expiro | 6e25067589d374d2a3a5082e98f38092ddf16181edb0c9b8560510d812f2ac45

Analysis

max time kernel
150s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
05-02-2025 19:46

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General

Target

JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
Size

235KB
MD5

a31534c0f0f3d750f9f7bc41074ced27
SHA1

582121ea0269a472265eab53523b6a9ad2d0653d
SHA256

6e25067589d374d2a3a5082e98f38092ddf16181edb0c9b8560510d812f2ac45
SHA512

34eec999a908268ac761e023ebba63f0d64a9dd2cb7efff73e06ba3f33c057ab72792c651a8759a2da4e3ea19cc1400bfd1523214a9038e23b2de7608a5bb48a
SSDEEP

6144:3O8CaRVMMMMMM2MMMMMcBPxlpo9NC/3RElH8HhkRIkAiN7R+Di:3ObaRaMMMMM2MMMMMc/lpMCJ2GkRIkR

Score

10^/10

expiro backdoor credential_access discovery spyware stealer

Malware Config

Signatures

Expiro family
expiro
Expiro, m0yv
Expiro aka m0yv is a multi-functional backdoor written in C++.
backdoor expiro

Expiro payload 1 IoCs

backdoor

resource	yara_rule
behavioral2/memory/5004-2-0x0000000001000000-0x0000000001088000-memory.dmp	family_expiro1

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Drops Chrome extension 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\dlddmedljhmbgdhapibnagaanenmajcm\1.0_0\manifest.json	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe

Enumerates connected drives 3 TTPs 21 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\Y:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\G:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\L:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\S:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\T:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\U:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\V:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\X:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\E:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\R:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\H:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\J:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\M:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\N:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\P:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\Q:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\W:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\I:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\K:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\O:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened (read-only)	\??\Z:	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe

Drops file in System32 directory 27 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\SysWOW64\vssvc.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\msiexec.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\Agentservice.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\wbengine.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\tieringengineservice.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\wbem\wmiApsrv.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\alg.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\sgrmbroker.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\spectrum.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\snmptrap.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File created	\??\c:\windows\SysWOW64\msiexec.vir	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\locator.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File created	C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.vir	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\sensordataservice.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\openssh\ssh-agent.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\searchindexer.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\svchost.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\dllhost.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\lsass.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\fxssvc.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\vds.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\perceptionsimulation\perceptionsimulationservice.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\perfhost.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\Appvclient.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\diagsvcs\diagnosticshub.standardcollector.service.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\windows\SysWOW64\msdtc.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jjs.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ktab.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\orbd.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\Source Engine\OSE.EXE	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\kinit.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\tnameserv.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\unpack200.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\kinit.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\VSTO\10.0\VSTOInstaller.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jrunscript.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsimport.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaws.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\klist.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Internet Explorer\ieinstal.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javaws.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstat.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsgen.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Internet Explorer\iediagcmd.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\unpack200.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\7-Zip\Uninstall.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\orbd.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\chrome_pwa_launcher.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jar.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\excelcnv.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Internet Explorer\ielowutil.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jabswitch.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javah.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jmap.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ktab.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\IntegratedOffice.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\MavInject32.vir	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\rmid.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\setup.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\pack200.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\InspectorOfficeGadget.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javaw.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdeps.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmid.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\servertool.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\tnameserv.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java-rmi.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javacpl.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\notification_helper.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jcmd.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmiregistry.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\java.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javacpl.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX45.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	\??\c:\program files\google\chrome\Application\123.0.6312.123\elevation_service.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\keytool.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\keytool.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\unpack200.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File created	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.vir	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\microsoft.net\framework64\v3.0\wpf\presentationfontcache.exe	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.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	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	5004	JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a31534c0f0f3d750f9f7bc41074ced27.exe"
1⤵
- Drops Chrome extension
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:5004

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

Filesize
599KB

MD5
1fd5544183ad6a6a66f673fab48b9f89

SHA1
99d4d1b452bdcb85a439799718fd829bcefa054e

SHA256
2ca02f5d99852c9f2589d9a7b1d7865479803fe1ae24bfff622a7aba75552a21

SHA512
ec2eb621f7db60ef8b4c877f93b031e69fa2f1381dfb9f0ee3e6c022144d32cd8323d3b72b92b43d2d5952882e08a087fa1add78a5706a90f20024638706cb51

Download Submit
C:\Windows\SysWOW64\msiexec.vir

Filesize
234KB

MD5
f25fe349eca87d50de8c2d508345c3a4

SHA1
59e7df54d58c9af6b07374302d06afc3ca7e43ac

SHA256
949cbd0b628fbc76fcd5a04e01d412b1dc55130719576d8db67d092f35126896

SHA512
c92466ed6daa1f0c89e0455862b66dceca6fbe38c7529d14f635bb3d99a8ceb04529a74065fe1763d53825a6904ec65ed84304ef9891b47ff9a551fbad247fcb

Download Submit
memory/5004-0-0x0000000001000000-0x0000000001088000-memory.dmp

Filesize
544KB

Download
memory/5004-1-0x0000000001002000-0x0000000001003000-memory.dmp

Filesize
4KB

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memory/5004-2-0x0000000001000000-0x0000000001088000-memory.dmp

Filesize
544KB

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