Analysis
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max time kernel
149s -
max time network
154s -
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
Static task
static1
Behavioral task
behavioral1
Sample
a2acdcb1d115e9c73e74aff890d25027c4351cdf4b26a8cb2f4c113fc38961a9.apk
Resource
android-x86-arm-20240910-en
Behavioral task
behavioral2
Sample
a2acdcb1d115e9c73e74aff890d25027c4351cdf4b26a8cb2f4c113fc38961a9.apk
Resource
android-x64-20240910-en
Behavioral task
behavioral3
Sample
a2acdcb1d115e9c73e74aff890d25027c4351cdf4b26a8cb2f4c113fc38961a9.apk
Resource
android-x64-arm64-20240910-en
General
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Target
a2acdcb1d115e9c73e74aff890d25027c4351cdf4b26a8cb2f4c113fc38961a9.apk
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Size
3.4MB
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MD5
b96a9a7f7a33102c7b485a523325f651
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SHA1
e7f19f92b098cbbcb988027a2c5965949bdb1a5a
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SHA256
a2acdcb1d115e9c73e74aff890d25027c4351cdf4b26a8cb2f4c113fc38961a9
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SHA512
26d67294b4cd14ff40ddfe061a5a60314776107ea92c10237fdb32adda4d874d2699ea9df59ddadc7e6f9ecd11a640fc79bd7ea7528907a783fac4e4807e4f0a
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SSDEEP
98304:Xmz66kb+7mG+0yZgTRcLpQ2L0ubDtricFL0:gz7mGjyZ1Q2wuvtW00
Malware Config
Extracted
ermac
http://154.216.17.69
Extracted
hook
http://154.216.17.69
Signatures
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Ermac
An Android banking trojan first seen in July 2021.
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Ermac family
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Ermac2 payload 2 IoCs
resource yara_rule behavioral1/memory/4362-0.dex family_ermac2 behavioral1/memory/4336-0.dex family_ermac2 -
Hook
Hook is an Android malware that is based on Ermac with RAT capabilities.
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Hook family
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Loads dropped Dex/Jar 1 TTPs 2 IoCs
Runs executable file dropped to the device during analysis.
ioc pid Process /data/user/0/com.fsaslkasata.kuri/app_sheriff/qmjpQI.json 4362 /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_sheriff/qmjpQI.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.fsaslkasata.kuri/app_sheriff/oat/x86/qmjpQI.odex --compiler-filter=quicken --class-loader-context=& /data/user/0/com.fsaslkasata.kuri/app_sheriff/qmjpQI.json 4336 com.fsaslkasata.kuri -
Makes use of the framework's Accessibility service 4 TTPs 3 IoCs
Retrieves information displayed on the phone screen using AccessibilityService.
description ioc Process Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId com.fsaslkasata.kuri Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText com.fsaslkasata.kuri Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId com.fsaslkasata.kuri -
Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
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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.
description ioc Process Framework service call android.app.IActivityManager.getRunningAppProcesses com.fsaslkasata.kuri -
Queries the phone number (MSISDN for GSM devices) 1 TTPs
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Acquires the wake lock 1 IoCs
description ioc Process Framework service call android.os.IPowerManager.acquireWakeLock com.fsaslkasata.kuri -
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.
description ioc Process Framework service call android.app.IActivityManager.setServiceForeground com.fsaslkasata.kuri -
Performs UI accessibility actions on behalf of the user 1 TTPs 8 IoCs
Application may abuse the accessibility service to prevent their removal.
ioc Process android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.fsaslkasata.kuri android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.fsaslkasata.kuri android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.fsaslkasata.kuri android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.fsaslkasata.kuri android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.fsaslkasata.kuri android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.fsaslkasata.kuri android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.fsaslkasata.kuri android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.fsaslkasata.kuri -
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.
description ioc Process Framework service call android.net.wifi.IWifiManager.getConnectionInfo com.fsaslkasata.kuri -
Queries the mobile country code (MCC) 1 TTPs 1 IoCs
description ioc Process Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone com.fsaslkasata.kuri -
Reads information about phone network operator. 1 TTPs
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Requests accessing notifications (often used to intercept notifications before users become aware). 1 TTPs 1 IoCs
description ioc Process Intent action android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS com.fsaslkasata.kuri -
Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
description ioc Process Framework service call android.app.IActivityManager.registerReceiver com.fsaslkasata.kuri -
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.
description ioc Process Framework service call android.app.job.IJobScheduler.schedule com.fsaslkasata.kuri -
Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
description ioc Process Framework API call javax.crypto.Cipher.doFinal com.fsaslkasata.kuri -
Checks CPU information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/cpuinfo com.fsaslkasata.kuri -
Checks memory information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/meminfo com.fsaslkasata.kuri
Processes
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com.fsaslkasata.kuri1⤵
- 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:4336 -
/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_sheriff/qmjpQI.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.fsaslkasata.kuri/app_sheriff/oat/x86/qmjpQI.odex --compiler-filter=quicken --class-loader-context=&2⤵
- Loads dropped Dex/Jar
PID:4362
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Network
MITRE ATT&CK Mobile v15
Persistence
Event Triggered Execution
1Broadcast Receivers
1Foreground Persistence
1Scheduled Task/Job
1Defense Evasion
Download New Code at Runtime
1Foreground Persistence
1Impair Defenses
1Prevent Application Removal
1Input Injection
1Virtualization/Sandbox Evasion
2System Checks
2Credential Access
Access Notifications
1Input Capture
2GUI Input Capture
1Keylogging
1Discovery
Process Discovery
1Software Discovery
1Security Software Discovery
1System Information Discovery
2System Network Configuration Discovery
3System Network Connections Discovery
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3KB
MD580cece1c81df55fc01e375c7aa80ff26
SHA16a76f8c6116ec566e7c2fd3bc8b36768be11c9f5
SHA256a77507cd6ced12c96e7cad69ff0ab1e540d4ac3e31dec95b79e91c0427d9d46b
SHA512cdb2f2517f6c94485112065dcdfe8ee2587468631aadea2e03b2c6c1a7b7aef62c2e5a5023f809f6abc58c618744f0dc099c19551e522083db809a5c005ac086
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Filesize
735KB
MD5538cb94ad1e7f7fc7510ad35fc7e23cb
SHA1b4e37ae6d26c2ca2633a77904e56ec1a734d6440
SHA25659ec419a9d3f8b308ffc6c0fe5bf1cf515c70e4cc079d06bf2e37cba4ea763ff
SHA512877801f5befe1d02b454ecdc885d8d1932703fed2f563759bc03d15001d21755ffe61928e7aa020e7a2a779bf6ef0c97ef9cf353040fa3173e8ff2146b2baddf
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Filesize
735KB
MD5b6022d081b7666e0900a298818fbf802
SHA108630c96c97173d739ab2dfdaaf41fb3accde33d
SHA256684ea431a812e475acf24884e04f0d9b797b156289ebab24670452419563c5cf
SHA5123707deea5cdd8fdf94a88deb02ee731a8e55bd5c0ff90a4794e4c7efa10e31fa8bddfea88bb19e99142a5544431662da13d773a3079abb18c26e84b33dcb06b4
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Filesize
4KB
MD5f2b4b0190b9f384ca885f0c8c9b14700
SHA1934ff2646757b5b6e7f20f6a0aa76c7f995d9361
SHA2560a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514
SHA512ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1
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Filesize
512B
MD58fe8e4fafa6014057c562bb0b50fd83c
SHA174c1e4c8c9af05fef91b44a2bbf748fdef367bf8
SHA25669e3eb889ebe7bd071fb9e4536b8b3ca2f9d6cf91b54a562ab4b126e3c6bfa40
SHA512be0c89b83d8a88903804864a73152a175994aca9598a46ba9ebda286d96d90632a978b2c5b3ba72228a1ae63505f9d21119ab48ea7e84a078947921922d93a03
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Filesize
32KB
MD5bb7df04e1b0a2570657527a7e108ae23
SHA15188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012
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Filesize
108KB
MD50760c28d9d4bba78df755da9353d9ed6
SHA1e7ae862324b712a168c4ce7c731d3b9f15f0cca8
SHA25695967927da10556df6fdbb14bc74e4a0c980f33cb44b9d7a6bd4305da8b421bd
SHA512096c596260d09fe630572582c341a89e7e85605781a9cb51a6eb411958e7e4f71bf7e930bbdba5efe49daafa59666664f8c3b3afd3e563a1e496776a5bfd9577
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Filesize
173KB
MD5224b56cb0d388a18fb3ed1146fcf27a3
SHA1dbc2df85dfaf24c0863ffe7e6c1c4728dfab7641
SHA2567d38139299b9118e4a48ccdd12ce869d1563961187ae21c8e55804dbf3fc6a32
SHA51271a224794bc24a3aab035b50635ab90d36789822cca382e598908f14d186e98ea8c65266ecedaa8d6fd36730e2851838d0f9747c809b2fcae0b0d79bfd5d069d
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Filesize
16KB
MD52ca1113107fa8af0453cdddbe9a3551b
SHA1060f984b45eba72c3283cf7299e6e42a086d9bfe
SHA25657a18fef4d421927e1965a286fa6e39e8ed1ea748c3e0554494acbf676ab2e04
SHA512869e0d135253cdf51d95395fd782efc8ce6f04dd28c82f0cba950d1bf47c78bd3cfbb8a4a124c82337e16f5e95761e938b9e71e5d724bbec2b3a0a6fc4541c36
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Filesize
1.7MB
MD51a767207b9f279b066ee528e6fbb55e0
SHA183737766ec897e392d349f5214908d501f506a94
SHA25673df73b48a9a51618d9628529b88b41a44a1c213804df7fc1c80b56e740ae0fc
SHA5126a69ac352648ec3e990185d5e74dd3aa0116e9e18ca6523a973af72bb88c69fc8b12d65d2344832b9185cf4aca12ad58a5c6bfd57ffcbf0c98c8f555fa733a5e
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Filesize
1.7MB
MD59eccb01fd5e6aa747a3b8fcb38173340
SHA177a21894421bbbe4ae767c9b56150c22a380f86a
SHA2563163ad11d263490feeabaf6d1e83a9cd4f5466a031cc012c02bee0212edd09e3
SHA512740be2e7273890531c52d94be49ec71ec7045fd38cfcfd6330951125996266832ed2ac13369d18931e8659b251149f3793a3e1f8c66a8b457063b2083c1788e2