843d5892ae16569f2b69899a9b344c4d8a36d441591006c9075c497a3bf7af20

Analysis

max time kernel
150s
max time network
124s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
29-08-2023 18:41

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General

Target

tmp/.org.chromium.Chromium.YAQUpl/afdc25a3e878826efbf18a52aec0c7f46d621ad17c28722054bc30d1607e1215.puff
Size

12KB
MD5

fe602b04d541015f9d62d4d3ef165ce2
SHA1

b8f2f63b7408d2c1ce3d133a2ee2b99def2f45b2
SHA256

afdc25a3e878826efbf18a52aec0c7f46d621ad17c28722054bc30d1607e1215
SHA512

fb26fef1195837123198e6ce1e0a405ae30a7e60bf6a43bb09faec9d030e11f08ac461858374240c5bd1de1bd8a40454eecb3c8fa92de207a6114fd3b588e0ec
SSDEEP

192:Lh7U7Icc/zTWAgjI8YqT0qagCKdCQA087lzUIKcOEPIJlZCoCqK8:Lh7UscogLYqwLgVdbA0YlfnSloa

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-1-5-21-377084978-2088738870-2818360375-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\puff_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\.puff\ = "puff_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\puff_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\puff_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\puff_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\.puff	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\puff_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\puff_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1668	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1668	AcroRd32.exe
1668	AcroRd32.exe
1668	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 2224	1964	cmd.exe	29
PID 1964 wrote to memory of 2224	1964	cmd.exe	29
PID 1964 wrote to memory of 2224	1964	cmd.exe	29
PID 2224 wrote to memory of 1668	2224	rundll32.exe	30
PID 2224 wrote to memory of 1668	2224	rundll32.exe	30
PID 2224 wrote to memory of 1668	2224	rundll32.exe	30
PID 2224 wrote to memory of 1668	2224	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\tmp\.org.chromium.Chromium.YAQUpl\afdc25a3e878826efbf18a52aec0c7f46d621ad17c28722054bc30d1607e1215.puff
1⤵
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\tmp\.org.chromium.Chromium.YAQUpl\afdc25a3e878826efbf18a52aec0c7f46d621ad17c28722054bc30d1607e1215.puff
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2224
- - 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\tmp\.org.chromium.Chromium.YAQUpl\afdc25a3e878826efbf18a52aec0c7f46d621ad17c28722054bc30d1607e1215.puff"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1668

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
2137733de0736662b15eb0480f3a6db4

SHA1
5e243dcb61bcf937a5af6d952d5db9f8a1fae926

SHA256
37d72dc3a6a9408122a945005da95ebb8b38ad3d45f66b5b5ff76bc234a97828

SHA512
53f5355cf899167b390745a2ec5acd73ba87f23f755f2def44155a0a6b4aecc22cbb5321924e9f9c0c682dd12ed71a58ab72d6f90b6058a86d620e737d2b8e7f

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