ermac | 92fed72453023e0d7a27b471272f8511d2beb144793af9dfffa3caf6f5994261

Resubmissions

04-02-2023 23:04

230204-22qvwsfa39 10

04-02-2023 23:03

230204-21s9maac8z 10

Analysis

max time kernel
514819s
max time network
168s
platform
android_x64
resource
android-x64-arm64-20220823-en
resource tags

androidarch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20220823-enlocale:en-usos:android-11-x64system
submitted
04-02-2023 23:04

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General

Target

ermaccc.apk
Size

2.4MB
MD5

c8cdf4ef2c61348d36ef495c64532dbe
SHA1

3770da70850a16ce4b07b6cca55870b312d419ae
SHA256

92fed72453023e0d7a27b471272f8511d2beb144793af9dfffa3caf6f5994261
SHA512

df9ffafc2a583633c702f8957e32a032897820639d6e52fd12442c9f42d2a208f9df5f262707d3615836a62203599ba0cbfb5c75359a891a64ac5f974d2aac5d
SSDEEP

49152:X7MG0EBb3mw9Nl7YwH864fz0Z3/D2z8YoMWy6L4cpjjRl:rMkPNdxpvqIYPWy6pRl

Score

10^/10

ermac banker evasion infostealer ransomware stealth trojan

Malware Config

Extracted

Family

ermac

http://193.106.191.116:3434

AES_key

Signatures

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

Ermac2 payload 1 IoCs

resource	yara_rule
behavioral3/memory/4303-0.dex	family_ermac2

Makes use of the framework's Accessibility service. 3 IoCs

description	ioc	Process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.nopufepomico.retiti
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.nopufepomico.retiti
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.nopufepomico.retiti

Removes its main activity from the application launcher 2 IoCs

stealth trojan

pid	Process
4303	com.nopufepomico.retiti
4303	com.nopufepomico.retiti

Acquires the wake lock. 1 IoCs

description	ioc	Process
Framework service call	android.os.IPowerManager.acquireWakeLock	com.nopufepomico.retiti

Loads dropped Dex/Jar 1 IoCs

Runs executable file dropped to the device during analysis.

ioc	pid	Process
/data/user/0/com.nopufepomico.retiti/app_DynamicOptDex/wqtACE.json	4303	com.nopufepomico.retiti

Queries the unique device ID (IMEI, MEID, IMSI).
Reads information about phone network operator.

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

evasion

description	ioc	Process
Intent action	android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	com.nopufepomico.retiti

Removes a system notification. 1 IoCs

evasion

description	ioc	Process
Framework service call	android.app.INotificationManager.cancelNotificationWithTag	com.nopufepomico.retiti

Uses Crypto APIs (Might try to encrypt user data). 1 IoCs

ransomware

description	ioc	Process
Framework API call	javax.crypto.Cipher.doFinal	com.nopufepomico.retiti

com.nopufepomico.retiti
1⤵
- Makes use of the framework's Accessibility service.
- Removes its main activity from the application launcher
- Acquires the wake lock.
- Loads dropped Dex/Jar
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- Removes a system notification.
- Uses Crypto APIs (Might try to encrypt user data).
PID:4303

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

/data/user/0/com.nopufepomico.retiti/app_DynamicOptDex/wqtACE.json

Filesize
449KB

MD5
ff2a4fbcc8b32e9d4a12f2f96e008fbc

SHA1
9b512f6f4b5e496576ef12bdd7d7f01ed683fbf4

SHA256
e0f76feb4c80e41f532c6fc160a58722b54206176c7e8ac35c02d6cdc6221347

SHA512
dfc286249d767ca9af05b38936006c1696e4bd820937a9fac1d58d35c2d7d5fc1c3f12c2735178e4728570449998894716ec4d800c8569c7adfa71d14b089126

Download Submit
/data/user/0/com.nopufepomico.retiti/app_DynamicOptDex/wqtACE.json

Filesize
885KB

MD5
0d24c5e718654b293415a31277b680ef

SHA1
fc99fd4dea5730117a2185d4648b0731a50f7b43

SHA256
824f1fa6ac7729f3dd277066e6e02bf8fe529d62c5a1382c0ad749e6532f6ee1

SHA512
744981bcfe4989704f7848d703812bb38cc3889f45ae4d63b4707bfcfdb3d176ce1f3cac3e571db95b5c1c8a560d71d347e0812887dca6bf8c0df0f54d700da5

Download Submit
/data/user/0/com.nopufepomico.retiti/app_webview/Default/GPUCache/index

Filesize
48B

MD5
6d7d499960179766cd4261d12dacc411

SHA1
e6f8553b0015e12b23cc551afe98763f3b1c9bed

SHA256
c96ac03cfdbc6f4c1bdcdf764f1a6573f852e7aae5ef405969516b93ed271182

SHA512
6526c668477a01a850b8757b77dd3e7be27ad1991f5cf777685efcb03a21f31b71f6eae00f326931599baae4b16360e33e3d0f2894f1b2c1753391df02a14547

Download Submit
/data/user/0/com.nopufepomico.retiti/app_webview/Default/GPUCache/index-dir/temp-index

Filesize
96B

MD5
8b8712ae7316a491997d0f51c6d2d9c0

SHA1
53909520232f348845aaed436b2220e679abe7fe

SHA256
62e30aedd3caef8b3b1d864ec5d04650c111e0995bb7cb54b501e6e49681fede

SHA512
31bf679095dbfeba47c7bd9c26c0b798decb73468be55ad703dfae986257a6a88685909f6791ca2231be23219cb8fb29eff1b2bcacb4bb5ed554be150aead204

Download Submit
/data/user/0/com.nopufepomico.retiti/app_webview/Default/Session Storage/000001.dbtmp

Filesize
16B

MD5
46295cac801e5d4857d09837238a6394

SHA1
44e0fa1b517dbf802b18faf0785eeea6ac51594b

SHA256
0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

SHA512
8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

Download Submit
/data/user/0/com.nopufepomico.retiti/app_webview/Default/Session Storage/000003.log

Filesize
61B

MD5
9f7eadc15e13d0608b4e4d590499ae2e

SHA1
afb27f5c20b117031328e12dd3111a7681ff8db5

SHA256
5c3a5b578ab9fe853ead7040bc161929ea4f6902073ba2b8bb84487622b98923

SHA512
88455784c705f565c70fa0a549c54e2492976e14643e9dd0a8e58c560d003914313df483f096bd33ec718aeec7667b8de063a73627aa3436ba6e7e562e565b3f

Download Submit
/data/user/0/com.nopufepomico.retiti/app_webview/Default/Session Storage/LOG

Filesize
135B

MD5
653fa5c18120834fe20c45ed63988734

SHA1
29ac91d49c535f1ac2117f3b8b882af427d7fd3c

SHA256
2a30d9fa9c847d11f031fb34db4ae1ff1de2e81d32ac046a1988d649efe144bd

SHA512
541adb6d8bf87a9659fa5245c248adad7257b61d5f8aa1a4f94a3b09552c4913c2c55b3959cb40bec11d2cd87877e21a8a32d0256510787b9a3c2234d02aee6c

Download Submit
/data/user/0/com.nopufepomico.retiti/app_webview/Default/Session Storage/MANIFEST-000001

Filesize
41B

MD5
5af87dfd673ba2115e2fcf5cfdb727ab

SHA1
d5b5bbf396dc291274584ef71f444f420b6056f1

SHA256
f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4

SHA512
de34583a7dbafe4dd0dc0601e8f6906b9bc6a00c56c9323561204f77abbc0dc9007c480ffe4092ff2f194d54616caf50aecbd4a1e9583cae0c76ad6dd7c2375b

Download Submit
/data/user/0/com.nopufepomico.retiti/app_webview/Default/Web Data

Filesize
120KB

MD5
a48cd9324b1f8754b07f00d863b840f3

SHA1
11c6614775b35a58f440971dfc87c8aaac6d6173

SHA256
8859a216183793485d4699bf69d7ed96904679834188d07b9a70424d47eb1420

SHA512
35fa712f0af4a5eeed7e00e4e59ed5027dc6609d268462fe79d92043be9ae0c5961ce9e1d2f64b1a196c9b6aa6242b8b83817b3ee4c1058596c58a99c45478b1

Download Submit
/data/user/0/com.nopufepomico.retiti/app_webview/Default/Web Data-journal

Filesize
2KB

MD5
8fe27f0ec724d62ea32d712e2b6afac8

SHA1
2c5cb487257dde68fccbaaa9afe56b59119a979a

SHA256
522443c181b473c3dc7d7547db6a3f3703e457028ac8e9699b48778ee6c8b172

SHA512
e64cabfa06d17e2c759e6ff087e87bb2638a58c7a1c0acce3573f6acd5d582891351a9b923f73c603594fee1dcd22deaf790c9619a261448063c5b8286356e6f

Download Submit
/data/user/0/com.nopufepomico.retiti/app_webview/webview_data.lock

Filesize
29B

MD5
94b85b80ee7ece6d0a3733d51d7429bf

SHA1
971d800a3a33cb6de8277dcea8d9a00a56a49697

SHA256
ae0efd2a4962c64ab052f7bf9db4752aa4959cfae186fa6e92a7d044edb15986

SHA512
78bb1bb1e2ffe37db2dead5cc2a3eb05b930422f3a3a88e850495e59710004c5d487e8326994e53e79da44dd4a844907558d17491eae0f44a9c57643f5782bcd

Download Submit
/data/user/0/com.nopufepomico.retiti/cache/WebView/Crashpad/settings.dat

Filesize
40B

MD5
7768180746e5a067a987dff7061396e5

SHA1
3dbe13ce06aadd4472539be39f365620d93d2c92

SHA256
880aa68cbde23c7ea9dbf731b47d019a82df5f236e80b1cd47808350cc4c3ab7

SHA512
57130d7eb0e59877a145a48917167e7969dbf9c967e67ce5bab9ecd83f6532afe9c394908484a54ce5bb0643889e159b1bfc4e0251002870e7bcfbbed2d0249f

Download Submit
/data/user/0/com.nopufepomico.retiti/cache/WebView/Default/HTTP Cache/1dc40779bb8387b8_0

Filesize
426B

MD5
c07d7507c03bb4d253ab2167d85d889b

SHA1
993a9bf6018f41dea1035458c332ead67f421266

SHA256
4a4f655ed5b28fd7cab963e9a28ca012dd589e30a355a792392791933983bbf0

SHA512
d11f76751fb0ab2f1f9dcbf44abed06391301c1d1c005d0fb73ca0dd9caa72bc7c4813e0d41be9feff4ef381e4fe15d55c8ee637c79a18effb57688f9be17193

Download Submit
/data/user/0/com.nopufepomico.retiti/cache/WebView/Default/HTTP Cache/4c70d54a92cdffb7_0

Filesize
514B

MD5
d0493d3c4a8e6137aa8e26ff54a4183d

SHA1
faacc3d8daeef1216f1121f30205ca161f2b80fb

SHA256
20dd7a255bd273d4eee47bf8e6ddcf8f352655a727fe98f0ed86c5ec559d6daa

SHA512
62c54532d430a7a536cd010a72c05c154b343f27713558b78ee604053be95a14722e877ef4d27908e9a63ce2cfbf69adcec213e4ca278e5d8520266e5653bdb2

Download Submit
/data/user/0/com.nopufepomico.retiti/cache/WebView/Default/HTTP Cache/74a997b66d0f8136_0

Filesize
492B

MD5
226f67a9739004e14e2c06efa687f9f0

SHA1
c229ce9617f08c3e7a8206e73448ca0625808bf0

SHA256
800726bcbc84679265d57df2f28839b480f5abd922fb5781e5eef88a8b3146bb

SHA512
715af6a606bc40efb251af04469c84d870752609ffa185dc3f8ed66c6981d14aa614d2fe6e3b5741b99b40e2307fdc9f770c04a1722f2ea45338e8ed6e1da8b6

Download Submit
/data/user/0/com.nopufepomico.retiti/cache/WebView/Default/HTTP Cache/Code Cache/js/index

Filesize
48B

MD5
6d7d499960179766cd4261d12dacc411

SHA1
e6f8553b0015e12b23cc551afe98763f3b1c9bed

SHA256
c96ac03cfdbc6f4c1bdcdf764f1a6573f852e7aae5ef405969516b93ed271182

SHA512
6526c668477a01a850b8757b77dd3e7be27ad1991f5cf777685efcb03a21f31b71f6eae00f326931599baae4b16360e33e3d0f2894f1b2c1753391df02a14547

Download Submit
/data/user/0/com.nopufepomico.retiti/cache/WebView/Default/HTTP Cache/Code Cache/js/index-dir/temp-index

Filesize
96B

MD5
b130e72ddb0d0380f868ff52c0e1da88

SHA1
810ccadadf3d1b62e0078e057961beaead19391b

SHA256
b6038d5be9cd215f877af8cd18f70b38c09751a5acf242556f872f6dcbac36a7

SHA512
2775f8b4f99e3240524ee257d90da113b9cfee15f1f53501a5821f2a37bd0bf0cec18dba3bad0f6f91ae649590c5bd393b295c1b1f3ead5f9c0a91805ea88909

Download Submit
/data/user/0/com.nopufepomico.retiti/cache/WebView/Default/HTTP Cache/Code Cache/wasm/index

Filesize
48B

MD5
6d7d499960179766cd4261d12dacc411

SHA1
e6f8553b0015e12b23cc551afe98763f3b1c9bed

SHA256
c96ac03cfdbc6f4c1bdcdf764f1a6573f852e7aae5ef405969516b93ed271182

SHA512
6526c668477a01a850b8757b77dd3e7be27ad1991f5cf777685efcb03a21f31b71f6eae00f326931599baae4b16360e33e3d0f2894f1b2c1753391df02a14547

Download Submit
/data/user/0/com.nopufepomico.retiti/cache/WebView/Default/HTTP Cache/Code Cache/wasm/index-dir/temp-index

Filesize
96B

MD5
9886614eb08ef971b68a68837012648a

SHA1
fe2e5625dd2bebc373871d0b6ac285c6490f8478

SHA256
73dff96b5e04da5ccd2712ebce9964c52c017ea8b30573fe7b4d95af28e89096

SHA512
4add18d5d0adf01f1377eae77726ebec0f5fc6946ce36950ba1fce89d8ace1e3a6c014175828365cd999a8568ad5d6c0f37a9d70049c24b498806cc6cb273c3e

Download Submit
/data/user/0/com.nopufepomico.retiti/cache/WebView/Default/HTTP Cache/c4c671fa17cf644a_0

Filesize
472B

MD5
b7a81901d138938c2b6345078748c4dc

SHA1
62b46882c34544e670c1ab28f25479f1d6edc4d7

SHA256
21c0cca083c2d97aebf8177cddec34f581ee58381a6cd03f5b1a1005e48535c5

SHA512
90e8904a5c2da01d3cfdf0cc1d75a15e179f6c86bae11c1989d77308e0d798cf20865718a7b8fed0a34f2d03e06fdefe1ac8e4cd7a9f3c68960265e2d9e69dec

Download Submit
/data/user/0/com.nopufepomico.retiti/cache/WebView/Default/HTTP Cache/db84ef7c60dc673c_0

Filesize
544B

MD5
ea05365bd728a4c5806d4e83c1a6db63

SHA1
a34669edd56025eed3918e197ff628928ab2f05c

SHA256
8f87875e9ce2bf177260155062010f78e64e7d2f1f8a3eb2cd37a2b1e9c9204d

SHA512
aa6c9168dda137731d86117614dcef40948b5fb20aa85db3ddef61bae875edea64c5589cb8ab0d594a05a609141030ef326ee4feeec21fca552b347a344251d3

Download Submit
/data/user/0/com.nopufepomico.retiti/cache/WebView/Default/HTTP Cache/index

Filesize
48B

MD5
6d7d499960179766cd4261d12dacc411

SHA1
e6f8553b0015e12b23cc551afe98763f3b1c9bed

SHA256
c96ac03cfdbc6f4c1bdcdf764f1a6573f852e7aae5ef405969516b93ed271182

SHA512
6526c668477a01a850b8757b77dd3e7be27ad1991f5cf777685efcb03a21f31b71f6eae00f326931599baae4b16360e33e3d0f2894f1b2c1753391df02a14547

Download Submit
/data/user/0/com.nopufepomico.retiti/cache/WebView/Default/HTTP Cache/index-dir/temp-index

Filesize
336B

MD5
606f07149d720b58aa27a32ebabd4fcf

SHA1
a4d0eafbb2ff40c678ff6d805dd8dc21e4d93754

SHA256
4519e631ba4f747a90bc298fb3062900448d11a2144b4d6ddf4b2905763f4c9e

SHA512
0be9e8ac4f3b693d0c8f4c84b8682df6aae24308304f4bf0fdb8e44b9943559dcdca252045e0a8bba773abfafb970d5143cc1f48428bf0ff1bf547da7c4e0e11

Download Submit
/data/user/0/com.nopufepomico.retiti/cache/WebView/Default/HTTP Cache/index-dir/temp-index

Filesize
96B

MD5
bf223f199382cb798cdf782d3db3f91b

SHA1
e212bdbc7dba116723d1a65b0e1f0bf2a7db46e6

SHA256
88b696569357e418e4cb393d5af1363742e8e672a8dfe1e5ab5dc167dc024978

SHA512
92aa8dc4972860bc77772526725b8c4ce709ac1bc1c1cf3a9142e24fc99a4b55195c27b4e58fc6f5de73dff93613016404a96efd1e171f53b5075fb4f03779fc

Download Submit
/data/user/0/com.nopufepomico.retiti/cache/WebView/font_unique_name_table.pb

Filesize
57KB

MD5
f080fa2a56ab5479d58063e5ea871447

SHA1
4b3fd57a98916fa5784305b76ba30af26b5253d9

SHA256
0aa374bc456330fd1b5daf18d25b4bb8e2df1998dfa85466f2c31843ff56e815

SHA512
8aee3186a95b389d39882620b7c4199a29aa50580aa98a381b2931a934de6406943c89d4d00ebeabff21e2b03b4a4adcc01e37e32a2335c4838be24bdbf61936

Download Submit
/data/user/0/com.nopufepomico.retiti/shared_prefs/WebViewChromiumPrefs.xml

Filesize
127B

MD5
97ccd9a2b2063143df56b6937f961ca4

SHA1
5e78a91ae5df289ce83443cb7d5589dd3504fb5d

SHA256
248ff7928128015b1cfe3e6517c8f9b8c9511bfb8c8baf44fc1370640eac61fd

SHA512
86c05a5bb3d7eedea390664796966e9e5a5bf846c85808da54407788a76b3ee25b91428242a1e76d8765bfe51e1ba3636617fbab6e7dbb39fcc433e07c3fcd3b

Download Submit
/data/user/0/com.nopufepomico.retiti/shared_prefs/settings.xml

Filesize
136B

MD5
eb24c17fd5e4d150948ef0deed6e0733

SHA1
52a99ca7f0bb7d7565b85b503e3476fdd5f710a1

SHA256
8bd88a158883200e8fff99c0a9dad916075e361a3fbb92c0b24e57d42dfee3fb

SHA512
c0c51d21fb6bac3157bfc17faec02b0b6ec83c8b5fd5fb0acd989c987c0ceffe7bca180839b50e5b907d3dfc5c13e7eecb04a695a28e746a092b7373cbfae607

Download Submit