f9a7636d26a7f815e8be066a51a3682612cdcd7887da1c2363c1a734d7b0f1ac

General

Target

f9a7636d26a7f815e8be066a51a3682612cdcd7887da1c2363c1a734d7b0f1ac.dll
Size

80KB
MD5

7b0d572ae529ebe826c10d93d3176ff9
SHA1

872d3e48ea0e4507d33bbd529830dee8cb811d32
SHA256

f9a7636d26a7f815e8be066a51a3682612cdcd7887da1c2363c1a734d7b0f1ac
SHA512

1c03d94fed70494746aa2bdb55459a17a43b673d7f108ccb8b37478dd2e27e45703b62d4dd5162f06afdfe77ba71c739db93392bbbb2b2c6516558ee1f6c2b5f
SSDEEP

1536:uIcs6msUvrh8ErMInQ+4cw9NVWfjaRkE4LEl8B60Y2lfxxHZPE1ossZDuN:dcs6v68Erj3w9zWf+SEFuk0/pfPtsc8

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 8 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
3580	arp.exe
4044	arp.exe
1896	arp.exe
4484	arp.exe
348	arp.exe
4788	arp.exe
1460	arp.exe
3184	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1004-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/1004-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1848	1004	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 9 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	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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1004	rundll32.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 4864 wrote to memory of 1004	4864	rundll32.exe	82
PID 4864 wrote to memory of 1004	4864	rundll32.exe	82
PID 4864 wrote to memory of 1004	4864	rundll32.exe	82
PID 1004 wrote to memory of 4044	1004	rundll32.exe	83
PID 1004 wrote to memory of 4044	1004	rundll32.exe	83
PID 1004 wrote to memory of 4044	1004	rundll32.exe	83
PID 1004 wrote to memory of 1896	1004	rundll32.exe	87
PID 1004 wrote to memory of 1896	1004	rundll32.exe	87
PID 1004 wrote to memory of 1896	1004	rundll32.exe	87
PID 1004 wrote to memory of 3580	1004	rundll32.exe	88
PID 1004 wrote to memory of 3580	1004	rundll32.exe	88
PID 1004 wrote to memory of 3580	1004	rundll32.exe	88
PID 1004 wrote to memory of 3184	1004	rundll32.exe	89
PID 1004 wrote to memory of 3184	1004	rundll32.exe	89
PID 1004 wrote to memory of 3184	1004	rundll32.exe	89
PID 1004 wrote to memory of 4484	1004	rundll32.exe	90
PID 1004 wrote to memory of 4484	1004	rundll32.exe	90
PID 1004 wrote to memory of 4484	1004	rundll32.exe	90
PID 1004 wrote to memory of 1460	1004	rundll32.exe	91
PID 1004 wrote to memory of 1460	1004	rundll32.exe	91
PID 1004 wrote to memory of 1460	1004	rundll32.exe	91
PID 1004 wrote to memory of 4788	1004	rundll32.exe	92
PID 1004 wrote to memory of 4788	1004	rundll32.exe	92
PID 1004 wrote to memory of 4788	1004	rundll32.exe	92
PID 1004 wrote to memory of 348	1004	rundll32.exe	93
PID 1004 wrote to memory of 348	1004	rundll32.exe	93
PID 1004 wrote to memory of 348	1004	rundll32.exe	93

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f9a7636d26a7f815e8be066a51a3682612cdcd7887da1c2363c1a734d7b0f1ac.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4864
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f9a7636d26a7f815e8be066a51a3682612cdcd7887da1c2363c1a734d7b0f1ac.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1004
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4044
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 fc-14-22-0a-4c-cf
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1896
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 d3-12-08-09-2f-b4
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3580
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 a5-45-21-8c-d1-27
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3184
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 05-2a-40-68-71-cc
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4484
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 c4-84-ec-68-93-dc
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1460
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 0b-7a-75-6e-27-a0
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4788
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 a4-5d-e6-a2-49-aa
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:348
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1004 -s 728
    3⤵
    - Program crash
    PID:1848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1004 -ip 1004
1⤵
PID:3668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Privilege Escalation

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Defense Evasion

Credential Access

Discovery

Network Service Discovery

1

T1046

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1004-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1004-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download

Analysis

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