bd8c6b416be85eb15fe41400211ab6884f2a9481e270f3610c2b4d058eadfe68

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 05:59

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General

Target

bd8c6b416be85eb15fe41400211ab6884f2a9481e270f3610c2b4d058eadfe68.dll
Size

80KB
MD5

fbf77a7949c96770cf99b80e186c20ed
SHA1

272a23a6f9c0f2475a03a3f49fb4f38667d7f9ef
SHA256

bd8c6b416be85eb15fe41400211ab6884f2a9481e270f3610c2b4d058eadfe68
SHA512

5424ac6cc5ed545231da5f72f476595d287de6f3b17429e1ed31fd3a6c651088ec6ba1504dab0a921d2a37c6b251501a016af87ed806e6b2c3639d4fc4c2cd11
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEhR0KXW+OY/j:5dbwovEVyqgoZmZXWfIdQdRaefPCRhVv

Score

8^/10

discovery upx

Malware Config

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
4	2764	rundll32.exe
8	2764	rundll32.exe
9	2764	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
2800	arp.exe
2552	arp.exe
2092	arp.exe
2568	arp.exe
2108	arp.exe
3040	arp.exe
552	arp.exe
2840	arp.exe
2580	arp.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2764-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2764-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2764-4-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2764-11-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2764-12-0x0000000010000000-0x0000000010033000-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	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 behavior: EnumeratesProcesses 3 IoCs

pid	Process
2764	rundll32.exe
2764	rundll32.exe
2764	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	2764	rundll32.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2764	2692	rundll32.exe	31
PID 2692 wrote to memory of 2764	2692	rundll32.exe	31
PID 2692 wrote to memory of 2764	2692	rundll32.exe	31
PID 2692 wrote to memory of 2764	2692	rundll32.exe	31
PID 2692 wrote to memory of 2764	2692	rundll32.exe	31
PID 2692 wrote to memory of 2764	2692	rundll32.exe	31
PID 2692 wrote to memory of 2764	2692	rundll32.exe	31
PID 2764 wrote to memory of 3040	2764	rundll32.exe	32
PID 2764 wrote to memory of 3040	2764	rundll32.exe	32
PID 2764 wrote to memory of 3040	2764	rundll32.exe	32
PID 2764 wrote to memory of 3040	2764	rundll32.exe	32
PID 2764 wrote to memory of 2552	2764	rundll32.exe	34
PID 2764 wrote to memory of 2552	2764	rundll32.exe	34
PID 2764 wrote to memory of 2552	2764	rundll32.exe	34
PID 2764 wrote to memory of 2552	2764	rundll32.exe	34
PID 2764 wrote to memory of 552	2764	rundll32.exe	35
PID 2764 wrote to memory of 552	2764	rundll32.exe	35
PID 2764 wrote to memory of 552	2764	rundll32.exe	35
PID 2764 wrote to memory of 552	2764	rundll32.exe	35
PID 2764 wrote to memory of 2800	2764	rundll32.exe	37
PID 2764 wrote to memory of 2800	2764	rundll32.exe	37
PID 2764 wrote to memory of 2800	2764	rundll32.exe	37
PID 2764 wrote to memory of 2800	2764	rundll32.exe	37
PID 2764 wrote to memory of 2840	2764	rundll32.exe	39
PID 2764 wrote to memory of 2840	2764	rundll32.exe	39
PID 2764 wrote to memory of 2840	2764	rundll32.exe	39
PID 2764 wrote to memory of 2840	2764	rundll32.exe	39
PID 2764 wrote to memory of 2580	2764	rundll32.exe	40
PID 2764 wrote to memory of 2580	2764	rundll32.exe	40
PID 2764 wrote to memory of 2580	2764	rundll32.exe	40
PID 2764 wrote to memory of 2580	2764	rundll32.exe	40
PID 2764 wrote to memory of 2092	2764	rundll32.exe	43
PID 2764 wrote to memory of 2092	2764	rundll32.exe	43
PID 2764 wrote to memory of 2092	2764	rundll32.exe	43
PID 2764 wrote to memory of 2092	2764	rundll32.exe	43
PID 2764 wrote to memory of 2568	2764	rundll32.exe	44
PID 2764 wrote to memory of 2568	2764	rundll32.exe	44
PID 2764 wrote to memory of 2568	2764	rundll32.exe	44
PID 2764 wrote to memory of 2568	2764	rundll32.exe	44
PID 2764 wrote to memory of 2108	2764	rundll32.exe	45
PID 2764 wrote to memory of 2108	2764	rundll32.exe	45
PID 2764 wrote to memory of 2108	2764	rundll32.exe	45
PID 2764 wrote to memory of 2108	2764	rundll32.exe	45
PID 2764 wrote to memory of 840	2764	rundll32.exe	50
PID 2764 wrote to memory of 840	2764	rundll32.exe	50
PID 2764 wrote to memory of 840	2764	rundll32.exe	50
PID 2764 wrote to memory of 840	2764	rundll32.exe	50

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bd8c6b416be85eb15fe41400211ab6884f2a9481e270f3610c2b4d058eadfe68.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bd8c6b416be85eb15fe41400211ab6884f2a9481e270f3610c2b4d058eadfe68.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:2764
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3040
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 03-8f-fa-5e-5f-71
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2552
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 c6-ee-30-57-22-c2
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:552
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.180 e6-bb-67-d0-72-35
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2800
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 a4-cd-42-f1-b1-a0
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2840
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 53-a4-f1-37-17-ed
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2580
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 0e-5a-0a-00-a7-9e
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2092
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 3c-4a-d3-4d-76-33
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2568
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 a1-88-f0-05-66-17
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2108
- - C:\Windows\SysWOW64\arp.exe
    arp -d
    3⤵
    - System Location Discovery: System Language Discovery
    PID:840

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

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Downloads

memory/2764-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2764-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2764-4-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2764-11-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2764-12-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download