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Overview

overview

10

Static

static

6

91c8fc62f4...cc.apk

android-9-x86

10

91c8fc62f4...cc.apk

android-13-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    132s
  • platform
    android_x64
  • resource
    android-33-x64-arm64-20240624-en
  • resource tags

    androidarch:arm64arch:x64image:android-33-x64-arm64-20240624-enlocale:en-usos:android-13-x64system
  • submitted
    04/01/2025, 22:00

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General

  • Target

    91c8fc62f4643ed7a9418dbf37601143f8da7e84700f5df6d83ea1f585dfbbcc.apk

  • Size

    2.6MB

  • MD5

    e027f25cd292bc603a0fc0e15060ac80

  • SHA1

    4c0684041a3ddb128c51d3aca1542bbd30af4ede

  • SHA256

    91c8fc62f4643ed7a9418dbf37601143f8da7e84700f5df6d83ea1f585dfbbcc

  • SHA512

    001b29dc225838d5e2aa245b98b37b20bd98906cc041f9c7b0888d3f014f2c2d08f440f9f010cddf47964afadb9c09e7a13d87f38748dddf2612406a28f545c3

  • SSDEEP

    49152:ug/0eyPmfR9NunmkDI0O+bMGoUdB5NESR5QQXPGRo0m3U5N:dJ9NumkDI0O+wIdB5NE+x0mEH

Score
10/10
ermachookbankercollectioncredential_accessdiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

ermac

rsa_pubkey
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key

Extracted

Family

hook

rsa_pubkey
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

    bankertrojaninfostealerermac
  • Ermac family
    ermac
  • Ermac2 payload 1 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 2 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.

    collectionevasioncredential_access
  • Obtains sensitive information copied to the device clipboard 2 TTPs 1 IoCs

    Application may abuse the framework's APIs to obtain sensitive information copied to the device clipboard.

    collectioncredential_accessimpact
  • 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.

    evasionpersistence
  • Queries the mobile country code (MCC) 1 TTPs 1 IoCs
    discovery
  • Reads information about phone network operator. 1 TTPs
    discovery
  • 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.gokomozunoxi.duhe
    1⤵
    • Loads dropped Dex/Jar
    • Makes use of the framework's Accessibility service
    • Obtains sensitive information copied to the device clipboard
    • Queries information about running processes on the device
    • Acquires the wake lock
    • Makes use of the framework's foreground persistence service
    • Queries the mobile country code (MCC)
    • Schedules tasks to execute at a specified time
    • Uses Crypto APIs (Might try to encrypt user data)
    • Checks CPU information
    • Checks memory information
    PID:4323

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Scheduled Task/Job

1
T1603

Persistence

Foreground Persistence

1
T1541

Scheduled Task/Job

1
T1603

Privilege Escalation

Defense Evasion

Download New Code at Runtime

1
T1407

Foreground Persistence

1
T1541

Input Injection

1
T1516

Virtualization/Sandbox Evasion

2
T1633

System Checks

2
T1633.001

Credential Access

Clipboard Data

1
T1414

Input Capture

2
T1417

GUI Input Capture

1
T1417.002

Keylogging

1
T1417.001

Discovery

Process Discovery

1
T1424

System Information Discovery

2
T1426

System Network Configuration Discovery

3
T1422

Lateral Movement

Collection

Clipboard Data

1
T1414

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

Data Manipulation

1
T1641

Transmitted Data Manipulation

1
T1641.001

Input Injection

1
T1516

Replay Monitor

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Downloads

  • /data/user/0/com.gokomozunoxi.duhe/app_ded/xoszOUJ26HaLqKby5Wkw2nMR38KKkbBu.dex
    Filesize

    1.5MB

    MD5

    bafd479185fccc355d0ad370e2f81491

    SHA1

    ba31b8293b54e82b8658d4e32d0f026399c1a618

    SHA256

    79272df7cbd774b790b489d307c3451f0c42f27598f928c9403b8c3f3c4fce88

    SHA512

    3ce22fe9a5fb6ca937743be23e67a03856693a78d12172e06b5610ed1b5c5af34adcdb8ec1e8e7d104d33027472a265f0fa8ab91128308b0faa95d52834ed8de

    Download Submit

  • /data/user/0/com.gokomozunoxi.duhe/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    0eb157e1a86d4d00aa601dd2f6ff3ee3

    SHA1

    fee434f784e73cc7916322e949f727caf8363102

    SHA256

    b9a8194b71a046e8c0eb30995827b582b4bea834f630a5df2483b778a7d7d8a4

    SHA512

    b9b79b8c3af8a3f140df230fd89e95206358ba50ff214e7323a2dbbe2937b795f970e588302ffd5d721318bd597ce0a27af26d6cdb07f45569c30209845082a8

    Download Submit

  • /data/user/0/com.gokomozunoxi.duhe/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    6e73a020e7f613ff14b51a06210f4627

    SHA1

    4f803ac3751fc5ea9c31ff330f225eed8bf6c15c

    SHA256

    2f76889a535c751f54881810f41836bf1246751c98f22bc6472aaa4ead8d1bc6

    SHA512

    25dad6f6b4ba9b2224a422383ad426fc7f1101b15b792ead58f729a75a9c3247073c5bf54d373b776efe0a8365fbaa1bd5b295abe7b66cf3fffd007a8dfc8e64

    Download Submit

  • /data/user/0/com.gokomozunoxi.duhe/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/user/0/com.gokomozunoxi.duhe/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    0a728c9e40bfdbd5d5a2647a2e88e156

    SHA1

    4ba2a8231dc8b03cc7d1156b5377769d29b3a483

    SHA256

    61d372ca48796f5750f2f23de476d6915ce6647b71fba86efa4b26089ced1d80

    SHA512

    921f277d5f7a270536ee6c4ad12a9929e860b5707fbb2d0ae523dcdb74c8452fc107dc88dc6d98dfd5d2129e0d71b42443a5dbebcd38fe62100b7860338dcf06

    Download Submit

  • /data/user/0/com.gokomozunoxi.duhe/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    08823d06ac06e8cb661eaa48661e7868

    SHA1

    e30e95b604ee4fb08f4c03c7a6f048f994907d72

    SHA256

    f2571bef9befd4b538fd077ddc1489b3c170d02fb0b8cf5c97bffdebbd20b3ce

    SHA512

    4be60dd5aaaf4f40ac8b9b371aa1a31e8a37163bcdc2514c099c69a234e83d98337314174450156210cf09b12d0c87d802752cf8e1e6f63a52e4e220a6b1bc0a

    Download Submit

  • /data/user/0/com.gokomozunoxi.duhe/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    2e2864725c9a9ee0843f566725829ccb

    SHA1

    e2a3460f5fd6134e434e79b4563e0e58d333fbe3

    SHA256

    48e2a4128111e7211db3a90f16bda0d5659a41babdcb552f379205748a4880bb

    SHA512

    79bd6adb63012e5f36c49e2e69b9c4d3741b1266c7f39fc5f20447074175bc57423ac4ae859a0b81200edfad9b434998ebcbd5212573f091b5f2fc767816c313

    Download Submit

  • /data/user/0/com.gokomozunoxi.duhe/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫
    Filesize

    1.4MB

    MD5

    e88d2a8037572ad0d4ddcb316e4513e4

    SHA1

    a7379600aec54e8f4cb690a5e9c988e8447742db

    SHA256

    6e99a9c8ebab0baecf2d7bec00a4e8e8771f8c7a91e6000434b9870c5f47e5e0

    SHA512

    5604c721ce88effcfaef4b61081158aefae4580ef51a38b712ee7916c4a8340da3f67eaa32d3c679bc340f359d8933fba379248f4f1bca2b41b7a5aacafea9de

    Download Submit

  • /data/user/0/com.gokomozunoxi.duhe/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫.
    Filesize

    8B

    MD5

    1570cb876bf03d1d797f7c2ebbda6703

    SHA1

    58022ca5da87610607337e4c19be20e23c0319f7

    SHA256

    2bb457f66b37f4856322fb46fdd6252cbebd4b6575580b054897561d05b6b7ea

    SHA512

    6a7a1a2369523f91a047f1e92b77315baab489aa66ca81351a94eefe47d94a3ae40bb6302f694a94c62874cc70f05f70bbca811bbbca7a5c5961461a89f663cb

    Download Submit