843d5892ae16569f2b69899a9b344c4d8a36d441591006c9075c497a3bf7af20

Analysis

max time kernel
150s
max time network
126s
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/new.schema
Size

26KB
MD5

e02c98bc8c57de5bf4ea21be47ea645c
SHA1

9103fd70bc9eb39382507aae82c8c04d641fe166
SHA256

ca69296031d73576f5bba6b441ca3e05a388299e4e8e7e33db0299ea499a429f
SHA512

39f743abe7a7c4eeffd5a5572f109e288f4a8f5ea2528c32409d6087e3fe63689def68246de3ac8acfdaaf024c292a8bb077dda8f2e505bf293eacb3069622bd
SSDEEP

192:USmNuhGcUti6KtEYGjGUtHixBPHm1sqw44Clqi+1uiqRkCqD0EmoGpKZiteClOlb:UhNzbST6xtlpAyowAU2l

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\schema_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\schema_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\schema_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\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\schema_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\schema_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\.schema	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\.schema\ = "schema_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\schema_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1368	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2908 wrote to memory of 1512	2908	cmd.exe	29
PID 2908 wrote to memory of 1512	2908	cmd.exe	29
PID 2908 wrote to memory of 1512	2908	cmd.exe	29
PID 1512 wrote to memory of 1368	1512	rundll32.exe	30
PID 1512 wrote to memory of 1368	1512	rundll32.exe	30
PID 1512 wrote to memory of 1368	1512	rundll32.exe	30
PID 1512 wrote to memory of 1368	1512	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\tmp\new.schema
1⤵
- Suspicious use of WriteProcessMemory
PID:2908
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\tmp\new.schema
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1512
- - 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\new.schema"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1368

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
15349f30a000bcf2bc90bfdbe61ab019

SHA1
cfcc6fcbd591c6bb430c55c4a58418f62df82ab8

SHA256
dad720775acc936da106a86c8e38fdecc8a51d70a9bae8c30930d0bbdb4e3da8

SHA512
55d22438fb1762faf0d08c6ab14078df8a0926657be34feef050dff841c1ab17f63c4f0b6e44fd089737fed04eeee04ec8af9bf70a196ef622418cd624f46cc4

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