hook | 238cdfbab88cbcb6b1a2379b2a18c993640c1f498c4cb0e9faef408331f41c0b

Analysis

max time kernel
769759s
max time network
159s
platform
android_x86
resource
android-x86-arm-20220823-en
resource tags

androidarch:armarch:x86image:android-x86-arm-20220823-enlocale:en-usos:android-9-x86system
submitted
18/05/2023, 07:59

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General

Target

238cdfbab88cbcb6b1a2379b2a18c993640c1f498c4cb0e9faef408331f41c0b.apk
Size

3.7MB
MD5

10f5a518febd8b0b08b7f69982bc0a7d
SHA1

77137ca4881b82a9baf3dea99e03ce92c89cc742
SHA256

238cdfbab88cbcb6b1a2379b2a18c993640c1f498c4cb0e9faef408331f41c0b
SHA512

52c557425b2eff4f244c2c34280118e913574c0b3a51bff966c4fb4538afdc1220ad6f94956098aeb53cee4984aeff30142f148f6e19c1a978af6d0e7801f918
SSDEEP

98304:z/Se3GAtk9/CYItyoKmFTwgzOOH2qWS9Rr:+e33tcPItTvFcg5W6b

Score

10^/10

hook evasion infostealer ransomware rat trojan

Malware Config

Extracted

Family

hook

http://193.233.196.2:3434

Extracted

Family

hook

http://193.233.196.2:3434

Signatures

Hook
Hook is an Android malware that is based on Ermac with RAT capabilities.
rat trojan infostealer hook
Renames multiple (204) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

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

description	ioc	Process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.dogilowopuna.zico
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.dogilowopuna.zico
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.dogilowopuna.zico

Acquires the wake lock. 1 IoCs

description	ioc	Process
Framework service call	android.os.IPowerManager.acquireWakeLock	com.dogilowopuna.zico

Loads dropped Dex/Jar 2 IoCs

Runs executable file dropped to the device during analysis.

ioc	pid	Process
/data/user/0/com.dogilowopuna.zico/app_DynamicOptDex/pskPXGY.json	4127	/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.dogilowopuna.zico/app_DynamicOptDex/pskPXGY.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.dogilowopuna.zico/app_DynamicOptDex/oat/x86/pskPXGY.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.dogilowopuna.zico/app_DynamicOptDex/pskPXGY.json	4075	com.dogilowopuna.zico

Reads information about phone network operator.

Removes a system notification. 1 IoCs

evasion

description	ioc	Process
Framework service call	android.app.INotificationManager.cancelNotificationWithTag	com.dogilowopuna.zico

com.dogilowopuna.zico
1⤵
- Makes use of the framework's Accessibility service.
- Acquires the wake lock.
- Loads dropped Dex/Jar
- Removes a system notification.
PID:4075
- /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.dogilowopuna.zico/app_DynamicOptDex/pskPXGY.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.dogilowopuna.zico/app_DynamicOptDex/oat/x86/pskPXGY.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4127

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

/data/user/0/com.dogilowopuna.zico/app_DynamicOptDex/pskPXGY.json

Filesize
704KB

MD5
9bfea1b2027ec1635c3590e0ea14e3cf

SHA1
9cc1ea7f49e361961be1f5d2ab43658d41f86d59

SHA256
f2620b302348120f00c9bd7a3e0a6cbef991b484edcdcdd915fbbd13ac861eb4

SHA512
4e17d67bcd5f5361a3d9b27f4fbc29969b25a2686edffa9872e7bca1a6528b4eaaf7f90541eda8d31583d8e515b1a20d4d1b20dd4a88c9e83e07d91d525de4a1

Download Submit
/data/user/0/com.dogilowopuna.zico/app_DynamicOptDex/pskPXGY.json

Filesize
1.5MB

MD5
7ffa71e1e1ae0b4b47d6be864fc29366

SHA1
8f19d6ff1a28b1737f298a22c19009782ef84331

SHA256
593b12a640d78ee06f6b74458c7f456eaff676b68dca095de5feeb86adeae18e

SHA512
f017f92ccbb379f7fae44df3473c12b03200081263c9f5187b929db49887f4af0498f46697cb51cfab0901f5b04c133f10b7d7b2291a8832a9e7f1b9082f5d9d

Download Submit
/data/user/0/com.dogilowopuna.zico/app_DynamicOptDex/pskPXGY.json

Filesize
1.5MB

MD5
cf80a0964d7adb2dc9ab389185abcff1

SHA1
a630b6d63b9be79f2fe9f2fc38c91fcbc1d8d6ea

SHA256
f90f95cb686db2f9ce0607038438527e3665ca8e33c38fd168834f6d96def4ed

SHA512
ef1a6f7c47772fd49ae2fda552df4f54fea83e30c99980ae8e0863b4abcfe2d7cb9869449962129cb560760d49ee6349add36e6ca7417e6cf0e9f99d86a3ee53

Download Submit
/data/user/0/com.dogilowopuna.zico/app_webview/GPUCache/index

Filesize
20B

MD5
93027d42b314432c4216e6cfca48b384

SHA1
43448dd8102979c3926828182579691945eedd4e

SHA256
3cda72e67c62e52a342309c44f2cb3b6c1019c7b11822e2f628e48e254e2b41c

SHA512
a52d13cf7f5be196d1e2f135b8a010f80558c5d35e90e7792441d1c976517d55cf1c9587949db69ebef294cc6ef79529a65e7d779964793016efecacd152f70e

Download Submit
/data/user/0/com.dogilowopuna.zico/app_webview/GPUCache/index-dir/temp-index

Filesize
48B

MD5
0dbfc2ef0318e66e6ed67d74757186d0

SHA1
640495a99477772b4f556032f0b4381d40c459de

SHA256
f2a7d4f4f0b34983d02735540a003dd29ffd9d50df2a67589aaaa8c3ae01c609

SHA512
02deaaeef4c08b2560b0da7662a4e6a2017863e7d811f976f4f620fa6afbec98e617859f48fb1262a625f4398b0317d099fc40f0c9038e15f89b0f585fe55d03

Download Submit
/data/user/0/com.dogilowopuna.zico/app_webview/GPUCache/index-dir/temp-index

Filesize
48B

MD5
1e585327d876e000fb7b1e7b4e36ab84

SHA1
2e997bbe758c5c571a86864f365865ccc13b5f55

SHA256
898e6af6c58368f523a042859a2692c725fe9da66e991d1a2b2e6547e3df2294

SHA512
91ba1b1c7f4857b84ba427aef349d419f3c596ca9128d3f8956b41852f2c33938a4970f31034addbf50a6ff01428d7680451fce839179200a20650972fac255a

Download Submit
/data/user/0/com.dogilowopuna.zico/app_webview/Web Data

Filesize
104KB

MD5
dc79f9ce5f3ab5270b33e61119dfc959

SHA1
1844bf222a5144b513dcf2fb50a18c011701c647

SHA256
47e65f4de08deabfd52ecdb8b0a29c61c482188b92c36182e2112ca0a8f4ff65

SHA512
18b8894a7f35df516f423bbdebf1e05ce09eaf4345b139e59e603cadb81f8d1fa20f793438c28e8fd9a64e64f0684223d90ce6f10d3f93cb0c781049a8cff03e

Download Submit
/data/user/0/com.dogilowopuna.zico/app_webview/Web Data-journal

Filesize
1KB

MD5
87d05e49287d094ef7f339474d73303c

SHA1
a3455d94f42da7e593e381464640a72b3af4b5a6

SHA256
7d923d27386b8444b1cdd50709a07b5d7dbbc7d0a4a47aace9cdbbfe00866de9

SHA512
7a08b2f4c8fe9eb87cb5f96fb199de0de66bf2138effc50e43b6ac3fe4fe27b896829e1fb1069bbcf45b52380a1d68a29f82a25906000fbe435f7ae9958518bb

Download Submit
/data/user/0/com.dogilowopuna.zico/app_webview/metrics_guid

Filesize
36B

MD5
41df21c10df6200a7cc8e36966e2c4e8

SHA1
1ecc0362e40fa9d960948da316d3cfd2c6d91c99

SHA256
3e82f64543cfb34738e6f6c18be51acddb6b805bbe1446672d08f776be4ea4be

SHA512
f6604206b1e2bead4a937285f53f75084777c928b3ee286c3d7b73f8997fa925ed54194b3c82d5f06a65357cb9aa80d8855c4780c8f050f5db057a25d14b39ca

Download Submit
/data/user/0/com.dogilowopuna.zico/no_backup/androidx.work.workdb

Filesize
4KB

MD5
f2b4b0190b9f384ca885f0c8c9b14700

SHA1
934ff2646757b5b6e7f20f6a0aa76c7f995d9361

SHA256
0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

SHA512
ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

Download Submit
/data/user/0/com.dogilowopuna.zico/no_backup/androidx.work.workdb-journal

Filesize
524B

MD5
0aa904081057dad5b530272a68953279

SHA1
c2269f791e883085b0ae6ef93b4259d0c33bad83

SHA256
fd5b94fe586472e72861dcd316f7a568c047fb6dd9e30c50aecd3928ef51995a

SHA512
63139db364897775002b03096c4dfad819af3f9f9b74df73ed056fcf5f7455a520801211217c1df5a3be9c323fa3051f4641d4a9ef596249a4f016166e4afecf

Download Submit
/data/user/0/com.dogilowopuna.zico/no_backup/androidx.work.workdb-shm

Filesize
8B

MD5
7dea362b3fac8e00956a4952a3d4f474

SHA1
05fe405753166f125559e7c9ac558654f107c7e9

SHA256
af5570f5a1810b7af78caf4bc70a660f0df51e42baf91d4de5b2328de0e83dfc

SHA512
1b7409ccf0d5a34d3a77eaabfa9fe27427655be9297127ee9522aa1bf4046d4f945983678169cb1a7348edcac47ef0d9e2c924130e5bcc5f0d94937852c42f1b

Download Submit
/data/user/0/com.dogilowopuna.zico/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
e568f5a4eb381016b3c9d61b389e3ac6

SHA1
2a268c89e218794c0c73407ce2b89149e3fbcaa0

SHA256
506bfb9425d4b394e6e30a470eba7b1d3a502fd2018f6ecebfca3f16b956bc25

SHA512
3f0d84c80740e3741797021dcb49201beb9feded1dec75bc3ec78fdd7d42efda5ab18f44864d78421bbd18dc23ff88ead64fc7ac3682f4a870cdc99f7fbac83c

Download Submit
/data/user/0/com.dogilowopuna.zico/shared_prefs/WebViewChromiumPrefs.xml

Filesize
127B

MD5
21223e9184445fe043476484cd8cb1f9

SHA1
2b4813f849121d60ba35eb0889080668bb62c778

SHA256
bb61b7c087c2ae2de93a7740ff75707342940557146366e92b840284cd9446af

SHA512
be21408de0cc643650e5d9ab9057a8f9de88e37fbdc6417cfeba160402ec4cd14fccbc82cbbfd941ecfc0bb3d4056ee61ac199efdc99d647d53e65818835fd48

Download Submit
/data/user/0/com.dogilowopuna.zico/shared_prefs/settings.xml

Filesize
134B

MD5
78a2c63a0ec2f947097c8b764fb49e30

SHA1
e38dcf9d6a39c0f58cdabfcbd5dd4954817a7869

SHA256
7aaf74896c69acb15d2b36290e8bc74f6090e1b51ceab19400018fa7ed87285b

SHA512
96acd80ce5b0a1bd286f688de13b8b5ed9f2cfc73f034c2928a3d7a360a100e54c7a3239a45d7f81969585cc40b6fa9ab3ec4f7fa487e49efb1954b14d66484b

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads