Malware Analysis Report

2025-01-06 11:35

Sample ID 240603-e6jaaacg84
Target 9089f1c3da44396633d28e4472de726a_JaffaCakes118
SHA256 4ec82b6cc221e3c1138fe9b1b864515e82491d04a9267eaefcdba67d19d4671b
Tags
discovery evasion impact persistence
score
8/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Mobile Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
8/10

SHA256

4ec82b6cc221e3c1138fe9b1b864515e82491d04a9267eaefcdba67d19d4671b

Threat Level: Likely malicious

The file 9089f1c3da44396633d28e4472de726a_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

discovery evasion impact persistence

Checks if the Android device is rooted.

Checks memory information

Queries information about the current Wi-Fi connection

Registers a broadcast receiver at runtime (usually for listening for system events)

Requests dangerous framework permissions

Checks if the internet connection is available

Checks the presence of a debugger

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-03 04:33

Signatures

Requests dangerous framework permissions

Description Indicator Process Target
Allows an application to write to external storage. android.permission.WRITE_EXTERNAL_STORAGE N/A N/A
Allows an app to access approximate location. android.permission.ACCESS_COARSE_LOCATION N/A N/A
Allows an app to access precise location. android.permission.ACCESS_FINE_LOCATION N/A N/A
Required to be able to access the camera device. android.permission.CAMERA N/A N/A
Allows an application to initiate a phone call without going through the Dialer user interface for the user to confirm the call. android.permission.CALL_PHONE N/A N/A
Allows an application to send SMS messages. android.permission.SEND_SMS N/A N/A
Allows read only access to phone state, including the current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device. android.permission.READ_PHONE_STATE N/A N/A
Allows an application to read the user's contacts data. android.permission.READ_CONTACTS N/A N/A
Allows an application to write the user's contacts data. android.permission.WRITE_CONTACTS N/A N/A
Allows an application to record audio. android.permission.RECORD_AUDIO N/A N/A
Allows an application to request installing packages. android.permission.REQUEST_INSTALL_PACKAGES N/A N/A
Allows an app to create windows using the type LayoutParams.TYPE_APPLICATION_OVERLAY, shown on top of all other apps. android.permission.SYSTEM_ALERT_WINDOW N/A N/A
Allows an application to read from external storage. android.permission.READ_EXTERNAL_STORAGE N/A N/A
Allows an application to read or write the system settings. android.permission.WRITE_SETTINGS N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-03 04:33

Reported

2024-06-03 04:36

Platform

android-x86-arm-20240514-en

Max time kernel

16s

Max time network

130s

Command Line

com.youquanyun.llj

Signatures

Checks if the Android device is rooted.

evasion
Description Indicator Process Target
N/A /system/app/Superuser.apk N/A N/A
N/A /sbin/su N/A N/A

Checks memory information

evasion discovery
Description Indicator Process Target
File opened for read /proc/meminfo N/A N/A

Queries information about the current Wi-Fi connection

discovery
Description Indicator Process Target
Framework service call android.net.wifi.IWifiManager.getConnectionInfo N/A N/A

Registers a broadcast receiver at runtime (usually for listening for system events)

persistence
Description Indicator Process Target
Framework service call android.app.IActivityManager.registerReceiver N/A N/A

Checks if the internet connection is available

discovery
Description Indicator Process Target
Framework service call android.net.IConnectivityManager.getActiveNetworkInfo N/A N/A

Checks the presence of a debugger

evasion

Uses Crypto APIs (Might try to encrypt user data)

impact
Description Indicator Process Target
Framework API call javax.crypto.Cipher.doFinal N/A N/A

Processes

com.youquanyun.llj

/system/bin/sh -c getprop ro.board.platform

getprop ro.board.platform

/system/bin/sh -c type su

logcat -d -v threadtime

logcat -d -v threadtime

/system/bin/sh -c getprop ro.miui.ui.version.name

getprop ro.miui.ui.version.name

/system/bin/sh -c getprop ro.build.version.emui

getprop ro.build.version.emui

/system/bin/sh -c getprop ro.lenovo.series

getprop ro.lenovo.series

/system/bin/sh -c getprop ro.build.nubia.rom.name

getprop ro.build.nubia.rom.name

/system/bin/sh -c getprop ro.meizu.product.model

getprop ro.meizu.product.model

/system/bin/sh -c getprop ro.build.version.opporom

getprop ro.build.version.opporom

/system/bin/sh -c getprop ro.vivo.os.build.display.id

getprop ro.vivo.os.build.display.id

/system/bin/sh -c getprop ro.aa.romver

getprop ro.aa.romver

/system/bin/sh -c getprop ro.lewa.version

getprop ro.lewa.version

/system/bin/sh -c getprop ro.gn.gnromvernumber

getprop ro.gn.gnromvernumber

/system/bin/sh -c getprop ro.build.tyd.kbstyle_version

getprop ro.build.tyd.kbstyle_version

/system/bin/sh -c getprop ro.build.fingerprint

getprop ro.build.fingerprint

/system/bin/sh -c getprop ro.build.rom.id

getprop ro.build.rom.id

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 android.bugly.qq.com udp
CN 119.147.179.152:80 android.bugly.qq.com tcp
GB 142.250.180.14:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.178.14:443 android.apis.google.com tcp
GB 142.250.187.206:443 tcp

Files

/data/data/com.youquanyun.llj/databases/bugly_db_legu-journal

MD5 5982e6cbdac328ddd73b96af0201049e
SHA1 8a5649e5c009708ce58d632f4cdbff588a339799
SHA256 24c1b09ba2b06e824c7013d772db269eb759fc608964cc74d35c9be9a23f52d7
SHA512 e7cff6b7790b41f515849fab5b942f82f019bfc5b2e161c880ab254b41bd802b56820e2adf106dcef37dc927abd551519f92ab6fa6cffc8fa196a00a333e0727

/data/data/com.youquanyun.llj/databases/bugly_db_legu

MD5 f2b4b0190b9f384ca885f0c8c9b14700
SHA1 934ff2646757b5b6e7f20f6a0aa76c7f995d9361
SHA256 0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514
SHA512 ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

/data/data/com.youquanyun.llj/databases/bugly_db_legu-shm

MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

/data/data/com.youquanyun.llj/databases/bugly_db_legu-wal

MD5 24d361afc91030452effc908c11d51dc
SHA1 b624c0bea17342f021abf4f97651f1cbea8b40be
SHA256 aebd5562374cef8b0a51421fe75e76128c9d5e1ad6b22b00300335aa7ca1a2f5
SHA512 e4d6230e5d91a5e47014ce72404c8f2a3cfbc86de1ad0ea7f08386fd4ce5fce89aa3362979b124b0393c8241bb780fcfd800cba4a05a0cec6d9912eacabd730f