3a08e3bfec2db5dbece359ac9662e65361a8625a0122e68b56cd5ef3aedf8ce1

Resubmissions

22/02/2022, 06:41

220222-hf9w4adfe5 10

20/01/2022, 18:55

220120-xk4cfabbe7 10

Analysis

max time kernel
150s
max time network
120s
platform
windows7_x64
resource
win7-en-20211208
submitted
20/01/2022, 18:55

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General

Target

3a08e3bfec2db5dbece359ac9662e65361a8625a0122e68b56cd5ef3aedf8ce1.bin
Size

1.8MB
MD5

92ed8739cfb9132c8b57016e3c071a28
SHA1

362aa21546904629b28a56c9d5c4bfd3b53296f5
SHA256

3a08e3bfec2db5dbece359ac9662e65361a8625a0122e68b56cd5ef3aedf8ce1
SHA512

755cab9f92d9bb39b1afc890e6d220f1e9ff884bb5c9ab9a526dd7af204fa88c21d88fb2c153c28eb577a5730548dca3ad8ffa20d3b31ed3fb550fce98f7c3d3

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-1-5-21-2329389628-4064185017-3901522362-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_CLASSES\.bin	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_CLASSES\bin_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_CLASSES\bin_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_CLASSES\bin_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_CLASSES\bin_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_CLASSES\bin_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_CLASSES\.bin\ = "bin_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_CLASSES\bin_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
560	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
560	AcroRd32.exe
560	AcroRd32.exe
560	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1484 wrote to memory of 460	1484	cmd.exe	28
PID 1484 wrote to memory of 460	1484	cmd.exe	28
PID 1484 wrote to memory of 460	1484	cmd.exe	28
PID 460 wrote to memory of 560	460	rundll32.exe	29
PID 460 wrote to memory of 560	460	rundll32.exe	29
PID 460 wrote to memory of 560	460	rundll32.exe	29
PID 460 wrote to memory of 560	460	rundll32.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\3a08e3bfec2db5dbece359ac9662e65361a8625a0122e68b56cd5ef3aedf8ce1.bin
1⤵
- Suspicious use of WriteProcessMemory
PID:1484
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\3a08e3bfec2db5dbece359ac9662e65361a8625a0122e68b56cd5ef3aedf8ce1.bin
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:460
- - 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\3a08e3bfec2db5dbece359ac9662e65361a8625a0122e68b56cd5ef3aedf8ce1.bin"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:560

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/560-63-0x0000000074B21000-0x0000000074B23000-memory.dmp

Filesize
8KB

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memory/1484-55-0x000007FEFB631000-0x000007FEFB633000-memory.dmp

Filesize
8KB

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