ermac | 95a9a3138aa478f0686bc36adf381a2bac3a6f31293061aabac856f43d057c48

Analysis

max time kernel
29s
max time network
31s
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
21/03/2025, 23:53

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

95a9a3138aa478f0686bc36adf381a2bac3a6f31293061aabac856f43d057c48.apk
Size

18.0MB
MD5

cee85954a7ef079b0c154f6b5bf96e84
SHA1

b2074aeab78e029b63d5aeb5436f31a26c2ac1f8
SHA256

95a9a3138aa478f0686bc36adf381a2bac3a6f31293061aabac856f43d057c48
SHA512

484c2c6a34c9cc0879cced18926bfd00820aff5d28d025ee9eefe23c972e18c93766f22b07137f80c749a3180ff5666cd18427439a2323d018e6fd3eebb0d605
SSDEEP

393216:ugjuCiPE8U46gtpMAuGw8JaJCMzDIwDBbVAH6J+Kh:XuCl746mptuGwAQDDDAKh

Score

10^/10

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

Malware Config

Extracted

Family

ermac

http://95.215.108.115

AES_key

Extracted

Family

hook

http://95.215.108.115

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
behavioral2/memory/4439-0.dex	family_ermac2
behavioral2/memory/4415-0.dex	family_ermac2

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

Removes its main activity from the application launcher 1 TTPs 1 IoCs

stealth trojan evasion

Suppress Application Icon

T1628.001

pid	Process
4415	com.tencent.mm

Loads dropped Dex/Jar 1 TTPs 4 IoCs

Runs executable file dropped to the device during analysis.

evasion

Download New Code at Runtime

T1407

ioc	pid	Process
/data/user/0/com.tencent.mm/app_float/ae.json	4439	/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.tencent.mm/app_float/ae.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.tencent.mm/app_float/oat/x86/ae.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.tencent.mm/app_float/ae.json!classes2.dex	4439	/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.tencent.mm/app_float/ae.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.tencent.mm/app_float/oat/x86/ae.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.tencent.mm/app_float/ae.json	4415	com.tencent.mm
/data/user/0/com.tencent.mm/app_float/ae.json!classes2.dex	4415	com.tencent.mm

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

Retrieves information displayed on the phone screen using AccessibilityService.

collection defense_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.tencent.mm
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.tencent.mm
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.tencent.mm

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.tencent.mm

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

System Network Configuration Discovery
T1422

Reads the contacts stored on the device. 1 TTPs 1 IoCs

collection

Contact List

T1636.003

description	ioc	Process
URI accessed for read	content://com.android.contacts/data/phones	com.tencent.mm

Acquires the wake lock 1 IoCs

description	ioc	Process
Framework service call	android.os.IPowerManager.acquireWakeLock	com.tencent.mm

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.

defense_evasion persistence

Foreground Persistence

T1541

description	ioc	Process
Framework service call	android.app.IActivityManager.setServiceForeground	com.tencent.mm

Performs UI accessibility actions on behalf of the user 1 TTPs 30 IoCs

Application may abuse the accessibility service to prevent their removal.

evasion

Prevent Application Removal

T1629.001

ioc	Process
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tencent.mm

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.tencent.mm

Reads information about phone network operator. 1 TTPs
discovery

System Network Configuration Discovery
T1422

Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs

defense_evasion

User Evasion

T1628.002

description	ioc	Process
Intent action	android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	com.tencent.mm

Requests enabling of the accessibility settings. 1 IoCs

description	ioc	Process
Intent action	android.settings.ACCESSIBILITY_SETTINGS	com.tencent.mm

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.tencent.mm

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.tencent.mm

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.tencent.mm

com.tencent.mm
1⤵
- Removes its main activity from the application launcher
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- Queries information about running processes on the device
- Reads the contacts stored 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
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- Requests enabling of the accessibility settings.
- 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:4415
- /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.tencent.mm/app_float/ae.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.tencent.mm/app_float/oat/x86/ae.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4439

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

Hide Artifacts

T1628

Suppress Application Icon

T1628.001

User Evasion

T1628.002

Impair Defenses

T1629

Prevent Application Removal

T1629.001

Input Injection

T1516

Credential Access

Input Capture

T1417

GUI Input Capture

T1417.002

Keylogging

T1417.001

Discovery

Process Discovery

T1424

System Network Configuration Discovery

T1422

System Network Connections Discovery

T1421

Lateral Movement

Collection

Input Capture

T1417

GUI Input Capture

T1417.002

Keylogging

T1417.001

Protected User Data

T1636

Contact List

T1636.003

Screen Capture

T1513

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

T1471

Input Injection

T1516

Replay Monitor

Loading Replay Monitor...

Downloads

/data/data/com.tencent.mm/app_float/ae.json

Filesize
4.6MB

MD5
75fa606b2ba5ee9adb624489eef627af

SHA1
26d1fdeb0dbeb669f5b011bbd1adb458d190e044

SHA256
bdf758d57938b0be1e478e1c667e7e7047f1b382d4688bc3469166eda3b76913

SHA512
e329f0e665f665b294a0dd1c0b23715a3969959871675fdcb33ab2e12cf2956ae174c23d92898fc8383aa19b5a8a4930a7b38adbe6ca75bbf1e24cb7e6ef205e

Download Submit
/data/data/com.tencent.mm/app_float/ae.json

Filesize
4.6MB

MD5
5da1dc144fe6be7e31699d25eec3106d

SHA1
484b172b3c81b730d8eace4d383fe40cfbe0f022

SHA256
c4eb9a17fcad492854a115259ebd3ecb71a8d3a5b256fbfa93cc387f20353174

SHA512
76f72d016fe4ddb9934d4edfd85daf1a5df983993b57d1f26a06679c3e3b9f1e9199a36ff51c85381841d572fa273303dec0410e5db8c1850e4149c00ee64c3f

Download Submit
/data/data/com.tencent.mm/files/profileInstalled

Filesize
24B

MD5
4362f84e443ee9fa79e863d45c71b1a4

SHA1
8471feb4326ab8ae85c1b75ba10e5cc4cd0c58fe

SHA256
f324cb78fafa3fb31d4bb45f1cf930ec3b04960c61144a1b8eabbded52ee6b50

SHA512
ae016764a7361f39d79c084dbc1dc54f1731b2fdff85011ffdec34aea4d67438bd30903c95ca80e1792bfd3d55dc22bcbf73b05a0a610a412affebf113ea6297

Download Submit
/data/data/com.tencent.mm/files/profileinstaller_profileWrittenFor_lastUpdateTime.dat

Filesize
8B

MD5
c20b8f0602a96e5a34976f2098be6e62

SHA1
509a1b0352d341bb9b58e39550ca8a37d6504a54

SHA256
2822fe91a5d94b283080927117a81d3c6f85d1fa8f202836a5e9b11db11c4f26

SHA512
9add076af599ebfbdb6c1946d6325b1bcf75f16dcd307449faa3aba494bd51c2ec5a4885e242377380eb3428c9599b08f0e1d15b5edeaa026a9285b9dae5b8cc

Download Submit
/data/data/com.tencent.mm/no_backup/androidx.work.workdb

Filesize
4KB

MD5
f2b4b0190b9f384ca885f0c8c9b14700

SHA1
934ff2646757b5b6e7f20f6a0aa76c7f995d9361

SHA256
0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

SHA512
ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

Download Submit
/data/data/com.tencent.mm/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
1cba7919218ea7b30c2040813074ffea

SHA1
f71ff8297a30c913c7175057cada6a0b054b8a0f

SHA256
984122499eeda85859f172ea5df2cf789b9144abd1262ebf1df1c1e58f92aa19

SHA512
6253d007201f08c6716fdfe6d60177a3ee0674ae690743db653c3393fc293ae4b14899b8a42374149975a5463843fb92e2614ee60dc8bae7d73ed782dfeb9306

Download Submit
/data/data/com.tencent.mm/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/data/com.tencent.mm/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
24eebfb24092455dcbe09c08dec00934

SHA1
7753c1a485955f0bf39046e874b9357ec81c1ee7

SHA256
d2a5a24c01abb7dde1b48dd66f245dc3b13eb24fe4309a48deae35d3174cacd1

SHA512
490187dd188b3ee3c9449b7443163c5163118e42db6a9cacdc35d496d5c8b8e624ec33867097ec000a74e24ce53722d8c175ae5114d301e8de7b68087b75ec54

Download Submit
/data/data/com.tencent.mm/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
899a9d9ca495c75474b94c87ec8f63bb

SHA1
519b4a4db79a50ef452923d7e2fc79fdc4514bd3

SHA256
89ce5e6203a1da40cc8e7e785645314fd134d9b762fc26d0d404c790423b3413

SHA512
65b15a32b263b551de0a54497f8aafd63d5c6339697153f06ef25afa2ec7a6423890459d12f99bf0f3c6b65a94cc74d623fe5104ec275b662c656eb5afa88630

Download Submit
/data/data/com.tencent.mm/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
ad81bdc5cfa30016e14568047a939a72

SHA1
83a3c87a4fa417f4ea120a773429d29f767a103f

SHA256
a874a0cc6d57045dc296714ad851580704f794cec458f49703b46fd7c1d951d4

SHA512
cc9ee068be48f253da5be7dde106769425c4076e0089b4e51bb87df8ebceead7625db9391a1e7621b5f2034672afa4bfc046e73d57c5826434d48e69450d4918

Download Submit
/data/misc/profiles/cur/0/com.tencent.mm/primary.prof

Filesize
368B

MD5
25fc457ce8c595c98e5ec383a84d613b

SHA1
e332e8511d36a56fae8f27934081a8c9aee65fda

SHA256
c0ff0f407527f935d6c4b478d77b8c862f0907f7b330b893a037fdfc6d759e59

SHA512
006f53108efae02d17051bcf17af404ee7490c808ab1ea89dfc5b81eb7024318d1edaf083f54c516357cb06b8066d132593130b20313842367c52b7cf2399f48

Download Submit
/data/user/0/com.tencent.mm/app_float/ae.json

Filesize
9.6MB

MD5
222c354adf90f1e242936be0237e4029

SHA1
8be78a3f4eb555c11a12eecb5019f8866a98e582

SHA256
1fa17134dd66b92e018201cad36eb4d30d60ceda6dd6e3957e1edb107de96507

SHA512
af94d646ee705a80023f43543d063afe4403a0451ecd7dda0e4e0b9a39790d714ced096cb8503bbffbb0a50628994dca50d63d063fe2ccfb36cc056a831749fe

Download Submit
/data/user/0/com.tencent.mm/app_float/ae.json

Filesize
9.6MB

MD5
2f1cbfd8f5d1d4bd5c56b5f7554594c8

SHA1
3426b8c27135ce94604a651fb1872a2145f26562

SHA256
523b57f3022a876df57f98a418f20af69088843ef32a3e97a6b3548a64c5b416

SHA512
80b0b43db36215c70e5ad5cde7676d364b0bea5885cc219e86b29d9f651df9bda4fcae5809bed8b3c268bbaf42ed225617a194c25386376ec199c5eb4fd4e9da

Download Submit
/data/user/0/com.tencent.mm/app_float/ae.json!classes2.dex

Filesize
2.3MB

MD5
63e2bb7759776b08b080cfafbc0c3e74

SHA1
049ac8abb6f03be7f5fd4cb14082ca82d3cf3e57

SHA256
3d6dce31a7c724e51c9b771a14bcc75de5d738e3f68c3b72684979f3217cb52f

SHA512
fee3f3715f68c94f215232b8e5bcecf50ee5069185bf9f615d0c5b6b14332a4cdd6705577f285c312a4922e0fbebbca09f9ec52c1389851e1b59e11c8d6db51f

Download Submit
/data/user/0/com.tencent.mm/app_float/ae.json!classes2.dex

Filesize
2.3MB

MD5
8a23a0d9bb51f6c9b1f787fe3659d491

SHA1
e0a66629741d1008f450c2ed7983f63c94dfc6b8

SHA256
9d042a053688e8f020530fea0e2b994e4349d941501c2474349215b7361e503a

SHA512
9d49e3351dc1780eb0fae2e680534d4e62ec7b1322abe234a69b786da869ed67a53a75b8026b7fb280b2accab9995b8ca590e4389e0ee76baab4d2712318ca95

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

Loading Replay Monitor...

Downloads