de51bcda784d935dea69ab8e2ed85b976eb27684ece11575f653e42e55dd54bb

Analysis

max time kernel
114s
max time network
74s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 01:08

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General

Target

de51bcda784d935dea69ab8e2ed85b976eb27684ece11575f653e42e55dd54bbN.dll
Size

80KB
MD5

e3fb233f868130c9d32848fdbcad4ac0
SHA1

c2cb0952d2681fea81ade9c51e7041c48ad7156f
SHA256

de51bcda784d935dea69ab8e2ed85b976eb27684ece11575f653e42e55dd54bb
SHA512

2a968b8e647e66d3ff9d7d8e7e54853ba3cd0ae3496769e09a4f83e461f0c406a0c0f80122dd5050a23502f97022b3ea66aaf153650bea71fdcf5224fa9843f0
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEJl+qo6:5dbwovEVyqgoZmZXWfIdQdRaefPocq

Score

8^/10

discovery upx

Malware Config

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
5	1804	rundll32.exe
8	1804	rundll32.exe
9	1804	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
2288	arp.exe
1892	arp.exe
2552	arp.exe
2040	arp.exe
1684	arp.exe
2364	arp.exe
2116	arp.exe
2144	arp.exe
2176	arp.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1804-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1804-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1804-5-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1804-6-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1804-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1804-13-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1804-15-0x0000000010000000-0x0000000010033000-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
1804	rundll32.exe
1804	rundll32.exe
1804	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	1804	rundll32.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 1804	2104	rundll32.exe	30
PID 2104 wrote to memory of 1804	2104	rundll32.exe	30
PID 2104 wrote to memory of 1804	2104	rundll32.exe	30
PID 2104 wrote to memory of 1804	2104	rundll32.exe	30
PID 2104 wrote to memory of 1804	2104	rundll32.exe	30
PID 2104 wrote to memory of 1804	2104	rundll32.exe	30
PID 2104 wrote to memory of 1804	2104	rundll32.exe	30
PID 1804 wrote to memory of 2364	1804	rundll32.exe	31
PID 1804 wrote to memory of 2364	1804	rundll32.exe	31
PID 1804 wrote to memory of 2364	1804	rundll32.exe	31
PID 1804 wrote to memory of 2364	1804	rundll32.exe	31
PID 1804 wrote to memory of 2116	1804	rundll32.exe	33
PID 1804 wrote to memory of 2116	1804	rundll32.exe	33
PID 1804 wrote to memory of 2116	1804	rundll32.exe	33
PID 1804 wrote to memory of 2116	1804	rundll32.exe	33
PID 1804 wrote to memory of 2288	1804	rundll32.exe	34
PID 1804 wrote to memory of 2288	1804	rundll32.exe	34
PID 1804 wrote to memory of 2288	1804	rundll32.exe	34
PID 1804 wrote to memory of 2288	1804	rundll32.exe	34
PID 1804 wrote to memory of 1892	1804	rundll32.exe	35
PID 1804 wrote to memory of 1892	1804	rundll32.exe	35
PID 1804 wrote to memory of 1892	1804	rundll32.exe	35
PID 1804 wrote to memory of 1892	1804	rundll32.exe	35
PID 1804 wrote to memory of 2552	1804	rundll32.exe	36
PID 1804 wrote to memory of 2552	1804	rundll32.exe	36
PID 1804 wrote to memory of 2552	1804	rundll32.exe	36
PID 1804 wrote to memory of 2552	1804	rundll32.exe	36
PID 1804 wrote to memory of 2144	1804	rundll32.exe	37
PID 1804 wrote to memory of 2144	1804	rundll32.exe	37
PID 1804 wrote to memory of 2144	1804	rundll32.exe	37
PID 1804 wrote to memory of 2144	1804	rundll32.exe	37
PID 1804 wrote to memory of 1684	1804	rundll32.exe	40
PID 1804 wrote to memory of 1684	1804	rundll32.exe	40
PID 1804 wrote to memory of 1684	1804	rundll32.exe	40
PID 1804 wrote to memory of 1684	1804	rundll32.exe	40
PID 1804 wrote to memory of 2176	1804	rundll32.exe	42
PID 1804 wrote to memory of 2176	1804	rundll32.exe	42
PID 1804 wrote to memory of 2176	1804	rundll32.exe	42
PID 1804 wrote to memory of 2176	1804	rundll32.exe	42
PID 1804 wrote to memory of 2040	1804	rundll32.exe	44
PID 1804 wrote to memory of 2040	1804	rundll32.exe	44
PID 1804 wrote to memory of 2040	1804	rundll32.exe	44
PID 1804 wrote to memory of 2040	1804	rundll32.exe	44
PID 1804 wrote to memory of 2640	1804	rundll32.exe	50
PID 1804 wrote to memory of 2640	1804	rundll32.exe	50
PID 1804 wrote to memory of 2640	1804	rundll32.exe	50
PID 1804 wrote to memory of 2640	1804	rundll32.exe	50

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\de51bcda784d935dea69ab8e2ed85b976eb27684ece11575f653e42e55dd54bbN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\de51bcda784d935dea69ab8e2ed85b976eb27684ece11575f653e42e55dd54bbN.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:1804
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2364
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 f0-77-aa-57-c4-38
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2116
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 be-6c-17-62-66-56
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2288
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.183 95-e4-65-8f-d8-c8
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1892
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 d9-53-c9-3c-f2-67
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2552
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 b3-5a-9a-ad-9b-ca
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2144
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 ed-55-4c-33-38-4f
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1684
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 0e-d2-1c-25-8a-f9
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2176
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 c2-ec-c9-c8-87-ad
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2040
- - C:\Windows\SysWOW64\arp.exe
    arp -d
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2640

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/1804-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1804-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1804-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1804-5-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1804-6-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1804-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1804-13-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1804-15-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download