Analysis
- max time kernel
18s - max time network
38s - platform
android-9_x86 - resource
android-x86-arm-20240910-en - resource tags
- submitted
16/12/2024, 02:59
General
- Target base.apk
- Size 8.4MB
- Sample241216-dgrppa1jfv
- SHA256 c5ab9a0327ac718c196f0fb3709fd6fbeaad327bb5bf1685174f54acbeb79dcf
Malware Config
Extracted
-
octo
Signatures
- Octo
Octo is a banking malware with remote access capabilities first seen in April 2022.
- Octo family
- Octo payload 1 IoCs
- Checks Android system properties for emulator presence. 1 TTPs 1 IoCs
- Loads dropped Dex/Jar 1 TTPs 3 IoCs
Runs executable file dropped to the device during analysis.
- Makes use of the framework's Accessibility service 4 TTPs 2 IoCs
Retrieves information displayed on the phone screen using AccessibilityService.
- Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
- Queries the phone number (MSISDN for GSM devices) 1 TTPs
- Acquires the wake lock 1 IoCs
- Makes use of the framework's foreground persistence service 1 TTPs 1 IoCs
Application may abuse the framework's foreground service to continue running in the foreground.
- Queries the mobile country code (MCC) 1 TTPs 1 IoCs
- Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
- Reads information about phone network operator. 1 TTPs
- Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs
- Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
- Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
- Checks CPU information 2 TTPs 1 IoCs
- Checks memory information 2 TTPs 1 IoCs
Processes
-
com.nexplorer1virtualcontacts1⤵
- Checks Android system properties for emulator presence.
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- Acquires the wake lock
- Makes use of the framework's foreground persistence service
- Queries the mobile country code (MCC)
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Uses Crypto APIs (Might try to encrypt user data)
- Checks CPU information
- Checks memory information
-
/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.nexplorer1virtualcontacts/app_miss/df.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.nexplorer1virtualcontacts/app_miss/oat/x86/df.odex --compiler-filter=quicken --class-loader-context=&2⤵
- Loads dropped Dex/Jar
-
Network
MITRE ATT&CK Mobile v15
Persistence
Event Triggered Execution
1Broadcast Receivers
1Foreground Persistence
1Defense Evasion
Download New Code at Runtime
1Foreground Persistence
1Hide Artifacts
1User Evasion
1Input Injection
1Virtualization/Sandbox Evasion
3System Checks
3Discovery
Software Discovery
1Security Software Discovery
1System Information Discovery
2System Network Configuration Discovery
4Replay Monitor
Loading Replay Monitor...
Downloads
.global.com.nexplorer1virtualcontacts
df.json
df.json
.y
df.json
df.json
Anonymous-DexFile@0xd40f8000-0xd417babc