expiro | ac5f6876723f7b91f33849b49966bf750f51a27fb5f7838e25a4177ca84b927d

Analysis

max time kernel
102s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
14/04/2025, 17:42

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General

Target

JaffaCakes118_b88504e030d620f777e42f2a9380ad22.exe
Size

188KB
MD5

b88504e030d620f777e42f2a9380ad22
SHA1

6db16dc1537174b6a456708e15de256ea5e85caa
SHA256

ac5f6876723f7b91f33849b49966bf750f51a27fb5f7838e25a4177ca84b927d
SHA512

32f19b3f0d3d5cd5b67e6b8df957c715fcea11d7474b82f3a776cbf11ed2a33c293f8ae83b5523bb6777e5d31e5201d5fbd62f442acb9e39f8510f86e9ce6b8a
SSDEEP

3072:7q4QVMZ2JvwY0xc0Rv+4dDJ2pLjmMAiYp2nMwc6BZ8Ry3GCA:QVMZIwYKc0Rv+SVMDAinMv6RW

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/1192-2-0x0000000000400000-0x000000000047C000-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_b88504e030d620f777e42f2a9380ad22.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b88504e030d620f777e42f2a9380ad22.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b88504e030d620f777e42f2a9380ad22.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:1192

Network

MITRE ATT&CK Enterprise v16

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/1192-0-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/1192-1-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download
memory/1192-2-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download