e83f32f70ed8b6d83972eac4225d5ab55734deb95d6e094464730f781b215c6d

Analysis

max time kernel
367s
max time network
592s
platform
android-9_x86
resource
android-x86-arm-20240910-en
resource tags

arch:armarch:x86image:android-x86-arm-20240910-enlocale:en-usos:android-9-x86system
submitted
24/03/2025, 12:30

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General

Target

rex.apk
Size

5.9MB
MD5

7592b1770a1d0d5e669f8823d7ce6227
SHA1

afcad66bb5bff1d2398404ff9120b0b0302fa8c8
SHA256

0b9a995068927a901a45dfc103d707f47615ecac92706ae9169f4329b65569a5
SHA512

e8f34c11f88a8d13a5f985b753d6e9f91b21be0e3f92aad30daf98205190a221a92b732701ec94ab1c2c0018eac62e358cee09d37198b88f8907f2d64b6bca0d
SSDEEP

98304:yKd2ZrR7Wa+1Q2EVHlfv0wSZQV6Ipst7YhbDAhtlLxxFKyRbg3O+GCXnmqU:TNY0n9IeZwbDAhtl1eyFImqU

Score

8^/10

collection defense_evasion discovery persistence

Malware Config

Signatures

Checks if the Android device is rooted. 1 TTPs 2 IoCs

defense_evasion

System Information Discovery

T1426

ioc	Process
/system/app/Superuser.apk	com.tencent.mm
/sbin/su	com.tencent.mm

Queries the phone number (MSISDN for GSM devices) 1 TTPs
discovery

System Network Configuration Discovery
T1422

Reads the content of the SMS messages. 1 TTPs 1 IoCs

collection

SMS Messages

T1636.004

description	ioc	Process
URI accessed for read	content://sms/	com.tencent.mm

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
14	api.ipify.org
15	api.ipify.org

Makes use of the framework's foreground persistence service 1 TTPs 1 IoCs

Application may abuse the framework's foreground service to continue running in the foreground.

defense_evasion persistence

Foreground Persistence

T1541

description	ioc	Process
Framework service call	android.app.IActivityManager.setServiceForeground	com.tencent.mm

Queries the mobile country code (MCC) 1 TTPs 1 IoCs

discovery

System Network Configuration Discovery

T1422

description	ioc	Process
Framework service call	com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone	com.tencent.mm

Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs

defense_evasion

User Evasion

T1628.002

description	ioc	Process
Intent action	android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	com.tencent.mm

Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs

persistence

Broadcast Receivers

T1624.001

description	ioc	Process
Framework service call	android.app.IActivityManager.registerReceiver	com.tencent.mm

Checks CPU information 2 TTPs 1 IoCs

System Checks

T1633.001

System Information Discovery

T1426

description	ioc	Process
File opened for read	/proc/cpuinfo	com.tencent.mm

Checks memory information 2 TTPs 1 IoCs

System Checks

T1633.001

System Information Discovery

T1426

description	ioc	Process
File opened for read	/proc/meminfo	com.tencent.mm

com.tencent.mm
1⤵
- Checks if the Android device is rooted.
- Reads the content of the SMS messages.
- Makes use of the framework's foreground persistence service
- Queries the mobile country code (MCC)
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Checks CPU information
- Checks memory information
PID:4400
- logcat -c
  2⤵
  PID:4430

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Persistence

Event Triggered Execution

T1624

Broadcast Receivers

T1624.001

Foreground Persistence

T1541

Privilege Escalation

Defense Evasion

Foreground Persistence

T1541

Hide Artifacts

T1628

User Evasion

T1628.002

Virtualization/Sandbox Evasion

T1633

System Checks

T1633.001

Credential Access

Discovery

System Information Discovery

T1426

System Network Configuration Discovery

T1422

Lateral Movement

Collection

Protected User Data

T1636

SMS Messages

T1636.004

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

/data/data/com.tencent.mm/app_sslcache/au-bank-c625f-default-rtdb.firebaseio.com.443

Filesize
8KB

MD5
fb69d451bacd9cecc9a094846440afd4

SHA1
ef0ee44272d2213a692673e7eb660f34a572f54e

SHA256
89ee33f3b3a1eae8de3e7e9c8bda2d5a81ecb61b1496172f850bcd8754a85627

SHA512
99a1a1cc9cb64c47f9c1a30ece27ca7682ff4e59b69a5a27a722b7e347d985f130ed9fb53f946750d70021a4644fdd5965c9b42b0c2986ca46ea0ee2ce97cb76

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads