Overview

overview

10

Static

static

6

913c3f5a4a...6f.apk

android-9-x86

10

913c3f5a4a...6f.apk

android-10-x64

10

913c3f5a4a...6f.apk

android-11-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    152s
  • 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
    14-01-2025 22:02

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    913c3f5a4ac477a4d3b22828cb7b34c19bb483d76c9e34fea2c2c2a839bc6d6f.apk

  • Size

    3.1MB

  • MD5

    567b35b4761c2ba1d892138c301b1101

  • SHA1

    64b8e8d590402ba162fa2e8c446ec30de33d6caa

  • SHA256

    913c3f5a4ac477a4d3b22828cb7b34c19bb483d76c9e34fea2c2c2a839bc6d6f

  • SHA512

    0a42739323f2daf57ddc6aaad9aac292573505477f64ce3c89fe60ccab3eca36e4efec3a3f339cc27fb47537cbdb91af9b384fbe1842d0dd2ad30432c37cdb7f

  • SSDEEP

    98304:B05FVxjEHmnwGDKxlMMW7JUkk6dH8FMkw+/IzkCpht:BmxQGFDe+7Wtan+/Ixt

Score
10/10
ermachookbankercollectioncredential_accessdiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

ermac

C2

http://154.216.17.69

AES_key

Extracted

Family

hook

C2

http://154.216.17.69

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 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
  • 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.

    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.fsaslkasata.kuri
    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:4213
    • /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.fsaslkasata.kuri/app_shed/LB.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.fsaslkasata.kuri/app_shed/oat/x86/LB.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4238

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

Loading Replay Monitor...

Downloads

  • /data/data/com.fsaslkasata.kuri/app_shed/LB.json
    Filesize

    735KB

    MD5

    19dd9a04c41a4a5079fc0fd01a463cd9

    SHA1

    5bf4efd520550528535a60cb96f997777f89f172

    SHA256

    b95d00de087834af97723dcad42cd3e28185ce239e9ae422ed96c48c947015c5

    SHA512

    2cd3187a11af71bc660df9d51e63640dd5353d3b0936f226f4106e21f382e1799843f4ed6c8d87ce3b5fe72c190795476ff6d57be4e538e703bbfadd0e4de8c5

    Download Submit

  • /data/data/com.fsaslkasata.kuri/app_shed/LB.json
    Filesize

    735KB

    MD5

    3d57a3bc0cc3f3bcea3bbabac2bf423d

    SHA1

    6e703b10c76e1cc8b2e85583383a00e42f56d4b4

    SHA256

    9cf0c3fe66a49d668c75a95b022592cd6815236f82d944cb9a472e0eeab36ca5

    SHA512

    e428afe928a93f2af1dbe82e88eef462e7beca5f0e268bb728c6da65273acdea37b1e65bc21b67e22a7a5d0ef74f7db06cd9c5daef8e298c98825171ebb1d892

    Download Submit

  • /data/data/com.fsaslkasata.kuri/app_shed/oat/LB.json.cur.prof
    Filesize

    3KB

    MD5

    ce5a83e3c83296e69be75ff66b16e64c

    SHA1

    b0e573ea6f56fa76aa2065f606ddef7fe5fab76e

    SHA256

    4dcda588797c282a2b73618ed510c5c11a1eb16847285ce692544d88e3981de4

    SHA512

    a1eb4f71904b24239581abc8ff20a9c690264bf7a4f1afba6cfa174df523449967c12720b40ed9cee45a6b7a754af138835d8934cd80e92cdd52ecd629ca32de

    Download Submit

  • /data/data/com.fsaslkasata.kuri/app_shed/oat/LB.json.cur.prof
    Filesize

    3KB

    MD5

    413bca894c5407c50e4dfb6cb3d10bfc

    SHA1

    b067176ffad6c759d8150e8d5a083de4d9740e1f

    SHA256

    c7296c1054bcde4bc96fe80ed07907b7314d7cc9ba76439f8cc007ffd924b0b8

    SHA512

    34049a39e2523f25f44eab532cf02cb511cd2546419b58970cfdccf031b47dfe212a316d9b46f9ab91fedefaa22733b5d64ba9a4ad0a31deb317b9455a485aa7

    Download Submit

  • /data/data/com.fsaslkasata.kuri/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.fsaslkasata.kuri/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    c0ed4135835c19bd025b84b22b0f2b96

    SHA1

    c98fbebd00a3d047a34356bec08fb374e3b0cd01

    SHA256

    1d059299b71ee3c635c5a4c5cfc858743880651d817f38a00e5ea72355b671ea

    SHA512

    6c967219d31c5b6235d87fed10774031b914c05c5320d9511db7e1dcd87c4fac09521ab4286f2794a3d04feafc63b6c4d28ab42c75e1005b9fdefec02db86394

    Download Submit

  • /data/data/com.fsaslkasata.kuri/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.fsaslkasata.kuri/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    8fb286ca3a8686847efb2443c2686120

    SHA1

    bc67cc22c93a2c55d4dbab5d070024a7982bcc4e

    SHA256

    ad5e203665b66ffc3b23e64311f4fe5ac50ba2b69f306b0ad62bb3ec3333f828

    SHA512

    764dba8686d39a34e5f6f32d85f5c4282ce4ee7dfc91cb2d05489f604ebb05c93da38be5dc49c2a013741384b2e4f936c80a617f7ad0f039f47e34031a3a5a09

    Download Submit

  • /data/data/com.fsaslkasata.kuri/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    ae7ddd1f93fe8dd861a68fc7a89fa6f2

    SHA1

    e1c30025fcaa08b3e7d9216e7e37a0023cc18ee6

    SHA256

    e73ae2fd698b619210e2cbf0545ecf596723f920e226291860c8d00fa7aeb849

    SHA512

    62574213ac671b0311cdf934af2bac85cd2bd1e71d1ddf4d6547b46aaf11150002c8b6a984edfcbd571ca634f3951362e06c7d0d7f180d82ecd78dbbe4adee9b

    Download Submit

  • /data/data/com.fsaslkasata.kuri/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    403710205db2f665873a93680b0aef98

    SHA1

    4ef1a10a53318b68549ba77955f9e1bfbd22cf57

    SHA256

    1841d184a097fec6fc4b9c1d916579568666c7e67597ff808fdaf7d136f184f4

    SHA512

    55fb82b44eb1eb919af62cb6bb514b539b4c7004b029c4c3e29f8ccb68c646cad318b43c8b28c8465d4615d0401a23cfaa290503772ad694e018f3d5d26ba713

    Download Submit

  • /data/user/0/com.fsaslkasata.kuri/app_shed/LB.json
    Filesize

    1.7MB

    MD5

    1a767207b9f279b066ee528e6fbb55e0

    SHA1

    83737766ec897e392d349f5214908d501f506a94

    SHA256

    73df73b48a9a51618d9628529b88b41a44a1c213804df7fc1c80b56e740ae0fc

    SHA512

    6a69ac352648ec3e990185d5e74dd3aa0116e9e18ca6523a973af72bb88c69fc8b12d65d2344832b9185cf4aca12ad58a5c6bfd57ffcbf0c98c8f555fa733a5e

    Download Submit

  • /data/user/0/com.fsaslkasata.kuri/app_shed/LB.json
    Filesize

    1.7MB

    MD5

    9eccb01fd5e6aa747a3b8fcb38173340

    SHA1

    77a21894421bbbe4ae767c9b56150c22a380f86a

    SHA256

    3163ad11d263490feeabaf6d1e83a9cd4f5466a031cc012c02bee0212edd09e3

    SHA512

    740be2e7273890531c52d94be49ec71ec7045fd38cfcfd6330951125996266832ed2ac13369d18931e8659b251149f3793a3e1f8c66a8b457063b2083c1788e2

    Download Submit