expiro | f65db9187fa179f222bc2ea08503a6a88882ef5e90fc4a87bcf66769617fd6e4

Analysis

max time kernel
92s
max time network
151s
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 19:55

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General

Target

JaffaCakes118_7b7cfb8aab49009cd07ea733b136cdd0.exe
Size

720KB
MD5

7b7cfb8aab49009cd07ea733b136cdd0
SHA1

f4a3d1e955ac9a0afb5184def78e22290f4151e2
SHA256

f65db9187fa179f222bc2ea08503a6a88882ef5e90fc4a87bcf66769617fd6e4
SHA512

c52701de9e554d27a4c0c857debad7addb78997a05a2f521166089d4fb1c874e5104b4c377eeaf6101963eb04a1e4d73d868339b874021f114d8bcbaae356fdc
SSDEEP

12288:WEAZ6IAgEOgE4BKO6TAHO0HtU2pJA/5QlyO7xYbOgKWTppMLNxgqprXtfE4:ecekO0H+2pCOTdWNpMLNxgqprJE4

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/4592-2-0x0000000000400000-0x00000000005DA000-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_7b7cfb8aab49009cd07ea733b136cdd0.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b7cfb8aab49009cd07ea733b136cdd0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b7cfb8aab49009cd07ea733b136cdd0.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4592

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/4592-0-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

Download
memory/4592-1-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download
memory/4592-2-0x0000000000400000-0x00000000005DA000-memory.dmp

Filesize
1.9MB

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