75c77a6605110682bca7169b9af69e01781bda774f3ad11e785d0b8bee9aea76

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 22:53

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General

Target

75c77a6605110682bca7169b9af69e01781bda774f3ad11e785d0b8bee9aea76.dll
Size

80KB
MD5

231338e073ad7739914ed682a4cd5978
SHA1

022a52cbd32c7763ab0e7158a2401d9a10562d19
SHA256

75c77a6605110682bca7169b9af69e01781bda774f3ad11e785d0b8bee9aea76
SHA512

e1cb226a4a7253c2fef5ed3c9bd4d28951a4e79a492f2832dffeb80aceb2bcc89e34e0a911970c559a6aec7e3b972aa76ac6beab10eac81f7ee00b450907a8b3
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEPejP:5dbwovEVyqgoZmZXWfIdQdRaefPr

Score

8^/10

discovery upx

Malware Config

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
4	3020	rundll32.exe
8	3020	rundll32.exe
9	3020	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
2708	arp.exe
2824	arp.exe
2904	arp.exe
2984	arp.exe
2664	arp.exe
2768	arp.exe
2796	arp.exe
3056	arp.exe
2704	arp.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3020-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/3020-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/3020-5-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/3020-6-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/3020-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/3020-14-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/3020-15-0x0000000010000000-0x0000000010033000-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	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	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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3020	rundll32.exe
3020	rundll32.exe
3020	rundll32.exe
3020	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	3020	rundll32.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 3020	3016	rundll32.exe	30
PID 3016 wrote to memory of 3020	3016	rundll32.exe	30
PID 3016 wrote to memory of 3020	3016	rundll32.exe	30
PID 3016 wrote to memory of 3020	3016	rundll32.exe	30
PID 3016 wrote to memory of 3020	3016	rundll32.exe	30
PID 3016 wrote to memory of 3020	3016	rundll32.exe	30
PID 3016 wrote to memory of 3020	3016	rundll32.exe	30
PID 3020 wrote to memory of 2984	3020	rundll32.exe	31
PID 3020 wrote to memory of 2984	3020	rundll32.exe	31
PID 3020 wrote to memory of 2984	3020	rundll32.exe	31
PID 3020 wrote to memory of 2984	3020	rundll32.exe	31
PID 3020 wrote to memory of 3056	3020	rundll32.exe	33
PID 3020 wrote to memory of 3056	3020	rundll32.exe	33
PID 3020 wrote to memory of 3056	3020	rundll32.exe	33
PID 3020 wrote to memory of 3056	3020	rundll32.exe	33
PID 3020 wrote to memory of 2664	3020	rundll32.exe	34
PID 3020 wrote to memory of 2664	3020	rundll32.exe	34
PID 3020 wrote to memory of 2664	3020	rundll32.exe	34
PID 3020 wrote to memory of 2664	3020	rundll32.exe	34
PID 3020 wrote to memory of 2704	3020	rundll32.exe	35
PID 3020 wrote to memory of 2704	3020	rundll32.exe	35
PID 3020 wrote to memory of 2704	3020	rundll32.exe	35
PID 3020 wrote to memory of 2704	3020	rundll32.exe	35
PID 3020 wrote to memory of 2708	3020	rundll32.exe	36
PID 3020 wrote to memory of 2708	3020	rundll32.exe	36
PID 3020 wrote to memory of 2708	3020	rundll32.exe	36
PID 3020 wrote to memory of 2708	3020	rundll32.exe	36
PID 3020 wrote to memory of 2768	3020	rundll32.exe	38
PID 3020 wrote to memory of 2768	3020	rundll32.exe	38
PID 3020 wrote to memory of 2768	3020	rundll32.exe	38
PID 3020 wrote to memory of 2768	3020	rundll32.exe	38
PID 3020 wrote to memory of 2796	3020	rundll32.exe	39
PID 3020 wrote to memory of 2796	3020	rundll32.exe	39
PID 3020 wrote to memory of 2796	3020	rundll32.exe	39
PID 3020 wrote to memory of 2796	3020	rundll32.exe	39
PID 3020 wrote to memory of 2824	3020	rundll32.exe	40
PID 3020 wrote to memory of 2824	3020	rundll32.exe	40
PID 3020 wrote to memory of 2824	3020	rundll32.exe	40
PID 3020 wrote to memory of 2824	3020	rundll32.exe	40
PID 3020 wrote to memory of 2904	3020	rundll32.exe	41
PID 3020 wrote to memory of 2904	3020	rundll32.exe	41
PID 3020 wrote to memory of 2904	3020	rundll32.exe	41
PID 3020 wrote to memory of 2904	3020	rundll32.exe	41
PID 3020 wrote to memory of 2728	3020	rundll32.exe	49
PID 3020 wrote to memory of 2728	3020	rundll32.exe	49
PID 3020 wrote to memory of 2728	3020	rundll32.exe	49
PID 3020 wrote to memory of 2728	3020	rundll32.exe	49

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\75c77a6605110682bca7169b9af69e01781bda774f3ad11e785d0b8bee9aea76.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\75c77a6605110682bca7169b9af69e01781bda774f3ad11e785d0b8bee9aea76.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:3020
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2984
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 2f-2e-42-3e-f9-3f
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3056
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 3b-c8-01-71-3e-ce
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2664
- - C:\Windows\SysWOW64\arp.exe
    arp -s 49.12.169.207 73-07-6a-76-1e-fc
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2704
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 2b-12-e7-c8-55-59
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2708
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 86-be-58-83-49-82
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2768
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 cf-ec-20-d8-59-31
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2796
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 ba-f5-d2-b3-db-be
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2824
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 f5-4d-29-dd-87-d2
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2904
- - C:\Windows\SysWOW64\arp.exe
    arp -d
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2728

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/3020-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3020-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3020-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3020-5-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3020-6-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3020-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3020-14-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3020-15-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download