e7c9e8ba3c0dc98fc22b5564c29ad8cd9fe2e08c05b37c860de6e798fc781d6e

Analysis

max time kernel
150s
max time network
46s
platform
windows7_x64
resource
win7-20230703-en
resource tags

arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
submitted
11-07-2023 02:43

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

x-0004-battleclass-passive.rpyc
Size

1KB
MD5

fa0aaf7427be59c6d53bac03fbb08a1f
SHA1

4bc5bdd661cb55c8e7ac682a044a9d497fbcc027
SHA256

9ffab64e777098579505170fb6cc7e864cb1dc7cfd1deda5837c0e25ee0d52b1
SHA512

e2007828010f7c5ca7d3e878178bbfbabcff3bb8c8b6f7e0fc8de07d4e939019aa1beccc1e9df9d18b88b9bf1dd0342475b0503f74c08e30cf8a13b9bb54331f

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
Set value (str)	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\rpyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\rpyc_auto_file\shell\Read\command	rundll32.exe
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\rpyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\.rpyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\.rpyc\ = "rpyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\rpyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\rpyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1305762978-1813183296-1799492538-1000_CLASSES\rpyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2968	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2968	AcroRd32.exe
2968	AcroRd32.exe
2968	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 1448	2348	cmd.exe	29
PID 2348 wrote to memory of 1448	2348	cmd.exe	29
PID 2348 wrote to memory of 1448	2348	cmd.exe	29
PID 1448 wrote to memory of 2968	1448	rundll32.exe	30
PID 1448 wrote to memory of 2968	1448	rundll32.exe	30
PID 1448 wrote to memory of 2968	1448	rundll32.exe	30
PID 1448 wrote to memory of 2968	1448	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\x-0004-battleclass-passive.rpyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\x-0004-battleclass-passive.rpyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1448
- - 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\x-0004-battleclass-passive.rpyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2968

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

Loading Replay Monitor...

Downloads

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

Filesize
3KB

MD5
2b7cd5d1f6bb22e47a11901d9f23b3ca

SHA1
aa71fb7b2d99d55274693cd56b7178d6b9ea1ce5

SHA256
fdba090326d62c2164e79933c5ef7027c141464497fe5403f07fca65e0e649e4

SHA512
c647f9c76a02c97ec4cb42976d13edd298caeacb6777ae03ba40a5414bc959c2843cac69d80da4358d46a0b177c5793df5945d45453e121e6c8bbcf7f783a06d

Download Submit