f9a7636d26a7f815e8be066a51a3682612cdcd7887da1c2363c1a734d7b0f1ac

Analysis

max time kernel
119s
max time network
125s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
18-02-2025 08:11

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General

Target

f9a7636d26a7f815e8be066a51a3682612cdcd7887da1c2363c1a734d7b0f1ac.dll
Size

80KB
MD5

7b0d572ae529ebe826c10d93d3176ff9
SHA1

872d3e48ea0e4507d33bbd529830dee8cb811d32
SHA256

f9a7636d26a7f815e8be066a51a3682612cdcd7887da1c2363c1a734d7b0f1ac
SHA512

1c03d94fed70494746aa2bdb55459a17a43b673d7f108ccb8b37478dd2e27e45703b62d4dd5162f06afdfe77ba71c739db93392bbbb2b2c6516558ee1f6c2b5f
SSDEEP

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

Score

6^/10

discovery upx

Malware Config

Signatures

Network Service Discovery 1 TTPs 6 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
2796	arp.exe
1508	arp.exe
3048	arp.exe
2812	arp.exe
2136	arp.exe
2936	arp.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2940-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2940-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2940-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2940-10-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2132	2940	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 6 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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2940	rundll32.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 2732 wrote to memory of 2940	2732	rundll32.exe	30
PID 2732 wrote to memory of 2940	2732	rundll32.exe	30
PID 2732 wrote to memory of 2940	2732	rundll32.exe	30
PID 2732 wrote to memory of 2940	2732	rundll32.exe	30
PID 2732 wrote to memory of 2940	2732	rundll32.exe	30
PID 2732 wrote to memory of 2940	2732	rundll32.exe	30
PID 2732 wrote to memory of 2940	2732	rundll32.exe	30
PID 2940 wrote to memory of 2132	2940	rundll32.exe	31
PID 2940 wrote to memory of 2132	2940	rundll32.exe	31
PID 2940 wrote to memory of 2132	2940	rundll32.exe	31
PID 2940 wrote to memory of 2132	2940	rundll32.exe	31
PID 2940 wrote to memory of 2796	2940	rundll32.exe	32
PID 2940 wrote to memory of 2796	2940	rundll32.exe	32
PID 2940 wrote to memory of 2796	2940	rundll32.exe	32
PID 2940 wrote to memory of 2796	2940	rundll32.exe	32
PID 2940 wrote to memory of 1508	2940	rundll32.exe	34
PID 2940 wrote to memory of 1508	2940	rundll32.exe	34
PID 2940 wrote to memory of 1508	2940	rundll32.exe	34
PID 2940 wrote to memory of 1508	2940	rundll32.exe	34
PID 2940 wrote to memory of 3048	2940	rundll32.exe	35
PID 2940 wrote to memory of 3048	2940	rundll32.exe	35
PID 2940 wrote to memory of 3048	2940	rundll32.exe	35
PID 2940 wrote to memory of 3048	2940	rundll32.exe	35
PID 2940 wrote to memory of 2812	2940	rundll32.exe	36
PID 2940 wrote to memory of 2812	2940	rundll32.exe	36
PID 2940 wrote to memory of 2812	2940	rundll32.exe	36
PID 2940 wrote to memory of 2812	2940	rundll32.exe	36
PID 2940 wrote to memory of 2936	2940	rundll32.exe	37
PID 2940 wrote to memory of 2936	2940	rundll32.exe	37
PID 2940 wrote to memory of 2936	2940	rundll32.exe	37
PID 2940 wrote to memory of 2936	2940	rundll32.exe	37

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f9a7636d26a7f815e8be066a51a3682612cdcd7887da1c2363c1a734d7b0f1ac.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2732
- 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:2940
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2940 -s 248
    3⤵
    - Program crash
    PID:2132
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2796
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 7b-07-d2-92-5a-5e
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1508
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 57-02-81-46-e8-12
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3048
- - C:\Windows\SysWOW64\arp.exe
    arp -s 154.61.71.51 f6-aa-fb-08-8e-7c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2812
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 7a-e6-a4-9b-6a-39
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2936
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 78-fd-04-b9-ba-60
    3⤵
    - Network Service Discovery
    PID:2136

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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/2940-3-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2940-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2940-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2940-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2940-10-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download