b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203

General

Target

b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe
Size

100KB
MD5

1538ed64c62590c5ea5c18fb5e6d9e5b
SHA1

c1135b587775f714cca7eb928bab9440dccb14d5
SHA256

b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203
SHA512

6dd8e320ee23ee9fdea830ca5cc606895b12b2fb781de4c39fd9a91b56bb750e5fb800be11b9138f5edd5dd5f9877989c10abbb94b1cd9d58262263f5365d38f
SSDEEP

1536:fiDhCZHs7rVRZa+bK74ZzHIiG8GH0KRr9MUL29ASKp/IBqm4jrD2nkfWLLRX2:fqCZ8rVeaIiG1U2r97a96OWfDAkoX2

Score

10^/10

ransomware

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\readme_avira9.txt

Ransom Note

What happened? Hello, Admin. Your files have been encrypted with the AES-256 Military Algorithm. You may be searching up how to decrypt your files, it is not possible. You should continue reading this note to see how you could recover your files. What can I do? Only we have the key to decrypt your files, nobody can help you here. If you want your important files back you will need $100 in Bitcoin. When you have this amount, you should e-mail us at: [email protected] Make sure to include your ID, your ID is: vHpB816ylGSdJEXrgVb3943OA What if I don't pay? If you choose not to pay us, after 7 days your files will be rendered useless. We'll also erase your key from our servers forever, no second chances. Even if you can restore your files, we have kept copies on our servers. Meaning all important files you have lost will be leaked onto various forums. If you pay of course, we will erase all your files from our servers. Good luck. ______ .-' '-. / \ | | |, .-. .-. ,| | )(_o/ \o_)( | |/ /\ \| (@_ (_ ^^ _) _ ) \_______\__|IIIIII|__/__________________________ (_)@8@8{}<________|-\IIIIII/-|___________________________> )_/ \ / (@ `--------`

Emails

[email protected]

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe

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

System Information Discovery
T1082

Kills process with taskkill 2 IoCs

evasion

pid	Process
3624	taskkill.exe
1484	taskkill.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings	b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
3708	NOTEPAD.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1484	taskkill.exe
Token: SeDebugPrivilege	3624	taskkill.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4248	b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe
4248	b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe
4248	b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
4248	b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe
4248	b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe
4248	b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4248 wrote to memory of 5036	4248	b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe	85
PID 4248 wrote to memory of 5036	4248	b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe	85
PID 4248 wrote to memory of 1924	4248	b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe	87
PID 4248 wrote to memory of 1924	4248	b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe	87
PID 5036 wrote to memory of 3624	5036	cmd.exe	89
PID 5036 wrote to memory of 3624	5036	cmd.exe	89
PID 1924 wrote to memory of 1484	1924	cmd.exe	90
PID 1924 wrote to memory of 1484	1924	cmd.exe	90
PID 4248 wrote to memory of 3708	4248	b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe	94
PID 4248 wrote to memory of 3708	4248	b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe	94
PID 4248 wrote to memory of 4312	4248	b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe	95
PID 4248 wrote to memory of 4312	4248	b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe	95
PID 4312 wrote to memory of 3024	4312	cmd.exe	97
PID 4312 wrote to memory of 3024	4312	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe
"C:\Users\Admin\AppData\Local\Temp\b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4248
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C taskkill /f /im DefenderDaemon.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5036
- - C:\Windows\system32\taskkill.exe
    taskkill /f /im DefenderDaemon.exe
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3624
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C taskkill /f /im TrueImageMonitor.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1924
- - C:\Windows\system32\taskkill.exe
    taskkill /f /im TrueImageMonitor.exe
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1484
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\readme_avira9.txt
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:3708
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del C:\Users\Admin\AppData\Local\Temp\b14a9c2da96afff8fff645922e6bf4f1ee60e7eefd4b59985d83785f83572203.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4312
- - C:\Windows\system32\choice.exe
    choice /C Y /N /D Y /T 3
    3⤵
    PID:3024

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\Desktop\readme_avira9.txt

Filesize
1KB

MD5
5df91422e5a8b8e992e59546c9143a35

SHA1
a07d73f46a6abae32da563eca342f74c905a2055

SHA256
7eee2776f6571dcc063045dfd2f13c8efff39f831080c2ee72237f6acd7a5bbf

SHA512
f9663b4c601ce494df8944322c80042c103a622d4fd4e9b16ce00995a9fa5aa28ff5350847bc92483de96a52c6049849c02f4866dde4ae5f815e489495161ebc

Download Submit
memory/4248-132-0x00000000007A0000-0x00000000007BE000-memory.dmp

Filesize
120KB

Download
memory/4248-133-0x00007FFAE3640000-0x00007FFAE4101000-memory.dmp

Filesize
10.8MB

Download
memory/4248-134-0x00007FFAE3640000-0x00007FFAE4101000-memory.dmp

Filesize
10.8MB

Download
memory/4248-142-0x00007FFAE3640000-0x00007FFAE4101000-memory.dmp

Filesize
10.8MB

Download

Analysis

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