58b5c71cb21b0c9327216aff93feed72365921d396e21eab0f2413a84fdd833f

Analysis

max time kernel
152s
max time network
47s
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

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General

Target

Zamanet.class
Size

1KB
MD5

2bffb656a0cb7c587a70919987c2c0cd
SHA1

05c31e9f3e797bc87631640616e568955d51cb33
SHA256

18884d977159e7e1b2edf11eae2eb5207d60b518c46d27ce8107159f59e63165
SHA512

1b40a24d3d6b91e7ba7dda33091a46945756ad3749cbb4759ceaf1bb8e9931fe0a2cc84964b51447c408940a394089a09626a16330efa910465fd2b2a0ed27f9

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 10 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\class_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_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-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\class_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\class_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\class_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.class	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.class\ = "class_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\class_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
752	AcroRd32.exe
752	AcroRd32.exe
752	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1072 wrote to memory of 1408	1072	cmd.exe	28
PID 1072 wrote to memory of 1408	1072	cmd.exe	28
PID 1072 wrote to memory of 1408	1072	cmd.exe	28
PID 1408 wrote to memory of 752	1408	rundll32.exe	30
PID 1408 wrote to memory of 752	1408	rundll32.exe	30
PID 1408 wrote to memory of 752	1408	rundll32.exe	30
PID 1408 wrote to memory of 752	1408	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Zamanet.class
1⤵
- Suspicious use of WriteProcessMemory
PID:1072
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Zamanet.class
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1408
- - 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\Zamanet.class"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:752

Network

MITRE ATT&CK Enterprise v6

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

memory/752-82-0x0000000074C91000-0x0000000074C93000-memory.dmp

Filesize
8KB

Download
memory/1072-54-0x000007FEFB761000-0x000007FEFB763000-memory.dmp

Filesize
8KB

Download