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Overview
overview
3Static
static
CodeS.class
windows7-x64
3CodeS.class
windows10-2004-x64
3Init.class
windows7-x64
3Init.class
windows10-2004-x64
3Leak.class
windows7-x64
3Leak.class
windows10-2004-x64
3MyBuff.class
windows7-x64
3MyBuff.class
windows10-2004-x64
3MyBufferedImage.class
windows7-x64
3MyBufferedImage.class
windows10-2004-x64
3MyColorSpace.class
windows7-x64
3MyColorSpace.class
windows10-2004-x64
3W1.class
windows7-x64
3W1.class
windows10-2004-x64
3W2.class
windows7-x64
3W2.class
windows10-2004-x64
3W3.class
windows7-x64
3W3.class
windows10-2004-x64
3W4.class
windows7-x64
3W4.class
windows10-2004-x64
3W5.class
windows7-x64
3W5.class
windows10-2004-x64
3W6.class
windows7-x64
3W6.class
windows10-2004-x64
3Zamanet.class
windows7-x64
3Zamanet.class
windows10-2004-x64
3Analysis
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max time kernel
151s -
max time network
44s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
01/10/2022, 23:22
Static task
static1
Behavioral task
behavioral1
Sample
CodeS.class
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
CodeS.class
Resource
win10v2004-20220812-en
Behavioral task
behavioral3
Sample
Init.class
Resource
win7-20220812-en
Behavioral task
behavioral4
Sample
Init.class
Resource
win10v2004-20220812-en
Behavioral task
behavioral5
Sample
Leak.class
Resource
win7-20220812-en
Behavioral task
behavioral6
Sample
Leak.class
Resource
win10v2004-20220901-en
Behavioral task
behavioral7
Sample
MyBuff.class
Resource
win7-20220812-en
Behavioral task
behavioral8
Sample
MyBuff.class
Resource
win10v2004-20220812-en
Behavioral task
behavioral9
Sample
MyBufferedImage.class
Resource
win7-20220812-en
Behavioral task
behavioral10
Sample
MyBufferedImage.class
Resource
win10v2004-20220901-en
Behavioral task
behavioral11
Sample
MyColorSpace.class
Resource
win7-20220812-en
Behavioral task
behavioral12
Sample
MyColorSpace.class
Resource
win10v2004-20220901-en
Behavioral task
behavioral13
Sample
W1.class
Resource
win7-20220812-en
Behavioral task
behavioral14
Sample
W1.class
Resource
win10v2004-20220812-en
Behavioral task
behavioral15
Sample
W2.class
Resource
win7-20220812-en
Behavioral task
behavioral16
Sample
W2.class
Resource
win10v2004-20220812-en
Behavioral task
behavioral17
Sample
W3.class
Resource
win7-20220812-en
Behavioral task
behavioral18
Sample
W3.class
Resource
win10v2004-20220812-en
Behavioral task
behavioral19
Sample
W4.class
Resource
win7-20220901-en
Behavioral task
behavioral20
Sample
W4.class
Resource
win10v2004-20220812-en
Behavioral task
behavioral21
Sample
W5.class
Resource
win7-20220901-en
Behavioral task
behavioral22
Sample
W5.class
Resource
win10v2004-20220812-en
Behavioral task
behavioral23
Sample
W6.class
Resource
win7-20220901-en
Behavioral task
behavioral24
Sample
W6.class
Resource
win10v2004-20220812-en
Behavioral task
behavioral25
Sample
Zamanet.class
Resource
win7-20220812-en
Behavioral task
behavioral26
Sample
Zamanet.class
Resource
win10v2004-20220812-en
General
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Target
Leak.class
-
Size
527B
-
MD5
c6a9ea57d50d856b44052d269349bf10
-
SHA1
ef7c96c97235f08885ee3c7caa0ca1033472d4c8
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SHA256
6b570c01844b43e3e9d6d4a2d62c454401295764ba7ef8c8506f483bfdbb7769
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SHA512
d1967b8d7d16d374b260f6c953c4e494961ed8d44cbd91e510397e5f2228665d2ab099c7c8897b426b1e26464234d43f7e0844bda3143c128b0cee366addc096
Malware Config
Signatures
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 10 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\ rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\.class\ = "class_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\shell\Read\command rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file rundll32.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\.class rundll32.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1464 AcroRd32.exe 1464 AcroRd32.exe 1464 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1228 wrote to memory of 1244 1228 cmd.exe 28 PID 1228 wrote to memory of 1244 1228 cmd.exe 28 PID 1228 wrote to memory of 1244 1228 cmd.exe 28 PID 1244 wrote to memory of 1464 1244 rundll32.exe 29 PID 1244 wrote to memory of 1464 1244 rundll32.exe 29 PID 1244 wrote to memory of 1464 1244 rundll32.exe 29 PID 1244 wrote to memory of 1464 1244 rundll32.exe 29
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\Leak.class1⤵
- Suspicious use of WriteProcessMemory
PID:1228 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Leak.class2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1244 -
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\Leak.class"3⤵
- Suspicious use of SetWindowsHookEx
PID:1464
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