b38019f9e80c2166a4e09eed0cd15bad651263f0ff3ea26199a08896ffd8e1fc

Resubmissions

05-08-2024 12:08

240805-pa55aavhjp 10

02-08-2024 15:48

03-01-2024 17:25

24-12-2023 19:17

14-12-2023 08:27

03-11-2023 03:07

01-11-2023 22:00

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
24-12-2023 19:17

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General

Target

b38019f9e80c2166a4e09eed0cd15bad651263f0ff3ea26199a08896ffd8e1fc.apk
Size

509KB
MD5

60609814e43a1c814b30435f15d361ed
SHA1

61431ed485c98b8a291e289a7e17e8d3e6db3660
SHA256

b38019f9e80c2166a4e09eed0cd15bad651263f0ff3ea26199a08896ffd8e1fc
SHA512

8efba5603fd4217b9c9c96e28a69f9f262568f76d43fd959d6914694808488f089f01fa92e2d04f44d5aa0859efcfb34fb080dc7b3a49502469598ab90a662fe
SSDEEP

12288:KwGWfjEhy4pNodk6TZFo9nheT5BQ4YvnAu:KnWf0y4GNIsmRvnAu

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

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\apk_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\apk_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\apk_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\apk_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\.apk\ = "apk_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\apk_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\.apk	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\apk_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2168 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2168 AcroRd32.exe
2168 AcroRd32.exe

pid	process
2168	AcroRd32.exe

pid	process
2168	AcroRd32.exe
2168	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2264 wrote to memory of 2036	2264	cmd.exe	rundll32.exe
PID 2264 wrote to memory of 2036	2264	cmd.exe	rundll32.exe
PID 2264 wrote to memory of 2036	2264	cmd.exe	rundll32.exe
PID 2036 wrote to memory of 2168	2036	rundll32.exe	AcroRd32.exe
PID 2036 wrote to memory of 2168	2036	rundll32.exe	AcroRd32.exe
PID 2036 wrote to memory of 2168	2036	rundll32.exe	AcroRd32.exe
PID 2036 wrote to memory of 2168	2036	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\b38019f9e80c2166a4e09eed0cd15bad651263f0ff3ea26199a08896ffd8e1fc.apk
1⤵
- Suspicious use of WriteProcessMemory
PID:2264
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\b38019f9e80c2166a4e09eed0cd15bad651263f0ff3ea26199a08896ffd8e1fc.apk
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2036
- - 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\b38019f9e80c2166a4e09eed0cd15bad651263f0ff3ea26199a08896ffd8e1fc.apk"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2168

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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
90a9c72d5b51f1fd41cdcac7a59ff2f2

SHA1
c769cc2fec9e49aee46e6ff0ae7a3ee0d453343e

SHA256
0b97844e11eccd0ea26da2ca248bbac6a9cf83505de6e92c2866570c2fcf4fb6

SHA512
935faa4397f3de95194c06768114767b7e8f20eecd46f8337b1f36c607c42eceab6335748762fd269544e773d89b92063f41789c52c8a6e6eff845e028a3619f

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