Malware Analysis Report

2024-09-09 13:24

Sample ID 240618-lcyw7s1flj
Target bb0bc84746876b6fe85d2020570d002c_JaffaCakes118
SHA256 ac13113ceb4091d4e776cc387aebe24b2cad0c81fda555842bf5d5be9c125968
Tags
execution persistence banker collection credential_access discovery evasion impact stealth trojan
score
8/10

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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
8/10

SHA256

ac13113ceb4091d4e776cc387aebe24b2cad0c81fda555842bf5d5be9c125968

Threat Level: Likely malicious

The file bb0bc84746876b6fe85d2020570d002c_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

execution persistence banker collection credential_access discovery evasion impact stealth trojan

Removes its main activity from the application launcher

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)

Loads dropped Dex/Jar

Queries account information for other applications stored on the device

Obtains sensitive information copied to the device clipboard

Declares services with permission to bind to the system

Reads information about phone network operator.

Requests dangerous framework permissions

Queries the mobile country code (MCC)

Queries information about active data network

Queries the unique device ID (IMEI, MEID, IMSI)

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

Uses Crypto APIs (Might try to encrypt user data)

Schedules tasks to execute at a specified time

Checks memory information

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-18 09:23

Signatures

Declares services with permission to bind to the system

Description Indicator Process Target
Required by accessibility services to bind with the system. Allows apps to access accessibility features. android.permission.BIND_ACCESSIBILITY_SERVICE N/A N/A

Requests dangerous framework permissions

Description Indicator Process Target
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 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
Allows access to the list of accounts in the Accounts Service. android.permission.GET_ACCOUNTS N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-18 09:23

Reported

2024-06-18 09:27

Platform

android-x86-arm-20240611.1-en

Max time kernel

179s

Max time network

159s

Command Line

com.ymobi.znqanwd.koufpibtwffzkh

Signatures

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

Schedules tasks to execute at a specified time

execution persistence
Description Indicator Process Target
Framework service call android.app.job.IJobScheduler.schedule N/A N/A
Framework service call android.app.job.IJobScheduler.schedule N/A N/A

Processes

com.ymobi.znqanwd.koufpibtwffzkh

com.ymobi.znqanwd.koufpibtwffzkh:RemoteProcess

com.ymobi.znqanwd.koufpibtwffzkh:guard

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 216.58.201.110:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 172.217.16.238:443 android.apis.google.com tcp

Files

/data/data/com.ymobi.znqanwd.koufpibtwffzkh/app_tfile/fields.jar

MD5 cceb8db3b057d24673d49eda229e9892
SHA1 b18f6353b2156410249079a3b7b86ef3a530e8ee
SHA256 e900cb4c3fe9d8f45196a7457e9645c65b0f3cde820f4161950252cff67a4d97
SHA512 4a42cde3165a706e823caa1362001ed8aa647caf22325a4f2554c64fc4ebcd79afe44fe5eab5474221806f26e7aca9d2901026de6e597ef62fe867f123e4bd57

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-18 09:23

Reported

2024-06-18 09:27

Platform

android-x64-20240611.1-en

Max time kernel

179s

Max time network

181s

Command Line

com.ymobi.znqanwd.koufpibtwffzkh

Signatures

Removes its main activity from the application launcher

stealth trojan evasion
Description Indicator Process Target
N/A N/A N/A N/A

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.ymobi.znqanwd.koufpibtwffzkh/app_tfile/fields.jar N/A N/A

Obtains sensitive information copied to the device clipboard

collection credential_access impact
Description Indicator Process Target
Framework service call android.content.IClipboard.addPrimaryClipChangedListener N/A N/A

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)

banker discovery

Queries account information for other applications stored on the device

collection
Description Indicator Process Target
Framework service call android.accounts.IAccountManager.getAccountsAsUser 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

Queries the mobile country code (MCC)

discovery
Description Indicator Process Target
Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone N/A N/A

Queries the unique device ID (IMEI, MEID, IMSI)

discovery

Reads information about phone network operator.

discovery

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

Schedules tasks to execute at a specified time

execution persistence
Description Indicator Process Target
Framework service call android.app.job.IJobScheduler.schedule N/A N/A
Framework service call android.app.job.IJobScheduler.schedule 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

Checks memory information

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

Processes

com.ymobi.znqanwd.koufpibtwffzkh

com.ymobi.znqanwd.koufpibtwffzkh:RemoteProcess

com.ymobi.znqanwd.koufpibtwffzkh:guard

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 172.217.16.234:443 tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 216.58.204.72:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.179.238:443 android.apis.google.com tcp
GB 216.58.204.78:443 tcp
US 1.1.1.1:53 api.adsnative123.com udp
GB 142.250.178.14:443 tcp
GB 142.250.187.226:443 tcp
GB 142.250.179.228:443 tcp
GB 142.250.179.228:443 tcp

Files

/data/data/com.ymobi.znqanwd.koufpibtwffzkh/app_tfile/fields.jar

MD5 cceb8db3b057d24673d49eda229e9892
SHA1 b18f6353b2156410249079a3b7b86ef3a530e8ee
SHA256 e900cb4c3fe9d8f45196a7457e9645c65b0f3cde820f4161950252cff67a4d97
SHA512 4a42cde3165a706e823caa1362001ed8aa647caf22325a4f2554c64fc4ebcd79afe44fe5eab5474221806f26e7aca9d2901026de6e597ef62fe867f123e4bd57

/data/user/0/com.ymobi.znqanwd.koufpibtwffzkh/app_tfile/fields.jar

MD5 73b11c4c10150bbd4f29ad012dc11dde
SHA1 65c83ad32c29f9811c32eda75d7fcdc92ef42dda
SHA256 52132037e9b950a9cb48d6374ee2c6747a6bfe776e13a726395771f1b40ee9da
SHA512 3e53b1ee22a00e60896da86d2695195e0965c93d190c4d1c0dba2eb5c611d670ee7693a9f8756858255e2b170cb82a753719dd4d6a827af437309b7a1dcc6f01

/data/data/com.ymobi.znqanwd.koufpibtwffzkh/databases/tbcom.ymobi.znqanwd.koufpibtwffzkh-journal

MD5 6108d51c5876888b572ac176df022885
SHA1 0d3003eb3a94747e119f9c49f8970abbba65e822
SHA256 255d49a2e0d0ddd692cd0c6b286a6219b056c003872f33f6a29161e3be1e6b97
SHA512 cbb23e69afbc6858846d24749a73005117fcbc3721b841c39e2032a0ccad462cb7cb99327ab4e69561380e818ec7620a2e2a7b4a18581f3d224b33563f13f830

/data/data/com.ymobi.znqanwd.koufpibtwffzkh/databases/tbcom.ymobi.znqanwd.koufpibtwffzkh

MD5 ae8aa93151da27ce1348c21d6ea98a45
SHA1 d187ce29f387717ea0c7d2919a77945a6f04a954
SHA256 b5023c1c2354845e52c945166be1111d7565a000e57ea18d8ce2943c73580e81
SHA512 7bc212292c6dd5192e2d714d1e06c3109f133bf0f5bddb4dd4113a4b9ab3a8db3ba7e1cab4a7da44724361b8d7d53cdde3d50506cf7264fb00d7b4521014c85a

/data/data/com.ymobi.znqanwd.koufpibtwffzkh/databases/tbcom.ymobi.znqanwd.koufpibtwffzkh-journal

MD5 2b9b43712c1f5c25a6926730efd7cc1b
SHA1 8fa24ace3192ebbfe91dfdfedfc38b4eac70a939
SHA256 3570fb547908737a513e8b0e491932391e0a4d74e0d0def8947374c86ca94abb
SHA512 df4b117113e4e32d11779c662fa06f94fd352a00d501599033cc64cacd665d2d78ca3f72fbc6aa118d612603ff89e237ff937d9ad854b8b4c0ae54580721865b

/data/data/com.ymobi.znqanwd.koufpibtwffzkh/databases/tbcom.ymobi.znqanwd.koufpibtwffzkh-journal

MD5 54e4eb995220f14ebd7d233329f827e0
SHA1 abf39c045f7c8a5ac8a54508d60108c3349edd41
SHA256 72c5510f4c89013f13d1104dc4c37795dd540aed39bf95bfc19740710b937b8c
SHA512 0c989d52bb54fb7ed766464ef637c145f599249b703df343af4c312739308b2acfb238bd90c8a11c31f6abfca4908cbfccba714cbc3f212bd685dcb9d379194f

/storage/emulated/0/Download/sdsid

MD5 b8c37e33defde51cf91e1e03e51657da
SHA1 dd01903921ea24941c26a48f2cec24e0bb0e8cc7
SHA256 fe675fe7aaee830b6fed09b64e034f84dcbdaeb429d9cccd4ebb90e15af8dd71
SHA512 e3d0e2ef3cab0dab2c12f297e3bc618f6b976aced29b3a301828c6f9f1e1aabbe6dab06e1f899c9c2ae2ca86caa330115218817f4ce36d333733cb2b4c7afde7

/data/data/com.ymobi.znqanwd.koufpibtwffzkh/app_tfile/oat/fields.jar.cur.prof

MD5 6de41202d76cfb91657a014430e7f33d
SHA1 1c066a98ee1dae3493881522b42a6978ef72ffee
SHA256 51491488aa5999f64c4d74c50676559497e9890b2a3978cdc8f07dc782e945ec
SHA512 765ef4f4ca7a832af8677b8cb38b705a5cf809b6d321f7d86bcb03471d5e55d8c9b8dc04dbad9f89b10febd5e87b29d29e1bd36fa91259ba00ea863ad1225236

Analysis: behavioral3

Detonation Overview

Submitted

2024-06-18 09:23

Reported

2024-06-18 09:27

Platform

android-x64-arm64-20240611.1-en

Max time kernel

178s

Max time network

132s

Command Line

com.ymobi.znqanwd.koufpibtwffzkh

Signatures

Removes its main activity from the application launcher

stealth trojan evasion
Description Indicator Process Target
N/A N/A N/A N/A

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.ymobi.znqanwd.koufpibtwffzkh/app_tfile/fields.jar N/A N/A

Obtains sensitive information copied to the device clipboard

collection credential_access impact
Description Indicator Process Target
Framework service call android.content.IClipboard.addPrimaryClipChangedListener N/A N/A

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)

banker discovery

Queries account information for other applications stored on the device

collection
Description Indicator Process Target
Framework service call android.accounts.IAccountManager.getAccountsAsUser 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

Reads information about phone network operator.

discovery

Schedules tasks to execute at a specified time

execution persistence
Description Indicator Process Target
Framework service call android.app.job.IJobScheduler.schedule N/A N/A
Framework service call android.app.job.IJobScheduler.schedule 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

Checks memory information

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

Processes

com.ymobi.znqanwd.koufpibtwffzkh

com.ymobi.znqanwd.koufpibtwffzkh:RemoteProcess

com.ymobi.znqanwd.koufpibtwffzkh:guard

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 216.58.204.72:443 ssl.google-analytics.com tcp
GB 142.250.187.206:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 172.217.16.238:443 android.apis.google.com tcp
US 1.1.1.1:53 api.adsnative123.com udp
GB 216.58.201.100:443 tcp
GB 216.58.201.100:443 tcp

Files

/data/user/0/com.ymobi.znqanwd.koufpibtwffzkh/app_tfile/fields.jar

MD5 cceb8db3b057d24673d49eda229e9892
SHA1 b18f6353b2156410249079a3b7b86ef3a530e8ee
SHA256 e900cb4c3fe9d8f45196a7457e9645c65b0f3cde820f4161950252cff67a4d97
SHA512 4a42cde3165a706e823caa1362001ed8aa647caf22325a4f2554c64fc4ebcd79afe44fe5eab5474221806f26e7aca9d2901026de6e597ef62fe867f123e4bd57

/data/user/0/com.ymobi.znqanwd.koufpibtwffzkh/app_tfile/fields.jar

MD5 73b11c4c10150bbd4f29ad012dc11dde
SHA1 65c83ad32c29f9811c32eda75d7fcdc92ef42dda
SHA256 52132037e9b950a9cb48d6374ee2c6747a6bfe776e13a726395771f1b40ee9da
SHA512 3e53b1ee22a00e60896da86d2695195e0965c93d190c4d1c0dba2eb5c611d670ee7693a9f8756858255e2b170cb82a753719dd4d6a827af437309b7a1dcc6f01

/data/user/0/com.ymobi.znqanwd.koufpibtwffzkh/databases/tbcom.ymobi.znqanwd.koufpibtwffzkh-journal

MD5 3391d2c1d16e04fb54d2c9449d79bf59
SHA1 72ab1416fba677bc224b2150bab605ff204478e9
SHA256 a89b78afda21361422f297c96189e96fb3c07cb31b6c4d9f95aa9dfd8d5b12ba
SHA512 12cec3fd9dcba649a4d57c13944bae4c6ac2c813e701e6e5070d0f07971a46973849764cc62f2d9bd8b61ffc12d7aca96a8c49f2c80446d9f771babde94d7c52

/data/user/0/com.ymobi.znqanwd.koufpibtwffzkh/databases/tbcom.ymobi.znqanwd.koufpibtwffzkh

MD5 ebfd4869bb86abd638bc48b891f3e1c8
SHA1 a27f262fe7a41ec9976d457416447f8b78c80e03
SHA256 5f49bca53de766023101cc1ac8dda79a83c485fce8d9138452b39d1853d2fe0f
SHA512 062fd15e0a34619071834f2d81889e6a100c3a707e53621b16d584182a57c690f6a24a73e19fb77678d857fde477935811a963998a73d7ffe971d6ebd9cafb07

/data/user/0/com.ymobi.znqanwd.koufpibtwffzkh/databases/tbcom.ymobi.znqanwd.koufpibtwffzkh-journal

MD5 f1809ee976cb1ba84f714118ae0722e6
SHA1 8c47d57bc724e7adf63dff841e33c8dd1937b1bf
SHA256 aecaf380e73aa3c76b6a099811b0fee37d69b843f6e4bf857d3b3e196ed43602
SHA512 e51b8213bf5ef911a0bf48d359f5730c617fcf605351d1e5e4ee53906ced9dd0e9c6777223cbb63a3357dffe234f06dce89eaad9d351a373e5704300a50e4117

/data/user/0/com.ymobi.znqanwd.koufpibtwffzkh/databases/tbcom.ymobi.znqanwd.koufpibtwffzkh-journal

MD5 2e10d6f2bd2d86678edf487c85146c66
SHA1 e5fbb29985539f7526fe9ac2d193fec73cb7ba05
SHA256 5d3c2b7d25ad65b7fdfcbf981642825a56da70eba1393981396b26322ee5c14a
SHA512 cd77178bf0542d8d022feeb8f8f204c5a01d028aeb4f3fa96d3985f791d583229aab5cc95667b58a474ec6140428683d9df0fc66ffe4d36a4f5324f458a15235

/storage/emulated/0/Download/sdsid

MD5 b8c37e33defde51cf91e1e03e51657da
SHA1 dd01903921ea24941c26a48f2cec24e0bb0e8cc7
SHA256 fe675fe7aaee830b6fed09b64e034f84dcbdaeb429d9cccd4ebb90e15af8dd71
SHA512 e3d0e2ef3cab0dab2c12f297e3bc618f6b976aced29b3a301828c6f9f1e1aabbe6dab06e1f899c9c2ae2ca86caa330115218817f4ce36d333733cb2b4c7afde7