4100216f945df7d4ff1bd50ce4037d35f442549211795a2317184cedf41d8848

Analysis

max time kernel
150s
max time network
33s
platform
windows7_x64
resource
win7-20230703-en
resource tags

arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
submitted
04/07/2023, 14:37

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General

Target

Busuuv3082600127modapkdon.apk
Size

766KB
MD5

826e37ce0745d4d98c6577b6c6d514a5
SHA1

328eb4d9c82e4ec108d9ba19f885ab6ba8bc36ef
SHA256

4100216f945df7d4ff1bd50ce4037d35f442549211795a2317184cedf41d8848
SHA512

9fc347ec94eb47af061c89175b2ff0bc6c57018f35d206e175f1778f8f3cba1dbd50773a0c899f5a472fa4d95284a59b300ebee2b74e251c4fea0bd5b7c21354
SSDEEP

12288:sU+J7yu2OSFqua5XFnah6HHdrMwOwVW86krYB16L8qPWh94yt5U+y9Q4JL449d3B:HYyu23kua5XFaondDO/ZkUtqq94EC+yv

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\apk_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\apk_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\apk_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\apk_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\apk_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\apk_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\.apk	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\.apk\ = "apk_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
640	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
640	AcroRd32.exe
640	AcroRd32.exe
640	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 2236	2324	cmd.exe	30
PID 2324 wrote to memory of 2236	2324	cmd.exe	30
PID 2324 wrote to memory of 2236	2324	cmd.exe	30
PID 2236 wrote to memory of 640	2236	rundll32.exe	31
PID 2236 wrote to memory of 640	2236	rundll32.exe	31
PID 2236 wrote to memory of 640	2236	rundll32.exe	31
PID 2236 wrote to memory of 640	2236	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Busuuv3082600127modapkdon.apk
1⤵
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Busuuv3082600127modapkdon.apk
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2236
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\Busuuv3082600127modapkdon.apk"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:640

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
1156772902897213c2520f2b5ffbdb63

SHA1
5999bf46581f1cb71a6deec09bcae4706e6f738c

SHA256
0b71028700c543fd33ab1f8c29e9b97a6243553b4829e85ac4d17ad0200a355f

SHA512
a39604e3f2fcad4569765f30e2bd43f6452db62a9333a0f19a55bc1c61368c7872178d5b3d815ce4dd58619108070834fea3837a1934b201ac31b2e81ca998a8

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