expiro | 67bdfe40f59a11ea4a34772c9d20770146cbf490bf85d1834ea796161b99caa3

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/12/2024, 19:37

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General

Target

67bdfe40f59a11ea4a34772c9d20770146cbf490bf85d1834ea796161b99caa3N.exe
Size

976KB
MD5

6a0704d230132eebf6f1972640fa1fa0
SHA1

3be650632e20cf92040808d47a90216817e498f0
SHA256

67bdfe40f59a11ea4a34772c9d20770146cbf490bf85d1834ea796161b99caa3
SHA512

3567d2585166efaa4061ef8f69f23c680f7eb3db314d02a6511724103f0465c4d4feb856668b59b4324de91533db2f5fdbacf743273ff203a0ee663195278be3
SSDEEP

24576:oNai6HiLHgZpJEfpLGUEWIGOdIdGaKCFc+CopwD3H3UnvHUH7rQ:YkHiLHkJEfpLGUEWIjdIdSIc+P0XUv0

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
behavioral1/memory/2528-2-0x0000000030000000-0x00000000302B7000-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	67bdfe40f59a11ea4a34772c9d20770146cbf490bf85d1834ea796161b99caa3N.exe

C:\Users\Admin\AppData\Local\Temp\67bdfe40f59a11ea4a34772c9d20770146cbf490bf85d1834ea796161b99caa3N.exe
"C:\Users\Admin\AppData\Local\Temp\67bdfe40f59a11ea4a34772c9d20770146cbf490bf85d1834ea796161b99caa3N.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2528

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/2528-0-0x0000000030000000-0x00000000302B7000-memory.dmp

Filesize
2.7MB

Download
memory/2528-1-0x0000000030032000-0x0000000030033000-memory.dmp

Filesize
4KB

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memory/2528-2-0x0000000030000000-0x00000000302B7000-memory.dmp

Filesize
2.7MB

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