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Analysis
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max time kernel
30s -
max time network
157s -
platform
android_x64 -
resource
android-x64-20240624-en -
resource tags
androidarch:x64arch:x86image:android-x64-20240624-enlocale:en-usos:android-10-x64system -
submitted
10/09/2024, 22:00
Static task
static1
Behavioral task
behavioral1
Sample
7cf9de0bb33002957d7645ba2c7a4f780ec0937fc21f1471c6b665352a04eec1.apk
Resource
android-x86-arm-20240624-en
Behavioral task
behavioral2
Sample
7cf9de0bb33002957d7645ba2c7a4f780ec0937fc21f1471c6b665352a04eec1.apk
Resource
android-x64-20240624-en
Behavioral task
behavioral3
Sample
7cf9de0bb33002957d7645ba2c7a4f780ec0937fc21f1471c6b665352a04eec1.apk
Resource
android-x64-arm64-20240624-en
General
-
Target
7cf9de0bb33002957d7645ba2c7a4f780ec0937fc21f1471c6b665352a04eec1.apk
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Size
1.1MB
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MD5
6b64372da9eb946b68afe29f93988e4d
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SHA1
c6a22ecd0a29ae96ad795480ec75564c7362b562
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SHA256
7cf9de0bb33002957d7645ba2c7a4f780ec0937fc21f1471c6b665352a04eec1
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SHA512
aba562609a6171f8c2b4902989c4528b1df3ee269a1a153171fe5c0601850f19d01cbfd6f7da06f6dea6577f7515f643f161421967d690f7f040b73f4b94afe3
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SSDEEP
24576:QigmO91v2Ow1G02U9+9+lo/beUjFQXML+VghOjaRZjRqybK:QigmYw1GeWFQXML+VsRZsSK
Malware Config
Extracted
ermac
http://91.92.242.166:3434
Extracted
hook
http://91.92.242.166:3434
Signatures
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Ermac
An Android banking trojan first seen in July 2021.
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Ermac2 payload 1 IoCs
resource yara_rule behavioral2/files/fstream-1.dat family_ermac2 -
Hook
Hook is an Android malware that is based on Ermac with RAT capabilities.
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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/nrv.yqmmemf.oh/app_apkprotector_dex/classes-v1.bin 4972 nrv.yqmmemf.oh /data/user/0/nrv.yqmmemf.oh/app_apkprotector_dex/classes-v1.bin 4972 nrv.yqmmemf.oh -
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 nrv.yqmmemf.oh Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText nrv.yqmmemf.oh Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId nrv.yqmmemf.oh -
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 nrv.yqmmemf.oh -
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 nrv.yqmmemf.oh -
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 nrv.yqmmemf.oh -
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 nrv.yqmmemf.oh -
Queries the mobile country code (MCC) 1 TTPs 1 IoCs
description ioc Process Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone nrv.yqmmemf.oh -
Reads information about phone network operator. 1 TTPs
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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 nrv.yqmmemf.oh -
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 nrv.yqmmemf.oh -
Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
description ioc Process Framework API call javax.crypto.Cipher.doFinal nrv.yqmmemf.oh
Processes
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nrv.yqmmemf.oh1⤵
- 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
- Queries information about the current Wi-Fi connection
- Queries the mobile country code (MCC)
- 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)
PID:4972
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
1Input Injection
1Discovery
Process Discovery
1Software Discovery
1Security Software Discovery
1System Network Configuration Discovery
3System Network Connections Discovery
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.5MB
MD579a4680b0f4d5270e41b56096949d1c8
SHA100eef360ba587f685e5f0745526031e1d648d4ce
SHA256b90194b0357d4c06a7519897a6f2937e9f0c11b092391a628ed18c30fdf2629c
SHA51241a3d8c7039a060e28431f840c39403cc2fe5ba91800f27c9313f75f686d4dcf341018d1ce26ce0a5f1e234833339ad8a84feb1c6a1e3da2f42419a9797a36b3
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Filesize
4KB
MD5f2b4b0190b9f384ca885f0c8c9b14700
SHA1934ff2646757b5b6e7f20f6a0aa76c7f995d9361
SHA2560a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514
SHA512ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1
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Filesize
512B
MD58812f4b67d75e240c94dfb4b923e28c9
SHA11c99b00d4a67185a0fb9269ff12f3dd3e6da7e13
SHA2565e55c526973753102004910aa0d8a2b2c6efcc986749370214d7598d02c1e7d4
SHA51219635bb72e8f665dcb801ebe33428eb07bec2f88343e2df4f57461c6662d11b2125ca93e87977d358977cfb3b9fc57d14be64e408143aba70b6327bf50e0e107
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Filesize
32KB
MD5bb7df04e1b0a2570657527a7e108ae23
SHA15188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012
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Filesize
16KB
MD5e3f7bef861d9519eaf73e432cc2d236c
SHA1a1070bbfc65c86ed4cf3656d0179aee8b1c5f81b
SHA2560b23cbd20091628a758a972659fb79b7d77534636969115ac018a0c616ec0b46
SHA512f4a722ffdc7f31f5585320185c99845acd0c1909d89f612ab417cecfe69336520f81157cb10db29dbe54a7121ab1cbbd95e2859a3cb87b869767c79cd42cfb9c
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Filesize
108KB
MD56ef7ccc75474af0c353d2d18da569a3f
SHA15d48a98f52b6c4bb5699797953ea4216c9857781
SHA256b9a9671b463d177cae2a4033da232db033977d3aaf1121f4cbbea996a1098161
SHA512acda48b8bab381e1587f620e45b1d663e1e1d732ddb672b031cd3b4e7d8ff02e7b903f311fb13bf46c349397fb8761fc2c6f1ea0efea2e8299465a96f66d1396
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Filesize
173KB
MD55ede7b83c122764e791be7ee07abfd8a
SHA13a662ef85d8bbbe8f8c370efb9780d8bca31d43e
SHA25603aea8540a4944c7c278879e64dfd04ec5be985d46b2ced032cac10c3040ee84
SHA512efa3c125ee69247d3e7ca452d80c5b72f9e0f79a3d19243f25ebef6aae1abb693b0365e0e151b49dd47f93da01abf88ab111f841b56705a7e9b497e01db685e6