5936791f7b6363530211e14f8d2f1ddc828df261f5116ab39ce73c50ad90c75d

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
20/02/2024, 11:26

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General

Target

rrpy/DZSB/Add-on/DZSB/dlc.rpf
Size

27.6MB
MD5

71547aaa0a3e8efcbbda306accdd458a
SHA1

4ad76e8f22a38e9d45fe57334bdde04a4c4170df
SHA256

b7c1bc6315eeb814d77533285320aae610ab22cf2141c4e51dd5c7183545dd46
SHA512

bf868a9762a568c99ad7ba697c50e1c46e646094d3ead2a3135b0e63fcd7822c1b948f13ef4bd2c1241f1cf09e6a832a9530feeafc91ac387216f3ba42c3e645
SSDEEP

393216:04RFK0RZ6k35YrrJ8Wk1bYPfccJGCaWoNp3j+9mRz+:0UKeZ6ZvWXtUsCTo/3j+ii

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-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\rpf_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\rpf_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.rpf\ = "rpf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\rpf_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.rpf	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\rpf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\rpf_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\rpf_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
3064	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3064	AcroRd32.exe
3064	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 2656	1756	cmd.exe	29
PID 1756 wrote to memory of 2656	1756	cmd.exe	29
PID 1756 wrote to memory of 2656	1756	cmd.exe	29
PID 2656 wrote to memory of 3064	2656	rundll32.exe	30
PID 2656 wrote to memory of 3064	2656	rundll32.exe	30
PID 2656 wrote to memory of 3064	2656	rundll32.exe	30
PID 2656 wrote to memory of 3064	2656	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\rrpy\DZSB\Add-on\DZSB\dlc.rpf
1⤵
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\rrpy\DZSB\Add-on\DZSB\dlc.rpf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2656
- - 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\rrpy\DZSB\Add-on\DZSB\dlc.rpf"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:3064

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
364349a509483d334026984e9799c3f9

SHA1
4f7eb6b99eb7589d5bced2abbaadf75d9a4f33dd

SHA256
ae01116a697a3c472832533489b9bfd656e679f7e64c905aaca1a8cb3ae40831

SHA512
57f3150ac60d50d8445a762a440adc12d351aef843afcf46f29ba3a70f9f5305e1365a3bc36e42de4f93832a2a6fc0edf04eea8d777512b08fb7b1a76338889d

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