ermac | 33b7572766cef039979714d229ff2076cd5c979e22a11891ef6fc4baaac0e0fc

Resubmissions

07-08-2023 04:30

230807-e5bttaeh2w 10

04-08-2023 13:49

230804-q4wy5sbb43 10

08-03-2023 22:25

230308-2ca35sgd5w 10

Analysis

max time kernel
3460762s
max time network
337s
platform
android_x86
resource
android-x86-arm-20230621-en
resource tags

androidarch:armarch:x86image:android-x86-arm-20230621-enlocale:en-usos:android-9-x86system
submitted
07-08-2023 04:30

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General

Target

sakinacmaermacapk.apk
Size

2.9MB
MD5

59c1dfcf5cc3b76c961fe08f163dbb02
SHA1

12d002783acc1fe8573abf8f07e7fc79d2769f27
SHA256

33b7572766cef039979714d229ff2076cd5c979e22a11891ef6fc4baaac0e0fc
SHA512

38639d0029410c6af04c15e53a37d4c7e8e572cf8fae4c97ee347885615c30d65825d85f7c71149d6bc9bee8db5c12048695cf59b91f1e6241568d69384b0184
SSDEEP

49152:Fun4FKKpN0DAb3KBoNEzcnxmnHy99J9N1OG8Ps9KL4fED3AfnkIPBNLEO4ZT5Noq:FCelAAnxc49D/B5qD3AfBLn4ZTcyN

Score

10^/10

ermac banker evasion infostealer ransomware trojan

Malware Config

Extracted

Family

ermac

http://31.41.244.187:3434

AES_key

Signatures

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

Ermac2 payload 2 IoCs

resource	yara_rule
behavioral1/memory/4150-0.dex	family_ermac2
behavioral1/memory/4036-0.dex	family_ermac2

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

description	ioc	Process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.zixudahitifo.gicu
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.zixudahitifo.gicu
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.zixudahitifo.gicu

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps). 1 IoCs

banker

description	ioc	Process
Framework service call	android.content.pm.IPackageManager.getInstalledApplications	com.zixudahitifo.gicu

Acquires the wake lock. 1 IoCs

description	ioc	Process
Framework service call	android.os.IPowerManager.acquireWakeLock	com.zixudahitifo.gicu

Loads dropped Dex/Jar 2 IoCs

Runs executable file dropped to the device during analysis.

ioc	pid	Process
/data/user/0/com.zixudahitifo.gicu/app_DynamicOptDex/Hl.json	4150	/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.zixudahitifo.gicu/app_DynamicOptDex/Hl.json --output-vdex-fd=41 --oat-fd=43 --oat-location=/data/user/0/com.zixudahitifo.gicu/app_DynamicOptDex/oat/x86/Hl.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.zixudahitifo.gicu/app_DynamicOptDex/Hl.json	4036	com.zixudahitifo.gicu

Reads information about phone network operator.

Removes a system notification. 1 IoCs

evasion

description	ioc	Process
Framework service call	android.app.INotificationManager.cancelNotificationWithTag	com.zixudahitifo.gicu

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

ransomware

description	ioc	Process
Framework API call	javax.crypto.Cipher.doFinal	com.zixudahitifo.gicu

com.zixudahitifo.gicu
1⤵
- Makes use of the framework's Accessibility service.
- Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps).
- Acquires the wake lock.
- Loads dropped Dex/Jar
- Removes a system notification.
- Uses Crypto APIs (Might try to encrypt user data).
PID:4036
- /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.zixudahitifo.gicu/app_DynamicOptDex/Hl.json --output-vdex-fd=41 --oat-fd=43 --oat-location=/data/user/0/com.zixudahitifo.gicu/app_DynamicOptDex/oat/x86/Hl.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4150

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

/data/user/0/com.zixudahitifo.gicu/app_DynamicOptDex/Hl.json

Filesize
444KB

MD5
0bea6585938f017bcc65885ca587fbb0

SHA1
ca739eb958306424008b9980c18e7a07aef55391

SHA256
6fc4576bc81f3beda1a9e1b832886189f572ee444e0c5c9b4e450bf72fd50b7b

SHA512
7c8f576ff28090382b234be8b58d800c2f903c31d61c1a7c2366620d93c976c7050fcc7a65bc70032df6f56b4e2c086ce44b009f57a9686ea4ad9d09f42c45f5

Download Submit
/data/user/0/com.zixudahitifo.gicu/app_DynamicOptDex/Hl.json

Filesize
911KB

MD5
2a7621a9ef6e7e4087b5e3d81d96538f

SHA1
1313742895ba84ecb5cfcf74709b31ecd6b729ab

SHA256
36dba42f29f9cb4284a67182928a5ac19087954fc750c2af6670cbecfa26c456

SHA512
3e5da188d2627a9f7140e7e5359314f0a442db6032f22daec6ec361479a361ad081123459731ffbcdcc7c9651646da0f7bf7b1230b81ec2bd645519f19e90589

Download Submit
/data/user/0/com.zixudahitifo.gicu/app_DynamicOptDex/Hl.json

Filesize
911KB

MD5
e071d783d184c999ca79e2774e4147a7

SHA1
f4e37f05941ee25e02bc6781ba5ddc32d6eb9d7e

SHA256
123eb705335efa5af8a5b85f34e5a3afb45db0a406cf2cbbe15c9a202819d5d2

SHA512
e91e29888b9bf58835b458fb3cab0b300b9ca7c95a07282dfc7d7a75b6e67c07b26a2fd976b8d7d04b010881bf1537eff22ce7cde20c0abebc76550137b1f626

Download Submit
/data/user/0/com.zixudahitifo.gicu/app_webview/Cookies

Filesize
64KB

MD5
cb7543c4df600f2af58097cce0e334ba

SHA1
83cc92f38c27fdb4fa519b1ce2f37912f24af1f0

SHA256
64c022ae708f94ffde986e105d88f708884de325720bfb9925c4160a6d417233

SHA512
ad51cad0472327bd68aa2d791341cfafed58971752352537bb603ed18b15a3f9185e9150983a28ecd09606e8dcaef6d1c9d93213dd246ef7720f39842eb3d980

Download Submit
/data/user/0/com.zixudahitifo.gicu/app_webview/Cookies-journal

Filesize
1KB

MD5
a80ea531305c2c7a1ae73e6f5a5bd833

SHA1
a4b4eb3405e1ced2464911bd23449d30c1423726

SHA256
9bd8cd98b26e1c7b19f1fb444f0359919c12dd2d6e20ef8bcef366a1b6561e00

SHA512
de9182deaf9eff8f6d5684481bda6d12f8a2e62c29749b9baef3c2726ecc83e8ab3290871f3084f7143b4c74ffdedef521b31edeccf99c308f92ea39de668b7b

Download Submit
/data/user/0/com.zixudahitifo.gicu/app_webview/GPUCache/index

Filesize
20B

MD5
93027d42b314432c4216e6cfca48b384

SHA1
43448dd8102979c3926828182579691945eedd4e

SHA256
3cda72e67c62e52a342309c44f2cb3b6c1019c7b11822e2f628e48e254e2b41c

SHA512
a52d13cf7f5be196d1e2f135b8a010f80558c5d35e90e7792441d1c976517d55cf1c9587949db69ebef294cc6ef79529a65e7d779964793016efecacd152f70e

Download Submit
/data/user/0/com.zixudahitifo.gicu/app_webview/GPUCache/index-dir/temp-index

Filesize
48B

MD5
9985be28e3d3d6a36730e70eb5e15524

SHA1
97cc910fb0ef860faf63e29b4c90c0464a7dbc28

SHA256
f5156a0a29aa8d2b4b570c3caff14c47a6ce2512f396629b315e740fbb1f76ed

SHA512
3b1d797dc6a1a8cd98ccdbbb80364b59d1019b90436aaa6b7b51eb273d9c90a56142d934a4406471c70138c319d0695dad80e0e96d923d9f09e2c5ef43561034

Download Submit
/data/user/0/com.zixudahitifo.gicu/app_webview/GPUCache/index-dir/temp-index

Filesize
48B

MD5
0962e4e98ad77b0d0449794507ec5770

SHA1
dece65ae092651baf67a98aec681d414a7b5441b

SHA256
3841c993004cca5802bcbf0852e5479e2e08503c5e0dd7dd20ad490ac27e964f

SHA512
2f54076cb1484001752a5517b4edb4008f37f5ff6d090e752566d3fa778dce734005c6b791ea7feef175b159385c727ddfaefeef126cdf4ae387cf39ce01b5d4

Download Submit
/data/user/0/com.zixudahitifo.gicu/app_webview/Web Data

Filesize
104KB

MD5
dc79f9ce5f3ab5270b33e61119dfc959

SHA1
1844bf222a5144b513dcf2fb50a18c011701c647

SHA256
47e65f4de08deabfd52ecdb8b0a29c61c482188b92c36182e2112ca0a8f4ff65

SHA512
18b8894a7f35df516f423bbdebf1e05ce09eaf4345b139e59e603cadb81f8d1fa20f793438c28e8fd9a64e64f0684223d90ce6f10d3f93cb0c781049a8cff03e

Download Submit
/data/user/0/com.zixudahitifo.gicu/app_webview/Web Data-journal

Filesize
1KB

MD5
46929ae2cadddf14659cdfb2865f5bad

SHA1
eef0ca104e34d73b59c0a5b4a1fb9ddf8ae73694

SHA256
2d5ffb0296e8d39abeb2bc6eb7620867b312596ecc4dcf943c24802f6a2434ef

SHA512
4ec6f6dec9e3334cb7457e9bc1b8be6e29d5c7ed1743bd3b44326138b40a1ebb84fe29a088a04838cd3ffb2e066039eb97296319871715abf8516d5fc7d8353a

Download Submit
/data/user/0/com.zixudahitifo.gicu/app_webview/metrics_guid

Filesize
36B

MD5
03e1b6aca14c2a840fe4c24d9d9a588c

SHA1
9df4f113f011dce41b05fa38a65633ff993203b0

SHA256
10b97602fc3fada33162d991f81ceabd8bb999f7d06027974eb3549c52c49f40

SHA512
84bacfdc15d2077f0edab53dcdc0ad0320b824cbce6b93787955a1dd36bf1a61d0d1429883653ab9e2c5bb62813f8edd20f8d1d5f2f21abedbbe4a09894b8560

Download Submit
/data/user/0/com.zixudahitifo.gicu/cache/org.chromium.android_webview/1dc40779bb8387b8_0

Filesize
201B

MD5
f95136ce26d419ae7a30de217850130b

SHA1
8520c1b771e600b3ae5794c7dfa55fc6873fc7bb

SHA256
81d6e10447f9a529b76ae81719950eafe12dfceaf6269311bac352284c671751

SHA512
248a2656fb2fe5153e8600e149dfe804d5f631f5dd67dc64de207711a376458504e11012e90faeea508d9fc0ca2d040ffd96667c6a47ade7cfbd01be138cdd4c

Download Submit
/data/user/0/com.zixudahitifo.gicu/cache/org.chromium.android_webview/1dc40779bb8387b8_0

Filesize
201B

MD5
f95136ce26d419ae7a30de217850130b

SHA1
8520c1b771e600b3ae5794c7dfa55fc6873fc7bb

SHA256
81d6e10447f9a529b76ae81719950eafe12dfceaf6269311bac352284c671751

SHA512
248a2656fb2fe5153e8600e149dfe804d5f631f5dd67dc64de207711a376458504e11012e90faeea508d9fc0ca2d040ffd96667c6a47ade7cfbd01be138cdd4c

Download Submit
/data/user/0/com.zixudahitifo.gicu/cache/org.chromium.android_webview/4c70d54a92cdffb7_0

Filesize
245B

MD5
bec9d05c0fecb3a7c9caa49e2efad9a7

SHA1
34642fc40b73dc8b38bca349779de324f8c74d47

SHA256
c712d4b90bd5f41f2819b432e3f5eaf8ef6175d033a9573bf31639aaa859cc26

SHA512
b062935455762f5e9b8862c5ed2f489360eab5ea370d059eca24c319f7cc4a248256b6fd11edee8503bd917ba50f8531b44bf787378a2db197c5a5f7a6954228

Download Submit
/data/user/0/com.zixudahitifo.gicu/cache/org.chromium.android_webview/4c70d54a92cdffb7_0

Filesize
245B

MD5
bec9d05c0fecb3a7c9caa49e2efad9a7

SHA1
34642fc40b73dc8b38bca349779de324f8c74d47

SHA256
c712d4b90bd5f41f2819b432e3f5eaf8ef6175d033a9573bf31639aaa859cc26

SHA512
b062935455762f5e9b8862c5ed2f489360eab5ea370d059eca24c319f7cc4a248256b6fd11edee8503bd917ba50f8531b44bf787378a2db197c5a5f7a6954228

Download Submit
/data/user/0/com.zixudahitifo.gicu/cache/org.chromium.android_webview/74a997b66d0f8136_0

Filesize
234B

MD5
0d915675fb63f2db8deb0ac9383304a2

SHA1
70ca56529803339dea97ed0dc7dc50188c84dc74

SHA256
cd08dc759c78debda56752cc01f9f18a6564b3775591d436d9b292f440792666

SHA512
073d44aac30ce59132bfaf39a529ac1c31c7f8aa3562364f237a5c2816657bc75a75301c72cd6bb2d3d56fd442c2729dcaba695511dd31eb478076858ad0d2dc

Download Submit
/data/user/0/com.zixudahitifo.gicu/cache/org.chromium.android_webview/74a997b66d0f8136_0

Filesize
234B

MD5
0d915675fb63f2db8deb0ac9383304a2

SHA1
70ca56529803339dea97ed0dc7dc50188c84dc74

SHA256
cd08dc759c78debda56752cc01f9f18a6564b3775591d436d9b292f440792666

SHA512
073d44aac30ce59132bfaf39a529ac1c31c7f8aa3562364f237a5c2816657bc75a75301c72cd6bb2d3d56fd442c2729dcaba695511dd31eb478076858ad0d2dc

Download Submit
/data/user/0/com.zixudahitifo.gicu/cache/org.chromium.android_webview/a63f6ad0ba0d5e6b_0

Filesize
143B

MD5
b24f6cbbe4db6e310e0a58d49007f540

SHA1
209102a10f91258b1a2c55183ae2b575b4d63974

SHA256
e9ca5f4eb1004fb6f2b76054d6bce536ebf57e4e0893ef241952d13e909cac15

SHA512
340d2f15ce05e49233eff25c5858546610c162d3cc6fe9d519e868cdc4781d3bf24a9e0fc4ffa19afcfd4d8a56d643edddcad94b748d015019cd06db626ceabc

Download Submit
/data/user/0/com.zixudahitifo.gicu/cache/org.chromium.android_webview/a63f6ad0ba0d5e6b_0

Filesize
143B

MD5
b24f6cbbe4db6e310e0a58d49007f540

SHA1
209102a10f91258b1a2c55183ae2b575b4d63974

SHA256
e9ca5f4eb1004fb6f2b76054d6bce536ebf57e4e0893ef241952d13e909cac15

SHA512
340d2f15ce05e49233eff25c5858546610c162d3cc6fe9d519e868cdc4781d3bf24a9e0fc4ffa19afcfd4d8a56d643edddcad94b748d015019cd06db626ceabc

Download Submit
/data/user/0/com.zixudahitifo.gicu/cache/org.chromium.android_webview/c4c671fa17cf644a_0

Filesize
224B

MD5
4cd3fdf1031a371edad1c7f2e329d41b

SHA1
283472077c22d64f23037e963ee5fe933865ab46

SHA256
6bda71f033769bbca3cf116c2b1d303e124584675aa5bf710bf8b1b123e27b07

SHA512
bf73a18509ff58f21ae281566f745de39b2eedbf7496b8bfce3938a6f7be91453d71be7b5abb14a49ca0fa1e74a035ed26f9e2e724ef260ae4182d782454f3f2

Download Submit
/data/user/0/com.zixudahitifo.gicu/cache/org.chromium.android_webview/c4c671fa17cf644a_0

Filesize
224B

MD5
4cd3fdf1031a371edad1c7f2e329d41b

SHA1
283472077c22d64f23037e963ee5fe933865ab46

SHA256
6bda71f033769bbca3cf116c2b1d303e124584675aa5bf710bf8b1b123e27b07

SHA512
bf73a18509ff58f21ae281566f745de39b2eedbf7496b8bfce3938a6f7be91453d71be7b5abb14a49ca0fa1e74a035ed26f9e2e724ef260ae4182d782454f3f2

Download Submit
/data/user/0/com.zixudahitifo.gicu/cache/org.chromium.android_webview/index

Filesize
20B

MD5
93027d42b314432c4216e6cfca48b384

SHA1
43448dd8102979c3926828182579691945eedd4e

SHA256
3cda72e67c62e52a342309c44f2cb3b6c1019c7b11822e2f628e48e254e2b41c

SHA512
a52d13cf7f5be196d1e2f135b8a010f80558c5d35e90e7792441d1c976517d55cf1c9587949db69ebef294cc6ef79529a65e7d779964793016efecacd152f70e

Download Submit
/data/user/0/com.zixudahitifo.gicu/cache/org.chromium.android_webview/index-dir/temp-index

Filesize
96B

MD5
57ec575f6bcb816b91f26b18562e338d

SHA1
e835abe5c5f6a015eeaf6e2ec72dc3db54ec649c

SHA256
5b94dd6d00c614ea173b3cac7c93ed81d4ed193f50f3d2d431937d251098aeb0

SHA512
d6c54096f3d6a88394d6e60404dd8a135c06c1cfffd719ae4bb913cb2ae7e1dfb408c3a97f6ebc14884bbbd612ed12ad68b8b2a56b6fc34f744aeb85cf0ac2d4

Download Submit
/data/user/0/com.zixudahitifo.gicu/cache/org.chromium.android_webview/index-dir/temp-index

Filesize
48B

MD5
a1418a351e93b8f22e3e983d03eff467

SHA1
5ee8696011fff64a8cfeff2f27832f8dc6b3d8b1

SHA256
46601a5b4de5b38b57e55c8bc70be9f62fb4ad40b134fe6d2a3ea1171cfdf985

SHA512
d7e2a3776518076ace751df2ff7b47aa4bb7f4d3c5522fafbc4da4a9956b90d4d086654370518b593585ff40b1312f01fd03a57d788ab222f0383e18a71edbfd

Download Submit
/data/user/0/com.zixudahitifo.gicu/shared_prefs/WebViewChromiumPrefs.xml

Filesize
127B

MD5
21223e9184445fe043476484cd8cb1f9

SHA1
2b4813f849121d60ba35eb0889080668bb62c778

SHA256
bb61b7c087c2ae2de93a7740ff75707342940557146366e92b840284cd9446af

SHA512
be21408de0cc643650e5d9ab9057a8f9de88e37fbdc6417cfeba160402ec4cd14fccbc82cbbfd941ecfc0bb3d4056ee61ac199efdc99d647d53e65818835fd48

Download Submit
/data/user/0/com.zixudahitifo.gicu/shared_prefs/settings.xml

Filesize
134B

MD5
f770197dee8ab5ace13f325d8f7999fd

SHA1
c199cc8f2bc121a6ddb8d2b61922ed4c3797995b

SHA256
a98f1264aab26b21d005fecbb0db2e746bd2b24ae04c3dbae162f6436206e3cc

SHA512
de3ab342f0b02ab96e97bfc25a73dd250f4d699517b78b5a89d62ea2c136598046173f4b49ca3060b05b077420e26682eb0f1bbd2d1855f06331cb9180920897

Download Submit