a58eb6df9eab33d850e6c28363bd1fe57fb8160ef1da3f5702b1c150d4bf701b

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/10/2024, 19:29

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General

Target

avpr.exe
Size

829KB
MD5

d437018baa4619c20f492be145a716c3
SHA1

7cebe76330f54d1c103d996227f41a8d1898b13e
SHA256

e34065e5508245dec285ffa7711083e9079bda6119e6682688b44fc9eb7e1955
SHA512

706fedfc155e910f42081023bb586e1fa5b41ab37c0f1c52461ad375b06cae9f7c6065b5e083ca098a6889dd590a883cd2bff0f6bff02335efc91c5fe1947f1c
SSDEEP

12288:JCJ0+k8KpKiq5olw/2WVg8GRpt9ijJrBn3rXGCocomgRSHsDrA:Ji0+HqKa8TtyptsjJ1n7To/D

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2084	2100	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 1 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	avpr.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	avpr.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	avpr.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	avpr.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2084	2100	avpr.exe	30
PID 2100 wrote to memory of 2084	2100	avpr.exe	30
PID 2100 wrote to memory of 2084	2100	avpr.exe	30
PID 2100 wrote to memory of 2084	2100	avpr.exe	30

C:\Users\Admin\AppData\Local\Temp\avpr.exe
"C:\Users\Admin\AppData\Local\Temp\avpr.exe"
1⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2100 -s 296
  2⤵
  - Program crash
  PID:2084

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/2100-0-0x0000000000400000-0x00000000005AD000-memory.dmp

Filesize
1.7MB

Download
memory/2100-1-0x0000000000660000-0x000000000068C000-memory.dmp

Filesize
176KB

Download
memory/2100-2-0x0000000001F10000-0x0000000001F11000-memory.dmp

Filesize
4KB

Download
memory/2100-3-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2100-4-0x00000000006B0000-0x00000000006B1000-memory.dmp

Filesize
4KB

Download
memory/2100-5-0x00000000006A0000-0x00000000006A1000-memory.dmp

Filesize
4KB

Download
memory/2100-6-0x0000000000690000-0x0000000000691000-memory.dmp

Filesize
4KB

Download
memory/2100-7-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2100-8-0x0000000000650000-0x0000000000651000-memory.dmp

Filesize
4KB

Download
memory/2100-9-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2100-10-0x0000000002070000-0x0000000002071000-memory.dmp

Filesize
4KB

Download
memory/2100-11-0x0000000001F20000-0x0000000001F21000-memory.dmp

Filesize
4KB

Download
memory/2100-12-0x0000000001F40000-0x0000000001F41000-memory.dmp

Filesize
4KB

Download
memory/2100-13-0x0000000000400000-0x00000000005AD000-memory.dmp

Filesize
1.7MB

Download
memory/2100-14-0x0000000000660000-0x000000000068C000-memory.dmp

Filesize
176KB

Download