renamer | bdb3f38edcee75df108d3af5a001536d3aa2e88496d623a30f8345dfcf579bd9

Analysis

max time kernel
18s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-12-2024 09:02

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General

Target

bdb3f38edcee75df108d3af5a001536d3aa2e88496d623a30f8345dfcf579bd9N.exe
Size

824KB
MD5

1c21b0c4c7a56111bdd8b85d8e265990
SHA1

475053be885e30a98a13eb655621dbce8c0bfb40
SHA256

bdb3f38edcee75df108d3af5a001536d3aa2e88496d623a30f8345dfcf579bd9
SHA512

e576dc506d9d197b3ad524288fe5baf1ec86c7f02454421041bdcf6455015e65202a77f99b2f624543419b0f700eac32a196cb9330f22522063be4d5aeb3120b
SSDEEP

12288:JJmRkqBSBNLC+EptUpQ9SeSChq3YvxFBSSRMT8PTp4ihozEx888888888888W880:k7SvzCtUpQ9WWPBSSRMTEpXNh

Score

10^/10

renamer discovery worm

Malware Config

Signatures

Detects Renamer worm. 2 IoCs

Renamer aka Grename is worm written in Delphi.

resource	yara_rule
behavioral1/memory/2340-0-0x0000000000400000-0x00000000004DB000-memory.dmp	family_renamer
behavioral1/memory/2340-2-0x0000000000400000-0x00000000004DB000-memory.dmp	family_renamer

Renamer family
renamer
Renamer, Grenam
Renamer aka Grenam is a worm written in Delphi.
worm renamer

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2544	2340	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	bdb3f38edcee75df108d3af5a001536d3aa2e88496d623a30f8345dfcf579bd9N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 2544	2340	bdb3f38edcee75df108d3af5a001536d3aa2e88496d623a30f8345dfcf579bd9N.exe	30
PID 2340 wrote to memory of 2544	2340	bdb3f38edcee75df108d3af5a001536d3aa2e88496d623a30f8345dfcf579bd9N.exe	30
PID 2340 wrote to memory of 2544	2340	bdb3f38edcee75df108d3af5a001536d3aa2e88496d623a30f8345dfcf579bd9N.exe	30
PID 2340 wrote to memory of 2544	2340	bdb3f38edcee75df108d3af5a001536d3aa2e88496d623a30f8345dfcf579bd9N.exe	30

C:\Users\Admin\AppData\Local\Temp\bdb3f38edcee75df108d3af5a001536d3aa2e88496d623a30f8345dfcf579bd9N.exe
"C:\Users\Admin\AppData\Local\Temp\bdb3f38edcee75df108d3af5a001536d3aa2e88496d623a30f8345dfcf579bd9N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2340 -s 176
  2⤵
  - Program crash
  PID:2544

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/2340-0-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/2340-2-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download