ermac | 9b5905a253141d4f64394de73775541a7bb16714cff8d18684e24ae887c97fc2

Resubmissions

15-05-2023 08:47

230515-kp5d3sfe45 10

12-05-2023 04:56

230512-fkpqlsbg86 10

Analysis

max time kernel
513427s
max time network
161s
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
15-05-2023 08:47

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General

Target

495a0621b2afc6adefbf17dc6c3cf5e92ba8227ac6939a20439b1b9dde878617.apk
Size

3.7MB
MD5

a88a497b3ae6bb84209cac0906df61a7
SHA1

fd80903a98e187bc841a0aabe04528cc1654b8ee
SHA256

495a0621b2afc6adefbf17dc6c3cf5e92ba8227ac6939a20439b1b9dde878617
SHA512

684e5ea64375791c2195dd1459d868e6ed2d40ab376b5477e0964c43a4eccc57aab66ce08a55eddb51d1edc6503cf12c9c7ab7f27eb815105ec4ec31ecff5d7a
SSDEEP

49152:4GXx4KE5XqsZKV0dw8zbn3A9/HKu84zXYenCh4ebzds31j/D0NcxZBD5I:cz5XqsZDnwxnXYenUP/dsOyxrD+

Score

10^/10

ermac banker evasion infostealer ransomware trojan

Malware Config

Extracted

Family

ermac

Blowfish_key

AES_key

Signatures

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

Ermac payload 1 IoCs

resource	yara_rule
behavioral2/memory/4406-0.dex	family_ermac

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

description	ioc	Process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.tafupqzpqgmn.tmnhkq
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.tafupqzpqgmn.tmnhkq
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.tafupqzpqgmn.tmnhkq

Acquires the wake lock. 1 IoCs

description	ioc	Process
Framework service call	android.os.IPowerManager.acquireWakeLock	com.tafupqzpqgmn.tmnhkq

Loads dropped Dex/Jar 1 IoCs

Runs executable file dropped to the device during analysis.

ioc	pid	Process
/data/user/0/com.tafupqzpqgmn.tmnhkq/qosbiyjhaq/faadweurhczgroa/base.apk.clbwfis1.ixi	4406	com.tafupqzpqgmn.tmnhkq

Reads information about phone network operator.

Removes a system notification. 1 IoCs

evasion

description	ioc	Process
Framework service call	android.app.INotificationManager.cancelNotificationWithTag	com.tafupqzpqgmn.tmnhkq

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

ransomware

description	ioc	Process
Framework API call	javax.crypto.Cipher.doFinal	com.tafupqzpqgmn.tmnhkq

com.tafupqzpqgmn.tmnhkq
1⤵
- Makes use of the framework's Accessibility service.
- Acquires the wake lock.
- Loads dropped Dex/Jar
- Removes a system notification.
- Uses Crypto APIs (Might try to encrypt user data).
PID:4406

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

/data/user/0/com.tafupqzpqgmn.tmnhkq/app_webview/Default/GPUCache/index

Filesize
48B

MD5
6d7d499960179766cd4261d12dacc411

SHA1
e6f8553b0015e12b23cc551afe98763f3b1c9bed

SHA256
c96ac03cfdbc6f4c1bdcdf764f1a6573f852e7aae5ef405969516b93ed271182

SHA512
6526c668477a01a850b8757b77dd3e7be27ad1991f5cf777685efcb03a21f31b71f6eae00f326931599baae4b16360e33e3d0f2894f1b2c1753391df02a14547

Download Submit
/data/user/0/com.tafupqzpqgmn.tmnhkq/app_webview/Default/GPUCache/index-dir/temp-index

Filesize
96B

MD5
ff8b7ffe0542ba932c8a05425e45b418

SHA1
88216761343d14ac74f36899ef92751d6329a588

SHA256
03e2e41580a0f9b7946aff39dab6aba30b1b5d882b7a1804e66cc6df2de5fa2e

SHA512
18b47a248f18a7bad0fd3c5f673096ad674b45240f5abd011779633106ce93ff9665962a51dff1231df00325f5826841475fa85ed80f1e7c1e87bf153fcb2175

Download Submit
/data/user/0/com.tafupqzpqgmn.tmnhkq/app_webview/Default/Session Storage/000001.dbtmp

Filesize
16B

MD5
46295cac801e5d4857d09837238a6394

SHA1
44e0fa1b517dbf802b18faf0785eeea6ac51594b

SHA256
0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

SHA512
8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

Download Submit
/data/user/0/com.tafupqzpqgmn.tmnhkq/app_webview/Default/Session Storage/000003.log

Filesize
61B

MD5
9f7eadc15e13d0608b4e4d590499ae2e

SHA1
afb27f5c20b117031328e12dd3111a7681ff8db5

SHA256
5c3a5b578ab9fe853ead7040bc161929ea4f6902073ba2b8bb84487622b98923

SHA512
88455784c705f565c70fa0a549c54e2492976e14643e9dd0a8e58c560d003914313df483f096bd33ec718aeec7667b8de063a73627aa3436ba6e7e562e565b3f

Download Submit
/data/user/0/com.tafupqzpqgmn.tmnhkq/app_webview/Default/Session Storage/LOG

Filesize
135B

MD5
b3c82b09deb0b53892990f6671625375

SHA1
082dee8697c6fb4c9c4f67853de69300502da901

SHA256
be6799b7e880204f12ce4602cd3edc243b50aaa5c66c8c1f7b7b886d06da9030

SHA512
c008977bd7f514affdb2a55ce0c2a13d7b36dfecdddcc13f1a71c5f94afd5f45b107142dc9366e404574807615bfd64e2a3eb7f257979cdf6221ec04560ff040

Download Submit
/data/user/0/com.tafupqzpqgmn.tmnhkq/app_webview/Default/Session Storage/MANIFEST-000001

Filesize
41B

MD5
5af87dfd673ba2115e2fcf5cfdb727ab

SHA1
d5b5bbf396dc291274584ef71f444f420b6056f1

SHA256
f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4

SHA512
de34583a7dbafe4dd0dc0601e8f6906b9bc6a00c56c9323561204f77abbc0dc9007c480ffe4092ff2f194d54616caf50aecbd4a1e9583cae0c76ad6dd7c2375b

Download Submit
/data/user/0/com.tafupqzpqgmn.tmnhkq/app_webview/Default/Web Data

Filesize
120KB

MD5
a48cd9324b1f8754b07f00d863b840f3

SHA1
11c6614775b35a58f440971dfc87c8aaac6d6173

SHA256
8859a216183793485d4699bf69d7ed96904679834188d07b9a70424d47eb1420

SHA512
35fa712f0af4a5eeed7e00e4e59ed5027dc6609d268462fe79d92043be9ae0c5961ce9e1d2f64b1a196c9b6aa6242b8b83817b3ee4c1058596c58a99c45478b1

Download Submit
/data/user/0/com.tafupqzpqgmn.tmnhkq/app_webview/Default/Web Data-journal

Filesize
2KB

MD5
a03eda06cdcc12c3760d61c0a2a9eecd

SHA1
df8670ff2352d124efed0eb71fedbf1b0f81af22

SHA256
6a683f3033d86728045d60acc2152de7d27bab6b1695365b8db0c3618cb2e676

SHA512
33fa35662a8307c0a7c7716e152cce277cf21d70906dbe42a19c71120b34f4474531af0b5efa2af7d04d591316482496e2314a742809cbb91b0fa8592e26a3bf

Download Submit
/data/user/0/com.tafupqzpqgmn.tmnhkq/app_webview/webview_data.lock

Filesize
29B

MD5
55241eca398892f5ffc71746228ba8c3

SHA1
0b3978a2322f7d25b2646c2610c1a35beaa7c894

SHA256
f14c287b3794bbb4a7793010f886a556258e08d7ba47f5bd5f28fd7049bd0ec3

SHA512
c1aa02432f58d96446b903e7543bf45536a4d7d746342fca224684463cc3ce20b116f1cf90a6d60f1400d6037faed4489119c43b1e5bbc9ad8709c5c383b15f2

Download Submit
/data/user/0/com.tafupqzpqgmn.tmnhkq/cache/WebView/Crashpad/settings.dat

Filesize
40B

MD5
23e9f276171502ca5bb42e52a9a1d1fe

SHA1
e5673166ca15e0fd829fd27ea4dee4f53f7fc1a2

SHA256
c3dcdb9cdde16bfd6d5ddc26d4777250e09808abd80b738688d55be085bb6b57

SHA512
a27be93bd68233fa88189aa5f3b7b2e238de9ff46db86ed901184f2bbf204462c05d8a11f078189c1b8243b5495c084fff5dcddc12ebbf4c847a52c46b801461

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

Filesize
96B

MD5
79b78a6bd5b84b955d80a0af66cb3b39

SHA1
0581324cd695f793a9254ca0618fef75c99180a2

SHA256
3fa2547912fdd58b83a9a19f6083cef7aaf565bfd1ad1c606295e52924e52638

SHA512
65f9298c1fbdd82a02842bfff1a418eb5a9619318e73b40689c25bd213ecc29ec2354bfc51f9316486c13cec642edf194c347a0d95eefa9157243b3673cdf6cf

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

Filesize
96B

MD5
93124c31fa1cb288b4c9201faa5faf0f

SHA1
cb54c548283c2b8638a575f5d6e193933f3669f2

SHA256
35422a692ead916e0a877e9c0df4ceb7ddeaed65293cb3cf9666961045d24c65

SHA512
0d3eaf5cf408bf183306c0ae0e79e4161db74c1fbf06a4e5c4a4392f9811a0f9544680538c449796def55814e3cce7694f55d02833d3608607718fa77f6787ff

Download Submit
/data/user/0/com.tafupqzpqgmn.tmnhkq/cache/WebView/font_unique_name_table.pb

Filesize
57KB

MD5
f080fa2a56ab5479d58063e5ea871447

SHA1
4b3fd57a98916fa5784305b76ba30af26b5253d9

SHA256
0aa374bc456330fd1b5daf18d25b4bb8e2df1998dfa85466f2c31843ff56e815

SHA512
8aee3186a95b389d39882620b7c4199a29aa50580aa98a381b2931a934de6406943c89d4d00ebeabff21e2b03b4a4adcc01e37e32a2335c4838be24bdbf61936

Download Submit
/data/user/0/com.tafupqzpqgmn.tmnhkq/qosbiyjhaq/faadweurhczgroa/base.apk.clbwfis1.ixi

Filesize
1006KB

MD5
c9fa87cda7b48167b61083339d8a8a5d

SHA1
5713569cada892f482f8f2357ceee3abf67238f3

SHA256
5f0679419f6c92fa94c310326fe2c88c3fea2725de9af43066bd487be8d35246

SHA512
96e9205c673f28a5e14395272aac2c676cc9cd1fd2454f6a13da69abf1a2f5af3035d4d1c0a24ab7a91762326f3ec96a2ec0aea43b5ca9e3f0ba7edf69c8e332

Download Submit
/data/user/0/com.tafupqzpqgmn.tmnhkq/shared_prefs/WebViewChromiumPrefs.xml

Filesize
127B

MD5
97ccd9a2b2063143df56b6937f961ca4

SHA1
5e78a91ae5df289ce83443cb7d5589dd3504fb5d

SHA256
248ff7928128015b1cfe3e6517c8f9b8c9511bfb8c8baf44fc1370640eac61fd

SHA512
86c05a5bb3d7eedea390664796966e9e5a5bf846c85808da54407788a76b3ee25b91428242a1e76d8765bfe51e1ba3636617fbab6e7dbb39fcc433e07c3fcd3b

Download Submit
/data/user/0/com.tafupqzpqgmn.tmnhkq/shared_prefs/multidex.version.xml

Filesize
307B

MD5
e517bcd66722726d222bda38a8eefacb

SHA1
ce53bcdcea2b3401bae9e56cd493616020c1652c

SHA256
45a797f56dcbcbe30554dae2195031301a991cdd9d8762827146bc03fb5edf90

SHA512
c98fe96ed5cf0aaf64ad01c51ab4696d8805fccc9494ac4e47252c12c712346056833fccf82db209a7590200d0373719e93c128060d5e0025e14156a3ef76004

Download Submit
/data/user/0/com.tafupqzpqgmn.tmnhkq/shared_prefs/settings.xml

Filesize
116B

MD5
d238bcaede8d9fc88b09c0e7fa6248f3

SHA1
7dc3c46230aeff7499e958a777a15ba65d483933

SHA256
44b7e05984b2ff4a389f942dd8e2c6c948abb1edb92ad88d124472fb9ff974c1

SHA512
ef57d436fa7452f4d7a1e737351eed1a74155b8803ab28f838ae6cf134ca6b4be3a47731d024d2ba3c89bb26bdd24b68fb323f5b7d16c36712df42ac093a1a52

Download Submit
/data/user/0/com.tafupqzpqgmn.tmnhkq/shared_prefs/settings.xml

Filesize
3KB

MD5
713b2abcbc214a57a87fd5bcf7d663f3

SHA1
2cd9716a7df0f4b9498e0bddc143f68a63e798d6

SHA256
b5a75ebf3bb1b9d5030c17cad8c6a58c2f26ae73c26d50608ad0ce35008c426f

SHA512
ee5f47000e2228eb9e4889857965059e620ff0a97274300a05e2613ecae03b915b81e50930b088a472708af5726a55079bf8f238924eb186cd39b9ee84fc185c

Download Submit
/data/user/0/com.tafupqzpqgmn.tmnhkq/shared_prefs/settings.xml

Filesize
3KB

MD5
4d145eebef2aaa781c2f3d2935e1dab8

SHA1
564daa5160f48acd65aac3ac09b6fdb410446d62

SHA256
02389302f870bb9a1736574f98e4d22ab973765d10feb708b807aaec6980fb92

SHA512
1df4766859d7be8a5823ad2ecf5019a6d45f24b4a170233c7b00d3628b31b15d5140edfed48b2a2d5f642713597ac82008f84ac53acb43045f7f2736d36544f7

Download Submit