filecoder | 924e8a1c0d7fba2b069b5ce514c45d0835c474a4ce146263cd1d27d405904420

Analysis

max time kernel
39s
max time network
70s
platform
android_x64
resource
android-33-x64-arm64-20240624-en
resource tags

androidarch:arm64arch:x64image:android-33-x64-arm64-20240624-enlocale:en-usos:android-13-x64system
submitted
20/08/2024, 09:24

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General

Target

924e8a1c0d7fba2b069b5ce514c45d0835c474a4ce146263cd1d27d405904420.apk
Size

6.8MB
MD5

f07b8cc1e331ec181031a0d90fbffb85
SHA1

f31c67ccc0d1867db1fbc43762fcf83746a408c2
SHA256

924e8a1c0d7fba2b069b5ce514c45d0835c474a4ce146263cd1d27d405904420
SHA512

e2fdf39bdc5b3861b3185a575470e5612ec9a99047c2ef1ab499415872d007e6acf54b4e4fe155f27b905a6e8feb58bb44479b5080c5cf31266dded1541e3520
SSDEEP

196608:WqZSQeHQfzcTK77FMQ+V+Y4Bz/JdLdJ3bh3IwNdn:/ZsHK0EJEv4h/9thz7n

Score

10^/10

filecoder collection credential_access impact ransomware

Malware Config

Signatures

Filecoder.C
A ransomware family that spreads to other victims via SMS.
ransomware filecoder

Obtains sensitive information copied to the device clipboard 2 TTPs 1 IoCs

Application may abuse the framework's APIs to obtain sensitive information copied to the device clipboard.

collection credential_access impact

Clipboard Data

T1414

Transmitted Data Manipulation

T1641.001

description	ioc	Process
Framework service call	android.content.IClipboard.addPrimaryClipChangedListener	net.south.seven

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
13	pastebin.com
14	pastebin.com
36	pastebin.com

Changes the wallpaper (common with ransomware activity) 1 IoCs

ransomware

description	ioc	Process
Framework service call	android.app.IWallpaperManager.setWallpaper	net.south.seven

Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs

impact

Data Encrypted for Impact

T1471

description	ioc	Process
Framework API call	javax.crypto.Cipher.doFinal	net.south.seven

Checks CPU information 2 TTPs 1 IoCs

System Checks

T1633.001

System Information Discovery

T1426

description	ioc	Process
File opened for read	/proc/cpuinfo	net.south.seven

Checks memory information 2 TTPs 1 IoCs

System Checks

T1633.001

System Information Discovery

T1426

description	ioc	Process
File opened for read	/proc/meminfo	net.south.seven

net.south.seven
1⤵
- Obtains sensitive information copied to the device clipboard
- Changes the wallpaper (common with ransomware activity)
- Uses Crypto APIs (Might try to encrypt user data)
- Checks CPU information
- Checks memory information
PID:4332

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

MITRE ATT&CK Mobile v15

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1633

System Checks

T1633.001

Credential Access

Clipboard Data

T1414

Discovery

System Information Discovery

T1426

Lateral Movement

Collection

Clipboard Data

T1414

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

T1471

Data Manipulation

T1641

Transmitted Data Manipulation

T1641.001

Replay Monitor

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Downloads

/data/system/users/0/wallpaper_orig

Filesize
3.3MB

MD5
d3ad984e67521b89ba7c30336e7d791e

SHA1
a4ef11236b665dbac88071adbf27ddf85ce18000

SHA256
a9aa957d6cfdbb4bc6c9b8176a2322b5b57c3bd4b8b4ba136b9c20b1f68e9cb8

SHA512
b07c87ee272a148c6c5defcb835669d833579158dffb876b6e0fa3037b37ac341c3aa26fa6efb8acd209b22140a407efbdde32ae686b97d024a35e0cb98f0cae

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads