Malware Analysis Report

2025-01-19 05:00

Sample ID 241213-1yessazkas
Target 4d4053be2e70b36147b09da24f3b1cb3425064ef29272620ebfb6edad92f14ec.bin
SHA256 4d4053be2e70b36147b09da24f3b1cb3425064ef29272620ebfb6edad92f14ec
Tags
xloader_apk banker collection discovery evasion impact infostealer persistence stealth trojan
score
10/10

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
10/10

SHA256

4d4053be2e70b36147b09da24f3b1cb3425064ef29272620ebfb6edad92f14ec

Threat Level: Known bad

The file 4d4053be2e70b36147b09da24f3b1cb3425064ef29272620ebfb6edad92f14ec.bin was found to be: Known bad.

Malicious Activity Summary

xloader_apk banker collection discovery evasion impact infostealer persistence stealth trojan

Xloader_apk family

XLoader, MoqHao

XLoader payload

Removes its main activity from the application launcher

Checks if the Android device is rooted.

Loads dropped Dex/Jar

Reads the content of the MMS message.

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

Queries account information for other applications stored on the device

Queries the phone number (MSISDN for GSM devices)

Acquires the wake lock

Reads information about phone network operator.

Declares services with permission to bind to the system

Requests disabling of battery optimizations (often used to enable hiding in the background).

Attempts to obfuscate APK file format

Requests dangerous framework permissions

Makes use of the framework's foreground persistence service

Uses Crypto APIs (Might try to encrypt user data)

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

Checks CPU information

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-13 22:03

Signatures

Attempts to obfuscate APK file format

Declares services with permission to bind to the system

Description Indicator Process Target
Required by notification listener services to bind with the system. Allows apps to listen to and interact with notifications on the device. android.permission.BIND_NOTIFICATION_LISTENER_SERVICE N/A N/A

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 application to read from external storage. android.permission.READ_EXTERNAL_STORAGE N/A N/A
Allows an application to receive SMS messages. android.permission.RECEIVE_SMS N/A N/A
Allows an application to read SMS messages. android.permission.READ_SMS N/A N/A
Allows an application to send SMS messages. android.permission.SEND_SMS 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 access to the list of accounts in the Accounts Service. android.permission.GET_ACCOUNTS N/A N/A
Allows an app to post notifications. android.permission.POST_NOTIFICATIONS N/A N/A
Allows an application a broad access to external storage in scoped storage. android.permission.MANAGE_EXTERNAL_STORAGE N/A N/A
Allows read access to the device's phone number(s). android.permission.READ_PHONE_NUMBERS N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-12-13 22:03

Reported

2024-12-13 22:05

Platform

android-x86-arm-20240624-en

Max time kernel

149s

Max time network

153s

Command Line

pkukhxn.qhujdityr.wqdrdx.tlfwpfet

Signatures

XLoader payload

Description Indicator Process Target
N/A N/A N/A N/A

XLoader, MoqHao

trojan infostealer banker xloader_apk

Xloader_apk family

xloader_apk

Checks if the Android device is rooted.

evasion
Description Indicator Process Target
N/A /system/xbin/su N/A N/A
N/A /sbin/su N/A N/A
N/A /system/bin/su N/A N/A

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/pkukhxn.qhujdityr.wqdrdx.tlfwpfet/app_picture/1.jpg N/A N/A
N/A /data/user/0/pkukhxn.qhujdityr.wqdrdx.tlfwpfet/app_picture/1.jpg N/A N/A
N/A /data/user/0/pkukhxn.qhujdityr.wqdrdx.tlfwpfet/app_picture/1.jpg N/A N/A
N/A /data/user/0/pkukhxn.qhujdityr.wqdrdx.tlfwpfet/files/b N/A N/A
N/A /data/user/0/pkukhxn.qhujdityr.wqdrdx.tlfwpfet/files/b 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.getAccounts N/A N/A

Queries the phone number (MSISDN for GSM devices)

discovery

Reads the content of the MMS message.

collection
Description Indicator Process Target
URI accessed for read content://mms/ N/A N/A

Acquires the wake lock

Description Indicator Process Target
Framework service call android.os.IPowerManager.acquireWakeLock N/A N/A

Makes use of the framework's foreground persistence service

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

Reads information about phone network operator.

discovery

Requests disabling of battery optimizations (often used to enable hiding in the background).

evasion
Description Indicator Process Target
Intent action android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS 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

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 CPU information

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

Processes

pkukhxn.qhujdityr.wqdrdx.tlfwpfet

/system/bin/dex2oat --instruction-set=x86 --instruction-set-features=ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt --runtime-arg -Xhidden-api-checks --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --inline-max-code-units=0 --compact-dex-level=none --dex-file=/data/user/0/pkukhxn.qhujdityr.wqdrdx.tlfwpfet/app_picture/1.jpg --output-vdex-fd=46 --oat-fd=47 --oat-location=/data/user/0/pkukhxn.qhujdityr.wqdrdx.tlfwpfet/app_picture/oat/x86/1.odex --compiler-filter=quicken --class-loader-context=&

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 m.vk.com udp
RU 87.240.129.133:443 m.vk.com tcp
KR 91.204.226.54:28899 tcp
KR 91.204.226.54:28899 tcp
KR 91.204.226.54:28899 tcp
GB 142.250.200.46:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.179.238:443 android.apis.google.com tcp
KR 91.204.226.54:28899 tcp
KR 91.204.226.54:28899 tcp
KR 91.204.226.54:28899 tcp
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Files

/data/data/pkukhxn.qhujdityr.wqdrdx.tlfwpfet/app_picture/1.jpg

MD5 6e7a5ff410dd2fbe5df73afb23b8056c
SHA1 d723b52d008853e5f5c12823974c05e32e664bdc
SHA256 c295b725e51820792244007008c573477f218cb322b59d41049b50ba212c0d27
SHA512 0307724531fabe5a96b72c2d72a55539c1aa8bfdba8eabb6538777af4004394fa2d7c62303040cdcaa27a6788612bd87aa0a9d1175f7a20804c2fd242e8d6b61

/data/user/0/pkukhxn.qhujdityr.wqdrdx.tlfwpfet/app_picture/1.jpg

MD5 7db4472ad43eb946184360d103cde9c8
SHA1 0000c624f1a409b8ef69d631c3151e4d31eefeb9
SHA256 4b6a6192a46958151da796c8dffbf6ec4f7a42b230a0f28364eb50ca74eb1d79
SHA512 7a9f4688a1aebc90f18b34d61fb6e2fd070124f376f7448675ca302cc69ed9c7b6155d931f08f560f661a20388f130c21d9514d3a374889e3fa038448f891886

/data/data/pkukhxn.qhujdityr.wqdrdx.tlfwpfet/files/b

MD5 3e04a3b314779ab7b515b04648084b64
SHA1 4b76a4fb951eb54b6c8593f50f4b7cc58b2997f1
SHA256 d24fc9979ea6d5e9a278ac59c422f3b189adbe5671a3be0f8e44c52a50af78b7
SHA512 cc87dbada39c5c2396c105d0a7dc9351ef70621261f5a892ecee526b4eac769e721f97ec1913f37dc092d46393c0f6a5d75dfb43fdcb6270236fa8a633ffe984

/storage/emulated/0/.msg_device_id.txt

MD5 eb60a43c3ee1b99d62d7ce678f96d9b8
SHA1 2535069a4f1ebba52f43d36e1e75c719608ccb7e
SHA256 86a0bf22172abe3f0e4167d644d0283e18d7929d2047a6aad5bf10aa4998d727
SHA512 13d9555df6ec2111a44b74317abe135e93e5f36e7001f67e91c09b3aeff95dd5e21f93c854649474e8514f4ebebc3993c25b0593721b543cbe05ff2d269f36ca

/data/data/pkukhxn.qhujdityr.wqdrdx.tlfwpfet/files/oat/b.cur.prof

MD5 828e63aa967cfdd66768bd950a66d907
SHA1 f1f4aa968ae8b18cebf334dfe3ead3689a35bf98
SHA256 46772d7768b2bd537e5b26da3088a187e8dc9e63e0c41c7f8d206a335d119bba
SHA512 d8d44a079e550d0065091e40756fa4d1c6ffca7bf0d308c981419d0a20d894493d518444d8da76d02955c06b273c5eb3e5bf2213ae35659058a9329df761ab46

/data/data/pkukhxn.qhujdityr.wqdrdx.tlfwpfet/files/oat/b.cur.prof

MD5 f00820e5b486383d848def4deb057428
SHA1 463ce49037457694bf594453370363f81808bdff
SHA256 14e072833258ba244b93ec009ecc3a4400c25bc9f1997d3822f9fa4562e9ba17
SHA512 64e92363cdda76ba0e6c5d52ad27bce3a4f89bca7021c8def438ba5802c7bb52553108fe0756f9d5146b2174b0d0f1c85778fccab981db37680f4664f5878c19

/data/data/pkukhxn.qhujdityr.wqdrdx.tlfwpfet/files/oat/b.cur.prof

MD5 2a2e86c682c497448cecb668e6f70aa3
SHA1 e343345a313c73929bddfa6d12a7569c4a662317
SHA256 5e7ea186d65b8cb6c3fb63cffca698fab32f6940ff36a1a4df6f5fdaa48de805
SHA512 03291130ff7069fa1658a8ab30fbf8ae823599ef77cef439b4ce6af60011f965d119a4f8a7fbe5ae567f5c8f299c15a5c155c17d0bfcea35aaa2971c7fe19f5d