Malware Analysis Report

2025-08-05 19:13

Sample ID 240519-eldjashd61
Target 58741a244810c113976e0e90f9ab300a_JaffaCakes118
SHA256 330513ef990a9b18685bce6adef8cf706795e6f2bb9c9a7b0329e4153e6e97a2
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

330513ef990a9b18685bce6adef8cf706795e6f2bb9c9a7b0329e4153e6e97a2

Threat Level: Likely malicious

The file 58741a244810c113976e0e90f9ab300a_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

discovery evasion impact persistence

Checks if the Android device is rooted.

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

Checks memory information

Queries information about the current Wi-Fi connection

Checks if the internet connection is available

Requests dangerous framework permissions

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-19 04:01

Signatures

Requests dangerous framework permissions

Description Indicator Process Target
Allows an application to receive SMS messages. android.permission.RECEIVE_SMS 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 write to external storage. android.permission.WRITE_EXTERNAL_STORAGE 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
Required to be able to access the camera device. android.permission.CAMERA 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 access to the list of accounts in the Accounts Service. android.permission.GET_ACCOUNTS N/A N/A
Allows an application to read the user's contacts data. android.permission.READ_CONTACTS 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 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 read SMS messages. android.permission.READ_SMS 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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-19 04:01

Reported

2024-05-19 04:04

Platform

android-x86-arm-20240514-en

Max time kernel

17s

Max time network

139s

Command Line

com.yuecai.zhrentmobilephone

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

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.yuecai.zhrentmobilephone

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

chmod 700 /data/user/0/com.yuecai.zhrentmobilephone/tx_shell/libshellx-2.8.so

getprop ro.board.platform

/system/bin/sh -c type su

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
GB 142.250.187.195:443 tcp
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 android.bugly.qq.com udp
CN 14.22.7.140:80 android.bugly.qq.com tcp
GB 142.250.180.14:443 tcp
GB 142.250.180.14:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.238:443 android.apis.google.com tcp

Files

/data/data/com.yuecai.zhrentmobilephone/databases/bugly_db_legu-journal

MD5 13eab44fb5fd21e1d381f6e43f4f88ff
SHA1 7676c56b1bc604a73be9c0ec8a69fadfdf8bba29
SHA256 4434d9909ab0a596bc1a5f32905afacc8c4493afaccee1e93e62a56c6f686ecb
SHA512 972838d817592420d163a11c4edceed5f13b8498cba9952b398d7c0e57002e6168f43e2f91a1596591b1b584d12e7b530595c84e566d5ab5c0aa9a8b6a6962b3

/data/data/com.yuecai.zhrentmobilephone/databases/bugly_db_legu

MD5 f2b4b0190b9f384ca885f0c8c9b14700
SHA1 934ff2646757b5b6e7f20f6a0aa76c7f995d9361
SHA256 0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514
SHA512 ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

/data/data/com.yuecai.zhrentmobilephone/databases/bugly_db_legu-shm

MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

/data/data/com.yuecai.zhrentmobilephone/databases/bugly_db_legu-wal

MD5 1c8aea1e5526d89d5016938d178801ba
SHA1 80484fadbcae12f2e91490dc3838588979090853
SHA256 0a6c65dd5135cbb1c4525b7b46b72fdaea2cab1a88fe4d36722cc998d410780e
SHA512 cca7bbc79efc4b6362b0b4bb647a5ab1f6765d74f5c466d98aeb5d26333e766d55697056701aaa8dab998c2b61fe367d87df49c6e9a2b7ea68decbf58b42fc78

/data/data/com.yuecai.zhrentmobilephone/tx_shell/libshellx-2.8.so

MD5 1a95078f24163493daa32ef7ac29dab6
SHA1 8e0afbe6eefc3c615641ba12a2446cc378c7719b
SHA256 1b11bdc5233ea4d757fbd138dfee122cccf2f7b4084d030e77579e6577405e7d
SHA512 c81c1a6da27c0608c0545aafa1d248c9a4798ba94f08179d232ab815477a9662d9c93cf0f53b3da5109b55849ce6001f8e9f01b68daea4d86ad3861bb64b8a9e