5b7cd47fc832296aaaea21692c1401eed0056950600bb5767ef6ec08dc285b6a

Analysis

max time kernel
63s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
03-01-2025 17:33

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General

Target

5b7cd47fc832296aaaea21692c1401eed0056950600bb5767ef6ec08dc285b6aN.dll
Size

80KB
MD5

378c320c9023c0fe7600916e0ba93340
SHA1

bdd021823a09d6c6c572a3ab25275ff4433f727a
SHA256

5b7cd47fc832296aaaea21692c1401eed0056950600bb5767ef6ec08dc285b6a
SHA512

5af06722c6d0f850649e9a581bca3d5d7a8583ba403d7a7eb49ee038aac07857e751ef08ba6894b11bac83980775f8dde03cb9bb979eeecb476ca8f57f7c99a1
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPE3eVwIMl:5dbwovEVyqgoZmZXWfIdQdRaefPIahE

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 7 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
2360	arp.exe
2824	arp.exe
1976	arp.exe
2740	arp.exe
2868	arp.exe
3008	arp.exe
2800	arp.exe

UPX packed file 14 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3024-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2800-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2800-4-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/3024-6-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2360-10-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1976-19-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2824-21-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2360-18-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2868-15-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2824-11-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2868-9-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1976-8-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2740-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2740-14-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2096	3024	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 7 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	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 use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	3024	rundll32.exe
Token: SeDebugPrivilege	2800	arp.exe
Token: SeDebugPrivilege	2740	arp.exe
Token: SeDebugPrivilege	2868	arp.exe
Token: SeDebugPrivilege	2360	arp.exe
Token: SeDebugPrivilege	1976	arp.exe
Token: SeDebugPrivilege	2824	arp.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 1172 wrote to memory of 3024	1172	rundll32.exe	30
PID 1172 wrote to memory of 3024	1172	rundll32.exe	30
PID 1172 wrote to memory of 3024	1172	rundll32.exe	30
PID 1172 wrote to memory of 3024	1172	rundll32.exe	30
PID 1172 wrote to memory of 3024	1172	rundll32.exe	30
PID 1172 wrote to memory of 3024	1172	rundll32.exe	30
PID 1172 wrote to memory of 3024	1172	rundll32.exe	30
PID 3024 wrote to memory of 2800	3024	rundll32.exe	32
PID 3024 wrote to memory of 2800	3024	rundll32.exe	32
PID 3024 wrote to memory of 2800	3024	rundll32.exe	32
PID 3024 wrote to memory of 2800	3024	rundll32.exe	32
PID 3024 wrote to memory of 2096	3024	rundll32.exe	31
PID 3024 wrote to memory of 2096	3024	rundll32.exe	31
PID 3024 wrote to memory of 2096	3024	rundll32.exe	31
PID 3024 wrote to memory of 2096	3024	rundll32.exe	31
PID 3024 wrote to memory of 2360	3024	rundll32.exe	34
PID 3024 wrote to memory of 2360	3024	rundll32.exe	34
PID 3024 wrote to memory of 2360	3024	rundll32.exe	34
PID 3024 wrote to memory of 2360	3024	rundll32.exe	34
PID 3024 wrote to memory of 2824	3024	rundll32.exe	35
PID 3024 wrote to memory of 2824	3024	rundll32.exe	35
PID 3024 wrote to memory of 2824	3024	rundll32.exe	35
PID 3024 wrote to memory of 2824	3024	rundll32.exe	35
PID 3024 wrote to memory of 2868	3024	rundll32.exe	36
PID 3024 wrote to memory of 2868	3024	rundll32.exe	36
PID 3024 wrote to memory of 2868	3024	rundll32.exe	36
PID 3024 wrote to memory of 2868	3024	rundll32.exe	36
PID 3024 wrote to memory of 1976	3024	rundll32.exe	37
PID 3024 wrote to memory of 1976	3024	rundll32.exe	37
PID 3024 wrote to memory of 1976	3024	rundll32.exe	37
PID 3024 wrote to memory of 1976	3024	rundll32.exe	37
PID 3024 wrote to memory of 2740	3024	rundll32.exe	38
PID 3024 wrote to memory of 2740	3024	rundll32.exe	38
PID 3024 wrote to memory of 2740	3024	rundll32.exe	38
PID 3024 wrote to memory of 2740	3024	rundll32.exe	38

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5b7cd47fc832296aaaea21692c1401eed0056950600bb5767ef6ec08dc285b6aN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1172
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5b7cd47fc832296aaaea21692c1401eed0056950600bb5767ef6ec08dc285b6aN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3024
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3024 -s 336
    3⤵
    - Program crash
    PID:2096
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2800
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 18-70-9d-e1-94-3b
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2360
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 38-84-79-ba-84-2a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2824
- - C:\Windows\SysWOW64\arp.exe
    arp -s 136.243.76.21 1a-8c-49-9d-6e-8d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2868
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 35-df-e1-f2-13-d9
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1976
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 44-d9-44-58-79-31
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2740
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 46-ad-dd-ba-c0-f3
    3⤵
    - Network Service Discovery
    PID:3008

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/1976-19-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1976-8-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2360-18-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2360-10-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2740-14-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2740-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2800-4-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2800-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2824-21-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2824-11-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2868-15-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2868-9-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3024-6-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3024-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3024-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download