renamer | 8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24

General

Target

8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
Size

824KB
MD5

64793664ce95f85dea89e0384678478e
SHA1

2ed98bc157e8eee33fca1e522a7af94e51cf554d
SHA256

8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24
SHA512

7dd93b22d4449af58cd9631bf29c35042da4f00756c8933cd6c416269bf5aaec5ef880692212858226b0e027d9f8c3423b9d0ebca76eda08c9a2e04b2a32b1ae
SSDEEP

12288:wwCBtLC+EptUpQ9SeSChq3YvxFBSSRMT8PTp4AhozEn888888888888W8888888J:gNzCtUpQ9WWPBSSRMTEptNT

Score

10^/10

renamer discovery worm

Malware Config

Signatures

Detects Renamer worm. 3 IoCs

Renamer aka Grename is worm written in Delphi.

Processes:

resource	yara_rule
behavioral2/memory/4608-0-0x0000000000400000-0x00000000004DB000-memory.dmp	family_renamer
C:\Program Files\7-Zip\7z.exe	family_renamer
behavioral2/memory/4608-275-0x0000000000400000-0x00000000004DB000-memory.dmp	family_renamer

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

Drops startup file 1 IoCs

Processes:

8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Paint.lnk	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe

Drops autorun.inf file 1 TTPs 2 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

Processes:

8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe

description	ioc	process
File opened for modification	C:\autorun.inf	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	F:\autorun.inf	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe

Drops file in Program Files directory 64 IoCs

Processes:

8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe

description	ioc	process
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeC2RClient.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Java\jdk-1.8\bin\idlj.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-001F-040C-1000-0000000FF1CE}\RCXA318.tmp	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Windows NT\Accessories\wordpad.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\vOfficeC2RClient.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\VSTO\10.0\VSTOInstaller.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\RCXA249.tmp	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Windows Security\BrowserCore\BrowserCore.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Java\jdk-1.8\bin\javapackager.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vuninstall.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\RCXA39A.tmp	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\en-US\TabTip.exe.mui	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Java\jdk-1.8\bin\vjconsole.ico	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Java\jre-1.8\bin\jabswitch.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\vappvcleaner.ico	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\MSInfo\uk-UA\msinfo32.exe.mui	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Internet Explorer\iexplore.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\EQUATION\eqnedt32.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\7-Zip\7z.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\InputPersonalization.exe.mui	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\MSInfo\ja-JP\msinfo32.exe.mui	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Java\jdk-1.8\bin\vjdeps.ico	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Source Engine\vOSE.ico	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\vjar.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdeps.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\vSmartTagInstall.ico	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-001F-040C-1000-0000000FF1CE}\misc.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Windows Defender\ja-JP\OfflineScannerShell.exe.mui	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Microsoft Office\Office16\vOSPPREARM.ico	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\InputPersonalization.exe.mui	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\RCXA1BA.tmp	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jconsole.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\vjdb.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jhat.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\7-Zip\RCX9FEB.tmp	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\MavInject32.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\setup.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\vcreatedump.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\RCXA10C.tmp	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\vjinfo.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\vFLTLDR.ico	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\7-Zip\v7zG.ico	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeClickToRun.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\java-rmi.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Java\jdk-1.8\bin\vjavah.ico	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Microsoft Office\Office16\vOSPPREARM.EXE	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\vjconsole.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-006E-0409-1000-0000000FF1CE}\vmisc.ico	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\chrome.exe.sig	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\vchrmstp.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\vsetup.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\7-Zip\vUninstall.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\en-US\InputPersonalization.exe.mui	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\MSInfo\fr-FR\msinfo32.exe.mui	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\Source Engine\vOSE.EXE	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\vchrome.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
File opened for modification	C:\Program Files\Internet Explorer\uk-UA\ieinstal.exe.mui	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe

Drops file in Windows directory 1 IoCs

Processes:

8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe

description ioc process

File opened for modification C:\Windows\bfsvc.exe 8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Windows\bfsvc.exe	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.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

Processes:

8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe

C:\Users\Admin\AppData\Local\Temp\8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe
"C:\Users\Admin\AppData\Local\Temp\8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24.exe"
1⤵
- Drops startup file
- Drops autorun.inf file
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

1

T1091

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Replication Through Removable Media

1

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files\7-Zip\7z.exe

Filesize
824KB

MD5
64793664ce95f85dea89e0384678478e

SHA1
2ed98bc157e8eee33fca1e522a7af94e51cf554d

SHA256
8e3da3c858b81065027892fde89dbcbae0b14f2bf8cc974c603a26554fb3ff24

SHA512
7dd93b22d4449af58cd9631bf29c35042da4f00756c8933cd6c416269bf5aaec5ef880692212858226b0e027d9f8c3423b9d0ebca76eda08c9a2e04b2a32b1ae

Download Submit
C:\Program Files\Java\jdk-1.8\bin\vjavaws.ico

Filesize
4KB

MD5
38b41d03e9dfcbbd08210c5f0b50ba71

SHA1
2fbfde75ce9fe8423d8e7720bf7408cedcb57a70

SHA256
611f2cb2e03bd8dbcb584cd0a1c48accfba072dd3fc4e6d3144e2062553637f5

SHA512
ec97556b6ff6023d9e6302ba586ef27b1b54fbf7e8ac04ff318aa4694f13ad343049210ef17b7b603963984c1340589665d67d9c65fec0f91053ff43b1401ba9

Download Submit
C:\Program Files\Microsoft Office 15\ClientX64\vIntegratedOffice.ico

Filesize
4KB

MD5
3ea9bcbc01e1a652de5a6fc291a66d1a

SHA1
aee490d53ee201879dff37503a0796c77642a792

SHA256
a058bfd185fe714927e15642004866449bce425d34292a08af56d66cf03ebe6c

SHA512
7c740132f026341770b6a20575786da581d8a31850d0d680978a00cc4dfca1e848ef9cdc32e51bae680ea13f6cc0d7324c38765cb4e26dcb2e423aced7da0501

Download Submit
C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-001F-0C0A-1000-0000000FF1CE}\vmisc.ico

Filesize
4KB

MD5
fc27f73816c9f640d800cdc1c9294751

SHA1
e6c3d8835d1de4e9606e5588e741cd1be27398f6

SHA256
3cc5043caa157e5f9b1870527b8c323850bdae1e58d6760e4e895d2ab8a35a05

SHA512
9e36b96acc97bc7cd45e67a47f1ae7ab7d3818cc2fdaad147524ce9e4baedfaac9cd012923ec65db763bfd850c65b497376bb0694508bee59747f97bf1591fd4

Download Submit
F:\autorun.inf

Filesize
102B

MD5
5513829683bff23161ca7d8595c25c72

SHA1
9961b65bbd3bac109dddd3a161fc30650e8a7096

SHA256
94e323bd9071db7369ade16f45454e7a0dbfb6a39efddc1234c4719d1f7ee4c2

SHA512
308c84446106cda0a71e37b0de46aaf4b7361f9ddcc3c4c29f8e87da8acb606525dce8a42caf9d74e708c56b31c524f9535a2f5f4757c6c357401da1c495ddb6

Download Submit
memory/4608-0-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/4608-1-0x00000000024D0000-0x00000000024D1000-memory.dmp

Filesize
4KB

Download
memory/4608-275-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/4608-277-0x00000000024D0000-0x00000000024D1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads