expiro | c682ea24a6c0e3d2d6c9b77e57e786f31df2677bb6aa985d4c91b0f5da9afc4e

Analysis

max time kernel
149s
max time network
152s
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 19:31

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General

Target

JaffaCakes118_7b63d87a62be3038a1fad0f951fd668a.exe
Size

577KB
MD5

7b63d87a62be3038a1fad0f951fd668a
SHA1

28c0b45b950e227e21bfa60e4124070374323ffa
SHA256

c682ea24a6c0e3d2d6c9b77e57e786f31df2677bb6aa985d4c91b0f5da9afc4e
SHA512

5df051ecbecb3e71c1fba83edfaa940a74feb552e9626e2e58878ca39f98349bf874f0f33b118811929fa7154210b3589c92878cf7b31f0294d5cecf33f67b36
SSDEEP

12288:iKxOXt+isr9ecJ2UgfHYRaygxYzbSPvgIFsOKoGAvPCJN1Y:cXtLsr9ecJiae0mvBFSopCD

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/3940-2-0x0000000000400000-0x00000000005AC000-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_7b63d87a62be3038a1fad0f951fd668a.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b63d87a62be3038a1fad0f951fd668a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b63d87a62be3038a1fad0f951fd668a.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:3940

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/3940-0-0x0000000000400000-0x00000000005AC000-memory.dmp

Filesize
1.7MB

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memory/3940-1-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

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memory/3940-2-0x0000000000400000-0x00000000005AC000-memory.dmp

Filesize
1.7MB

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