expiro | 1ca496af6157190e90f261143e9fc7302d43a53b3f8153d8a4cac3df5e0f254a

Analysis

max time kernel
93s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2025 06:44

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General

Target

JaffaCakes118_783e691ecd6b525725d30738976c8c9d.exe
Size

792KB
MD5

783e691ecd6b525725d30738976c8c9d
SHA1

3ef4b487d4e99a873a6ec3f20a4a7c6b863d56b7
SHA256

1ca496af6157190e90f261143e9fc7302d43a53b3f8153d8a4cac3df5e0f254a
SHA512

59cce105f39bd4831674b96fd6606fd01af410e276d48ec48db8ebd46c24774df9f0890cc644eef7921b6a3f723a03d863d3a9300209ec2f21678238d42bcd02
SSDEEP

12288:Pz55OFAhJs238CxNQp+PjhbfHfJ8xzJxEhNZafCrx8lWSd0TW:PTNsw8CnbjBHfSxIhnaUy

Score

10^/10

expiro backdoor discovery

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/1544-2-0x0000000000400000-0x00000000005E3000-memory.dmp	family_expiro1

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_783e691ecd6b525725d30738976c8c9d.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1544	JaffaCakes118_783e691ecd6b525725d30738976c8c9d.exe
1544	JaffaCakes118_783e691ecd6b525725d30738976c8c9d.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_783e691ecd6b525725d30738976c8c9d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_783e691ecd6b525725d30738976c8c9d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:1544

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

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Downloads

memory/1544-0-0x0000000000400000-0x00000000005E3000-memory.dmp

Filesize
1.9MB

Download
memory/1544-1-0x0000000000413000-0x0000000000414000-memory.dmp

Filesize
4KB

Download
memory/1544-2-0x0000000000400000-0x00000000005E3000-memory.dmp

Filesize
1.9MB

Download