bc3bf659f5119b5df317fa0df5a35bd181f197d308ba942381882e445124e14e

Analysis

max time kernel
90s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/09/2024, 01:30

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General

Target

bc3bf659f5119b5df317fa0df5a35bd181f197d308ba942381882e445124e14e.exe
Size

24KB
MD5

23669bf335b4a38a91adb7dbe9ab4c79
SHA1

aa9403d12c1e5630d47cfcd9859122aca027a0d6
SHA256

bc3bf659f5119b5df317fa0df5a35bd181f197d308ba942381882e445124e14e
SHA512

87722ae5869d08cb24d793756f8dd310c024d7127ba625c81aa1ae7766158286db3a2d92a8beceb1bb8657c7ac43494c42646bf14e7c2212fb6b21d94a45c9a9
SSDEEP

384:ErzPTRakFXfEln49mxSZHrXnKf98BLVa5L0vMtFob1OKrBGgVuaRG6Df+1:ErzTlXfKc4EHrXI98BA0v2a5YgVuUk

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3364	rmass.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\rmass.exe	bc3bf659f5119b5df317fa0df5a35bd181f197d308ba942381882e445124e14e.exe
File created	C:\Windows\SysWOW64\rmass.exe	bc3bf659f5119b5df317fa0df5a35bd181f197d308ba942381882e445124e14e.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3364-4-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral2/files/0x0008000000023486-3.dat	upx

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	bc3bf659f5119b5df317fa0df5a35bd181f197d308ba942381882e445124e14e.exe

C:\Users\Admin\AppData\Local\Temp\bc3bf659f5119b5df317fa0df5a35bd181f197d308ba942381882e445124e14e.exe
"C:\Users\Admin\AppData\Local\Temp\bc3bf659f5119b5df317fa0df5a35bd181f197d308ba942381882e445124e14e.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
PID:4260
- C:\Windows\SysWOW64\rmass.exe
  "C:\Windows\SysWOW64\rmass.exe"
  2⤵
  - Executes dropped EXE
  PID:3364

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
21KB

MD5
161ac62a9641757f3020c1db502808de

SHA1
7f8eddbee702013c93a5b0a98943cbf0f06cce13

SHA256
688fa98224e168cae037365f5be330472d39cfa4283b7b3c399bc0c7a36b3e7d

SHA512
43feb69f68d958aa30a50e85feefef32111281c388c6a913ccf1b1ff93dd8345fbbf727bff0f154682249ab50b7cde1db798a34dd0bd0674ca8498c55016b5a5

Download Submit
memory/3364-4-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/3364-6-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/4260-0-0x0000000077D42000-0x0000000077D43000-memory.dmp

Filesize
4KB

Download
memory/4260-5-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download