expiro | a9b061ff07b22847db3508d3cc2258cb2e9d0b2ffdc88d55306ddf6227c1a117

Analysis

max time kernel
29s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-01-2025 13:17

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General

Target

a9b061ff07b22847db3508d3cc2258cb2e9d0b2ffdc88d55306ddf6227c1a117.exe
Size

513KB
MD5

23303eb9468b638b881ef48fa8c55b59
SHA1

dcb11606f242008cd7d673cab69e58ab181a6e6d
SHA256

a9b061ff07b22847db3508d3cc2258cb2e9d0b2ffdc88d55306ddf6227c1a117
SHA512

9a43de83c4a9f9b3060552edde663131a8d6b6bb41de6b306084b5c114bc8ae7902b50077943c5d62131e4c23c54819fcc025647ab77faea98f770d1e7589127
SSDEEP

12288:vGjlzE/sYpcbLdfqgFeeIl4A/51wQYn4x2qJKde6Od6om7xKSnnVL5U1phTDYjWn:vIlzEUYqZqggdkUd8t2DpvooR

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/1716-2-0x0000000001000000-0x000000000119C000-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	a9b061ff07b22847db3508d3cc2258cb2e9d0b2ffdc88d55306ddf6227c1a117.exe

C:\Users\Admin\AppData\Local\Temp\a9b061ff07b22847db3508d3cc2258cb2e9d0b2ffdc88d55306ddf6227c1a117.exe
"C:\Users\Admin\AppData\Local\Temp\a9b061ff07b22847db3508d3cc2258cb2e9d0b2ffdc88d55306ddf6227c1a117.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:1716

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/1716-0-0x0000000001000000-0x000000000119C000-memory.dmp

Filesize
1.6MB

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memory/1716-1-0x0000000001001000-0x0000000001002000-memory.dmp

Filesize
4KB

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memory/1716-2-0x0000000001000000-0x000000000119C000-memory.dmp

Filesize
1.6MB

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