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Overview

overview

10

Static

static

6

154431d6a6...84.apk

android-9-x86

10

154431d6a6...84.apk

android-10-x64

10

154431d6a6...84.apk

android-11-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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
    19/02/2025, 22:06

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General

  • Target

    154431d6a6322ac15d65e4332bda75568df733cdece18785c909b52a590a0784.apk

  • Size

    4.4MB

  • MD5

    332a3b72266bbdb8416e2c87d4f04355

  • SHA1

    b7bb163b9230130c366fa9a4d6314c9e533ece8b

  • SHA256

    154431d6a6322ac15d65e4332bda75568df733cdece18785c909b52a590a0784

  • SHA512

    0a44a5a5372e60f9d921f4497c0d8059be4f542b59963c336ed30ad14953d760a19fa28f76731e1824d6ec3eecd5eef7dfe8a2118ca236b4364fafb45908ede7

  • SSDEEP

    98304:TxOg9IERyVt/jiRxYCE45QhDVOFfXTceXg5mphTbjD2odFG:If/jiXYC/SHONXAD4hTPpzG

Score
10/10
ermachookbankercollectioncredential_accessdefense_evasiondiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

ermac

C2

http://sdadfvcacdeadasdfas.pro

http://sdadfvcacdeadmsaasa.pro

http://sdadfvcacdeadaaaassf.pro

http://sdadfvcacdeadvadasdd.pro

http://sdadfvcacdeadcxvzcxzzx.pro
DES_key
AES_key

Extracted

Family

hook

C2

http://sdadfvcacdeadasdfas.pro

http://sdadfvcacdeadmsaasa.pro

http://sdadfvcacdeadaaaassf.pro

http://sdadfvcacdeadvadasdd.pro

http://sdadfvcacdeadcxvzcxzzx.pro
DES_key
AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

    bankertrojaninfostealerermac
  • Ermac family
    ermac
  • Ermac2 payload 2 IoCs
  • Hook

    Hook is an Android malware that is based on Ermac with RAT capabilities.

    rattrojaninfostealerhook
  • Hook family
    hook
  • Loads dropped Dex/Jar 1 TTPs 3 IoCs

    Runs executable file dropped to the device during analysis.

    evasion
  • Makes use of the framework's Accessibility service 4 TTPs 3 IoCs

    Retrieves information displayed on the phone screen using AccessibilityService.

    collectiondefense_evasioncredential_access
  • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
    bankerdiscovery
  • Queries information about running processes on the device 1 TTPs 1 IoCs

    Application may abuse the framework's APIs to collect information about running processes on the device.

    discovery
  • Queries the phone number (MSISDN for GSM devices) 1 TTPs
    discovery
  • Acquires the wake lock 1 IoCs
  • 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_evasionpersistence
  • Performs UI accessibility actions on behalf of the user 1 TTPs 8 IoCs

    Application may abuse the accessibility service to prevent their removal.

    evasion
  • Queries information about the current Wi-Fi connection 1 TTPs 1 IoCs

    Application may abuse the framework's APIs to collect information about the current Wi-Fi connection.

    discovery
  • Queries the mobile country code (MCC) 1 TTPs 1 IoCs
    discovery
  • Reads information about phone network operator. 1 TTPs
    discovery
  • Requests accessing notifications (often used to intercept notifications before users become aware). 1 TTPs 1 IoCs
    collectioncredential_access
  • Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
    persistence
  • Schedules tasks to execute at a specified time 1 TTPs 1 IoCs

    Application may abuse the framework's APIs to perform task scheduling for initial or recurring execution of malicious code.

    executionpersistence
  • Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
    impact
  • Checks CPU information 2 TTPs 1 IoCs
  • Checks memory information 2 TTPs 1 IoCs

Processes

  • com.aohnkabbk.duknivlat
    1⤵
    • Loads dropped Dex/Jar
    • Makes use of the framework's Accessibility service
    • Queries information about running processes on the device
    • Acquires the wake lock
    • Makes use of the framework's foreground persistence service
    • Performs UI accessibility actions on behalf of the user
    • Queries information about the current Wi-Fi connection
    • Queries the mobile country code (MCC)
    • Requests accessing notifications (often used to intercept notifications before users become aware).
    • Registers a broadcast receiver at runtime (usually for listening for system events)
    • Schedules tasks to execute at a specified time
    • Uses Crypto APIs (Might try to encrypt user data)
    • Checks CPU information
    • Checks memory information
    PID:4371
    • /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/com.aohnkabbk.duknivlat/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.aohnkabbk.duknivlat/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4396

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Scheduled Task/Job

1
T1603

Persistence

Event Triggered Execution

1
T1624

Broadcast Receivers

1
T1624.001

Foreground Persistence

1
T1541

Scheduled Task/Job

1
T1603

Privilege Escalation

Defense Evasion

Download New Code at Runtime

1
T1407

Foreground Persistence

1
T1541

Impair Defenses

1
T1629

Prevent Application Removal

1
T1629.001

Input Injection

1
T1516

Virtualization/Sandbox Evasion

2
T1633

System Checks

2
T1633.001

Credential Access

Access Notifications

1
T1517

Input Capture

2
T1417

GUI Input Capture

1
T1417.002

Keylogging

1
T1417.001

Discovery

Process Discovery

1
T1424

Software Discovery

1
T1418

Security Software Discovery

1
T1418.001

System Information Discovery

2
T1426

System Network Configuration Discovery

3
T1422

System Network Connections Discovery

1
T1421

Lateral Movement

Collection

Access Notifications

1
T1517

Input Capture

2
T1417

GUI Input Capture

1
T1417.002

Keylogging

1
T1417.001

Screen Capture

1
T1513

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

1
T1471

Input Injection

1
T1516

Replay Monitor

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Downloads

  • /data/data/com.aohnkabbk.duknivlat/app_dex/classes.dex
    Filesize

    1.5MB

    MD5

    c7280227779a391d948b9691926e70d2

    SHA1

    02051795bbe134323181dec8840ef73f58321423

    SHA256

    204f0c8732e08a98111e96655f3cb842aa5d83399c164f6c62af0d53c761512e

    SHA512

    61e50da13b47e5343eef8066cf9da17418485feeabb7748935a7176df6c29d6d516863ca4eff064b523e0214576faffe24292b1c899ea59a2ce579ff873a0497

    Download Submit

  • /data/data/com.aohnkabbk.duknivlat/cache/classes.dex
    Filesize

    678KB

    MD5

    76f224b40524e74d6c9a95f9b1a5ff25

    SHA1

    dc9406d64f28054c1b3affe3308bd6ff5fb939a3

    SHA256

    9301949b11a271ca0e72252f8b86b56b5ccf38459ff5d22a03c6710319fcf7d5

    SHA512

    ec07dac3510757bed0289b84f7dad8a261c7891be0d86a8233bb76dad90060e9d572d2f777731f6f4e16dd4b3b66dbd5178ec8a8dd70139d06e6962c4fdf4705

    Download Submit

  • /data/data/com.aohnkabbk.duknivlat/cache/classes.zip
    Filesize

    678KB

    MD5

    67e2b65d66d6c91f41cb3df7534fcfcb

    SHA1

    5a93977bcb83e8079624262d771bcbed569857a5

    SHA256

    636a2e4086afe45cffbcd30bb3d6404c6f0baedd312bb35f34f4f23659be5743

    SHA512

    dc25b9f6c56be4b50481d0b0696a258284b8e98bb7385ce022a40e720e2fcb9ce21abf755322b42600f6360b4dd8248dd2820131e3512eee963437749a612585

    Download Submit

  • /data/data/com.aohnkabbk.duknivlat/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.aohnkabbk.duknivlat/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    2516e01bce897055b3606f550d8da44b

    SHA1

    72f9ff91aa0f88de71725d9680f506afdc60e0a5

    SHA256

    634580a0eb22ba2cef1825168d08ceaf8b6aa40ff49d845ecee5cc49a14fd850

    SHA512

    2bd13a2e915adfd8d78e038f39351e9bebab30a2be299b81108942a2ff7bb22bc7386c16e78a99f7498efd8baa058b29a6e788126bb067d4711bcaacca96c764

    Download Submit

  • /data/data/com.aohnkabbk.duknivlat/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.aohnkabbk.duknivlat/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    ae4100f558ca7cf85df8606edec77a2c

    SHA1

    2f588fd3cdc292d384fb70eb97082ff452d08496

    SHA256

    9952d8251ad51bfc2831377d5b2610cf7468613472280aaa50ba000982393a4c

    SHA512

    4cb24affd01d07aca5cf0aa13095a4a375a7d317d77c3ede1af1a8b434b66eb655cf7ba668d78ffe67931fbb9f109196df040020475a7e8f62d57efefd50c2eb

    Download Submit

  • /data/data/com.aohnkabbk.duknivlat/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    c61f1ab2347fb32e7da61248d4353f2b

    SHA1

    45b972aee421a8048d6fb4acbb97653dbd934f72

    SHA256

    e208138558ede762bf2757328e21550fc68c5f7961108fc65240ed1a5e8a95e4

    SHA512

    3e8af94674d67b41d120f9e3b7590a8738c2762d53938e6c65e805279d0fec2d32dc03e52c0cebec054d14600f43e674a468d86fedc0b98d40fbaec25565dd65

    Download Submit

  • /data/data/com.aohnkabbk.duknivlat/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    52ba0a6ce90e905b4124e482b9b7cc97

    SHA1

    9567574c07562723526b137e94db22ea4c9a6770

    SHA256

    f262a336026597e55623c3ddb434fdb7cad41da4bf14763047a9004095493765

    SHA512

    6d6737c3e370f3a643a30b9beb0a4655846a4dc4250e83ac0af5c50ce1ee597892a68af85b7f06c73de85a954159fba22f9be4f6a5f84231871b8ee4753a0720

    Download Submit

  • /data/user/0/com.aohnkabbk.duknivlat/app_dex/classes.dex
    Filesize

    1.5MB

    MD5

    d0c74814f0d51d75fb4dfd945cb10c20

    SHA1

    0dc58ef0a5cae1ab3276f1fb7fa29a50789a5550

    SHA256

    8ba4fe96fa3dc9702e78c56184d08ca2eac9696e5fb64f34818d5547c6492cd3

    SHA512

    8835f563994b4784cc7d3ea96e5d93c0bda48ffe98dcd502d404e8a7fe25bdedaec671c4b30ade940da591c20647e42a2141cf3233c13b8fcdf01b27117b0e09

    Download Submit