ab2fe37cd76f9a888c1500a1138b601e1e548fb03c15845d7078f9b7c2ff9156

Analysis

max time kernel
93s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2024 19:42

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General

Target

ab2fe37cd76f9a888c1500a1138b601e1e548fb03c15845d7078f9b7c2ff9156.dll
Size

80KB
MD5

1cf238bbd395edf2ee4f8ee43eba2c62
SHA1

ba661c739f8b0b6586adb39c5d526f9bd0dc4078
SHA256

ab2fe37cd76f9a888c1500a1138b601e1e548fb03c15845d7078f9b7c2ff9156
SHA512

2b730e767b714d6cf0ceaff7861945d322fc8073861e833554cf4fdda448763d526a608a61c1cbb29874f02ddc33661ecd3cc4e13e0e790995b73f4a785322e0
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEdXCQSUsG:5dbwovEVyqgoZmZXWfIdQdRaefPkXCQx

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
4092	arp.exe
548	arp.exe
4700	arp.exe
3536	arp.exe
2004	arp.exe
1692	arp.exe
4600	arp.exe
4692	arp.exe
1476	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1128-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/1128-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1760	1128	WerFault.exe	84

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 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1128	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 812 wrote to memory of 1128	812	rundll32.exe	84
PID 812 wrote to memory of 1128	812	rundll32.exe	84
PID 812 wrote to memory of 1128	812	rundll32.exe	84
PID 1128 wrote to memory of 4700	1128	rundll32.exe	85
PID 1128 wrote to memory of 4700	1128	rundll32.exe	85
PID 1128 wrote to memory of 4700	1128	rundll32.exe	85
PID 1128 wrote to memory of 548	1128	rundll32.exe	89
PID 1128 wrote to memory of 548	1128	rundll32.exe	89
PID 1128 wrote to memory of 548	1128	rundll32.exe	89
PID 1128 wrote to memory of 4600	1128	rundll32.exe	90
PID 1128 wrote to memory of 4600	1128	rundll32.exe	90
PID 1128 wrote to memory of 4600	1128	rundll32.exe	90
PID 1128 wrote to memory of 4092	1128	rundll32.exe	91
PID 1128 wrote to memory of 4092	1128	rundll32.exe	91
PID 1128 wrote to memory of 4092	1128	rundll32.exe	91
PID 1128 wrote to memory of 3536	1128	rundll32.exe	92
PID 1128 wrote to memory of 3536	1128	rundll32.exe	92
PID 1128 wrote to memory of 3536	1128	rundll32.exe	92
PID 1128 wrote to memory of 4692	1128	rundll32.exe	93
PID 1128 wrote to memory of 4692	1128	rundll32.exe	93
PID 1128 wrote to memory of 4692	1128	rundll32.exe	93
PID 1128 wrote to memory of 1692	1128	rundll32.exe	94
PID 1128 wrote to memory of 1692	1128	rundll32.exe	94
PID 1128 wrote to memory of 1692	1128	rundll32.exe	94
PID 1128 wrote to memory of 2004	1128	rundll32.exe	95
PID 1128 wrote to memory of 2004	1128	rundll32.exe	95
PID 1128 wrote to memory of 2004	1128	rundll32.exe	95
PID 1128 wrote to memory of 1476	1128	rundll32.exe	96
PID 1128 wrote to memory of 1476	1128	rundll32.exe	96
PID 1128 wrote to memory of 1476	1128	rundll32.exe	96

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ab2fe37cd76f9a888c1500a1138b601e1e548fb03c15845d7078f9b7c2ff9156.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:812
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ab2fe37cd76f9a888c1500a1138b601e1e548fb03c15845d7078f9b7c2ff9156.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1128
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4700
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 ab-81-69-aa-7c-5d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:548
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 31-47-b6-a5-c9-8a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4600
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.182 4c-5a-dc-3f-5b-cd
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4092
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 c1-04-77-96-b6-e6
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3536
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 b7-20-b7-1e-8a-8e
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4692
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 87-a7-b5-54-f1-31
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1692
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 80-46-b9-83-07-f0
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2004
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 ba-98-07-51-8e-df
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1476
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1128 -s 728
    3⤵
    - Program crash
    PID:1760

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1128 -ip 1128
1⤵
PID:2364

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

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Downloads

memory/1128-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1128-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download