a05b43f0ff416c7c1c3f2310f24fb38860a3c59468a531956feb6c3f5a314c90

Analysis

max time kernel
141s
max time network
76s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
02-01-2025 02:44

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General

Target

a05b43f0ff416c7c1c3f2310f24fb38860a3c59468a531956feb6c3f5a314c90.dll
Size

80KB
MD5

211ed6cf8da10c850d7de82e73d2cbe9
SHA1

f64db5cabda0a4bc471069022e729465f7c545b1
SHA256

a05b43f0ff416c7c1c3f2310f24fb38860a3c59468a531956feb6c3f5a314c90
SHA512

9e344a0bf2b8c2698c3c1cbafd72f4f54a21ba05b1f4e559a0c682b9f9e871ef2b2e5a0e80e6328b44230a9572e16af3c98380983eb8207929c46ce9a21ef64c
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEXG3T:5dbwovEVyqgoZmZXWfIdQdRaefPzD

Score

8^/10

discovery upx

Malware Config

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
4	1356	rundll32.exe
8	1356	rundll32.exe
9	1356	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
2868	arp.exe
2816	arp.exe
2856	arp.exe
2932	arp.exe
2980	arp.exe
2988	arp.exe
2916	arp.exe
2804	arp.exe
2860	arp.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1356-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1356-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1356-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1356-5-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1356-6-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1356-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1356-8-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1356-9-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1356-16-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1356-17-0x0000000010000000-0x0000000010033000-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 4 IoCs

pid	Process
1356	rundll32.exe
1356	rundll32.exe
1356	rundll32.exe
1356	rundll32.exe

Suspicious behavior: LoadsDriver 2 IoCs

pid	Process
464	Process not Found
464	Process not Found

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1356	rundll32.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 1356	2660	rundll32.exe	29
PID 2660 wrote to memory of 1356	2660	rundll32.exe	29
PID 2660 wrote to memory of 1356	2660	rundll32.exe	29
PID 2660 wrote to memory of 1356	2660	rundll32.exe	29
PID 2660 wrote to memory of 1356	2660	rundll32.exe	29
PID 2660 wrote to memory of 1356	2660	rundll32.exe	29
PID 2660 wrote to memory of 1356	2660	rundll32.exe	29
PID 1356 wrote to memory of 2804	1356	rundll32.exe	30
PID 1356 wrote to memory of 2804	1356	rundll32.exe	30
PID 1356 wrote to memory of 2804	1356	rundll32.exe	30
PID 1356 wrote to memory of 2804	1356	rundll32.exe	30
PID 1356 wrote to memory of 2816	1356	rundll32.exe	32
PID 1356 wrote to memory of 2816	1356	rundll32.exe	32
PID 1356 wrote to memory of 2816	1356	rundll32.exe	32
PID 1356 wrote to memory of 2816	1356	rundll32.exe	32
PID 1356 wrote to memory of 2856	1356	rundll32.exe	33
PID 1356 wrote to memory of 2856	1356	rundll32.exe	33
PID 1356 wrote to memory of 2856	1356	rundll32.exe	33
PID 1356 wrote to memory of 2856	1356	rundll32.exe	33
PID 1356 wrote to memory of 2860	1356	rundll32.exe	34
PID 1356 wrote to memory of 2860	1356	rundll32.exe	34
PID 1356 wrote to memory of 2860	1356	rundll32.exe	34
PID 1356 wrote to memory of 2860	1356	rundll32.exe	34
PID 1356 wrote to memory of 2868	1356	rundll32.exe	35
PID 1356 wrote to memory of 2868	1356	rundll32.exe	35
PID 1356 wrote to memory of 2868	1356	rundll32.exe	35
PID 1356 wrote to memory of 2868	1356	rundll32.exe	35
PID 1356 wrote to memory of 2932	1356	rundll32.exe	37
PID 1356 wrote to memory of 2932	1356	rundll32.exe	37
PID 1356 wrote to memory of 2932	1356	rundll32.exe	37
PID 1356 wrote to memory of 2932	1356	rundll32.exe	37
PID 1356 wrote to memory of 2980	1356	rundll32.exe	38
PID 1356 wrote to memory of 2980	1356	rundll32.exe	38
PID 1356 wrote to memory of 2980	1356	rundll32.exe	38
PID 1356 wrote to memory of 2980	1356	rundll32.exe	38
PID 1356 wrote to memory of 2988	1356	rundll32.exe	39
PID 1356 wrote to memory of 2988	1356	rundll32.exe	39
PID 1356 wrote to memory of 2988	1356	rundll32.exe	39
PID 1356 wrote to memory of 2988	1356	rundll32.exe	39
PID 1356 wrote to memory of 2916	1356	rundll32.exe	40
PID 1356 wrote to memory of 2916	1356	rundll32.exe	40
PID 1356 wrote to memory of 2916	1356	rundll32.exe	40
PID 1356 wrote to memory of 2916	1356	rundll32.exe	40
PID 1356 wrote to memory of 2600	1356	rundll32.exe	48
PID 1356 wrote to memory of 2600	1356	rundll32.exe	48
PID 1356 wrote to memory of 2600	1356	rundll32.exe	48
PID 1356 wrote to memory of 2600	1356	rundll32.exe	48

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a05b43f0ff416c7c1c3f2310f24fb38860a3c59468a531956feb6c3f5a314c90.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2660
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a05b43f0ff416c7c1c3f2310f24fb38860a3c59468a531956feb6c3f5a314c90.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:1356
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2804
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 d9-5d-84-88-d1-13
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2816
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 37-51-44-68-b0-fe
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2856
- - C:\Windows\SysWOW64\arp.exe
    arp -s 154.61.71.51 3b-de-71-d4-d2-91
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2860
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 2d-6d-ba-d7-8b-e7
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2868
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 36-22-59-80-cc-97
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2932
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 4f-b7-45-f9-97-63
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2980
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 a5-30-76-f2-59-ec
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2988
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 25-7e-30-b1-6c-0e
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2916
- - C:\Windows\SysWOW64\arp.exe
    arp -d
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2600

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/1356-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1356-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1356-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1356-5-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1356-6-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1356-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1356-8-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1356-9-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1356-16-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1356-17-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download