76a1ff6c0d7827ecd0857e5a9b5298337f232662767abf0f011154c85b6da8ef

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
09-01-2024 00:33

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

shaders/composite.fsh
Size

25KB
MD5

63220d073e0463861b12b911ea29d437
SHA1

5eace3075403d0c7957dba33963f1099e9f3f133
SHA256

82bdbec1402bd6f6f16083f0ab1841fbecbcc06063f7d10cd378ab6beddf64e0
SHA512

1bfa5749c3805bc776df45b202f998cc934f0746ac50231e22657ec4eefe5bfc54b839cdb1b96acc61516d6858a29edfd018c7003eb5ee2ea0eb58b247f2382f
SSDEEP

768:Sw9NEMasP4NhQ3cBFfJiN7OnsI+OR58sXHnaCQgqzeos:Sw3LasP4jQ3cBFRi9OnsI+OR58sXtQgd

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-1-5-21-3308111660-3636268597-2291490419-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\fsh_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\fsh_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\.fsh\ = "fsh_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\fsh_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\fsh_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\fsh_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\fsh_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\.fsh	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2596	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2596	AcroRd32.exe
2596	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 1988	2168	cmd.exe	28
PID 2168 wrote to memory of 1988	2168	cmd.exe	28
PID 2168 wrote to memory of 1988	2168	cmd.exe	28
PID 1988 wrote to memory of 2596	1988	rundll32.exe	29
PID 1988 wrote to memory of 2596	1988	rundll32.exe	29
PID 1988 wrote to memory of 2596	1988	rundll32.exe	29
PID 1988 wrote to memory of 2596	1988	rundll32.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\shaders\composite.fsh
1⤵
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\shaders\composite.fsh
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1988
- - 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\shaders\composite.fsh"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2596

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

Loading Replay Monitor...

Downloads

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

Filesize
3KB

MD5
694d6af9f2ec447727184472569bf483

SHA1
5f6635a2f95611c4b24891e0faec187a965de2a9

SHA256
9da077eda023e779e46d0b4c755545c669320b77b1120fee8937fb33529d5d0a

SHA512
5aae9ee6b3169019efe2257243c49c1f5c5534791c9b797dceb367456e685c3fe1428a4651bea187c81b170bd029517ab6d1ab03d00de8879b1afd647940b182

Download Submit