expiro | 7927fcd364cfa957fd28f76db54c61cb4d55e0edb592e26d54358f0b93efa0c2

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-01-2025 16:00

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General

Target

JaffaCakes118_6dc83d2781aa4ac66b74b7a7df51fd50.exe
Size

528KB
MD5

6dc83d2781aa4ac66b74b7a7df51fd50
SHA1

48e23c4f44a6b5ad7fd89c74539e0aff7cf36afe
SHA256

7927fcd364cfa957fd28f76db54c61cb4d55e0edb592e26d54358f0b93efa0c2
SHA512

9ab2313f53e90e01c65e8ec38e6ff3ed35fd8bc6ea1bc7f4444eaad0ada597d77b00b3a430849ae63e4ed6cd23bf918a35516e2a0c2fcd4988cefdc431aa0cee
SSDEEP

12288:9R1FM9u9oODhpgMalHXf3MKL7qc+lKkw0LGIaPX/cesLUHX+A:jwwoEhWHP8KL7qccKk1LG7PvxswHX

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/2024-2-0x0000000000400000-0x00000000005A6000-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_6dc83d2781aa4ac66b74b7a7df51fd50.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6dc83d2781aa4ac66b74b7a7df51fd50.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6dc83d2781aa4ac66b74b7a7df51fd50.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2024

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/2024-0-0x0000000000400000-0x00000000005A6000-memory.dmp

Filesize
1.6MB

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memory/2024-1-0x0000000000403000-0x0000000000404000-memory.dmp

Filesize
4KB

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memory/2024-2-0x0000000000400000-0x00000000005A6000-memory.dmp

Filesize
1.6MB

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