a7f5e9de3b8db2f681dc9f17e72d765bb7d16a0933d28f732665df316f2da370

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 02:50

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General

Target

a7f5e9de3b8db2f681dc9f17e72d765bb7d16a0933d28f732665df316f2da370N.dll
Size

80KB
MD5

900ec7504b8a66462c35eec7eb060f70
SHA1

379a7c8910d4480b0f1e93ef7473bf927eb31b2e
SHA256

a7f5e9de3b8db2f681dc9f17e72d765bb7d16a0933d28f732665df316f2da370
SHA512

1cfdc4faf6904d6a2082aae377a578f18ac870c163adcfd419f585c4ce895aee8b1d0e7edf40a0962d6aeffcf684d68f3ced896599f1281842760b07f0fe1df2
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPE/Rutge5:5dbwovEVyqgoZmZXWfIdQdRaefPOR7e5

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
2512	arp.exe
2748	arp.exe
3004	arp.exe
2800	arp.exe
2704	arp.exe
1256	arp.exe
2708	arp.exe
2840	arp.exe
2796	arp.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2512-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2512-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2680-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2680-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1256-4-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2708-5-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2748-6-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2704-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2796-8-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2840-11-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1256-15-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/3004-16-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2708-13-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2800-17-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2748-10-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/3004-23-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2704-25-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2796-21-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2800-19-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2840-26-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process
2564	2680	WerFault.exe

System Location Discovery: System Language Discovery 1 TTPs 10 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	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

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	2680	rundll32.exe
Token: SeDebugPrivilege	2512	arp.exe
Token: SeDebugPrivilege	1256	arp.exe
Token: SeDebugPrivilege	2708	arp.exe
Token: SeDebugPrivilege	2748	arp.exe
Token: SeDebugPrivilege	2704	arp.exe
Token: SeDebugPrivilege	2796	arp.exe
Token: SeDebugPrivilege	2800	arp.exe
Token: SeDebugPrivilege	3004	arp.exe
Token: SeDebugPrivilege	2840	arp.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 2680	2988	rundll32.exe	30
PID 2988 wrote to memory of 2680	2988	rundll32.exe	30
PID 2988 wrote to memory of 2680	2988	rundll32.exe	30
PID 2988 wrote to memory of 2680	2988	rundll32.exe	30
PID 2988 wrote to memory of 2680	2988	rundll32.exe	30
PID 2988 wrote to memory of 2680	2988	rundll32.exe	30
PID 2988 wrote to memory of 2680	2988	rundll32.exe	30
PID 2680 wrote to memory of 2564	2680	rundll32.exe	31
PID 2680 wrote to memory of 2564	2680	rundll32.exe	31
PID 2680 wrote to memory of 2564	2680	rundll32.exe	31
PID 2680 wrote to memory of 2564	2680	rundll32.exe	31
PID 2680 wrote to memory of 2512	2680	rundll32.exe	32
PID 2680 wrote to memory of 2512	2680	rundll32.exe	32
PID 2680 wrote to memory of 2512	2680	rundll32.exe	32
PID 2680 wrote to memory of 2512	2680	rundll32.exe	32
PID 2680 wrote to memory of 2708	2680	rundll32.exe	35
PID 2680 wrote to memory of 2708	2680	rundll32.exe	35
PID 2680 wrote to memory of 2708	2680	rundll32.exe	35
PID 2680 wrote to memory of 2708	2680	rundll32.exe	35
PID 2680 wrote to memory of 1256	2680	rundll32.exe	36
PID 2680 wrote to memory of 1256	2680	rundll32.exe	36
PID 2680 wrote to memory of 1256	2680	rundll32.exe	36
PID 2680 wrote to memory of 1256	2680	rundll32.exe	36
PID 2680 wrote to memory of 2704	2680	rundll32.exe	37
PID 2680 wrote to memory of 2704	2680	rundll32.exe	37
PID 2680 wrote to memory of 2704	2680	rundll32.exe	37
PID 2680 wrote to memory of 2704	2680	rundll32.exe	37
PID 2680 wrote to memory of 2748	2680	rundll32.exe	38
PID 2680 wrote to memory of 2748	2680	rundll32.exe	38
PID 2680 wrote to memory of 2748	2680	rundll32.exe	38
PID 2680 wrote to memory of 2748	2680	rundll32.exe	38
PID 2680 wrote to memory of 2796	2680	rundll32.exe	40
PID 2680 wrote to memory of 2796	2680	rundll32.exe	40
PID 2680 wrote to memory of 2796	2680	rundll32.exe	40
PID 2680 wrote to memory of 2796	2680	rundll32.exe	40
PID 2680 wrote to memory of 2800	2680	rundll32.exe	41
PID 2680 wrote to memory of 2800	2680	rundll32.exe	41
PID 2680 wrote to memory of 2800	2680	rundll32.exe	41
PID 2680 wrote to memory of 2800	2680	rundll32.exe	41
PID 2680 wrote to memory of 2840	2680	rundll32.exe	43
PID 2680 wrote to memory of 2840	2680	rundll32.exe	43
PID 2680 wrote to memory of 2840	2680	rundll32.exe	43
PID 2680 wrote to memory of 2840	2680	rundll32.exe	43
PID 2680 wrote to memory of 3004	2680	rundll32.exe	44
PID 2680 wrote to memory of 3004	2680	rundll32.exe	44
PID 2680 wrote to memory of 3004	2680	rundll32.exe	44
PID 2680 wrote to memory of 3004	2680	rundll32.exe	44

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a7f5e9de3b8db2f681dc9f17e72d765bb7d16a0933d28f732665df316f2da370N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a7f5e9de3b8db2f681dc9f17e72d765bb7d16a0933d28f732665df316f2da370N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2680
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2680 -s 308
    3⤵
    - Program crash
    PID:2564
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2512
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 ac-4e-7d-ce-71-c4
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2708
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 00-15-41-79-ad-cd
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1256
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.182 8a-66-dc-4c-28-35
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2704
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 ef-00-82-f3-4d-86
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2748
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 c1-06-0f-11-26-19
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2796
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 04-4c-63-a3-0d-5d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2800
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 84-17-ad-bb-9c-b1
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2840
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 1e-d4-fe-7a-81-f1
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:3004

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

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/1256-15-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1256-4-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2512-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2512-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2680-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2680-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2704-25-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2704-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2708-5-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2708-13-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2748-10-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2748-6-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2796-8-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2796-21-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2800-17-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2800-19-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2840-11-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2840-26-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3004-16-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3004-23-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download