Malware Analysis Report

2024-09-09 17:48

Sample ID 240613-lk6l1stajd
Target a4e1a0a12e07b3cbb4cab9ed2ec1b1d8_JaffaCakes118
SHA256 0469094b50b53cb65a3db00332f99cad8dc7d86fe453a37f4f48807b72a41f43
Tags
discovery impact
score
6/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
6/10

SHA256

0469094b50b53cb65a3db00332f99cad8dc7d86fe453a37f4f48807b72a41f43

Threat Level: Shows suspicious behavior

The file a4e1a0a12e07b3cbb4cab9ed2ec1b1d8_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery impact

Queries information about active data network

Requests dangerous framework permissions

Domain associated with commercial stalkerware software, includes indicators from echap.eu.org

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-13 09:36

Signatures

Requests dangerous framework permissions

Description Indicator Process Target
Required to be able to access the camera device. android.permission.CAMERA N/A N/A
Allows an application to write to external storage. android.permission.WRITE_EXTERNAL_STORAGE N/A N/A
Allows an application to read from external storage. android.permission.READ_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
Allows access to the list of accounts in the Accounts Service. android.permission.GET_ACCOUNTS N/A N/A
Allows an app to access precise location. android.permission.ACCESS_FINE_LOCATION N/A N/A
Allows an app to access approximate location. android.permission.ACCESS_COARSE_LOCATION N/A N/A
Allows an application to read or write the system settings. android.permission.WRITE_SETTINGS 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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 09:36

Reported

2024-06-13 09:39

Platform

android-x86-arm-20240611.1-en

Max time kernel

34s

Max time network

134s

Command Line

com.vmall.client

Signatures

Domain associated with commercial stalkerware software, includes indicators from echap.eu.org

Description Indicator Process Target
N/A f.appjiagu.com N/A N/A

Queries information about active data network

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.vmall.client

chmod 755 /data/user/0/com.vmall.client/.jiagu/libjiagu.so

chmod 755 /data/user/0/com.vmall.client/.jiagu/libjiagu.so

/system/bin/dex2oat --instruction-set=x86 --dex-file=/data/data/com.vmall.client/.jiagu/classes.dex --dex-file=/data/data/com.vmall.client/.jiagu/classes.dex!classes2.dex --oat-file=/data/data/com.vmall.client/.jiagu/oat/x86/classes.odex --inline-max-code-units=0 --compiler-filter=speed

Network

Country Destination Domain Proto
GB 172.217.169.74:443 tcp
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 f.appjiagu.com udp
CN 180.163.249.208:80 f.appjiagu.com tcp
CN 106.63.25.33:80 f.appjiagu.com tcp
CN 180.163.249.208:80 f.appjiagu.com tcp
GB 142.250.187.238:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.238:443 android.apis.google.com tcp
CN 106.63.25.33:80 f.appjiagu.com tcp
CN 180.163.249.208:80 f.appjiagu.com tcp
CN 106.63.25.33:80 f.appjiagu.com tcp
GB 172.217.169.74:443 tcp
GB 172.217.169.74:443 tcp

Files

/data/data/com.vmall.client/.jiagu/libjiagu.so

MD5 6c9d83b90aa9c9f904d22eb9b16f8f95
SHA1 4d5e0ce3c55a22475b58a982d67ab9aa84384c40
SHA256 2432ac0b864b33cd599129578c42c43811461dbcb83e2a21301ccb8d0810c5e7
SHA512 07d16f67cefc986c0d6974e3bbc38d95b5b184520ec8f3c9ae59a2f0e76213d359b35dc507d482322d2c045ee75183def8e3d7659ff5fa78f6afff931084e90b

/data/data/com.vmall.client/.jiagu/classes.dex

MD5 e445957967ab5d558fabce455e563d7c
SHA1 b6b655ebebdb49426582ee1793eb48c81964f6a2
SHA256 348c6610439b8ad3d153f2f8fbe2680b1356812977168430f28cbcc6a84fb7d1
SHA512 9505ce5b43efeb11405b2ca2d79dd1c4a35ba1674c4039932efa4138cc9bf3a0417e769f3c92451846cb2c3cdb6d97589a986091a37514e6966954d9827b1ac1

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 09:36

Reported

2024-06-13 09:39

Platform

android-x64-20240611.1-en

Max time kernel

35s

Max time network

131s

Command Line

com.vmall.client

Signatures

Domain associated with commercial stalkerware software, includes indicators from echap.eu.org

Description Indicator Process Target
N/A f.appjiagu.com N/A N/A

Queries information about active data network

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.vmall.client

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 f.appjiagu.com udp
CN 180.163.249.208:80 f.appjiagu.com tcp
GB 172.217.169.42:443 tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 172.217.16.232:443 ssl.google-analytics.com tcp
CN 106.63.25.33:80 f.appjiagu.com tcp
CN 180.163.249.208:80 f.appjiagu.com tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 172.217.16.238:443 android.apis.google.com tcp
CN 106.63.25.33:80 f.appjiagu.com tcp
CN 180.163.249.208:80 f.appjiagu.com tcp
CN 106.63.25.33:80 f.appjiagu.com tcp
GB 142.250.187.206:443 tcp
GB 142.250.187.194:443 tcp
GB 172.217.16.228:443 tcp
GB 172.217.16.228:443 tcp
GB 142.250.179.238:443 tcp

Files

/data/data/com.vmall.client/.jiagu/libjiagu.so

MD5 6c9d83b90aa9c9f904d22eb9b16f8f95
SHA1 4d5e0ce3c55a22475b58a982d67ab9aa84384c40
SHA256 2432ac0b864b33cd599129578c42c43811461dbcb83e2a21301ccb8d0810c5e7
SHA512 07d16f67cefc986c0d6974e3bbc38d95b5b184520ec8f3c9ae59a2f0e76213d359b35dc507d482322d2c045ee75183def8e3d7659ff5fa78f6afff931084e90b

/data/data/com.vmall.client/.jiagu/classes.dex

MD5 e445957967ab5d558fabce455e563d7c
SHA1 b6b655ebebdb49426582ee1793eb48c81964f6a2
SHA256 348c6610439b8ad3d153f2f8fbe2680b1356812977168430f28cbcc6a84fb7d1
SHA512 9505ce5b43efeb11405b2ca2d79dd1c4a35ba1674c4039932efa4138cc9bf3a0417e769f3c92451846cb2c3cdb6d97589a986091a37514e6966954d9827b1ac1