8ddc30e457a3bd8395a7610817c993ed48a5ccb82a3e2df74fe87c2bcd1454be

Analysis

max time kernel
95s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17-08-2024 02:38

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General

Target

b15028fbd086cbc65ebef2eef3061610N.exe
Size

25KB
MD5

b15028fbd086cbc65ebef2eef3061610
SHA1

f8ab4e69df9958c3c7bd1bcd0d163d7f975b0753
SHA256

8ddc30e457a3bd8395a7610817c993ed48a5ccb82a3e2df74fe87c2bcd1454be
SHA512

936768f32b2e961b95cea4eb73fe876598d15ac92441fff68ed5e816d2010d72ff23c43d9857ce3929c37dfb81975bceb5a9c397bdfc4f4173e9dc7efe0e41a8
SSDEEP

384:ErzPL6Dk+r7+AHmXYws6Yv4F/1i9W0o4XadFRCdT9JFi:ErzLI2AjEbi8GX2FRCfu

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3516	rmass.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0009000000023489-3.dat	upx
behavioral2/memory/3516-4-0x0000000000400000-0x0000000000411000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\rmass.exe	b15028fbd086cbc65ebef2eef3061610N.exe
File created	C:\Windows\SysWOW64\rmass.exe	b15028fbd086cbc65ebef2eef3061610N.exe

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	b15028fbd086cbc65ebef2eef3061610N.exe

C:\Users\Admin\AppData\Local\Temp\b15028fbd086cbc65ebef2eef3061610N.exe
"C:\Users\Admin\AppData\Local\Temp\b15028fbd086cbc65ebef2eef3061610N.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
PID:2016
- C:\Windows\SysWOW64\rmass.exe
  "C:\Windows\SysWOW64\rmass.exe"
  2⤵
  - Executes dropped EXE
  PID:3516

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

C:\Windows\SysWOW64\rmass.exe

Filesize
22KB

MD5
6f7b48cdd6a491e5684e18061596a24d

SHA1
051551b70f33f37fb8ee33049bd83a229e7d0bf3

SHA256
6390a6adcff96401c8d04f500935c82418fd482b833b04886a4e721fd6c120c4

SHA512
1f78b2958361df7f4eed631a05ffa0ca951961654cb5dca17af196ff1e3a32377a438db3732f30a29092a37688310e64f993e3dde9749094c557bbe5fb14eaa7

Download Submit
memory/2016-0-0x00000000773E2000-0x00000000773E3000-memory.dmp

Filesize
4KB

Download
memory/2016-5-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3516-4-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download