expiro | d99a4361da8b99ca116a70eca455bd9dccdcb3ecba94199dafb0e3844bbee42c

Analysis

max time kernel
148s
max time network
150s
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 05:28

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General

Target

JaffaCakes118_77e5c85003d7c2e39002db957d8ffff0.exe
Size

620KB
MD5

77e5c85003d7c2e39002db957d8ffff0
SHA1

e6759b20e935d962d2066fc34de866c2d9635f59
SHA256

d99a4361da8b99ca116a70eca455bd9dccdcb3ecba94199dafb0e3844bbee42c
SHA512

43b05f31cbc3533007b56425d01b3457f8d9f8b43405a0eadcbaf456dba73c6512829c9d18a572432c448bd4deb7da05525a8f29246f707874a0e808f1c6999b
SSDEEP

12288:tjHl9nkB3Rext9dUVa/tqaotJYntXmi17NP9/F9OTe:pl9nLPKVawaoPYtXm07NPpX

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/5100-2-0x0000000001000000-0x000000000125A000-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_77e5c85003d7c2e39002db957d8ffff0.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77e5c85003d7c2e39002db957d8ffff0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77e5c85003d7c2e39002db957d8ffff0.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:5100

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/5100-0-0x0000000001000000-0x000000000125A000-memory.dmp

Filesize
2.4MB

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memory/5100-1-0x0000000001001000-0x0000000001002000-memory.dmp

Filesize
4KB

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memory/5100-2-0x0000000001000000-0x000000000125A000-memory.dmp

Filesize
2.4MB

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