flubot | f1cd0e742102754233bf83ffbb718b3c4c830a603e41cd1090b9cba5331a1933

Analysis

max time kernel
2904840s
max time network
159s
platform
android_x64
resource
android-x64-20231215-en
resource tags

androidarch:x64arch:x86image:android-x64-20231215-enlocale:en-usos:android-10-x64system
submitted
24-12-2023 23:14

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General

Target

189f3eb2f75106a7f9416b1a92800c9f.apk
Size

3.0MB
MD5

189f3eb2f75106a7f9416b1a92800c9f
SHA1

82fbc3c640aee29b8dc0e6a9c88b0eb450b25556
SHA256

f1cd0e742102754233bf83ffbb718b3c4c830a603e41cd1090b9cba5331a1933
SHA512

3e1cb82b714ae058666453c45b899d4af5de33ee7e486f33c27ae716afcbaf5a657386969ad5a5053c6666e4504c26f8a2c7e88b000f5debcb97f91afed13920
SSDEEP

49152:KKXXByEPmieQpAkKKhMpMbKm1SzoNrxHauzZ6Fe5K+xmXzoJgNw9wn3aQQS:K+yE5eQpZh32zojHauF4eY+B9RBS

Score

10^/10

flubot banker discovery infostealer trojan

Malware Config

Signatures

FluBot
FluBot is an android banking trojan that uses overlays.
banker trojan infostealer flubot

FluBot payload 2 IoCs

Processes:

resource	yara_rule
/data/data/com.sina.weibo/app_apkprotector_dex/YNF53gHa.peace	family_flubot
/data/user/0/com.sina.weibo/app_apkprotector_dex/YNF53gHa.peace	family_flubot

Makes use of the framework's Accessibility service 3 IoCs

Retrieves information displayed on the phone screen using AccessibilityService.

Processes:

com.sina.weibo

description	ioc	process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.sina.weibo
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.sina.weibo
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.sina.weibo

Loads dropped Dex/Jar 2 IoCs

Runs executable file dropped to the device during analysis.

Processes:

com.sina.weibo

ioc	pid	process
/data/user/0/com.sina.weibo/app_apkprotector_dex/YNF53gHa.peace	4920	com.sina.weibo
/data/user/0/com.sina.weibo/app_apkprotector_dex/YNF53gHa.peace	4920	com.sina.weibo

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
Uses Crypto APIs (Might try to encrypt user data) 1 IoCs

Processes:

com.sina.weibo

description ioc process

Framework API call javax.crypto.Cipher.doFinal com.sina.weibo

description	ioc	process
Framework API call	javax.crypto.Cipher.doFinal	com.sina.weibo

com.sina.weibo
1⤵
- Makes use of the framework's Accessibility service
- Loads dropped Dex/Jar
- Uses Crypto APIs (Might try to encrypt user data)
PID:4920

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

/data/data/com.sina.weibo/app_apkprotector_dex/YNF53gHa.peace
Filesize
64KB

MD5
55274cc8190c95c4877f684164a52281

SHA1
c5cea9ff8aa67f85c85a58014b807d4b49fe6516

SHA256
d64ae4aaf1a608914bebf0d54b3b5242a06bd908ab5193dd7308fa235345d43e

SHA512
df67f28bed4f1a939b4a12365d26098128cee13106b4ff20d30841dfb3e336d409ce7f201a633299e409a8340ff566333c0622cdb50da7b087d91a1d897a155a

Download Submit
/data/user/0/com.sina.weibo/app_apkprotector_dex/YNF53gHa.peace
Filesize
2.4MB

MD5
dae833e9d575c7512c7d7b78ac3716a4

SHA1
b31cb114f2bf8754915375d3551dd34b1edee59d

SHA256
a979babac04109cb607b3e4e3844b06b5d2ae5044b9543a2e2fee1f40658209b

SHA512
daa982b9d9eb6951ade81ed1e26ab35c4f5d76929629f8c30a6440ff84dfa7044e78baec8a0d2d608fa6032b8065925710f7210f439385edb00bfc4647326e78

Download Submit