expiro | a0fda440bdb738ad31df32b4ec82ff588b545378a59131ea0b533c89dd11a0a4

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-01-2025 03:17

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General

Target

JaffaCakes118_69e88f109ae5a31aa838b84c2bdbc870.exe
Size

898KB
MD5

69e88f109ae5a31aa838b84c2bdbc870
SHA1

c2c684251a11e9e5a2bf07e9e19eb723a0141ddb
SHA256

a0fda440bdb738ad31df32b4ec82ff588b545378a59131ea0b533c89dd11a0a4
SHA512

e628c16ed18bd7d8d7130675744fb72c1deb0c497c380f84000151fc455e001bd31ddd5c3bb0521f1b0c34d107179072a41bf0a4b58b6ac3b17c9bf2c7b79e73
SSDEEP

24576:sRimzIbwuLL7Hs20f3aP3qPh/qYXAjIUMI:sRiT8uLnM20fqvqhqFjIUM

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/2280-3-0x0000000000400000-0x00000000006AE000-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_69e88f109ae5a31aa838b84c2bdbc870.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2280	JaffaCakes118_69e88f109ae5a31aa838b84c2bdbc870.exe
2280	JaffaCakes118_69e88f109ae5a31aa838b84c2bdbc870.exe
2280	JaffaCakes118_69e88f109ae5a31aa838b84c2bdbc870.exe
2280	JaffaCakes118_69e88f109ae5a31aa838b84c2bdbc870.exe
2280	JaffaCakes118_69e88f109ae5a31aa838b84c2bdbc870.exe
2280	JaffaCakes118_69e88f109ae5a31aa838b84c2bdbc870.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69e88f109ae5a31aa838b84c2bdbc870.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69e88f109ae5a31aa838b84c2bdbc870.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2280

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/2280-0-0x0000000000400000-0x00000000006AE000-memory.dmp

Filesize
2.7MB

Download
memory/2280-1-0x0000000000412000-0x0000000000414000-memory.dmp

Filesize
8KB

Download
memory/2280-3-0x0000000000400000-0x00000000006AE000-memory.dmp

Filesize
2.7MB

Download