expiro | 2f750678eea4b5d7af26aa95042b1f993c437f09a8aecf3c1ec965fd47217034

Analysis

max time kernel
93s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03/01/2025, 23:44

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General

Target

JaffaCakes118_7593cac1048b58bcf2261ff749c021e2.exe
Size

457KB
MD5

7593cac1048b58bcf2261ff749c021e2
SHA1

20a858302c1cb0058bc7d0553a0240b17a3f2068
SHA256

2f750678eea4b5d7af26aa95042b1f993c437f09a8aecf3c1ec965fd47217034
SHA512

cca7abb28dc6f32ab16635d116a1ebc4c1d9e4f4c6f198e7533c029a1ad71e90477f1d7ac9d1106be6305ba15a4df8969237377792512743933771c91812b0c3
SSDEEP

6144:eZiEOK99kXezLXmO3aPMV8kEHhPXkm8LBteFJM9gRY+e2at8cxY7FwWKq5XsN:e0eXXmU0MuZdkv1gJMZX8cxY7Fw/ys

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 4 IoCs

backdoor

resource	yara_rule
behavioral2/memory/2036-0-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/2036-1-0x0000000010000000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/2036-2-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/2036-3-0x0000000010000000-0x0000000010108000-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_7593cac1048b58bcf2261ff749c021e2.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7593cac1048b58bcf2261ff749c021e2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7593cac1048b58bcf2261ff749c021e2.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2036

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/2036-0-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

Download
memory/2036-1-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

Download
memory/2036-2-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

Download
memory/2036-3-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

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