e7c9e8ba3c0dc98fc22b5564c29ad8cd9fe2e08c05b37c860de6e798fc781d6e

Analysis

max time kernel
151s
max time network
49s
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

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General

Target

x-0002-battleclass-effect.rpyc
Size

1KB
MD5

f0c36f7fd7dcbe86257924f03102b70a
SHA1

00534b1da34c70d1c950585ff2bb265a09e13a52
SHA256

63c2751696a44fccf88e02657966c297c674c2378d21248e69be766f4990ea09
SHA512

991076e8e30a0279e584120b738e5714312fa9b2d1a4bd514e81233d5378abc2691eae0f511c35a7a424639f6a7212847deef76e427372251b101a88afbebd8e

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-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\rpyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\.rpyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\.rpyc\ = "rpyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\rpyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\rpyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\rpyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\rpyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1724861073-2584418204-2594431177-1000_CLASSES\rpyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2208	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2184 wrote to memory of 1676	2184	cmd.exe	30
PID 2184 wrote to memory of 1676	2184	cmd.exe	30
PID 2184 wrote to memory of 1676	2184	cmd.exe	30
PID 1676 wrote to memory of 2208	1676	rundll32.exe	31
PID 1676 wrote to memory of 2208	1676	rundll32.exe	31
PID 1676 wrote to memory of 2208	1676	rundll32.exe	31
PID 1676 wrote to memory of 2208	1676	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\x-0002-battleclass-effect.rpyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\x-0002-battleclass-effect.rpyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1676
- - 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-0002-battleclass-effect.rpyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2208

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

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Downloads

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

Filesize
3KB

MD5
38f4085a17ce92d2c22a6ed0d9d81ea8

SHA1
64bd3c16a3a0ed54c52d8dddc5015a374c5d1cae

SHA256
069fce34102832787489f596557fa599b418af6f48b4b4d8c7e1d52891d73933

SHA512
10929b8b31c1e966fe9cd017133f4b87bceb519640392374c0d804379714e41ad1d53da45433ca3f7363f1a2042d6c9f5afe08e209e3cf5a7c95b0cded092901

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