98b52813707d4293c6150cd7e602240ad1ca266807c3c7225f2a3dbf6de7a13d

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
09/04/2024, 14:41

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General

Target

best/data.pkl
Size

114KB
MD5

3a9f943d6da55be64c0692ba897c7bac
SHA1

6257ec35f5e8bdc29655704c26a2c8ec3c1e4999
SHA256

9666a679353968e69c27f3a8cb21003311fec7b217ef0f95e6e7d659aaf17530
SHA512

aba7f27dcfe5e44aff819e39ced6690482e4e09f07c3c789a46a4380718e97be872be1b62df8fa52c989f23213fc0f2838afb17604f4e719924675b070488a16
SSDEEP

1536:2lBrbLLAm5kG5BFgBCaEbehLr8z2ildu9Jr7y+aZ/7NjaR/97o9JcCZee4zr3ZFa:2rvL5HbehLr8z2iWc0beuJ7sjBz3j

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-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pkl_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pkl_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pkl_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pkl_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pkl	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pkl_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pkl_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pkl\ = "pkl_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2612	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2612	AcroRd32.exe
2612	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 2196	2320	cmd.exe	29
PID 2320 wrote to memory of 2196	2320	cmd.exe	29
PID 2320 wrote to memory of 2196	2320	cmd.exe	29
PID 2196 wrote to memory of 2612	2196	rundll32.exe	30
PID 2196 wrote to memory of 2612	2196	rundll32.exe	30
PID 2196 wrote to memory of 2612	2196	rundll32.exe	30
PID 2196 wrote to memory of 2612	2196	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\best\data.pkl
1⤵
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\best\data.pkl
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2196
- - 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\best\data.pkl"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2612

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
02b958fa24f1a9428da304a7cb1da32f

SHA1
beb17c9e9aae2e5d520e0ea480bd2b3e68013833

SHA256
1b1cb54053afc90c48a17a95d42ef1a2ab9a7341d84524d9a7924b367d02871b

SHA512
7aec4798260b3c06ba786c914c0366670d068692a78895f619008eed7553b7c547b2114b3eb1c59807f679852e8d370229b2643144226a6d1c7ade1e34fc0014

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