ermac | b8b2648f1d488de58654c15020ed43ae99f66e700872fbdadcf5c6ee11e301ec

Analysis

max time kernel
147s
max time network
156s
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
17-01-2025 22:01

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General

Target

b8b2648f1d488de58654c15020ed43ae99f66e700872fbdadcf5c6ee11e301ec.apk
Size

3.1MB
MD5

aa25816e1d26df76db196049b213db98
SHA1

1d1d95bd32113f695f250113f5cfc28a6427f5f4
SHA256

b8b2648f1d488de58654c15020ed43ae99f66e700872fbdadcf5c6ee11e301ec
SHA512

b949d718b98e75652dfff52967f9c1910b864770d96226b730a1478e98856107195def608e58aafcee4e245c9c1588c0a8c90b7de7ebe13826d0eb9604795856
SSDEEP

49152:ycpZD2eZBfQ7U9vuPQXrgkwjGzVI9r4z975lYWEhwGxOPmg1H:ykZqKBYIJuPi4qI14J7kWEhHOpH

Score

10^/10

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

Malware Config

Extracted

Family

ermac

http://asoutlaverdadfasd.pro; http://asoutlaverdwwear.pro; http://asoutlaverdsadfaf.pro; http://asoutlaverdhhtrsd.pro; http://asoutlaverdcgahff.pro

http://asoutlaverdadfasd.pro

http://asoutlaverdwwear.pro

http://asoutlaverdsadfaf.pro

http://asoutlaverdhhtrsd.pro

http://asoutlaverdcgahff.pro

AES_key

Extracted

Family

hook

http://asoutlaverdadfasd.pro; http://asoutlaverdwwear.pro; http://asoutlaverdsadfaf.pro; http://asoutlaverdhhtrsd.pro; http://asoutlaverdcgahff.pro

http://asoutlaverdadfasd.pro

http://asoutlaverdwwear.pro

http://asoutlaverdsadfaf.pro

http://asoutlaverdhhtrsd.pro

http://asoutlaverdcgahff.pro

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/4280-0.dex	family_ermac2
behavioral1/memory/4252-0.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.koyogohumanuda.xifami/app_inside/eghkBgk.json	4280	/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.koyogohumanuda.xifami/app_inside/eghkBgk.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.koyogohumanuda.xifami/app_inside/oat/x86/eghkBgk.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.koyogohumanuda.xifami/app_inside/eghkBgk.json	4252	com.koyogohumanuda.xifami

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.koyogohumanuda.xifami
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.koyogohumanuda.xifami
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.koyogohumanuda.xifami

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.koyogohumanuda.xifami

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.koyogohumanuda.xifami

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.koyogohumanuda.xifami

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.koyogohumanuda.xifami
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.koyogohumanuda.xifami
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.koyogohumanuda.xifami
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.koyogohumanuda.xifami
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.koyogohumanuda.xifami

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.koyogohumanuda.xifami

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.koyogohumanuda.xifami

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.koyogohumanuda.xifami

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.koyogohumanuda.xifami

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.koyogohumanuda.xifami

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.koyogohumanuda.xifami

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.koyogohumanuda.xifami

com.koyogohumanuda.xifami
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:4252
- /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.koyogohumanuda.xifami/app_inside/eghkBgk.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.koyogohumanuda.xifami/app_inside/oat/x86/eghkBgk.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4280

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.koyogohumanuda.xifami/app_inside/eghkBgk.json

Filesize
691KB

MD5
83579a948b7387e5e11a0988ab84137a

SHA1
c143c4c4084bd568cf1073718c874b216a138887

SHA256
c9bd66a9b63e63024342db7d4c5039f3cde3d53b2ae5c27f93a8cea3f3551a7c

SHA512
c724d6e4c8b14e4abac6921afaa8e7f7eaa4f36799d0c1d6d44a030375cccf2ae98b9dd921289c6898413140fc22c30d6adbfb1c68d15ab6de5a48b291e8098e

Download Submit
/data/data/com.koyogohumanuda.xifami/app_inside/eghkBgk.json

Filesize
691KB

MD5
436fc951f37101350d119ba657115878

SHA1
5fefa78fea5fa5255f0e3a9a236246842230a610

SHA256
98a5dd17de6e0073156c8a015f396db93b6eeef5d9998409d2c7007bc282e206

SHA512
a2ec95374cbf2280a97f0c7dec9ea03e814bec7729e58ddd7da9a8f1b2b5b3533971bc4116b4197bed6c249890241264515d48f23ebeb1628fb26d6e67c40639

Download Submit
/data/data/com.koyogohumanuda.xifami/app_inside/oat/eghkBgk.json.cur.prof

Filesize
2KB

MD5
fa3dde2cb707b3e2f31386293d091b3f

SHA1
0379d37ce5fd8fc0f19266ae483cfe225c998742

SHA256
6823d6cf10b843519bc961ec8d74a1a5404f35ef8125ce9aec04cdb6cf2f31f4

SHA512
146296bedbdd9004fd5f5448ee90407f89829d53e88cc4606f3b1c460c174bcef692fffff0482e2472f8da394aff713d52304e01c0b265105a5ba7f0307909f8

Download Submit
/data/data/com.koyogohumanuda.xifami/no_backup/androidx.work.workdb

Filesize
4KB

MD5
f2b4b0190b9f384ca885f0c8c9b14700

SHA1
934ff2646757b5b6e7f20f6a0aa76c7f995d9361

SHA256
0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

SHA512
ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

Download Submit
/data/data/com.koyogohumanuda.xifami/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
fdeb01e302d1bb1b343d33cbcc65d1d7

SHA1
d1a54fcd7ea0ac43726019409561364cbb010b9d

SHA256
0a052d28a247fd8c4f1a970a9b5f3a79557e5591b5e21ab2453b8647cb5eacc8

SHA512
209f4e160e65e588b4354a0ff648c5e59ca9c40a48538430e954909ba96c3abaa2b6fc3fe9fb17b0d72e10a10341922df4a8d03fddbbddf830a724b01bd10a53

Download Submit
/data/data/com.koyogohumanuda.xifami/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/data/com.koyogohumanuda.xifami/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
5d1204ab71ed7abc5cbfa87fafd33aba

SHA1
e13b4c7b94ba76ee629bcc557b5825f9c357d90c

SHA256
1e22431137d4d12f932ee55706dae032aa703ce9a262c7f95120d084f991b5fc

SHA512
23529830d52168c48e1d95c8f1d63b3185743f6ff7bc34286b682524333f810a30359640f441e0344db64be50c691c12a5c23df055c324f0f653b942857dd330

Download Submit
/data/data/com.koyogohumanuda.xifami/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
6b5469dcd2d0bbb07a68aa7b13dbc5b3

SHA1
43bb55083328e5cd1d0491a96be88a3a7023f279

SHA256
8499f2dca151452299494ecb048b9a5b17698a0f6779adf192e5f4333483aae3

SHA512
5135f3091227ac7d4f535c6048d0e97757f8e2dace2d2256a54361fc90c8e33ab969bccba1bdf5c6c24618cdc297b4d1ce18a557cef5877f9b90f3864c5a10e3

Download Submit
/data/data/com.koyogohumanuda.xifami/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
cdfa42bc567ca86f3d4f918c1f2ef960

SHA1
3d56c40da0144930fafc16fc5d67979f316d26cb

SHA256
fefc5d8291d8cec6043843314d8096d2df1e6873e12b4097e086659f7f8d5ebc

SHA512
ea4a85cde38b026b3df3669244b6343b6dd907ea4892a7d562e820c4b06ce51ea704e0620229ba2eb634bb5b8af41055e2cb27bd973e9a5fdd47ec8858ae4edb

Download Submit
/data/user/0/com.koyogohumanuda.xifami/app_inside/eghkBgk.json

Filesize
1.5MB

MD5
a2706006620d35e294d980cc42d0077f

SHA1
b99f685030f32af718d14395d881fc7c3a536407

SHA256
d63dc63f5cf6ff6ac010d8e01c6b61710dffaa67fea45d2cf49539bef47cad47

SHA512
45e657fb3ba50c90cda99bc3f396d0cefceecb3eaa82d8e250e5e5507cdfc49303196729c7cb8b367561d100fa53d6bfabc5687c4d0010cc98ef3d9179f8ad66

Download Submit
/data/user/0/com.koyogohumanuda.xifami/app_inside/eghkBgk.json

Filesize
1.5MB

MD5
40555b26c66b2a59ab442b8515a8cd40

SHA1
1d0b53d505841c9039e10dc6983bb06943c43148

SHA256
42bea2c7a4f0d1ba9bd2a9ec647d4976f7472b6767499cf954c7a7ce94b58fd7

SHA512
a54655b02d1784251bc74cfa2e72c0557debb7db4a119c17b9a3fe52036071642618718207893902930f35582cb8308e215c226769fa06f680caaf1d3ae68a00

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads