expiro | 58cb536a667749b7520b3578869e61887d0aab5b2c978aeeeeb25ad88be92e1f

Analysis

max time kernel
74s
max time network
18s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
17-12-2024 08:57

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General

Target

58cb536a667749b7520b3578869e61887d0aab5b2c978aeeeeb25ad88be92e1f.exe
Size

635KB
MD5

cf4cafb8e50179b4fc61bce164e31e66
SHA1

87c67647185d4114eb4030fedc9910dba8da52f1
SHA256

58cb536a667749b7520b3578869e61887d0aab5b2c978aeeeeb25ad88be92e1f
SHA512

9d0fd9936020b67d7d3d25e5bfa063a70d882d6ddf97ff4d71d1519f7fea6944009ed2d4c0119bedb16ffc5027aaa000d2766ee7fde3abb4ec0f490823d0cf14
SSDEEP

12288:BMU7R8B7rSMrgCWW/LAaK+SeDdc8CUnQgAPp2DLtLO+MXvl8sLCJ0n53F0Kb:BJ7R8B7rSMr065ep2D5MXNLqw1xb

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/1740-2-0x0000000001000000-0x00000000011D2000-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	58cb536a667749b7520b3578869e61887d0aab5b2c978aeeeeb25ad88be92e1f.exe

C:\Users\Admin\AppData\Local\Temp\58cb536a667749b7520b3578869e61887d0aab5b2c978aeeeeb25ad88be92e1f.exe
"C:\Users\Admin\AppData\Local\Temp\58cb536a667749b7520b3578869e61887d0aab5b2c978aeeeeb25ad88be92e1f.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:1740

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/1740-0-0x0000000001000000-0x00000000011D2000-memory.dmp

Filesize
1.8MB

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memory/1740-1-0x0000000001003000-0x0000000001005000-memory.dmp

Filesize
8KB

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memory/1740-2-0x0000000001000000-0x00000000011D2000-memory.dmp

Filesize
1.8MB

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