ermac | 099f844f6e9ddc1754bedf2f389e24d2794c85d3bc68adb176465b4d4968553c

Analysis

max time kernel
149s
max time network
158s
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
09-12-2024 22:13

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General

Target

099f844f6e9ddc1754bedf2f389e24d2794c85d3bc68adb176465b4d4968553c.apk
Size

3.4MB
MD5

f7506baec8f59f427f839f9ff1f0bfdb
SHA1

08827dbbaf7a1067179810b48512973a1b2e8446
SHA256

099f844f6e9ddc1754bedf2f389e24d2794c85d3bc68adb176465b4d4968553c
SHA512

23239a09a45c2c884c06352eb705839b5c4bde62dabe18605a9de23fa6f0b5449978c9df0b37b65034fbd2a4fdd2c5965cc0397eea36d1459686b1cc884b4e0e
SSDEEP

98304:t1re8MfHbkaqYsvDJE7D1MZIyRPQru8x1MnaWa/B:m7vbFUbxQru8wnaWCB

Score

10^/10

ermac hook banker collection credential_access discovery evasion execution impact infostealer persistence rat trojan

Malware Config

Extracted

Family

ermac

http://154.216.20.102

AES_key

Extracted

Family

hook

http://154.216.20.102

AES_key

Signatures

Ermac
An Android banking trojan first seen in July 2021.
banker trojan infostealer ermac
Ermac family
ermac

Ermac2 payload 2 IoCs

resource	yara_rule
behavioral1/memory/4246-0.dex	family_ermac2
behavioral1/memory/4218-0.dex	family_ermac2

Hook
Hook is an Android malware that is based on Ermac with RAT capabilities.
rat trojan infostealer hook
Hook family
hook

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.mahabadlar.maruko/app_emerge/QrJR.json	4246	/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.mahabadlar.maruko/app_emerge/QrJR.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.mahabadlar.maruko/app_emerge/oat/x86/QrJR.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.mahabadlar.maruko/app_emerge/QrJR.json	4218	com.mahabadlar.maruko

Makes use of the framework's Accessibility service 4 TTPs 3 IoCs

Retrieves information displayed on the phone screen using AccessibilityService.

collection evasion credential_access

Input Injection

T1516

Screen Capture

T1513

Keylogging

T1417.001

GUI Input Capture

T1417.002

description	ioc	Process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.mahabadlar.maruko
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.mahabadlar.maruko
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.mahabadlar.maruko

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.mahabadlar.maruko

Queries the phone number (MSISDN for GSM devices) 1 TTPs
discovery

System Network Configuration Discovery
T1422

Acquires the wake lock 1 IoCs

description	ioc	Process
Framework service call	android.os.IPowerManager.acquireWakeLock	com.mahabadlar.maruko

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.

evasion persistence

Foreground Persistence

T1541

description	ioc	Process
Framework service call	android.app.IActivityManager.setServiceForeground	com.mahabadlar.maruko

Performs UI accessibility actions on behalf of the user 1 TTPs 5 IoCs

Application may abuse the accessibility service to prevent their removal.

evasion

Prevent Application Removal

T1629.001

ioc	Process
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.mahabadlar.maruko
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.mahabadlar.maruko
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.mahabadlar.maruko
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.mahabadlar.maruko
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.mahabadlar.maruko

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

System Network Connections Discovery

T1421

description	ioc	Process
Framework service call	android.net.wifi.IWifiManager.getConnectionInfo	com.mahabadlar.maruko

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.mahabadlar.maruko

Reads information about phone network operator. 1 TTPs
discovery

System Network Configuration Discovery
T1422

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.mahabadlar.maruko

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.

execution persistence

Scheduled Task/Job

T1603

description	ioc	Process
Framework service call	android.app.job.IJobScheduler.schedule	com.mahabadlar.maruko

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.mahabadlar.maruko

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.mahabadlar.maruko

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.mahabadlar.maruko

com.mahabadlar.maruko
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)
- 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:4218
- /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.mahabadlar.maruko/app_emerge/QrJR.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.mahabadlar.maruko/app_emerge/oat/x86/QrJR.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4246

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Scheduled Task/Job

T1603

Persistence

Event Triggered Execution

T1624

Broadcast Receivers

T1624.001

Foreground Persistence

T1541

Scheduled Task/Job

T1603

Privilege Escalation

Defense Evasion

Download New Code at Runtime

T1407

Foreground Persistence

T1541

Impair Defenses

T1629

Prevent Application Removal

T1629.001

Input Injection

T1516

Virtualization/Sandbox Evasion

T1633

System Checks

T1633.001

Credential Access

Input Capture

T1417

GUI Input Capture

T1417.002

Keylogging

T1417.001

Discovery

Process Discovery

T1424

System Information Discovery

T1426

System Network Configuration Discovery

T1422

System Network Connections Discovery

T1421

Lateral Movement

Collection

Input Capture

T1417

GUI Input Capture

T1417.002

Keylogging

T1417.001

Screen Capture

T1513

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

T1471

Input Injection

T1516

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Downloads

/data/data/com.mahabadlar.maruko/app_emerge/QrJR.json

Filesize
735KB

MD5
e672d159042deb9b092939a60026e265

SHA1
0723f483dd4bd870d5ce37055bd694ecb44d1684

SHA256
f2dba67a5ca79b599ef2cf45c677a0e8eec36b64e951101ef7f4ac4252e4c952

SHA512
aeae98e77d41b5f65fc594c0a36681134607d142de7a50683b7f93e9f848d2542aa86a4a75fa2751fdb63803b5c5874ccdc2adcc054a0297c5af31e06a1029d8

Download Submit
/data/data/com.mahabadlar.maruko/app_emerge/QrJR.json

Filesize
735KB

MD5
ab306c66832dbee950cd8ce2752aa334

SHA1
a18431001db9eeb4e9bc09a2e95b63d99476ec09

SHA256
6ce3e938e15e0860d07fa4cc3590bde4f1de53c527de0dc3f6d5304628057477

SHA512
bead139d6141a94078752116c75e75d156413c8d6f860719f8fa5807f972f9d2acd52f21184c6fa7684626483743f77f27edec9f2bf31f94abecd31ffbbea35e

Download Submit
/data/data/com.mahabadlar.maruko/app_emerge/oat/QrJR.json.cur.prof

Filesize
2KB

MD5
5195f7141d7f59562d7f3469cbb1f54b

SHA1
2fc914e71acf678053a1a05c04cbaec0aecb3271

SHA256
d6c8670207a378afad1b5723e93ec564eb21dd356c5660d2e5ef952307adfe97

SHA512
48493c6b2241bc2f653c4c557eafbb88b81e5d5bf9221a2d436dec2fb3196d3f963efc76db24c3782d85f24c88b504f300beb9cee9794af773b0f8df2f661ee7

Download Submit
/data/data/com.mahabadlar.maruko/app_emerge/oat/QrJR.json.cur.prof

Filesize
2KB

MD5
fe61b37da7f7c587db49a745574bf29d

SHA1
cc8d11ce5119cbb89a1bf39429318f65c79743a1

SHA256
1c15efeb8897b8a13cc589c920cab7ba5682c7ec8433f8e23bceb2701d30fc6d

SHA512
f9e2b51d2124c00c443aaa60ead122a18fedd554ee3fcf56df8ee7b5520bba64ef6315dd92a044a5bc1151943c61e12ae86d924345de0132a47e698739d28ad1

Download Submit
/data/data/com.mahabadlar.maruko/app_emerge/oat/QrJR.json.cur.prof

Filesize
3KB

MD5
1c7f49db5e53275095e55eb131e29fb1

SHA1
438596e805f8720bfe17d835469124045e347417

SHA256
14965197de33bec2810c209d2d05d8dea1aad84417dea0653f9682fb5f0e762c

SHA512
2a16d0bbd015faeee55ff9e785c96425d7c814203fb930b83b8b7422e48b91a8e71560d84f1290533e847586f90b0c30c1666583ac0f95a3f7cec20bbe66a21f

Download Submit
/data/data/com.mahabadlar.maruko/no_backup/androidx.work.workdb

Filesize
4KB

MD5
f2b4b0190b9f384ca885f0c8c9b14700

SHA1
934ff2646757b5b6e7f20f6a0aa76c7f995d9361

SHA256
0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

SHA512
ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

Download Submit
/data/data/com.mahabadlar.maruko/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
1484fd1ffcb842ad883c939f6abea525

SHA1
6089153501469c41fbfec5d5c01afe03c112dda6

SHA256
1f33454b792838cd5e928cc9362933e661676f6bf0265dcd82b1d6be6a8939a0

SHA512
aee042b0cce1ee796c1a03b9346ebbf5d6dc0e275fbb0467f94645ddb501b96292a62f41b2ab268ede36e67b4489449258dbbafae997bcc110b40acdfda1ee8b

Download Submit
/data/data/com.mahabadlar.maruko/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/data/com.mahabadlar.maruko/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
1a6ae6b0179a99b1208f32b757874366

SHA1
0c9c5a1e9019e285a9eec25d3056aec84340cf0e

SHA256
85cdf3e3b8afaf12022b04553ad3a96670f93b829833896cb2f3e148143de296

SHA512
ce80a65ed482bf8f0697d9a765c7fc0798e945dcbf85e6c91a22d873e19b4266831c1b15600ee6925a3f10e372b5ac4eb70a6889eb190cd48bf102289da9daf2

Download Submit
/data/data/com.mahabadlar.maruko/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
8c255b8ca29b657779feb5899397e276

SHA1
c99052eaf858cd7e5cefd04ad2a6123e4d4bf3ed

SHA256
5c06c50f9b4dca320a22697b3de3c05140c36bae904159008c605c4dd1ded58a

SHA512
50e0b76069eba667d69dbb11d0c8c15ea694bf462dad07a3fa2670acfec1bac3a2184615a7c1c7388b051557bb7ffde605e398218f2e0ee378cddb209e475eab

Download Submit
/data/data/com.mahabadlar.maruko/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
e9ab1ac28be83d8205e24884ac9a4a53

SHA1
42e5792d0db82c8a0cba802ce0dc3dfba2be5b1e

SHA256
19566282c94e93787807236670b5d112d0b566aea6bcc057a43e65e7154c4081

SHA512
25010b93791a38b842a35ccc20d0ae3829f27a632e05b7bdce9da7a92effbe12ae707da6d9d077b70561c88e420f7b6a69b2827458900b4311e031bfcbfe3efe

Download Submit
/data/user/0/com.mahabadlar.maruko/app_emerge/QrJR.json

Filesize
1.7MB

MD5
ac1a36e087a4f1f5116c8867f7221e73

SHA1
008e028b7a56864773ec393bd7ad3a955b31dbfe

SHA256
be2b50437398d4af8eccc33a42f42b0419a62c606b45bb0e09a619ce09920064

SHA512
78a52d81c343ae7790048be25c5916d435ab1978baa2a5c9dc15226c9b154b2143d4a54ecf008fd7cf9d4ae9000f4c759b9052e98e5a04b235728524084a4d3e

Download Submit
/data/user/0/com.mahabadlar.maruko/app_emerge/QrJR.json

Filesize
1.7MB

MD5
dd139ea50df6f15f4fd6ef669b88fe93

SHA1
014a8feb780e713bbdb83bf7d2b0ffaace444a89

SHA256
06ce1d32cfb90bc763f69618a4d23759e5a61705599dedc2a64f6fcf4b8e7a4a

SHA512
d073eff575460d171d75d0795516ce3addd46669a909903b0baf515e74b50a72c218d0bb952f4c47cb1c05c3b296f0e94e235660b8e61dd51444bf5ce6948603

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads