expiro | d7bb75567c228e1fe5e9e256020acc9ca1863759a982d41ae3980c290524e4f6

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 07:29

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General

Target

JaffaCakes118_78706e7fb77cc7d2835b94e7e2f82310.exe
Size

528KB
MD5

78706e7fb77cc7d2835b94e7e2f82310
SHA1

6e26d65808963ff4a6a7d5c27d693320f994ec65
SHA256

d7bb75567c228e1fe5e9e256020acc9ca1863759a982d41ae3980c290524e4f6
SHA512

3b2931ed1b166d25d8d6cbcee6178bbf7c9c78d99b82083730e1610c0e36f009722baa78964e6adad2e48311d71d3ebcc2270a39e642b3fed92d607893b55a4b
SSDEEP

12288:ERjJM6FwQOnzM7zcq2hTGh/UVS8vITUEa:KjJM6qQV7Yq228VS8wYE

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/1980-2-0x0000000000400000-0x00000000005A6000-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_78706e7fb77cc7d2835b94e7e2f82310.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78706e7fb77cc7d2835b94e7e2f82310.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78706e7fb77cc7d2835b94e7e2f82310.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:1980

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/1980-0-0x0000000000400000-0x00000000005A6000-memory.dmp

Filesize
1.6MB

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memory/1980-1-0x0000000000403000-0x0000000000404000-memory.dmp

Filesize
4KB

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memory/1980-2-0x0000000000400000-0x00000000005A6000-memory.dmp

Filesize
1.6MB

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