expiro | 5f6fa9f99add355f6d57f73aed48fdaa1a5f36f134d5aabae8f68b5347b2bcaa

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/01/2025, 15:45

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General

Target

JaffaCakes118_6db46da877ebc2c737a9e8fb5395df71.exe
Size

532KB
MD5

6db46da877ebc2c737a9e8fb5395df71
SHA1

38cec4a5592517932579c8fd0b7d8694011fa73d
SHA256

5f6fa9f99add355f6d57f73aed48fdaa1a5f36f134d5aabae8f68b5347b2bcaa
SHA512

8f3a1bd022e8076363070ac20da19ebb10e6fcdfeee1450270b9554cb6207757692e1e8acba2e52c46a0d2b3d6daf65cddb84af2b3e9325b6cdb205b052ee854
SSDEEP

12288:CRSV/xrYdDDEmLkx5ToYa+wk9zgNFwrNeFxEiX+vYgYlBK:UPXO51Yk9zgNFAcLX+vC

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 2 IoCs

backdoor

resource	yara_rule
behavioral1/memory/3064-0-0x0000000000400000-0x00000000005AE000-memory.dmp	family_expiro1
behavioral1/memory/3064-2-0x0000000000400000-0x00000000005AE000-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_6db46da877ebc2c737a9e8fb5395df71.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6db46da877ebc2c737a9e8fb5395df71.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6db46da877ebc2c737a9e8fb5395df71.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:3064

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

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Downloads

memory/3064-0-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

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memory/3064-1-0x0000000000403000-0x0000000000404000-memory.dmp

Filesize
4KB

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memory/3064-2-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

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