Malware Analysis Report

2024-09-09 13:38

Sample ID 240605-xs95ysfa2v
Target 98fdb47121935e5c7b61250dc501c3e3_JaffaCakes118
SHA256 106242de5841d95b49f8cf14ba0804ab234d773b557d4681f2009f6869a79495
Tags
banker discovery evasion impact persistence stealth trojan collection credential_access
score
8/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
8/10

SHA256

106242de5841d95b49f8cf14ba0804ab234d773b557d4681f2009f6869a79495

Threat Level: Likely malicious

The file 98fdb47121935e5c7b61250dc501c3e3_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

banker discovery evasion impact persistence stealth trojan collection credential_access

Removes its main activity from the application launcher

Loads dropped Dex/Jar

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

Obtains sensitive information copied to the device clipboard

Queries the mobile country code (MCC)

Declares broadcast receivers with permission to handle system events

Queries the unique device ID (IMEI, MEID, IMSI)

Requests dangerous framework permissions

Registers a broadcast receiver at runtime (usually for listening for system events)

Uses Crypto APIs (Might try to encrypt user data)

Checks memory information

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-05 19:08

Signatures

Declares broadcast receivers with permission to handle system events

Description Indicator Process Target
Required by device admin receivers to bind with the system. Allows apps to manage device administration features. android.permission.BIND_DEVICE_ADMIN N/A N/A

Requests dangerous framework permissions

Description Indicator Process Target
Allows an app to create windows using the type LayoutParams.TYPE_APPLICATION_OVERLAY, shown on top of all other apps. android.permission.SYSTEM_ALERT_WINDOW N/A N/A
Allows an application to write to external storage. android.permission.WRITE_EXTERNAL_STORAGE N/A N/A
Allows read only access to phone state, including the current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device. android.permission.READ_PHONE_STATE N/A N/A
Allows access to the list of accounts in the Accounts Service. android.permission.GET_ACCOUNTS N/A N/A
Allows an app to create windows using the type LayoutParams.TYPE_APPLICATION_OVERLAY, shown on top of all other apps. android.permission.SYSTEM_ALERT_WINDOW N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-05 19:08

Reported

2024-06-05 19:11

Platform

android-x86-arm-20240603-en

Max time kernel

178s

Max time network

131s

Command Line

com.bjin.gamemaster_main

Signatures

Removes its main activity from the application launcher

stealth trojan evasion
Description Indicator Process Target
N/A N/A N/A N/A

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.bjin.gamemaster_main/app_ttmp/t.jar N/A N/A

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

banker discovery

Queries the mobile country code (MCC)

discovery
Description Indicator Process Target
Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone N/A N/A

Registers a broadcast receiver at runtime (usually for listening for system events)

persistence
Description Indicator Process Target
Framework service call android.app.IActivityManager.registerReceiver N/A N/A

Uses Crypto APIs (Might try to encrypt user data)

impact
Description Indicator Process Target
Framework API call javax.crypto.Cipher.doFinal N/A N/A

Checks memory information

Description Indicator Process Target
File opened for read /proc/meminfo N/A N/A

Processes

com.bjin.gamemaster_main

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 api.ymkeyxeghj.rocks udp
US 1.1.1.1:53 a.asense.in udp
US 208.100.26.245:80 a.asense.in tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
GB 142.250.180.10:443 semanticlocation-pa.googleapis.com tcp
GB 216.58.204.78:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.212.206:443 android.apis.google.com tcp
US 1.1.1.1:53 api.zuisimpleweather.com udp
US 13.248.169.48:80 api.zuisimpleweather.com tcp

Files

/data/data/com.bjin.gamemaster_main/app_ttmp/t.jar

MD5 9aaea567e0c93e51718ba7eade0e83df
SHA1 0005116aad1779361b70093db00fed5ac090ae23
SHA256 b30a95dff6f65f444472971c8aaf895ffc8e66e0117ce242ec4cb8a8a519a5ec
SHA512 2aef1034335d8752f4e25ce6c5823ce03019536cc6e51ee61b5291c77a0f356a2517e0cbe7f2c4cc2d897115dc856449a342cfdc247c9d34d313187d15b2f890

/data/user/0/com.bjin.gamemaster_main/app_ttmp/t.jar

MD5 f72c3d07507c3e26d317e9117ba757d1
SHA1 cdede4739e9dd9fd95243aab5e44c24f93f825c3
SHA256 1c65834d9ca018c6496a8b9957589d0e94657911b6635dc21a448d78f9238887
SHA512 3420714252e7503abc13c99274d767b0bc08671d769460dc61823ab9470e145fb75c5dfaadc617d3a05cf251ed5ecf38ea7e8c1d7b343bca4d7e8296f1b805d4

/data/data/com.bjin.gamemaster_main/databases/com.bjin.gamemaster_mainb-journal

MD5 097115fc669889abef89f4cc2387d33d
SHA1 bebf1baa1353f078ee84bf5b51e95d743b675d4b
SHA256 dd85cebd4f060517f6d19da357cb2cea2819fcc0c32bde897c379665582c26f8
SHA512 92613ebf55985953eb97d3b7398a3b37d7c70c9bf794d29564c9d0c442340ccf13d7720118d1ae25190ece95a717fe54f1f97237ba00298b30dcba52bf331a09

/data/data/com.bjin.gamemaster_main/databases/com.bjin.gamemaster_mainb

MD5 f2b4b0190b9f384ca885f0c8c9b14700
SHA1 934ff2646757b5b6e7f20f6a0aa76c7f995d9361
SHA256 0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514
SHA512 ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

/data/data/com.bjin.gamemaster_main/databases/com.bjin.gamemaster_mainb-shm

MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

/data/data/com.bjin.gamemaster_main/databases/com.bjin.gamemaster_mainb-wal

MD5 2b13c0dc3d83f9e659a872c8f1fe2681
SHA1 9d91476220e3f518f31130f2c1a0182391326694
SHA256 3c9576bb92737c3d769a78b0c4327a5ee566ebc430b4aad4ac521f7399cfbdaf
SHA512 999c98da4e696dfb0343c1e588e3c490d49910220e0f8e7f66591661cd5e2eb1ed2682c8dedbd2829b318a760d6cb62dfcf5d6b56e1cf8d32356cf6860f51893

/data/data/com.bjin.gamemaster_main/app_ttmp/oat/t.jar.cur.prof

MD5 1c3ade511a5d703befb1824977459fc5
SHA1 7563adb0cedc002432538685fffaf5f864454203
SHA256 a2e8f1f4ab70923f04320ab1c2d67af82b3c2da6804ff55532db21281a575a8d
SHA512 27cb5c1a0cba37146726a27c3956734c88c0831b498b429a21d779643feb6cce193fa4ec5d4da3b80aefee84a40c23e7a706e82b0aa16103ad01390fb74ddcc4

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-05 19:08

Reported

2024-06-05 19:11

Platform

android-x64-20240603-en

Max time kernel

178s

Max time network

157s

Command Line

com.bjin.gamemaster_main

Signatures

Removes its main activity from the application launcher

stealth trojan evasion
Description Indicator Process Target
N/A N/A N/A N/A

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.bjin.gamemaster_main/app_ttmp/t.jar N/A N/A

Obtains sensitive information copied to the device clipboard

collection credential_access impact
Description Indicator Process Target
Framework service call android.content.IClipboard.addPrimaryClipChangedListener N/A N/A

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

banker discovery

Queries the mobile country code (MCC)

discovery
Description Indicator Process Target
Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone N/A N/A

Queries the unique device ID (IMEI, MEID, IMSI)

discovery

Registers a broadcast receiver at runtime (usually for listening for system events)

persistence
Description Indicator Process Target
Framework service call android.app.IActivityManager.registerReceiver N/A N/A

Uses Crypto APIs (Might try to encrypt user data)

impact
Description Indicator Process Target
Framework API call javax.crypto.Cipher.doFinal N/A N/A

Checks memory information

Description Indicator Process Target
File opened for read /proc/meminfo N/A N/A

Processes

com.bjin.gamemaster_main

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.238:443 android.apis.google.com tcp
US 1.1.1.1:53 api.ymkeyxeghj.rocks udp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 142.250.179.232:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 a.asense.in udp
US 208.100.26.245:80 a.asense.in tcp
US 1.1.1.1:53 api.zuisimpleweather.com udp
US 13.248.169.48:80 api.zuisimpleweather.com tcp
GB 172.217.169.14:443 tcp
GB 142.250.200.34:443 tcp
GB 142.250.178.4:443 tcp
GB 142.250.178.4:443 tcp
GB 172.217.169.46:443 tcp

Files

/data/data/com.bjin.gamemaster_main/app_ttmp/t.jar

MD5 9aaea567e0c93e51718ba7eade0e83df
SHA1 0005116aad1779361b70093db00fed5ac090ae23
SHA256 b30a95dff6f65f444472971c8aaf895ffc8e66e0117ce242ec4cb8a8a519a5ec
SHA512 2aef1034335d8752f4e25ce6c5823ce03019536cc6e51ee61b5291c77a0f356a2517e0cbe7f2c4cc2d897115dc856449a342cfdc247c9d34d313187d15b2f890

/data/user/0/com.bjin.gamemaster_main/app_ttmp/t.jar

MD5 f72c3d07507c3e26d317e9117ba757d1
SHA1 cdede4739e9dd9fd95243aab5e44c24f93f825c3
SHA256 1c65834d9ca018c6496a8b9957589d0e94657911b6635dc21a448d78f9238887
SHA512 3420714252e7503abc13c99274d767b0bc08671d769460dc61823ab9470e145fb75c5dfaadc617d3a05cf251ed5ecf38ea7e8c1d7b343bca4d7e8296f1b805d4

/data/data/com.bjin.gamemaster_main/databases/com.bjin.gamemaster_mainb-journal

MD5 7ece75652b328423f6fd27eb4566d524
SHA1 1437d99b3184613bdabd9c024a6bcaa2704691ba
SHA256 dec94ab9a0d8476eadf79e755a87491384ecd4de65a4dadafae3360251585432
SHA512 75c8b5c2a0c8df453e64379717be49a5c8ac8eecdb02fd48c8322526d125fa96cb28d69212aebc4631beb0f2d371fc9d05b470fa7007d4eeba2d9706546a07d0

/data/data/com.bjin.gamemaster_main/databases/com.bjin.gamemaster_mainb

MD5 736b6458d14b79988aaf76dc840d3b1f
SHA1 3814bf7d096a4ffad3ebb437dc51c86b1f08fe0f
SHA256 130d08fcfc1cacbb196d3c1e2db1d4bfc850cdf140858ab5de997b9262f26d44
SHA512 88f3d6791a20e50d20d919158a4e7597a7bd5d59ba87b01b8996a8d115ee4bac6d2754a6a6387774979455b598e0bace7e541c311abdbab4ff5dd79b579fa9e4

/data/data/com.bjin.gamemaster_main/databases/com.bjin.gamemaster_mainb-journal

MD5 46373125e3c6237d5d8ec0f8120c3ea6
SHA1 8a7397099e69eb79981f6fcb3a6ca87bef2fb401
SHA256 1fe914478beaeea5e3e26cc03affc430317879ceff42aff8712a6743d105123c
SHA512 0154f02d1ffd535e6a4a984684d6d7a20ce3148c9b305396d6d294eee03b60e878e516fbd6550873bbd8e4fc48c13fd41fe4df9eb793909b582ca346f176af01

/data/data/com.bjin.gamemaster_main/databases/com.bjin.gamemaster_mainb-journal

MD5 8c6d6bd809b74c53d38a20aabdef8795
SHA1 d3714525c33c3ac72fd33e6b293a063be6869c29
SHA256 53c591728d59c1863c567b1e896ca8ef3b02c2e6357368413453b159f201167c
SHA512 f13ccab3d941d9364bdaf0d46681478d2986bc487f47a68a0535823cbb1ff0346ff814e3f03c70f08290fc633be03c05942773bcfe3cd97cc4283361c6b88053

/data/data/com.bjin.gamemaster_main/databases/com.bjin.gamemaster_mainb-journal

MD5 930712d99bdeda0bc3b19d914b63c74f
SHA1 660284d54ded88f419672cf1ff688aaa359efb3c
SHA256 63cf6d582df147638e044f91ec3fdab1deef01cdbd95cd1d6ae090f62b95b479
SHA512 23a62a75676f2f35ed4e9c617eac2b9496c1f39f2303b8e11cb0c5abae16827c6d6e8cca1005144ae690c4d34b9d8fb579e26d50b5bcf4822850a9bee9c0299c

/data/data/com.bjin.gamemaster_main/app_ttmp/oat/t.jar.cur.prof

MD5 748e41c1e6c341ce60afe435961e97bf
SHA1 7aa366f5ef1626be7d9512a4b3547e3f4667edbe
SHA256 7d3127411da5b8947f7184a0cf8f558caad05e984d3f9ce80778ca58c3817470
SHA512 dafb42b5b9c626815d96ba6ffb962738906dbf7b6eb27165ee98f31ca12ee32241e73a0333b83fe6ec4444c5f0f103bf520b88db724aa4e0629bf194afe8da93

Analysis: behavioral3

Detonation Overview

Submitted

2024-06-05 19:08

Reported

2024-06-05 19:11

Platform

android-x64-arm64-20240603-en

Max time kernel

177s

Max time network

132s

Command Line

com.bjin.gamemaster_main

Signatures

Removes its main activity from the application launcher

stealth trojan evasion
Description Indicator Process Target
N/A N/A N/A N/A

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.bjin.gamemaster_main/app_ttmp/t.jar N/A N/A

Obtains sensitive information copied to the device clipboard

collection credential_access impact
Description Indicator Process Target
Framework service call android.content.IClipboard.addPrimaryClipChangedListener N/A N/A

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

banker discovery

Uses Crypto APIs (Might try to encrypt user data)

impact
Description Indicator Process Target
Framework API call javax.crypto.Cipher.doFinal N/A N/A

Checks memory information

Description Indicator Process Target
File opened for read /proc/meminfo N/A N/A

Processes

com.bjin.gamemaster_main

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.178.10:443 tcp
GB 142.250.178.10:443 tcp
GB 216.58.204.78:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.212.206:443 android.apis.google.com tcp
US 1.1.1.1:53 api.ymkeyxeghj.rocks udp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 142.250.178.8:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 a.asense.in udp
US 208.100.26.245:80 a.asense.in tcp
US 1.1.1.1:53 api.zuisimpleweather.com udp
US 13.248.169.48:80 api.zuisimpleweather.com tcp
GB 216.58.212.196:443 tcp
GB 216.58.212.196:443 tcp

Files

/data/user/0/com.bjin.gamemaster_main/app_ttmp/t.jar

MD5 9aaea567e0c93e51718ba7eade0e83df
SHA1 0005116aad1779361b70093db00fed5ac090ae23
SHA256 b30a95dff6f65f444472971c8aaf895ffc8e66e0117ce242ec4cb8a8a519a5ec
SHA512 2aef1034335d8752f4e25ce6c5823ce03019536cc6e51ee61b5291c77a0f356a2517e0cbe7f2c4cc2d897115dc856449a342cfdc247c9d34d313187d15b2f890

/data/user/0/com.bjin.gamemaster_main/app_ttmp/t.jar

MD5 f72c3d07507c3e26d317e9117ba757d1
SHA1 cdede4739e9dd9fd95243aab5e44c24f93f825c3
SHA256 1c65834d9ca018c6496a8b9957589d0e94657911b6635dc21a448d78f9238887
SHA512 3420714252e7503abc13c99274d767b0bc08671d769460dc61823ab9470e145fb75c5dfaadc617d3a05cf251ed5ecf38ea7e8c1d7b343bca4d7e8296f1b805d4

/data/user/0/com.bjin.gamemaster_main/databases/com.bjin.gamemaster_mainb-journal

MD5 b9ea3cb58ccb83b58af27f0829b34412
SHA1 80fc082c6a14349ebbdc6f396190f4aa3389fd35
SHA256 7cba7160f9140bcbbe54d47c57a8287f1f09d7968319313e4b070e3229471dd9
SHA512 9ba4f3a1dd755c7ec361e9161e200453f646873b997e520f3ad4ff3f89d5cb57b71141081245243c0dad071209f051a8acd1689cdf92f23fd081c6d1a6419d58

/data/user/0/com.bjin.gamemaster_main/databases/com.bjin.gamemaster_mainb

MD5 ee8514bfd1c7734753f856870a60a3d7
SHA1 1fc55e310a84a060e51079e59ebad1b84dc5338e
SHA256 8eba0f67fa317f6d741e950b023c2ae6607ff94e906dd667638ad87f8a191d15
SHA512 ea586cd9a5e1ea6cc484914e667c2a72039c8d0dfdbe707a3f4cceb51b5e5acd8d9915c8d95cef70319ec49f3bb591e64ac361585c05d19d3cd241b682c9a8ed

/data/user/0/com.bjin.gamemaster_main/databases/com.bjin.gamemaster_mainb-journal

MD5 51e5288e5454115f0dad154c9f0f84f5
SHA1 a387699bf0bf456cf5783ea4ad847184f326e1d0
SHA256 026c8102efee3f6b777c4a1aa7c1889d2f66e5889cecba79c3eaa9f438e49be5
SHA512 47846733c1821036192b058a6738f91375414138ee3921e030c7767a889bcde0a015bfe19d46c8a0b899464844794f0505fc64d81e01a433a314dbafea9aa466

/data/user/0/com.bjin.gamemaster_main/databases/com.bjin.gamemaster_mainb-journal

MD5 e4a29b5ed0e1726e2c4421c8f0ca1d22
SHA1 5c59fd3236bdb1ee51677ce3ff9127543ff43d53
SHA256 fe76a924c3245fce7e392de82616e49db48e05ed14b6f3d3a9d6e4eeaa3bfe98
SHA512 9d4a7dcfe8a7e047df5dfcd7b3049a1c0a363fed2508d19b5bc76ef8d975649e80a737acd83318f76fcfaf80b6cf482a2fd7991615beab04c79affc0ded6c9a7

/data/user/0/com.bjin.gamemaster_main/databases/com.bjin.gamemaster_mainb-journal

MD5 69bb3318100588f0247b996561ea840f
SHA1 c69fd3c132b2fafeb03b3c48a9c455490108ef2b
SHA256 06fc6256456e9bf9d615654f5e61ad8b62edca71fc67fba35825ded904487ae4
SHA512 8d4d9265fd0da44aa0ce8b41ceafcc2715ed5abc122d33c4cca04e341209926955cb680085c8d9e847957732e90cadecd101cd506b8fdfb34bf394f3ca8ca511