647cd8512704a0053c14024747e97fffd9665d9dbd42d02cc913d252412be54f

General

Target

659985f5f6e1a3108e335a2966087ff3_JaffaCakes118.apk
Size

9.7MB
MD5

659985f5f6e1a3108e335a2966087ff3
SHA1

e7935a245ec44e9cc0ffb715917f0b7cefa8a1d0
SHA256

647cd8512704a0053c14024747e97fffd9665d9dbd42d02cc913d252412be54f
SHA512

8003ab4a64457ff2b929c6b0dbca28088028dd029e9cd55ad05a79020bfc94b95221cdfb34ef143965936137a997e0cb9f325f32493a6de1f23634be7db1ce99
SSDEEP

196608:G5SsgzlfG9z2e0kDNchz108HMewB5LJ3TlA29HyzWz2g9EY46jUuV:dsQlf8jDN+aJewBlJK29yzWz2ZT6j9V

Score

8^/10

discovery evasion impact persistence

Malware Config

Signatures

Checks if the Android device is rooted. 1 TTPs 2 IoCs
evasion

System Information Discovery
T1426

Processes:

com.pengtu.yunxuebao/system/bin/sh -c type su

ioc process

/system/app/Superuser.apk com.pengtu.yunxuebao
/sbin/su /system/bin/sh -c type su
Checks memory information 2 TTPs 1 IoCs
Checks memory information which indicate if the system is an emulator.
evasion discovery

System Checks
T1633.001

System Information Discovery
T1426

Processes:

com.pengtu.yunxuebao

description ioc process

File opened for read /proc/meminfo com.pengtu.yunxuebao
Queries information about the current Wi-Fi connection 1 TTPs 1 IoCs
Application may abuse the framework's APIs to collect information about the current Wi-Fi connection.
discovery

System Network Connections Discovery
T1421

Processes:

com.pengtu.yunxuebao

description ioc process

Framework service call android.net.wifi.IWifiManager.getConnectionInfo com.pengtu.yunxuebao
Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
persistence

Broadcast Receivers
T1624.001

Processes:

com.pengtu.yunxuebao

description ioc process

Framework service call android.app.IActivityManager.registerReceiver com.pengtu.yunxuebao
Checks if the internet connection is available 1 TTPs 1 IoCs
discovery

System Network Connections Discovery
T1421

Processes:

com.pengtu.yunxuebao

description ioc process

Framework service call android.net.IConnectivityManager.getActiveNetworkInfo com.pengtu.yunxuebao
Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
impact

Data Encrypted for Impact
T1471

Processes:

com.pengtu.yunxuebao

description ioc process

Framework API call javax.crypto.Cipher.doFinal com.pengtu.yunxuebao

ioc	process
/system/app/Superuser.apk	com.pengtu.yunxuebao
/sbin/su	/system/bin/sh -c type su

description	ioc	process
File opened for read	/proc/meminfo	com.pengtu.yunxuebao

description	ioc	process
Framework service call	android.net.wifi.IWifiManager.getConnectionInfo	com.pengtu.yunxuebao

description	ioc	process
Framework service call	android.app.IActivityManager.registerReceiver	com.pengtu.yunxuebao

description	ioc	process
Framework service call	android.net.IConnectivityManager.getActiveNetworkInfo	com.pengtu.yunxuebao

description	ioc	process
Framework API call	javax.crypto.Cipher.doFinal	com.pengtu.yunxuebao

com.pengtu.yunxuebao
1⤵
- Checks if the Android device is rooted.
- Checks memory information
- Queries information about the current Wi-Fi connection
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Checks if the internet connection is available
- Uses Crypto APIs (Might try to encrypt user data)
PID:4256

/system/bin/sh -c getprop ro.board.platform
2⤵
PID:4288

getprop ro.board.platform
2⤵
PID:4288

/system/bin/sh -c type su
2⤵
- Checks if the Android device is rooted.
PID:4315

logcat -d -v threadtime
2⤵
PID:4344

logcat -d -v threadtime
2⤵
PID:4362

/system/bin/sh -c getprop ro.miui.ui.version.name
2⤵
PID:4391

getprop ro.miui.ui.version.name
2⤵
PID:4391

/system/bin/sh -c getprop ro.build.version.emui
2⤵
PID:4424

getprop ro.build.version.emui
2⤵
PID:4424

/system/bin/sh -c getprop ro.lenovo.series
2⤵
PID:4453

getprop ro.lenovo.series
2⤵
PID:4453

/system/bin/sh -c getprop ro.build.nubia.rom.name
2⤵
PID:4478

getprop ro.build.nubia.rom.name
2⤵
PID:4478

/system/bin/sh -c getprop ro.meizu.product.model
2⤵
PID:4502

getprop ro.meizu.product.model
2⤵
PID:4502

/system/bin/sh -c getprop ro.build.version.opporom
2⤵
PID:4529

getprop ro.build.version.opporom
2⤵
PID:4529

/system/bin/sh -c getprop ro.vivo.os.build.display.id
2⤵
PID:4554

getprop ro.vivo.os.build.display.id
2⤵
PID:4554

/system/bin/sh -c getprop ro.aa.romver
2⤵
PID:4578

getprop ro.aa.romver
2⤵
PID:4578

/system/bin/sh -c getprop ro.lewa.version
2⤵
PID:4602

getprop ro.lewa.version
2⤵
PID:4602

/system/bin/sh -c getprop ro.gn.gnromvernumber
2⤵
PID:4627

getprop ro.gn.gnromvernumber
2⤵
PID:4627

/system/bin/sh -c getprop ro.build.tyd.kbstyle_version
2⤵
PID:4652

getprop ro.build.tyd.kbstyle_version
2⤵
PID:4652

/system/bin/sh -c getprop ro.build.fingerprint
2⤵
PID:4681

getprop ro.build.fingerprint
2⤵
PID:4681

/system/bin/sh -c getprop ro.build.rom.id
2⤵
PID:4706

getprop ro.build.rom.id
2⤵
PID:4706

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1624

Broadcast Receivers

1

T1624.001

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1633

System Checks

1

T1633.001

Credential Access

Discovery

System Information Discovery

2

T1426

System Network Connections Discovery

2

T1421

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

1

T1471

Replay Monitor

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Downloads

/data/data/com.pengtu.yunxuebao/databases/bugly_db_legu

Filesize
4KB

MD5
f2b4b0190b9f384ca885f0c8c9b14700

SHA1
934ff2646757b5b6e7f20f6a0aa76c7f995d9361

SHA256
0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

SHA512
ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

Download Submit
/data/data/com.pengtu.yunxuebao/databases/bugly_db_legu-journal

Filesize
512B

MD5
659ec3389aae76f02faf7bde9961e34d

SHA1
55a51a6176865cb8fe8a015719128623f050a3c3

SHA256
1c8deab1fc7c7d28c637b8d2af89d86142a3c74b8ae95026a69428a48da9e73d

SHA512
f5593c22222ad7c8f655e22b9a110d72837807bfc21a86323a8ad359b4a939ba09895b8d5b9bf9e412c2610eeb63fa5c20fbb48e1a6ad98731d7c16998a1605b

Download Submit
/data/data/com.pengtu.yunxuebao/databases/bugly_db_legu-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/data/com.pengtu.yunxuebao/databases/bugly_db_legu-wal

Filesize
237KB

MD5
79cb24c492051f13c52cbf99696b1073

SHA1
5da0a852fcf9f84f04bb0b5928ec4406afe62b98

SHA256
1e81d77fe5612e6bdc56de5888c0197f1a4f92821c2394e19ab5b875b4837291

SHA512
00dd23ecfbe03379c3b1994ce79df9ff8ee82c7b4216f6d5d621f3dd48447ba312a52c7fe5d9060f332e92c357a64ae3cce62691154eba0020cb226068ced495

Download Submit

Analysis

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