Analysis
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max time kernel
152s -
max time network
159s -
platform
android_x64 -
resource
android-x64-arm64-20240221-en -
resource tags
androidarch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20240221-enlocale:en-usos:android-11-x64system -
submitted
25-02-2024 22:01
Static task
static1
Behavioral task
behavioral1
Sample
8c321ba5108cd655420d2f9f1131629410beaffded8aa7c104357c07d8d6c57a.apk
Resource
android-x86-arm-20240221-en
Behavioral task
behavioral2
Sample
8c321ba5108cd655420d2f9f1131629410beaffded8aa7c104357c07d8d6c57a.apk
Resource
android-x64-20240221-en
Behavioral task
behavioral3
Sample
8c321ba5108cd655420d2f9f1131629410beaffded8aa7c104357c07d8d6c57a.apk
Resource
android-x64-arm64-20240221-en
General
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Target
8c321ba5108cd655420d2f9f1131629410beaffded8aa7c104357c07d8d6c57a.apk
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Size
1.0MB
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MD5
aeae1f67dff8477ff0c4776af92140f2
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SHA1
9a505433dd72a80abcc2c6f600c08280b170e656
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SHA256
8c321ba5108cd655420d2f9f1131629410beaffded8aa7c104357c07d8d6c57a
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SHA512
3701c809496c17954dfef2705c563d5ff5d7b1648ba870928099746664a8c8a4576640d58215902ff3a84cd8ac7487a757840ff5b8c4210ce48100d519d8d90c
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SSDEEP
24576:kS9yYo6onqmlIJ2GmSiGW2NDZrZzl3U2ha0GIzHPu:kCRnm6HvBzZpl3U2h1RPu
Malware Config
Extracted
ermac
http://172.214.90.35:3434
Signatures
-
Ermac
An Android banking trojan first seen in July 2021.
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Ermac2 payload 3 IoCs
resource yara_rule behavioral3/files/fstream-1.dat family_ermac2 behavioral3/memory/4441-0.dex family_ermac2 behavioral3/memory/4441-1.dex family_ermac2 -
Makes use of the framework's Accessibility service 2 TTPs 3 IoCs
Retrieves information displayed on the phone screen using AccessibilityService.
description ioc Process Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId com.vunuxogawenezuzo.judano Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId com.vunuxogawenezuzo.judano Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText com.vunuxogawenezuzo.judano -
pid Process 4441 com.vunuxogawenezuzo.judano -
Loads dropped Dex/Jar 2 IoCs
Runs executable file dropped to the device during analysis.
ioc pid Process /data/user/0/com.vunuxogawenezuzo.judano/app_ded/L7iiqH1W7u7TvPX4RXcG8ibqiyGBG4r9.dex 4441 com.vunuxogawenezuzo.judano /data/user/0/com.vunuxogawenezuzo.judano/app_ded/L7iiqH1W7u7TvPX4RXcG8ibqiyGBG4r9.dex 4441 com.vunuxogawenezuzo.judano -
Acquires the wake lock 1 IoCs
description ioc Process Framework service call android.os.IPowerManager.acquireWakeLock com.vunuxogawenezuzo.judano -
Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
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Requests disabling of battery optimizations (often used to enable hiding in the background). 1 IoCs
description ioc Process Intent action android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS com.vunuxogawenezuzo.judano -
Uses Crypto APIs (Might try to encrypt user data) 1 IoCs
description ioc Process Framework API call javax.crypto.Cipher.doFinal com.vunuxogawenezuzo.judano
Processes
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com.vunuxogawenezuzo.judano1⤵
- Makes use of the framework's Accessibility service
- Removes its main activity from the application launcher
- Loads dropped Dex/Jar
- Acquires the wake lock
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- Uses Crypto APIs (Might try to encrypt user data)
PID:4441
Network
MITRE ATT&CK Mobile v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
134KB
MD53e6e68cf91ff7c721d4ef537808e5239
SHA1733f896fc38cb711d7ac7131ca2a76e709bac9d7
SHA2563d20f96a1cc8a51ed0afe61c934b332fcf1f1e327e710883afd1506720d9a937
SHA512d73ebd8e78e3988afb7eadc00cb4e7747997fe87a36ba102948e913e65efe88fe3bfcdf7fead77d25a96d2b5abaccb1da19e2ba77fd9c83714e92887fd77af8a
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Filesize
75KB
MD5a4252c6d429666c8a51e6daa08009d74
SHA13b090e44b93178fbccba07f7a6324126010e548f
SHA256040805fd98c8747be58b734ecde7f0363332aaeb00e99e819a2a938c352bd292
SHA51224e69d85abbe2c51afbde2058e26f357d11652f7d0137e578c0e9da0851073b813daa530642304b56f0c09f09ca921c40e6034b0909bdf0a058394a7b80c3622
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Filesize
70KB
MD5a9dc8d0e656b7dc62b1535cacda1b980
SHA173071e873b76d0e951df45a75578310dfe05a83f
SHA2562c0609b2f9d5bc710889d8b8cd1b46dd218ee80122e3ff0b376dccf70afc131b
SHA512e68e86b359820802b2691261c155b6735b32ddebe987e9428ed1307138fc3ff5e7cf08d211a5f349eb30606364f452ce26550c5d240acaa29ece75a8d115618c