7080e58f1a02b1d2e8083ef01e2ae9b11de1fb1467d7e53fbc8f37730ff478c5

Analysis

max time kernel
146s
max time network
147s
platform
android_x86
resource
android-x86-arm-20240624-en
resource tags

androidarch:armarch:x86image:android-x86-arm-20240624-enlocale:en-usos:android-9-x86system
submitted
23/10/2024, 01:05

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General

Target
polyvideo.apk
Size 388KB
Sample241023-bfvc3stbmg
SHA256 edceaaa805c0f3c74557331bc209ab0452e12a5390322f1dcbfc96dd653a4e82
MD5 e7e4a401eb53b4393aacf9f4a54cf4d7
SHA1 a25d23fc8fa3fd6d341dd03e809581022c865b1f
SHA512 0512ac87b5626a6a1c32d1f90b2d53f2210767fa7794f4fe123213b19ce1681db276384dcc525b1e72aaa9e2a31114cb131b5c556f753ba9f7c1031de879d46c
SSDEEP 6144:S/C/KKJWF0w3Nv++8RfNulq+rAqPwT8B1zr9+ju2Z0MG+zEcHy1X28aBwGSUr2hl:S/CKljQulqSbzcPZI+YcHy1X2rCjhbZ
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

banker discovery evasion impact persistence

Malware Config

Signatures

Checks Android system properties for emulator presence. 1 TTPs 1 IoCs

evasion

System Checks

T1633.001

description	ioc	Process
Accessed system property	key: ro.product.model	com.bech.y

Loads dropped Dex/Jar 1 TTPs 2 IoCs

Runs executable file dropped to the device during analysis.

evasion

Download New Code at Runtime

T1407

ioc	pid	Process
/data/user/0/com.bech.y/app_ttmp/t.jar	4291	/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.bech.y/app_ttmp/t.jar --output-vdex-fd=44 --oat-fd=45 --oat-location=/data/user/0/com.bech.y/app_ttmp/oat/x86/t.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.bech.y/app_ttmp/t.jar	4259	com.bech.y

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
banker discovery

Security Software Discovery
T1418.001

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

Process Discovery

T1424

description	ioc	Process
Framework service call	android.app.IActivityManager.getRunningAppProcesses	com.bech.y

Queries information about active data network 1 TTPs 1 IoCs

discovery

System Network Connections Discovery

T1421

description	ioc	Process
Framework service call	android.net.IConnectivityManager.getActiveNetworkInfo	com.bech.y

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.bech.y

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.bech.y

Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs

impact

Data Encrypted for Impact

T1471

description	ioc	Process
Framework API call	javax.crypto.Cipher.doFinal	com.bech.y

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.bech.y

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.bech.y

com.bech.y
1⤵
- Checks Android system properties for emulator presence.
- Loads dropped Dex/Jar
- Queries information about running processes on the device
- Queries information about active data network
- Queries the mobile country code (MCC)
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Uses Crypto APIs (Might try to encrypt user data)
- Checks CPU information
- Checks memory information
PID:4259
- /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.bech.y/app_ttmp/t.jar --output-vdex-fd=44 --oat-fd=45 --oat-location=/data/user/0/com.bech.y/app_ttmp/oat/x86/t.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4291

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Persistence

Event Triggered Execution

T1624

Broadcast Receivers

T1624.001

Privilege Escalation

Defense Evasion

Download New Code at Runtime

T1407

Virtualization/Sandbox Evasion

T1633

System Checks

T1633.001

Credential Access

Discovery

Process Discovery

T1424

Software Discovery

T1418

Security Software Discovery

T1418.001

System Information Discovery

T1426

System Network Configuration Discovery

T1422

System Network Connections Discovery

T1421

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

T1471

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Downloads

t.jar.cur.prof

Path /data/data/com.bech.y/app_ttmp/oat/t.jar.cur.prof
Size 450B
SHA256 a1cfe81a7d29380ec83c60adc372c2a69b30cc2a6550ef50cd2a11c83265bf2a
MD5 850b9b1ff2eeb85791ee13f7f9010574
SHA1 75509064bf558c4649a0abe7d054ed16a27ccd3a
SHA512 b32253939941cfbdb007f1c2514e6efd8a1e136aff6364a774277b7be16cf31d048a81beff96f6e9a17f1489042ac408694487b9356174590525364af78d5b62
MD5 SHA1 SHA512

Submit Download

t.jar

Path /data/data/com.bech.y/app_ttmp/t.jar
Size 166KB
SHA256 1cb5236da9cb6e4609c60ffefaac9fce9d862cae98ec1c810984f89b16434488
MD5 726393f7ab0b83048af0eabda50b2003
SHA1 a98455e3e35e80b61dfb5b6252799ccf3577e33a
SHA512 9cc46130bb4f5a7e23d244d93de239180c0385af0b37d5b123f77b2e91968857d45e4acb3989b08f724da95cb4e76c1e2ee27666ee5790b83c2c4001e9203e1a
SSDEEP 3072:WFXijmp2fnvhu1sYpMu1dgpjEq119LyYf0Ftrd8ko8CjhnpBVJt:Wkju2D0MG+lEcLyPXe8IBR
MD5 SHA1 SHA512 SSDEEP

Submit Download

t.jar

Path /data/data/com.bech.y/app_ttmp/t.jar
Size 166KB
SHA256 f7b08ddefb2eab0884f5be8aad5a4aae71b010f9d54ea43e6fa0a6c514693f03
MD5 041106895d7f98ba2a3cda7df5195ee8
SHA1 e939e8449d79c8630ede5c7216cdd8d92bccb4cf
SHA512 d4586604cce1ca799906899d58dce963a8893fd68641541c699fa3391f38f163d4d07a5aa33e5f137ff69b20f1c2ed26d70295f10264cb71a9a245c195d7216d
SSDEEP 3072:ILfxCMobkDoXv3fTcX3Uc3xTQO98ypdM4jJQm5F7fJDEQ/m5fatgllO33:653rycX3XR9jVjmm5VJDE42Cg3O33
MD5 SHA1 SHA512 SSDEEP

Submit Download

com.bech.yb

Path /data/data/com.bech.y/databases/com.bech.yb
Size 4KB
SHA256 0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514
MD5 f2b4b0190b9f384ca885f0c8c9b14700
SHA1 934ff2646757b5b6e7f20f6a0aa76c7f995d9361
SHA512 ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1
MD5 SHA1 SHA512

Submit Download

com.bech.yb-journal

Path /data/data/com.bech.y/databases/com.bech.yb-journal
Size 512B
SHA256 838131cc56aaef1c8f9f7203c6ceeab812bec921715c1c1672cc173a8e111d23
MD5 2f72d6a5ddfd781e3ceba6a15109209f
SHA1 75f6b5a8be51aba6bf0e8848927b62828eabf41b
SHA512 d7c787d56403c461118f4ba7dc687b58fb8d338138a35c99a874c9d258b0506f6e2488aaf37bfa4e3f7dad52e6fe71beb7a5fa2f677557a81353fdd5c4355ab2
MD5 SHA1 SHA512

Submit Download

com.bech.yb-shm

Path /data/data/com.bech.y/databases/com.bech.yb-shm
Size 32KB
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012
SSDEEP 3::
MD5 SHA1 SHA512 SSDEEP

Submit Download

com.bech.yb-wal

Path /data/data/com.bech.y/databases/com.bech.yb-wal
Size 84KB
SHA256 e02a5cda684dd98a0b097e668c7ea690af3e0f5a8811f244cce68c036a3a6b16
MD5 4a2712c01616442aadb820e3d5fd4f6e
SHA1 12dc9ab81a5579931f4fb7d298ba1eb14816aaeb
SHA512 41d4dff7a446a8a117d73e5ee8079e922a2e7d676a18ff1f9f795819f83b92517dec0de24a466058e51543f287de1a806c2b68571f6f44e4d590c23ac542d26a
SSDEEP 96:4n0PKPFamtqb9brqborIqb5cQsmtqbxP2g:jYQkRp
MD5 SHA1 SHA512 SSDEEP

Submit Download

t.jar

Path /data/user/0/com.bech.y/app_ttmp/t.jar
Size 353KB
SHA256 6c98c0f8af247601b6650a369a49a25db524f2ee31109a3019e2fa5e9c7810ef
MD5 de0a9e2790a250a0079a44ae66ba8788
SHA1 b03b1d7c68cf845361076622d5ea99d15730a0d9
SHA512 6b2f5416910dc87079dc36651e2308e8e6a9695ca4800f32cbadb1f45269666697c26aa9b3d6c8a63f6bf51fcb320e3036bf91e50350f2b59e2a95e618040698
SSDEEP 6144:uydx+7UW0jm3MNIk8ca4IrzBdqvZEnseAkpswoa6hdLDys:YzM0oWPBWRdL+s
MD5 SHA1 SHA512 SSDEEP

Download

t.jar

Path /data/user/0/com.bech.y/app_ttmp/t.jar
Size 353KB
SHA256 8881fc118b17bb10d54fa7348673b88497c57600fbc4fcf409e118ccbff7ebc3
MD5 47562ecae00f3b2d091b3d2aaf283ae6
SHA1 362c299ad1516338be5886b04d786b1a2b7a5624
SHA512 6e8f811046e08b753010e563cebda1540d7fe56eb4c3af5655758a1bd5423565aba29533c0a64afefe259b2da79e0294080bda0213aa116b272e71701c8ad177
SSDEEP 6144:uydx+7UW0jm3i2+6lHF9nLcwaO0klCRKbmrUasTJOswoa6hdLDys:Yzihg0k5irUZJfRdL+s
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads