

80KB
MD5

7695b08a7d8f2b7de4b5f5fc4907ac60
SHA1

64d4cf2596f0b2237b773535e1c0fd7f8c14fd20
SHA256

3a17bd7ee4d67ecefd27f8e0fbd9364f232420f0024320c704437e33bc17fe6f
SHA512

847b12fb6d24b065d23ae4c5dca806db7bdc88f11d4490b7813426087d345835f693cf775d5ad228abeccce3d2f10850db6773292366724193c489450af89b26
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEVo6+:5dbwovEVyqgoZmZXWfIdQdRaefPrf

Score

8^/10

discovery upx

Malware Config

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
4	2076	rundll32.exe
8	2076	rundll32.exe
9	2076	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
2680	arp.exe
2756	arp.exe
2320	arp.exe
828	arp.exe
2904	arp.exe
2628	arp.exe
2640	arp.exe
2728	arp.exe
2768	arp.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2076-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2076-4-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2076-5-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2076-6-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2076-13-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2076-14-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2076-20-0x0000000010000000-0x0000000010033000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2076	rundll32.exe
2076	rundll32.exe
2076	rundll32.exe

Suspicious behavior: LoadsDriver 2 IoCs

pid	Process
472	Process not Found
472	Process not Found

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2076	rundll32.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 2884 wrote to memory of 2076	2884	rundll32.exe	28
PID 2884 wrote to memory of 2076	2884	rundll32.exe	28
PID 2884 wrote to memory of 2076	2884	rundll32.exe	28
PID 2884 wrote to memory of 2076	2884	rundll32.exe	28
PID 2884 wrote to memory of 2076	2884	rundll32.exe	28
PID 2884 wrote to memory of 2076	2884	rundll32.exe	28
PID 2884 wrote to memory of 2076	2884	rundll32.exe	28
PID 2076 wrote to memory of 828	2076	rundll32.exe	29
PID 2076 wrote to memory of 828	2076	rundll32.exe	29
PID 2076 wrote to memory of 828	2076	rundll32.exe	29
PID 2076 wrote to memory of 828	2076	rundll32.exe	29
PID 2076 wrote to memory of 2680	2076	rundll32.exe	31
PID 2076 wrote to memory of 2680	2076	rundll32.exe	31
PID 2076 wrote to memory of 2680	2076	rundll32.exe	31
PID 2076 wrote to memory of 2680	2076	rundll32.exe	31
PID 2076 wrote to memory of 2756	2076	rundll32.exe	32
PID 2076 wrote to memory of 2756	2076	rundll32.exe	32
PID 2076 wrote to memory of 2756	2076	rundll32.exe	32
PID 2076 wrote to memory of 2756	2076	rundll32.exe	32
PID 2076 wrote to memory of 2768	2076	rundll32.exe	34
PID 2076 wrote to memory of 2768	2076	rundll32.exe	34
PID 2076 wrote to memory of 2768	2076	rundll32.exe	34
PID 2076 wrote to memory of 2768	2076	rundll32.exe	34
PID 2076 wrote to memory of 2904	2076	rundll32.exe	36
PID 2076 wrote to memory of 2904	2076	rundll32.exe	36
PID 2076 wrote to memory of 2904	2076	rundll32.exe	36
PID 2076 wrote to memory of 2904	2076	rundll32.exe	36
PID 2076 wrote to memory of 2628	2076	rundll32.exe	38
PID 2076 wrote to memory of 2628	2076	rundll32.exe	38
PID 2076 wrote to memory of 2628	2076	rundll32.exe	38
PID 2076 wrote to memory of 2628	2076	rundll32.exe	38
PID 2076 wrote to memory of 2320	2076	rundll32.exe	40
PID 2076 wrote to memory of 2320	2076	rundll32.exe	40
PID 2076 wrote to memory of 2320	2076	rundll32.exe	40
PID 2076 wrote to memory of 2320	2076	rundll32.exe	40
PID 2076 wrote to memory of 2640	2076	rundll32.exe	42
PID 2076 wrote to memory of 2640	2076	rundll32.exe	42
PID 2076 wrote to memory of 2640	2076	rundll32.exe	42
PID 2076 wrote to memory of 2640	2076	rundll32.exe	42
PID 2076 wrote to memory of 2728	2076	rundll32.exe	44
PID 2076 wrote to memory of 2728	2076	rundll32.exe	44
PID 2076 wrote to memory of 2728	2076	rundll32.exe	44
PID 2076 wrote to memory of 2728	2076	rundll32.exe	44
PID 2076 wrote to memory of 1920	2076	rundll32.exe	47
PID 2076 wrote to memory of 1920	2076	rundll32.exe	47
PID 2076 wrote to memory of 1920	2076	rundll32.exe	47
PID 2076 wrote to memory of 1920	2076	rundll32.exe	47

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a17bd7ee4d67ecefd27f8e0fbd9364f232420f0024320c704437e33bc17fe6fN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2884
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a17bd7ee4d67ecefd27f8e0fbd9364f232420f0024320c704437e33bc17fe6fN.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:2076
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:828
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 89-06-fe-37-93-f5
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2680
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 e2-60-89-b0-3e-1d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2756
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.182 e7-7a-11-a5-cf-ba
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2768
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 7c-cb-63-9a-d8-95
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2904
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 e7-9c-0f-f0-cf-1c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2628
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 7a-a0-07-d5-42-24
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2320
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 77-d8-26-9a-e2-67
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2640
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 70-ea-41-d8-4f-69
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2728
- - C:\Windows\SysWOW64\arp.exe
    arp -d
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1920

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/2076-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2076-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2076-4-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2076-5-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2076-6-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2076-13-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2076-14-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2076-20-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download